diff --git a/CHANGES.txt b/CHANGES.txt
index ece4fea..f6eefa2 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -41,6 +41,9 @@
     HADOOP-7013. Add boolean field isCorrupt to BlockLocation. 
     (Patrick Kling via hairong)
 
+    HADOOP-6978. Adds support for NativeIO using JNI. 
+    (Todd Lipcon, Devaraj Das & Owen O'Malley via ddas)
+
   IMPROVEMENTS
 
     HADOOP-6644. util.Shell getGROUPS_FOR_USER_COMMAND method name 
diff --git a/build.xml b/build.xml
index d84bd96..3ae15c2 100644
--- a/build.xml
+++ b/build.xml
@@ -366,6 +366,7 @@
   	
     <mkdir dir="${build.native}/lib"/>
     <mkdir dir="${build.native}/src/org/apache/hadoop/io/compress/zlib"/>
+    <mkdir dir="${build.native}/src/org/apache/hadoop/io/nativeio"/>
     <mkdir dir="${build.native}/src/org/apache/hadoop/security"/>
 
   	<javah 
@@ -386,6 +387,14 @@
   	  >
   	  <class name="org.apache.hadoop.security.JniBasedUnixGroupsMapping" />
   	</javah>
+  	<javah
+  	  classpath="${build.classes}"
+  	  destdir="${build.native}/src/org/apache/hadoop/io/nativeio"
+      force="yes"
+  	  verbose="yes"
+  	  >
+  	  <class name="org.apache.hadoop.io.nativeio.NativeIO" />
+  	</javah>
 
 	<exec dir="${build.native}" executable="sh" failonerror="true">
 	  <env key="OS_NAME" value="${os.name}"/>
diff --git a/src/java/org/apache/hadoop/io/SecureIOUtils.java b/src/java/org/apache/hadoop/io/SecureIOUtils.java
new file mode 100644
index 0000000..321b0e8
--- /dev/null
+++ b/src/java/org/apache/hadoop/io/SecureIOUtils.java
@@ -0,0 +1,208 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.io;
+
+import java.io.File;
+import java.io.FileDescriptor;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.io.nativeio.Errno;
+import org.apache.hadoop.io.nativeio.NativeIO;
+import org.apache.hadoop.io.nativeio.NativeIOException;
+import org.apache.hadoop.io.nativeio.NativeIO.Stat;
+import org.apache.hadoop.security.UserGroupInformation;
+
+/**
+ * This class provides secure APIs for opening and creating files on the local
+ * disk. The main issue this class tries to handle is that of symlink traversal.
+ * <br/>
+ * An example of such an attack is:
+ * <ol>
+ * <li> Malicious user removes his task's syslog file, and puts a link to the
+ * jobToken file of a target user.</li>
+ * <li> Malicious user tries to open the syslog file via the servlet on the
+ * tasktracker.</li>
+ * <li> The tasktracker is unaware of the symlink, and simply streams the contents
+ * of the jobToken file. The malicious user can now access potentially sensitive
+ * map outputs, etc. of the target user's job.</li>
+ * </ol>
+ * A similar attack is possible involving task log truncation, but in that case
+ * due to an insecure write to a file.
+ * <br/>
+ */
+public class SecureIOUtils {
+
+  /**
+   * Ensure that we are set up to run with the appropriate native support code.
+   * If security is disabled, and the support code is unavailable, this class
+   * still tries its best to be secure, but is vulnerable to some race condition
+   * attacks.
+   *
+   * If security is enabled but the support code is unavailable, throws a
+   * RuntimeException since we don't want to run insecurely.
+   */
+  static {
+    boolean shouldBeSecure = UserGroupInformation.isSecurityEnabled();
+    boolean canBeSecure = NativeIO.isAvailable();
+
+    if (!canBeSecure && shouldBeSecure) {
+      throw new RuntimeException(
+        "Secure IO is not possible without native code extensions.");
+    }
+
+    // Pre-cache an instance of the raw FileSystem since we sometimes
+    // do secure IO in a shutdown hook, where this call could fail.
+    try {
+      rawFilesystem = FileSystem.getLocal(new Configuration()).getRaw();
+    } catch (IOException ie) {
+      throw new RuntimeException(
+      "Couldn't obtain an instance of RawLocalFileSystem.");
+    }
+
+    // SecureIO just skips security checks in the case that security is
+    // disabled
+    skipSecurity = !canBeSecure;
+  }
+
+  private final static boolean skipSecurity;
+  private final static FileSystem rawFilesystem;
+
+  /**
+   * Open the given File for read access, verifying the expected user/group
+   * constraints.
+   * @param f the file that we are trying to open
+   * @param expectedOwner the expected user owner for the file
+   * @param expectedGroup the expected group owner for the file
+   * @throws IOException if an IO Error occurred, or the user/group does not 
+   * match
+   */
+  public static FileInputStream openForRead(File f, String expectedOwner, 
+      String expectedGroup) throws IOException {
+    if (skipSecurity) {
+      // Subject to race conditions but this is the best we can do
+      FileStatus status =
+        rawFilesystem.getFileStatus(new Path(f.getAbsolutePath()));
+      checkStat(f, status.getOwner(), status.getGroup(),
+          expectedOwner, expectedGroup);
+      return new FileInputStream(f);
+    }
+
+    FileInputStream fis = new FileInputStream(f);
+    boolean success = false;
+    try {
+      Stat stat = NativeIO.fstat(fis.getFD());
+      checkStat(f, stat.getOwner(), stat.getGroup(), expectedOwner,
+          expectedGroup);
+      success = true;
+      return fis;
+    } finally {
+      if (!success) {
+        fis.close();
+      }
+    }
+  }
+
+  private static FileOutputStream insecureCreateForWrite(File f,
+      int permissions) throws IOException {
+    // If we can't do real security, do a racy exists check followed by an
+    // open and chmod
+    if (f.exists()) {
+      throw new AlreadyExistsException("File " + f + " already exists");
+    }
+    FileOutputStream fos = new FileOutputStream(f);
+    boolean success = false;
+    try {
+      rawFilesystem.setPermission(new Path(f.getAbsolutePath()),
+        new FsPermission((short)permissions));
+      success = true;
+      return fos;
+    } finally {
+      if (!success) {
+        fos.close();
+      }
+    }
+  }
+
+  /**
+   * Open the specified File for write access, ensuring that it does not exist.
+   * @param f the file that we want to create
+   * @param permissions we want to have on the file (if security is enabled)
+   *
+   * @throws AlreadyExistsException if the file already exists
+   * @throws IOException if any other error occurred
+   */
+  public static FileOutputStream createForWrite(File f, int permissions)
+  throws IOException {
+    if (skipSecurity) {
+      return insecureCreateForWrite(f, permissions);
+    } else {
+      // Use the native wrapper around open(2)
+      try {
+        FileDescriptor fd = NativeIO.open(f.getAbsolutePath(),
+          NativeIO.O_WRONLY | NativeIO.O_CREAT | NativeIO.O_EXCL,
+          permissions);
+        return new FileOutputStream(fd);
+      } catch (NativeIOException nioe) {
+        if (nioe.getErrno() == Errno.EEXIST) {
+          throw new AlreadyExistsException(nioe);
+        }
+        throw nioe;
+      }
+    }
+  }
+
+  private static void checkStat(File f, String owner, String group, 
+      String expectedOwner, 
+      String expectedGroup) throws IOException {
+    if (expectedOwner != null &&
+        !expectedOwner.equals(owner)) {
+      throw new IOException(
+        "Owner '" + owner + "' for path " + f + " did not match " +
+        "expected owner '" + expectedOwner + "'");
+    }
+    if (expectedGroup != null &&
+        !expectedGroup.equals(group)) {
+      throw new IOException(
+        "Group '" + group + "' for path " + f + " did not match " +
+        "expected group '" + expectedGroup + "'");
+    }
+  }
+
+  /**
+   * Signals that an attempt to create a file at a given pathname has failed
+   * because another file already existed at that path.
+   */
+  public static class AlreadyExistsException extends IOException {
+    private static final long serialVersionUID = 1L;
+
+    public AlreadyExistsException(String msg) {
+      super(msg);
+    }
+
+    public AlreadyExistsException(Throwable cause) {
+      super(cause);
+    }
+  }
+}
diff --git a/src/java/org/apache/hadoop/io/nativeio/Errno.java b/src/java/org/apache/hadoop/io/nativeio/Errno.java
new file mode 100644
index 0000000..b48f76d
--- /dev/null
+++ b/src/java/org/apache/hadoop/io/nativeio/Errno.java
@@ -0,0 +1,60 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.io.nativeio;
+
+/**
+ * Enum representing POSIX errno values.
+ */
+public enum Errno {
+  EPERM,
+  ENOENT,
+  ESRCH,
+  EINTR,
+  EIO,
+  ENXIO,
+  E2BIG,
+  ENOEXEC,
+  EBADF,
+  ECHILD,
+  EAGAIN,
+  ENOMEM,
+  EACCES,
+  EFAULT,
+  ENOTBLK,
+  EBUSY,
+  EEXIST,
+  EXDEV,
+  ENODEV,
+  ENOTDIR,
+  EISDIR,
+  EINVAL,
+  ENFILE,
+  EMFILE,
+  ENOTTY,
+  ETXTBSY,
+  EFBIG,
+  ENOSPC,
+  ESPIPE,
+  EROFS,
+  EMLINK,
+  EPIPE,
+  EDOM,
+  ERANGE,
+
+  UNKNOWN;
+}
diff --git a/src/java/org/apache/hadoop/io/nativeio/NativeIO.java b/src/java/org/apache/hadoop/io/nativeio/NativeIO.java
new file mode 100644
index 0000000..6e16c73
--- /dev/null
+++ b/src/java/org/apache/hadoop/io/nativeio/NativeIO.java
@@ -0,0 +1,126 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.io.nativeio;
+
+import java.io.FileDescriptor;
+import java.io.IOException;
+
+import org.apache.hadoop.util.NativeCodeLoader;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+/**
+ * JNI wrappers for various native IO-related calls not available in Java.
+ * These functions should generally be used alongside a fallback to another
+ * more portable mechanism.
+ */
+public class NativeIO {
+  // Flags for open() call from bits/fcntl.h
+  public static final int O_RDONLY   =    00;
+  public static final int O_WRONLY   =    01;
+  public static final int O_RDWR     =    02;
+  public static final int O_CREAT    =  0100;
+  public static final int O_EXCL     =  0200;
+  public static final int O_NOCTTY   =  0400;
+  public static final int O_TRUNC    = 01000;
+  public static final int O_APPEND   = 02000;
+  public static final int O_NONBLOCK = 04000;
+  public static final int O_SYNC   =  010000;
+  public static final int O_ASYNC  =  020000;
+  public static final int O_FSYNC = O_SYNC;
+  public static final int O_NDELAY = O_NONBLOCK;
+
+  private static final Log LOG = LogFactory.getLog(NativeIO.class);
+
+  private static boolean nativeLoaded = false;
+
+  static {
+    if (NativeCodeLoader.isNativeCodeLoaded()) {
+      try {
+        initNative();
+        nativeLoaded = true;
+      } catch (Throwable t) {
+        // This can happen if the user has an older version of libhadoop.so
+        // installed - in this case we can continue without native IO
+        // after warning
+        LOG.error("Unable to initialize NativeIO libraries", t);
+      }
+    }
+  }
+
+  /**
+   * Return true if the JNI-based native IO extensions are available.
+   */
+  public static boolean isAvailable() {
+    return NativeCodeLoader.isNativeCodeLoaded() && nativeLoaded;
+  }
+
+  /** Wrapper around open(2) */
+  public static native FileDescriptor open(String path, int flags, int mode) throws IOException;
+  /** Wrapper around fstat(2) */
+  public static native Stat fstat(FileDescriptor fd) throws IOException;
+  /** Initialize the JNI method ID and class ID cache */
+  private static native void initNative();
+
+
+  /**
+   * Result type of the fstat call
+   */
+  public static class Stat {
+    private String owner, group;
+    private int mode;
+
+    // Mode constants
+    public static final int S_IFMT = 0170000;      /* type of file */
+    public static final int   S_IFIFO  = 0010000;  /* named pipe (fifo) */
+    public static final int   S_IFCHR  = 0020000;  /* character special */
+    public static final int   S_IFDIR  = 0040000;  /* directory */
+    public static final int   S_IFBLK  = 0060000;  /* block special */
+    public static final int   S_IFREG  = 0100000;  /* regular */
+    public static final int   S_IFLNK  = 0120000;  /* symbolic link */
+    public static final int   S_IFSOCK = 0140000;  /* socket */
+    public static final int   S_IFWHT  = 0160000;  /* whiteout */
+    public static final int S_ISUID = 0004000;  /* set user id on execution */
+    public static final int S_ISGID = 0002000;  /* set group id on execution */
+    public static final int S_ISVTX = 0001000;  /* save swapped text even after use */
+    public static final int S_IRUSR = 0000400;  /* read permission, owner */
+    public static final int S_IWUSR = 0000200;  /* write permission, owner */
+    public static final int S_IXUSR = 0000100;  /* execute/search permission, owner */
+
+    Stat(String owner, String group, int mode) {
+      this.owner = owner;
+      this.group = group;
+      this.mode = mode;
+    }
+
+    public String toString() {
+      return "Stat(owner='" + owner + "', group='" + group + "'" +
+        ", mode=" + mode + ")";
+    }
+
+    public String getOwner() {
+      return owner;
+    }
+    public String getGroup() {
+      return group;
+    }
+    public int getMode() {
+      return mode;
+    }
+  }
+}
diff --git a/src/java/org/apache/hadoop/io/nativeio/NativeIOException.java b/src/java/org/apache/hadoop/io/nativeio/NativeIOException.java
new file mode 100644
index 0000000..5064df5
--- /dev/null
+++ b/src/java/org/apache/hadoop/io/nativeio/NativeIOException.java
@@ -0,0 +1,46 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.io.nativeio;
+
+import java.io.IOException;
+
+/**
+ * An exception generated by a call to the native IO code.
+ *
+ * These exceptions simply wrap <i>errno</i> result codes.
+ */
+public class NativeIOException extends IOException {
+  private static final long serialVersionUID = 1L;
+
+  private Errno errno;
+
+  public NativeIOException(String msg, Errno errno) {
+    super(msg);
+    this.errno = errno;
+  }
+
+  public Errno getErrno() {
+    return errno;
+  }
+
+  public String toString() {
+    return errno.toString() + ": " + super.getMessage();
+  }
+}
+
+
diff --git a/src/native/Makefile.am b/src/native/Makefile.am
index c731a6d..b99e24a 100644
--- a/src/native/Makefile.am
+++ b/src/native/Makefile.am
@@ -33,7 +33,8 @@
 
 AM_CPPFLAGS = @JNI_CPPFLAGS@ -I$(HADOOP_NATIVE_SRCDIR)/src \
               -Isrc/org/apache/hadoop/io/compress/zlib \
-              -Isrc/org/apache/hadoop/security
+              -Isrc/org/apache/hadoop/security \
+              -Isrc/org/apache/hadoop/io/nativeio/
 AM_LDFLAGS = @JNI_LDFLAGS@ -m$(JVM_DATA_MODEL)
 AM_CFLAGS = -g -Wall -fPIC -O2 -m$(JVM_DATA_MODEL)
 
@@ -41,8 +42,12 @@
 libhadoop_la_SOURCES = src/org/apache/hadoop/io/compress/zlib/ZlibCompressor.c \
                        src/org/apache/hadoop/io/compress/zlib/ZlibDecompressor.c \
                        src/org/apache/hadoop/security/getGroup.c \
-                       src/org/apache/hadoop/security/JniBasedUnixGroupsMapping.c
-libhadoop_la_LDFLAGS = -version-info 1:0:0
+                       src/org/apache/hadoop/security/JniBasedUnixGroupsMapping.c \
+                       src/org/apache/hadoop/io/nativeio/file_descriptor.c \
+                       src/org/apache/hadoop/io/nativeio/errno_enum.c \
+                       src/org/apache/hadoop/io/nativeio/NativeIO.c
+
+libhadoop_la_LDFLAGS = -version-info 1:0:0 $(AM_LDFLAGS)
 libhadoop_la_LIBADD = -ldl -ljvm
 
 #
diff --git a/src/native/Makefile.in b/src/native/Makefile.in
index d71b874..554fcb8 100644
--- a/src/native/Makefile.in
+++ b/src/native/Makefile.in
@@ -93,7 +93,8 @@
 LTLIBRARIES = $(lib_LTLIBRARIES)
 libhadoop_la_DEPENDENCIES =
 am_libhadoop_la_OBJECTS = ZlibCompressor.lo ZlibDecompressor.lo \
-	getGroup.lo JniBasedUnixGroupsMapping.lo
+	getGroup.lo JniBasedUnixGroupsMapping.lo file_descriptor.lo \
+	errno_enum.lo NativeIO.lo
 libhadoop_la_OBJECTS = $(am_libhadoop_la_OBJECTS)
 DEFAULT_INCLUDES = -I. -I$(srcdir) -I.
 depcomp = $(SHELL) $(top_srcdir)/config/depcomp
@@ -222,7 +223,8 @@
 target_alias = @target_alias@
 AM_CPPFLAGS = @JNI_CPPFLAGS@ -I$(HADOOP_NATIVE_SRCDIR)/src \
               -Isrc/org/apache/hadoop/io/compress/zlib \
-              -Isrc/org/apache/hadoop/security
+              -Isrc/org/apache/hadoop/security \
+              -Isrc/org/apache/hadoop/io/nativeio/
 
 AM_LDFLAGS = @JNI_LDFLAGS@ -m$(JVM_DATA_MODEL)
 AM_CFLAGS = -g -Wall -fPIC -O2 -m$(JVM_DATA_MODEL)
@@ -230,9 +232,12 @@
 libhadoop_la_SOURCES = src/org/apache/hadoop/io/compress/zlib/ZlibCompressor.c \
                        src/org/apache/hadoop/io/compress/zlib/ZlibDecompressor.c \
                        src/org/apache/hadoop/security/getGroup.c \
-                       src/org/apache/hadoop/security/JniBasedUnixGroupsMapping.c
+                       src/org/apache/hadoop/security/JniBasedUnixGroupsMapping.c \
+                       src/org/apache/hadoop/io/nativeio/file_descriptor.c \
+                       src/org/apache/hadoop/io/nativeio/errno_enum.c \
+                       src/org/apache/hadoop/io/nativeio/NativeIO.c
 
-libhadoop_la_LDFLAGS = -version-info 1:0:0
+libhadoop_la_LDFLAGS = -version-info 1:0:0 $(AM_LDFLAGS)
 libhadoop_la_LIBADD = -ldl -ljvm
 all: config.h
 	$(MAKE) $(AM_MAKEFLAGS) all-am
@@ -326,8 +331,11 @@
 	-rm -f *.tab.c
 
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/JniBasedUnixGroupsMapping.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/NativeIO.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ZlibCompressor.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ZlibDecompressor.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/errno_enum.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/file_descriptor.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/getGroup.Plo@am__quote@
 
 .c.o:
@@ -379,6 +387,27 @@
 @AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
 @am__fastdepCC_FALSE@	$(LIBTOOL) --tag=CC --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o JniBasedUnixGroupsMapping.lo `test -f 'src/org/apache/hadoop/security/JniBasedUnixGroupsMapping.c' || echo '$(srcdir)/'`src/org/apache/hadoop/security/JniBasedUnixGroupsMapping.c
 
+file_descriptor.lo: src/org/apache/hadoop/io/nativeio/file_descriptor.c
+@am__fastdepCC_TRUE@	if $(LIBTOOL) --tag=CC --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT file_descriptor.lo -MD -MP -MF "$(DEPDIR)/file_descriptor.Tpo" -c -o file_descriptor.lo `test -f 'src/org/apache/hadoop/io/nativeio/file_descriptor.c' || echo '$(srcdir)/'`src/org/apache/hadoop/io/nativeio/file_descriptor.c; \
+@am__fastdepCC_TRUE@	then mv -f "$(DEPDIR)/file_descriptor.Tpo" "$(DEPDIR)/file_descriptor.Plo"; else rm -f "$(DEPDIR)/file_descriptor.Tpo"; exit 1; fi
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='src/org/apache/hadoop/io/nativeio/file_descriptor.c' object='file_descriptor.lo' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(LIBTOOL) --tag=CC --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o file_descriptor.lo `test -f 'src/org/apache/hadoop/io/nativeio/file_descriptor.c' || echo '$(srcdir)/'`src/org/apache/hadoop/io/nativeio/file_descriptor.c
+
+errno_enum.lo: src/org/apache/hadoop/io/nativeio/errno_enum.c
+@am__fastdepCC_TRUE@	if $(LIBTOOL) --tag=CC --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT errno_enum.lo -MD -MP -MF "$(DEPDIR)/errno_enum.Tpo" -c -o errno_enum.lo `test -f 'src/org/apache/hadoop/io/nativeio/errno_enum.c' || echo '$(srcdir)/'`src/org/apache/hadoop/io/nativeio/errno_enum.c; \
+@am__fastdepCC_TRUE@	then mv -f "$(DEPDIR)/errno_enum.Tpo" "$(DEPDIR)/errno_enum.Plo"; else rm -f "$(DEPDIR)/errno_enum.Tpo"; exit 1; fi
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='src/org/apache/hadoop/io/nativeio/errno_enum.c' object='errno_enum.lo' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(LIBTOOL) --tag=CC --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o errno_enum.lo `test -f 'src/org/apache/hadoop/io/nativeio/errno_enum.c' || echo '$(srcdir)/'`src/org/apache/hadoop/io/nativeio/errno_enum.c
+
+NativeIO.lo: src/org/apache/hadoop/io/nativeio/NativeIO.c
+@am__fastdepCC_TRUE@	if $(LIBTOOL) --tag=CC --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -MT NativeIO.lo -MD -MP -MF "$(DEPDIR)/NativeIO.Tpo" -c -o NativeIO.lo `test -f 'src/org/apache/hadoop/io/nativeio/NativeIO.c' || echo '$(srcdir)/'`src/org/apache/hadoop/io/nativeio/NativeIO.c; \
+@am__fastdepCC_TRUE@	then mv -f "$(DEPDIR)/NativeIO.Tpo" "$(DEPDIR)/NativeIO.Plo"; else rm -f "$(DEPDIR)/NativeIO.Tpo"; exit 1; fi
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='src/org/apache/hadoop/io/nativeio/NativeIO.c' object='NativeIO.lo' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(LIBTOOL) --tag=CC --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o NativeIO.lo `test -f 'src/org/apache/hadoop/io/nativeio/NativeIO.c' || echo '$(srcdir)/'`src/org/apache/hadoop/io/nativeio/NativeIO.c
+
 mostlyclean-libtool:
 	-rm -f *.lo
 
diff --git a/src/native/config.h.in b/src/native/config.h.in
index 0fd9216..26f8b0f 100644
--- a/src/native/config.h.in
+++ b/src/native/config.h.in
@@ -3,6 +3,10 @@
 /* The 'actual' dynamic-library for '-lz' */
 #undef HADOOP_ZLIB_LIBRARY
 
+/* Define to 1 if you have the declaration of `strerror_r', and to 0 if you
+   don't. */
+#undef HAVE_DECL_STRERROR_R
+
 /* Define to 1 if you have the <dlfcn.h> header file. */
 #undef HAVE_DLFCN_H
 
@@ -39,6 +43,9 @@
 /* Define to 1 if you have the <stdlib.h> header file. */
 #undef HAVE_STDLIB_H
 
+/* Define to 1 if you have the `strerror_r' function. */
+#undef HAVE_STRERROR_R
+
 /* Define to 1 if you have the <strings.h> header file. */
 #undef HAVE_STRINGS_H
 
@@ -81,8 +88,17 @@
 /* Define to 1 if you have the ANSI C header files. */
 #undef STDC_HEADERS
 
+/* Define to 1 if strerror_r returns char *. */
+#undef STRERROR_R_CHAR_P
+
 /* Version number of package */
 #undef VERSION
 
+/* Number of bits in a file offset, on hosts where this is settable. */
+#undef _FILE_OFFSET_BITS
+
+/* Define for large files, on AIX-style hosts. */
+#undef _LARGE_FILES
+
 /* Define to empty if `const' does not conform to ANSI C. */
 #undef const
diff --git a/src/native/configure b/src/native/configure
index 96bedbb..c847761 100755
--- a/src/native/configure
+++ b/src/native/configure
@@ -464,7 +464,7 @@
 # include <unistd.h>
 #endif"
 
-ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA CYGPATH_W PACKAGE VERSION ACLOCAL AUTOCONF AUTOMAKE AUTOHEADER MAKEINFO install_sh STRIP ac_ct_STRIP INSTALL_STRIP_PROGRAM mkdir_p AWK SET_MAKE am__leading_dot AMTAR am__tar am__untar CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT DEPDIR am__include am__quote AMDEP_TRUE AMDEP_FALSE AMDEPBACKSLASH CCDEPMODE am__fastdepCC_TRUE am__fastdepCC_FALSE build build_cpu build_vendor build_os host host_cpu host_vendor host_os SED EGREP LN_S ECHO AR ac_ct_AR RANLIB ac_ct_RANLIB CPP CXX CXXFLAGS ac_ct_CXX CXXDEPMODE am__fastdepCXX_TRUE am__fastdepCXX_FALSE CXXCPP F77 FFLAGS ac_ct_F77 LIBTOOL JNI_LDFLAGS JNI_CPPFLAGS LIBOBJS LTLIBOBJS'
+ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA CYGPATH_W PACKAGE VERSION ACLOCAL AUTOCONF AUTOMAKE AUTOHEADER MAKEINFO install_sh STRIP ac_ct_STRIP INSTALL_STRIP_PROGRAM mkdir_p AWK SET_MAKE am__leading_dot AMTAR am__tar am__untar DEPDIR am__include am__quote AMDEP_TRUE AMDEP_FALSE AMDEPBACKSLASH CCDEPMODE am__fastdepCC_TRUE am__fastdepCC_FALSE build build_cpu build_vendor build_os host host_cpu host_vendor host_os SED EGREP LN_S ECHO AR ac_ct_AR RANLIB ac_ct_RANLIB CPP CXX CXXFLAGS ac_ct_CXX CXXDEPMODE am__fastdepCXX_TRUE am__fastdepCXX_FALSE CXXCPP F77 FFLAGS ac_ct_F77 LIBTOOL JNI_LDFLAGS JNI_CPPFLAGS LIBOBJS LTLIBOBJS'
 ac_subst_files=''
 
 # Initialize some variables set by options.
@@ -1024,6 +1024,7 @@
 Optional Features:
   --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
   --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
+  --disable-largefile     omit support for large files
   --disable-dependency-tracking  speeds up one-time build
   --enable-dependency-tracking   do not reject slow dependency extractors
   --enable-shared[=PKGS]
@@ -1523,421 +1524,6 @@
 
           ac_config_headers="$ac_config_headers config.h"
 
-
-am__api_version="1.9"
-# Find a good install program.  We prefer a C program (faster),
-# so one script is as good as another.  But avoid the broken or
-# incompatible versions:
-# SysV /etc/install, /usr/sbin/install
-# SunOS /usr/etc/install
-# IRIX /sbin/install
-# AIX /bin/install
-# AmigaOS /C/install, which installs bootblocks on floppy discs
-# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
-# AFS /usr/afsws/bin/install, which mishandles nonexistent args
-# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
-# OS/2's system install, which has a completely different semantic
-# ./install, which can be erroneously created by make from ./install.sh.
-echo "$as_me:$LINENO: checking for a BSD-compatible install" >&5
-echo $ECHO_N "checking for a BSD-compatible install... $ECHO_C" >&6
-if test -z "$INSTALL"; then
-if test "${ac_cv_path_install+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-  # Account for people who put trailing slashes in PATH elements.
-case $as_dir/ in
-  ./ | .// | /cC/* | \
-  /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
-  ?:\\/os2\\/install\\/* | ?:\\/OS2\\/INSTALL\\/* | \
-  /usr/ucb/* ) ;;
-  *)
-    # OSF1 and SCO ODT 3.0 have their own names for install.
-    # Don't use installbsd from OSF since it installs stuff as root
-    # by default.
-    for ac_prog in ginstall scoinst install; do
-      for ac_exec_ext in '' $ac_executable_extensions; do
-	if $as_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
-	  if test $ac_prog = install &&
-	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
-	    # AIX install.  It has an incompatible calling convention.
-	    :
-	  elif test $ac_prog = install &&
-	    grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
-	    # program-specific install script used by HP pwplus--don't use.
-	    :
-	  else
-	    ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
-	    break 3
-	  fi
-	fi
-      done
-    done
-    ;;
-esac
-done
-
-
-fi
-  if test "${ac_cv_path_install+set}" = set; then
-    INSTALL=$ac_cv_path_install
-  else
-    # As a last resort, use the slow shell script.  We don't cache a
-    # path for INSTALL within a source directory, because that will
-    # break other packages using the cache if that directory is
-    # removed, or if the path is relative.
-    INSTALL=$ac_install_sh
-  fi
-fi
-echo "$as_me:$LINENO: result: $INSTALL" >&5
-echo "${ECHO_T}$INSTALL" >&6
-
-# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
-# It thinks the first close brace ends the variable substitution.
-test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
-
-test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
-
-test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
-
-echo "$as_me:$LINENO: checking whether build environment is sane" >&5
-echo $ECHO_N "checking whether build environment is sane... $ECHO_C" >&6
-# Just in case
-sleep 1
-echo timestamp > conftest.file
-# Do `set' in a subshell so we don't clobber the current shell's
-# arguments.  Must try -L first in case configure is actually a
-# symlink; some systems play weird games with the mod time of symlinks
-# (eg FreeBSD returns the mod time of the symlink's containing
-# directory).
-if (
-   set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null`
-   if test "$*" = "X"; then
-      # -L didn't work.
-      set X `ls -t $srcdir/configure conftest.file`
-   fi
-   rm -f conftest.file
-   if test "$*" != "X $srcdir/configure conftest.file" \
-      && test "$*" != "X conftest.file $srcdir/configure"; then
-
-      # If neither matched, then we have a broken ls.  This can happen
-      # if, for instance, CONFIG_SHELL is bash and it inherits a
-      # broken ls alias from the environment.  This has actually
-      # happened.  Such a system could not be considered "sane".
-      { { echo "$as_me:$LINENO: error: ls -t appears to fail.  Make sure there is not a broken
-alias in your environment" >&5
-echo "$as_me: error: ls -t appears to fail.  Make sure there is not a broken
-alias in your environment" >&2;}
-   { (exit 1); exit 1; }; }
-   fi
-
-   test "$2" = conftest.file
-   )
-then
-   # Ok.
-   :
-else
-   { { echo "$as_me:$LINENO: error: newly created file is older than distributed files!
-Check your system clock" >&5
-echo "$as_me: error: newly created file is older than distributed files!
-Check your system clock" >&2;}
-   { (exit 1); exit 1; }; }
-fi
-echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6
-test "$program_prefix" != NONE &&
-  program_transform_name="s,^,$program_prefix,;$program_transform_name"
-# Use a double $ so make ignores it.
-test "$program_suffix" != NONE &&
-  program_transform_name="s,\$,$program_suffix,;$program_transform_name"
-# Double any \ or $.  echo might interpret backslashes.
-# By default was `s,x,x', remove it if useless.
-cat <<\_ACEOF >conftest.sed
-s/[\\$]/&&/g;s/;s,x,x,$//
-_ACEOF
-program_transform_name=`echo $program_transform_name | sed -f conftest.sed`
-rm conftest.sed
-
-# expand $ac_aux_dir to an absolute path
-am_aux_dir=`cd $ac_aux_dir && pwd`
-
-test x"${MISSING+set}" = xset || MISSING="\${SHELL} $am_aux_dir/missing"
-# Use eval to expand $SHELL
-if eval "$MISSING --run true"; then
-  am_missing_run="$MISSING --run "
-else
-  am_missing_run=
-  { echo "$as_me:$LINENO: WARNING: \`missing' script is too old or missing" >&5
-echo "$as_me: WARNING: \`missing' script is too old or missing" >&2;}
-fi
-
-if mkdir -p --version . >/dev/null 2>&1 && test ! -d ./--version; then
-  # We used to keeping the `.' as first argument, in order to
-  # allow $(mkdir_p) to be used without argument.  As in
-  #   $(mkdir_p) $(somedir)
-  # where $(somedir) is conditionally defined.  However this is wrong
-  # for two reasons:
-  #  1. if the package is installed by a user who cannot write `.'
-  #     make install will fail,
-  #  2. the above comment should most certainly read
-  #     $(mkdir_p) $(DESTDIR)$(somedir)
-  #     so it does not work when $(somedir) is undefined and
-  #     $(DESTDIR) is not.
-  #  To support the latter case, we have to write
-  #     test -z "$(somedir)" || $(mkdir_p) $(DESTDIR)$(somedir),
-  #  so the `.' trick is pointless.
-  mkdir_p='mkdir -p --'
-else
-  # On NextStep and OpenStep, the `mkdir' command does not
-  # recognize any option.  It will interpret all options as
-  # directories to create, and then abort because `.' already
-  # exists.
-  for d in ./-p ./--version;
-  do
-    test -d $d && rmdir $d
-  done
-  # $(mkinstalldirs) is defined by Automake if mkinstalldirs exists.
-  if test -f "$ac_aux_dir/mkinstalldirs"; then
-    mkdir_p='$(mkinstalldirs)'
-  else
-    mkdir_p='$(install_sh) -d'
-  fi
-fi
-
-for ac_prog in gawk mawk nawk awk
-do
-  # Extract the first word of "$ac_prog", so it can be a program name with args.
-set dummy $ac_prog; ac_word=$2
-echo "$as_me:$LINENO: checking for $ac_word" >&5
-echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
-if test "${ac_cv_prog_AWK+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  if test -n "$AWK"; then
-  ac_cv_prog_AWK="$AWK" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
-  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog_AWK="$ac_prog"
-    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-done
-
-fi
-fi
-AWK=$ac_cv_prog_AWK
-if test -n "$AWK"; then
-  echo "$as_me:$LINENO: result: $AWK" >&5
-echo "${ECHO_T}$AWK" >&6
-else
-  echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
-  test -n "$AWK" && break
-done
-
-echo "$as_me:$LINENO: checking whether ${MAKE-make} sets \$(MAKE)" >&5
-echo $ECHO_N "checking whether ${MAKE-make} sets \$(MAKE)... $ECHO_C" >&6
-set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y,:./+-,___p_,'`
-if eval "test \"\${ac_cv_prog_make_${ac_make}_set+set}\" = set"; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  cat >conftest.make <<\_ACEOF
-all:
-	@echo 'ac_maketemp="$(MAKE)"'
-_ACEOF
-# GNU make sometimes prints "make[1]: Entering...", which would confuse us.
-eval `${MAKE-make} -f conftest.make 2>/dev/null | grep temp=`
-if test -n "$ac_maketemp"; then
-  eval ac_cv_prog_make_${ac_make}_set=yes
-else
-  eval ac_cv_prog_make_${ac_make}_set=no
-fi
-rm -f conftest.make
-fi
-if eval "test \"`echo '$ac_cv_prog_make_'${ac_make}_set`\" = yes"; then
-  echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6
-  SET_MAKE=
-else
-  echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-  SET_MAKE="MAKE=${MAKE-make}"
-fi
-
-rm -rf .tst 2>/dev/null
-mkdir .tst 2>/dev/null
-if test -d .tst; then
-  am__leading_dot=.
-else
-  am__leading_dot=_
-fi
-rmdir .tst 2>/dev/null
-
-# test to see if srcdir already configured
-if test "`cd $srcdir && pwd`" != "`pwd`" &&
-   test -f $srcdir/config.status; then
-  { { echo "$as_me:$LINENO: error: source directory already configured; run \"make distclean\" there first" >&5
-echo "$as_me: error: source directory already configured; run \"make distclean\" there first" >&2;}
-   { (exit 1); exit 1; }; }
-fi
-
-# test whether we have cygpath
-if test -z "$CYGPATH_W"; then
-  if (cygpath --version) >/dev/null 2>/dev/null; then
-    CYGPATH_W='cygpath -w'
-  else
-    CYGPATH_W=echo
-  fi
-fi
-
-
-# Define the identity of the package.
- PACKAGE=hadoop
- VERSION=1.0.0
-
-
-cat >>confdefs.h <<_ACEOF
-#define PACKAGE "$PACKAGE"
-_ACEOF
-
-
-cat >>confdefs.h <<_ACEOF
-#define VERSION "$VERSION"
-_ACEOF
-
-# Some tools Automake needs.
-
-ACLOCAL=${ACLOCAL-"${am_missing_run}aclocal-${am__api_version}"}
-
-
-AUTOCONF=${AUTOCONF-"${am_missing_run}autoconf"}
-
-
-AUTOMAKE=${AUTOMAKE-"${am_missing_run}automake-${am__api_version}"}
-
-
-AUTOHEADER=${AUTOHEADER-"${am_missing_run}autoheader"}
-
-
-MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
-
-install_sh=${install_sh-"$am_aux_dir/install-sh"}
-
-# Installed binaries are usually stripped using `strip' when the user
-# run `make install-strip'.  However `strip' might not be the right
-# tool to use in cross-compilation environments, therefore Automake
-# will honor the `STRIP' environment variable to overrule this program.
-if test "$cross_compiling" != no; then
-  if test -n "$ac_tool_prefix"; then
-  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
-set dummy ${ac_tool_prefix}strip; ac_word=$2
-echo "$as_me:$LINENO: checking for $ac_word" >&5
-echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
-if test "${ac_cv_prog_STRIP+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  if test -n "$STRIP"; then
-  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
-  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
-    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-done
-
-fi
-fi
-STRIP=$ac_cv_prog_STRIP
-if test -n "$STRIP"; then
-  echo "$as_me:$LINENO: result: $STRIP" >&5
-echo "${ECHO_T}$STRIP" >&6
-else
-  echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
-fi
-if test -z "$ac_cv_prog_STRIP"; then
-  ac_ct_STRIP=$STRIP
-  # Extract the first word of "strip", so it can be a program name with args.
-set dummy strip; ac_word=$2
-echo "$as_me:$LINENO: checking for $ac_word" >&5
-echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
-if test "${ac_cv_prog_ac_ct_STRIP+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  if test -n "$ac_ct_STRIP"; then
-  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
-  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog_ac_ct_STRIP="strip"
-    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-done
-
-  test -z "$ac_cv_prog_ac_ct_STRIP" && ac_cv_prog_ac_ct_STRIP=":"
-fi
-fi
-ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
-if test -n "$ac_ct_STRIP"; then
-  echo "$as_me:$LINENO: result: $ac_ct_STRIP" >&5
-echo "${ECHO_T}$ac_ct_STRIP" >&6
-else
-  echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
-  STRIP=$ac_ct_STRIP
-else
-  STRIP="$ac_cv_prog_STRIP"
-fi
-
-fi
-INSTALL_STRIP_PROGRAM="\${SHELL} \$(install_sh) -c -s"
-
-# We need awk for the "check" target.  The system "awk" is bad on
-# some platforms.
-# Always define AMTAR for backward compatibility.
-
-AMTAR=${AMTAR-"${am_missing_run}tar"}
-
-am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'
-
-
-
-
-
-
-# Checks for programs.
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -2867,6 +2453,635 @@
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+# Check whether --enable-largefile or --disable-largefile was given.
+if test "${enable_largefile+set}" = set; then
+  enableval="$enable_largefile"
+
+fi;
+if test "$enable_largefile" != no; then
+
+  echo "$as_me:$LINENO: checking for special C compiler options needed for large files" >&5
+echo $ECHO_N "checking for special C compiler options needed for large files... $ECHO_C" >&6
+if test "${ac_cv_sys_largefile_CC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_cv_sys_largefile_CC=no
+     if test "$GCC" != yes; then
+       ac_save_CC=$CC
+       while :; do
+     	 # IRIX 6.2 and later do not support large files by default,
+     	 # so use the C compiler's -n32 option if that helps.
+	 cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+    We can't simply define LARGE_OFF_T to be 9223372036854775807,
+    since some C++ compilers masquerading as C compilers
+    incorrectly reject 9223372036854775807.  */
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+		       && LARGE_OFF_T % 2147483647 == 1)
+		      ? 1 : -1];
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+     	 rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext
+     	 CC="$CC -n32"
+     	 rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_sys_largefile_CC=' -n32'; break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext
+	 break
+       done
+       CC=$ac_save_CC
+       rm -f conftest.$ac_ext
+    fi
+fi
+echo "$as_me:$LINENO: result: $ac_cv_sys_largefile_CC" >&5
+echo "${ECHO_T}$ac_cv_sys_largefile_CC" >&6
+  if test "$ac_cv_sys_largefile_CC" != no; then
+    CC=$CC$ac_cv_sys_largefile_CC
+  fi
+
+  echo "$as_me:$LINENO: checking for _FILE_OFFSET_BITS value needed for large files" >&5
+echo $ECHO_N "checking for _FILE_OFFSET_BITS value needed for large files... $ECHO_C" >&6
+if test "${ac_cv_sys_file_offset_bits+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  while :; do
+  ac_cv_sys_file_offset_bits=no
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+    We can't simply define LARGE_OFF_T to be 9223372036854775807,
+    since some C++ compilers masquerading as C compilers
+    incorrectly reject 9223372036854775807.  */
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+		       && LARGE_OFF_T % 2147483647 == 1)
+		      ? 1 : -1];
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#define _FILE_OFFSET_BITS 64
+#include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+    We can't simply define LARGE_OFF_T to be 9223372036854775807,
+    since some C++ compilers masquerading as C compilers
+    incorrectly reject 9223372036854775807.  */
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+		       && LARGE_OFF_T % 2147483647 == 1)
+		      ? 1 : -1];
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_sys_file_offset_bits=64; break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+  break
+done
+fi
+echo "$as_me:$LINENO: result: $ac_cv_sys_file_offset_bits" >&5
+echo "${ECHO_T}$ac_cv_sys_file_offset_bits" >&6
+if test "$ac_cv_sys_file_offset_bits" != no; then
+
+cat >>confdefs.h <<_ACEOF
+#define _FILE_OFFSET_BITS $ac_cv_sys_file_offset_bits
+_ACEOF
+
+fi
+rm -f conftest*
+  echo "$as_me:$LINENO: checking for _LARGE_FILES value needed for large files" >&5
+echo $ECHO_N "checking for _LARGE_FILES value needed for large files... $ECHO_C" >&6
+if test "${ac_cv_sys_large_files+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  while :; do
+  ac_cv_sys_large_files=no
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+    We can't simply define LARGE_OFF_T to be 9223372036854775807,
+    since some C++ compilers masquerading as C compilers
+    incorrectly reject 9223372036854775807.  */
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+		       && LARGE_OFF_T % 2147483647 == 1)
+		      ? 1 : -1];
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#define _LARGE_FILES 1
+#include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+    We can't simply define LARGE_OFF_T to be 9223372036854775807,
+    since some C++ compilers masquerading as C compilers
+    incorrectly reject 9223372036854775807.  */
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+  int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+		       && LARGE_OFF_T % 2147483647 == 1)
+		      ? 1 : -1];
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_sys_large_files=1; break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+  break
+done
+fi
+echo "$as_me:$LINENO: result: $ac_cv_sys_large_files" >&5
+echo "${ECHO_T}$ac_cv_sys_large_files" >&6
+if test "$ac_cv_sys_large_files" != no; then
+
+cat >>confdefs.h <<_ACEOF
+#define _LARGE_FILES $ac_cv_sys_large_files
+_ACEOF
+
+fi
+rm -f conftest*
+fi
+
+
+am__api_version="1.9"
+# Find a good install program.  We prefer a C program (faster),
+# so one script is as good as another.  But avoid the broken or
+# incompatible versions:
+# SysV /etc/install, /usr/sbin/install
+# SunOS /usr/etc/install
+# IRIX /sbin/install
+# AIX /bin/install
+# AmigaOS /C/install, which installs bootblocks on floppy discs
+# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
+# AFS /usr/afsws/bin/install, which mishandles nonexistent args
+# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
+# OS/2's system install, which has a completely different semantic
+# ./install, which can be erroneously created by make from ./install.sh.
+echo "$as_me:$LINENO: checking for a BSD-compatible install" >&5
+echo $ECHO_N "checking for a BSD-compatible install... $ECHO_C" >&6
+if test -z "$INSTALL"; then
+if test "${ac_cv_path_install+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  # Account for people who put trailing slashes in PATH elements.
+case $as_dir/ in
+  ./ | .// | /cC/* | \
+  /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
+  ?:\\/os2\\/install\\/* | ?:\\/OS2\\/INSTALL\\/* | \
+  /usr/ucb/* ) ;;
+  *)
+    # OSF1 and SCO ODT 3.0 have their own names for install.
+    # Don't use installbsd from OSF since it installs stuff as root
+    # by default.
+    for ac_prog in ginstall scoinst install; do
+      for ac_exec_ext in '' $ac_executable_extensions; do
+	if $as_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
+	  if test $ac_prog = install &&
+	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    # AIX install.  It has an incompatible calling convention.
+	    :
+	  elif test $ac_prog = install &&
+	    grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    # program-specific install script used by HP pwplus--don't use.
+	    :
+	  else
+	    ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
+	    break 3
+	  fi
+	fi
+      done
+    done
+    ;;
+esac
+done
+
+
+fi
+  if test "${ac_cv_path_install+set}" = set; then
+    INSTALL=$ac_cv_path_install
+  else
+    # As a last resort, use the slow shell script.  We don't cache a
+    # path for INSTALL within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the path is relative.
+    INSTALL=$ac_install_sh
+  fi
+fi
+echo "$as_me:$LINENO: result: $INSTALL" >&5
+echo "${ECHO_T}$INSTALL" >&6
+
+# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
+# It thinks the first close brace ends the variable substitution.
+test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
+
+test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
+
+test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
+
+echo "$as_me:$LINENO: checking whether build environment is sane" >&5
+echo $ECHO_N "checking whether build environment is sane... $ECHO_C" >&6
+# Just in case
+sleep 1
+echo timestamp > conftest.file
+# Do `set' in a subshell so we don't clobber the current shell's
+# arguments.  Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+   set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null`
+   if test "$*" = "X"; then
+      # -L didn't work.
+      set X `ls -t $srcdir/configure conftest.file`
+   fi
+   rm -f conftest.file
+   if test "$*" != "X $srcdir/configure conftest.file" \
+      && test "$*" != "X conftest.file $srcdir/configure"; then
+
+      # If neither matched, then we have a broken ls.  This can happen
+      # if, for instance, CONFIG_SHELL is bash and it inherits a
+      # broken ls alias from the environment.  This has actually
+      # happened.  Such a system could not be considered "sane".
+      { { echo "$as_me:$LINENO: error: ls -t appears to fail.  Make sure there is not a broken
+alias in your environment" >&5
+echo "$as_me: error: ls -t appears to fail.  Make sure there is not a broken
+alias in your environment" >&2;}
+   { (exit 1); exit 1; }; }
+   fi
+
+   test "$2" = conftest.file
+   )
+then
+   # Ok.
+   :
+else
+   { { echo "$as_me:$LINENO: error: newly created file is older than distributed files!
+Check your system clock" >&5
+echo "$as_me: error: newly created file is older than distributed files!
+Check your system clock" >&2;}
+   { (exit 1); exit 1; }; }
+fi
+echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+test "$program_prefix" != NONE &&
+  program_transform_name="s,^,$program_prefix,;$program_transform_name"
+# Use a double $ so make ignores it.
+test "$program_suffix" != NONE &&
+  program_transform_name="s,\$,$program_suffix,;$program_transform_name"
+# Double any \ or $.  echo might interpret backslashes.
+# By default was `s,x,x', remove it if useless.
+cat <<\_ACEOF >conftest.sed
+s/[\\$]/&&/g;s/;s,x,x,$//
+_ACEOF
+program_transform_name=`echo $program_transform_name | sed -f conftest.sed`
+rm conftest.sed
+
+# expand $ac_aux_dir to an absolute path
+am_aux_dir=`cd $ac_aux_dir && pwd`
+
+test x"${MISSING+set}" = xset || MISSING="\${SHELL} $am_aux_dir/missing"
+# Use eval to expand $SHELL
+if eval "$MISSING --run true"; then
+  am_missing_run="$MISSING --run "
+else
+  am_missing_run=
+  { echo "$as_me:$LINENO: WARNING: \`missing' script is too old or missing" >&5
+echo "$as_me: WARNING: \`missing' script is too old or missing" >&2;}
+fi
+
+if mkdir -p --version . >/dev/null 2>&1 && test ! -d ./--version; then
+  # We used to keeping the `.' as first argument, in order to
+  # allow $(mkdir_p) to be used without argument.  As in
+  #   $(mkdir_p) $(somedir)
+  # where $(somedir) is conditionally defined.  However this is wrong
+  # for two reasons:
+  #  1. if the package is installed by a user who cannot write `.'
+  #     make install will fail,
+  #  2. the above comment should most certainly read
+  #     $(mkdir_p) $(DESTDIR)$(somedir)
+  #     so it does not work when $(somedir) is undefined and
+  #     $(DESTDIR) is not.
+  #  To support the latter case, we have to write
+  #     test -z "$(somedir)" || $(mkdir_p) $(DESTDIR)$(somedir),
+  #  so the `.' trick is pointless.
+  mkdir_p='mkdir -p --'
+else
+  # On NextStep and OpenStep, the `mkdir' command does not
+  # recognize any option.  It will interpret all options as
+  # directories to create, and then abort because `.' already
+  # exists.
+  for d in ./-p ./--version;
+  do
+    test -d $d && rmdir $d
+  done
+  # $(mkinstalldirs) is defined by Automake if mkinstalldirs exists.
+  if test -f "$ac_aux_dir/mkinstalldirs"; then
+    mkdir_p='$(mkinstalldirs)'
+  else
+    mkdir_p='$(install_sh) -d'
+  fi
+fi
+
+for ac_prog in gawk mawk nawk awk
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_AWK+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$AWK"; then
+  ac_cv_prog_AWK="$AWK" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AWK="$ac_prog"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+AWK=$ac_cv_prog_AWK
+if test -n "$AWK"; then
+  echo "$as_me:$LINENO: result: $AWK" >&5
+echo "${ECHO_T}$AWK" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+  test -n "$AWK" && break
+done
+
+echo "$as_me:$LINENO: checking whether ${MAKE-make} sets \$(MAKE)" >&5
+echo $ECHO_N "checking whether ${MAKE-make} sets \$(MAKE)... $ECHO_C" >&6
+set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y,:./+-,___p_,'`
+if eval "test \"\${ac_cv_prog_make_${ac_make}_set+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.make <<\_ACEOF
+all:
+	@echo 'ac_maketemp="$(MAKE)"'
+_ACEOF
+# GNU make sometimes prints "make[1]: Entering...", which would confuse us.
+eval `${MAKE-make} -f conftest.make 2>/dev/null | grep temp=`
+if test -n "$ac_maketemp"; then
+  eval ac_cv_prog_make_${ac_make}_set=yes
+else
+  eval ac_cv_prog_make_${ac_make}_set=no
+fi
+rm -f conftest.make
+fi
+if eval "test \"`echo '$ac_cv_prog_make_'${ac_make}_set`\" = yes"; then
+  echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+  SET_MAKE=
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+  SET_MAKE="MAKE=${MAKE-make}"
+fi
+
+rm -rf .tst 2>/dev/null
+mkdir .tst 2>/dev/null
+if test -d .tst; then
+  am__leading_dot=.
+else
+  am__leading_dot=_
+fi
+rmdir .tst 2>/dev/null
+
 DEPDIR="${am__leading_dot}deps"
 
           ac_config_commands="$ac_config_commands depfiles"
@@ -2932,6 +3147,154 @@
 
 
 
+# test to see if srcdir already configured
+if test "`cd $srcdir && pwd`" != "`pwd`" &&
+   test -f $srcdir/config.status; then
+  { { echo "$as_me:$LINENO: error: source directory already configured; run \"make distclean\" there first" >&5
+echo "$as_me: error: source directory already configured; run \"make distclean\" there first" >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+# test whether we have cygpath
+if test -z "$CYGPATH_W"; then
+  if (cygpath --version) >/dev/null 2>/dev/null; then
+    CYGPATH_W='cygpath -w'
+  else
+    CYGPATH_W=echo
+  fi
+fi
+
+
+# Define the identity of the package.
+ PACKAGE=hadoop
+ VERSION=1.0.0
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE "$PACKAGE"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define VERSION "$VERSION"
+_ACEOF
+
+# Some tools Automake needs.
+
+ACLOCAL=${ACLOCAL-"${am_missing_run}aclocal-${am__api_version}"}
+
+
+AUTOCONF=${AUTOCONF-"${am_missing_run}autoconf"}
+
+
+AUTOMAKE=${AUTOMAKE-"${am_missing_run}automake-${am__api_version}"}
+
+
+AUTOHEADER=${AUTOHEADER-"${am_missing_run}autoheader"}
+
+
+MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
+
+install_sh=${install_sh-"$am_aux_dir/install-sh"}
+
+# Installed binaries are usually stripped using `strip' when the user
+# run `make install-strip'.  However `strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the `STRIP' environment variable to overrule this program.
+if test "$cross_compiling" != no; then
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
+set dummy ${ac_tool_prefix}strip; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_STRIP+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$STRIP"; then
+  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+STRIP=$ac_cv_prog_STRIP
+if test -n "$STRIP"; then
+  echo "$as_me:$LINENO: result: $STRIP" >&5
+echo "${ECHO_T}$STRIP" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$ac_cv_prog_STRIP"; then
+  ac_ct_STRIP=$STRIP
+  # Extract the first word of "strip", so it can be a program name with args.
+set dummy strip; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_STRIP+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$ac_ct_STRIP"; then
+  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_STRIP="strip"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+  test -z "$ac_cv_prog_ac_ct_STRIP" && ac_cv_prog_ac_ct_STRIP=":"
+fi
+fi
+ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
+if test -n "$ac_ct_STRIP"; then
+  echo "$as_me:$LINENO: result: $ac_ct_STRIP" >&5
+echo "${ECHO_T}$ac_ct_STRIP" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+  STRIP=$ac_ct_STRIP
+else
+  STRIP="$ac_cv_prog_STRIP"
+fi
+
+fi
+INSTALL_STRIP_PROGRAM="\${SHELL} \$(install_sh) -c -s"
+
+# We need awk for the "check" target.  The system "awk" is bad on
+# some platforms.
+# Always define AMTAR for backward compatibility.
+
+AMTAR=${AMTAR-"${am_missing_run}tar"}
+
+am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'
+
+
+
 
 depcc="$CC"   am_compiler_list=
 
@@ -3042,6 +3405,738 @@
 fi
 
 
+
+
+# Checks for programs.
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}gcc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}gcc"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+  ac_ct_CC=$CC
+  # Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="gcc"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+echo "${ECHO_T}$ac_ct_CC" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+  CC=$ac_ct_CC
+else
+  CC="$ac_cv_prog_CC"
+fi
+
+if test -z "$CC"; then
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}cc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}cc"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+  ac_ct_CC=$CC
+  # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="cc"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+echo "${ECHO_T}$ac_ct_CC" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+  CC=$ac_ct_CC
+else
+  CC="$ac_cv_prog_CC"
+fi
+
+fi
+if test -z "$CC"; then
+  # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  ac_prog_rejected=no
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+       ac_prog_rejected=yes
+       continue
+     fi
+    ac_cv_prog_CC="cc"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+if test $ac_prog_rejected = yes; then
+  # We found a bogon in the path, so make sure we never use it.
+  set dummy $ac_cv_prog_CC
+  shift
+  if test $# != 0; then
+    # We chose a different compiler from the bogus one.
+    # However, it has the same basename, so the bogon will be chosen
+    # first if we set CC to just the basename; use the full file name.
+    shift
+    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
+  fi
+fi
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$CC"; then
+  if test -n "$ac_tool_prefix"; then
+  for ac_prog in cl
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+    test -n "$CC" && break
+  done
+fi
+if test -z "$CC"; then
+  ac_ct_CC=$CC
+  for ac_prog in cl
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="$ac_prog"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+echo "${ECHO_T}$ac_ct_CC" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+  test -n "$ac_ct_CC" && break
+done
+
+  CC=$ac_ct_CC
+fi
+
+fi
+
+
+test -z "$CC" && { { echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH
+See \`config.log' for more details." >&5
+echo "$as_me: error: no acceptable C compiler found in \$PATH
+See \`config.log' for more details." >&2;}
+   { (exit 1); exit 1; }; }
+
+# Provide some information about the compiler.
+echo "$as_me:$LINENO:" \
+     "checking for C compiler version" >&5
+ac_compiler=`set X $ac_compile; echo $2`
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
+  (eval $ac_compiler --version </dev/null >&5) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler -v </dev/null >&5\"") >&5
+  (eval $ac_compiler -v </dev/null >&5) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler -V </dev/null >&5\"") >&5
+  (eval $ac_compiler -V </dev/null >&5) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }
+
+echo "$as_me:$LINENO: checking whether we are using the GNU C compiler" >&5
+echo $ECHO_N "checking whether we are using the GNU C compiler... $ECHO_C" >&6
+if test "${ac_cv_c_compiler_gnu+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_compiler_gnu=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_compiler_gnu=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_c_compiler_gnu=$ac_compiler_gnu
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_c_compiler_gnu" >&5
+echo "${ECHO_T}$ac_cv_c_compiler_gnu" >&6
+GCC=`test $ac_compiler_gnu = yes && echo yes`
+ac_test_CFLAGS=${CFLAGS+set}
+ac_save_CFLAGS=$CFLAGS
+CFLAGS="-g"
+echo "$as_me:$LINENO: checking whether $CC accepts -g" >&5
+echo $ECHO_N "checking whether $CC accepts -g... $ECHO_C" >&6
+if test "${ac_cv_prog_cc_g+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_prog_cc_g=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_prog_cc_g=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5
+echo "${ECHO_T}$ac_cv_prog_cc_g" >&6
+if test "$ac_test_CFLAGS" = set; then
+  CFLAGS=$ac_save_CFLAGS
+elif test $ac_cv_prog_cc_g = yes; then
+  if test "$GCC" = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-g"
+  fi
+else
+  if test "$GCC" = yes; then
+    CFLAGS="-O2"
+  else
+    CFLAGS=
+  fi
+fi
+echo "$as_me:$LINENO: checking for $CC option to accept ANSI C" >&5
+echo $ECHO_N "checking for $CC option to accept ANSI C... $ECHO_C" >&6
+if test "${ac_cv_prog_cc_stdc+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_cv_prog_cc_stdc=no
+ac_save_CC=$CC
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <stdarg.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+     char **p;
+     int i;
+{
+  return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+  char *s;
+  va_list v;
+  va_start (v,p);
+  s = g (p, va_arg (v,int));
+  va_end (v);
+  return s;
+}
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
+   function prototypes and stuff, but not '\xHH' hex character constants.
+   These don't provoke an error unfortunately, instead are silently treated
+   as 'x'.  The following induces an error, until -std1 is added to get
+   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
+   array size at least.  It's necessary to write '\x00'==0 to get something
+   that's true only with -std1.  */
+int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+int
+main ()
+{
+return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
+  ;
+  return 0;
+}
+_ACEOF
+# Don't try gcc -ansi; that turns off useful extensions and
+# breaks some systems' header files.
+# AIX			-qlanglvl=ansi
+# Ultrix and OSF/1	-std1
+# HP-UX 10.20 and later	-Ae
+# HP-UX older versions	-Aa -D_HPUX_SOURCE
+# SVR4			-Xc -D__EXTENSIONS__
+for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+  CC="$ac_save_CC $ac_arg"
+  rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_prog_cc_stdc=$ac_arg
+break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext
+done
+rm -f conftest.$ac_ext conftest.$ac_objext
+CC=$ac_save_CC
+
+fi
+
+case "x$ac_cv_prog_cc_stdc" in
+  x|xno)
+    echo "$as_me:$LINENO: result: none needed" >&5
+echo "${ECHO_T}none needed" >&6 ;;
+  *)
+    echo "$as_me:$LINENO: result: $ac_cv_prog_cc_stdc" >&5
+echo "${ECHO_T}$ac_cv_prog_cc_stdc" >&6
+    CC="$CC $ac_cv_prog_cc_stdc" ;;
+esac
+
+# Some people use a C++ compiler to compile C.  Since we use `exit',
+# in C++ we need to declare it.  In case someone uses the same compiler
+# for both compiling C and C++ we need to have the C++ compiler decide
+# the declaration of exit, since it's the most demanding environment.
+cat >conftest.$ac_ext <<_ACEOF
+#ifndef __cplusplus
+  choke me
+#endif
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  for ac_declaration in \
+   '' \
+   'extern "C" void std::exit (int) throw (); using std::exit;' \
+   'extern "C" void std::exit (int); using std::exit;' \
+   'extern "C" void exit (int) throw ();' \
+   'extern "C" void exit (int);' \
+   'void exit (int);'
+do
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_declaration
+#include <stdlib.h>
+int
+main ()
+{
+exit (42);
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  :
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+continue
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_declaration
+int
+main ()
+{
+exit (42);
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  break
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+done
+rm -f conftest*
+if test -n "$ac_declaration"; then
+  echo '#ifdef __cplusplus' >>confdefs.h
+  echo $ac_declaration      >>confdefs.h
+  echo '#endif'             >>confdefs.h
+fi
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
 # Check whether --enable-shared or --disable-shared was given.
 if test "${enable_shared+set}" = set; then
   enableval="$enable_shared"
@@ -3632,7 +4727,6 @@
 # Allow CC to be a program name with arguments.
 compiler=$CC
 
-
 # Check whether --enable-libtool-lock or --disable-libtool-lock was given.
 if test "${enable_libtool_lock+set}" = set; then
   enableval="$enable_libtool_lock"
@@ -3664,7 +4758,7 @@
   ;;
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 3667 "configure"' > conftest.$ac_ext
+  echo '#line 4761 "configure"' > conftest.$ac_ext
   if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -5263,7 +6357,7 @@
 
 
 # Provide some information about the compiler.
-echo "$as_me:5266:" \
+echo "$as_me:6360:" \
      "checking for Fortran 77 compiler version" >&5
 ac_compiler=`set X $ac_compile; echo $2`
 { (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
@@ -6326,11 +7420,11 @@
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:6329: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7423: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:6333: \$? = $ac_status" >&5
+   echo "$as_me:7427: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -6594,11 +7688,11 @@
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:6597: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7691: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:6601: \$? = $ac_status" >&5
+   echo "$as_me:7695: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -6698,11 +7792,11 @@
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:6701: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7795: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:6705: \$? = $ac_status" >&5
+   echo "$as_me:7799: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -8167,7 +9261,7 @@
   libsuff=
   case "$host_cpu" in
   x86_64*|s390x*|powerpc64*)
-    echo '#line 8170 "configure"' > conftest.$ac_ext
+    echo '#line 9264 "configure"' > conftest.$ac_ext
     if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -9064,7 +10158,7 @@
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 9067 "configure"
+#line 10161 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -9164,7 +10258,7 @@
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 9167 "configure"
+#line 10261 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11507,11 +12601,11 @@
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:11510: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:12604: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:11514: \$? = $ac_status" >&5
+   echo "$as_me:12608: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -11611,11 +12705,11 @@
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:11614: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:12708: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:11618: \$? = $ac_status" >&5
+   echo "$as_me:12712: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -12147,7 +13241,7 @@
   libsuff=
   case "$host_cpu" in
   x86_64*|s390x*|powerpc64*)
-    echo '#line 12150 "configure"' > conftest.$ac_ext
+    echo '#line 13244 "configure"' > conftest.$ac_ext
     if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -13205,11 +14299,11 @@
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:13208: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:14302: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:13212: \$? = $ac_status" >&5
+   echo "$as_me:14306: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -13309,11 +14403,11 @@
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:13312: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:14406: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:13316: \$? = $ac_status" >&5
+   echo "$as_me:14410: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -14758,7 +15852,7 @@
   libsuff=
   case "$host_cpu" in
   x86_64*|s390x*|powerpc64*)
-    echo '#line 14761 "configure"' > conftest.$ac_ext
+    echo '#line 15855 "configure"' > conftest.$ac_ext
     if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -15536,11 +16630,11 @@
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:15539: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:16633: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:15543: \$? = $ac_status" >&5
+   echo "$as_me:16637: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -15804,11 +16898,11 @@
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:15807: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:16901: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:15811: \$? = $ac_status" >&5
+   echo "$as_me:16905: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -15908,11 +17002,11 @@
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:15911: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:17005: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:15915: \$? = $ac_status" >&5
+   echo "$as_me:17009: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -17377,7 +18471,7 @@
   libsuff=
   case "$host_cpu" in
   x86_64*|s390x*|powerpc64*)
-    echo '#line 17380 "configure"' > conftest.$ac_ext
+    echo '#line 18474 "configure"' > conftest.$ac_ext
     if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -19413,9 +20507,11 @@
       ac_cv_libname_z="`objdump -p conftest | grep NEEDED | grep z | sed 's/\W*NEEDED\W*\(.*\)\W*$/\"\1\"/'`"
     elif test ! -z "`which ldd | grep -v 'no ldd'`"; then
       ac_cv_libname_z="`ldd conftest | grep z | sed 's/^[^A-Za-z0-9]*\([A-Za-z0-9\.]*\)[^A-Za-z0-9]*=>.*$/\"\1\"/'`"
+    elif test ! -z "`which otool | grep -v 'no otool'`"; then
+      ac_cv_libname_z=\"`otool -L conftest | grep z | sed -e 's/^	 *//' -e 's/ .*//' -e 's/.*\/\(.*\)$/\1/'`\";
     else
-      { { echo "$as_me:$LINENO: error: Can't find either 'objdump' or 'ldd' to compute the dynamic library for '-lz'" >&5
-echo "$as_me: error: Can't find either 'objdump' or 'ldd' to compute the dynamic library for '-lz'" >&2;}
+      { { echo "$as_me:$LINENO: error: Can't find either 'objdump' or 'ldd' or 'otool' to compute the dynamic library for '-lz'" >&5
+echo "$as_me: error: Can't find either 'objdump' or 'ldd' or 'otool' to compute the dynamic library for '-lz'" >&2;}
    { (exit 1); exit 1; }; }
     fi
   else
@@ -19813,6 +20909,299 @@
 done
 
 
+# Check for nonstandard STRERROR_R
+echo "$as_me:$LINENO: checking whether strerror_r is declared" >&5
+echo $ECHO_N "checking whether strerror_r is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_strerror_r+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+int
+main ()
+{
+#ifndef strerror_r
+  char *p = (char *) strerror_r;
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_have_decl_strerror_r=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_strerror_r=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_strerror_r" >&5
+echo "${ECHO_T}$ac_cv_have_decl_strerror_r" >&6
+if test $ac_cv_have_decl_strerror_r = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRERROR_R 1
+_ACEOF
+
+
+else
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRERROR_R 0
+_ACEOF
+
+
+fi
+
+
+
+for ac_func in strerror_r
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $ac_func (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != $ac_func;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  eval "$as_ac_var=yes"
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_var=no"
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+echo "$as_me:$LINENO: checking whether strerror_r returns char *" >&5
+echo $ECHO_N "checking whether strerror_r returns char *... $ECHO_C" >&6
+if test "${ac_cv_func_strerror_r_char_p+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+    ac_cv_func_strerror_r_char_p=no
+    if test $ac_cv_have_decl_strerror_r = yes; then
+      cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+int
+main ()
+{
+
+	  char buf[100];
+	  char x = *strerror_r (0, buf, sizeof buf);
+	  char *p = strerror_r (0, buf, sizeof buf);
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_func_strerror_r_char_p=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+    else
+      # strerror_r is not declared.  Choose between
+      # systems that have relatively inaccessible declarations for the
+      # function.  BeOS and DEC UNIX 4.0 fall in this category, but the
+      # former has a strerror_r that returns char*, while the latter
+      # has a strerror_r that returns `int'.
+      # This test should segfault on the DEC system.
+      if test "$cross_compiling" = yes; then
+  :
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+	extern char *strerror_r ();
+int
+main ()
+{
+char buf[100];
+	  char x = *strerror_r (0, buf, sizeof buf);
+	  exit (!isalpha (x));
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_func_strerror_r_char_p=yes
+else
+  echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+fi
+rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+    fi
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_strerror_r_char_p" >&5
+echo "${ECHO_T}$ac_cv_func_strerror_r_char_p" >&6
+if test $ac_cv_func_strerror_r_char_p = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define STRERROR_R_CHAR_P 1
+_ACEOF
+
+fi
+
+
           ac_config_files="$ac_config_files Makefile"
 
 cat >confcache <<\_ACEOF
@@ -20459,6 +21848,13 @@
 s,@ECHO_N@,$ECHO_N,;t t
 s,@ECHO_T@,$ECHO_T,;t t
 s,@LIBS@,$LIBS,;t t
+s,@CC@,$CC,;t t
+s,@CFLAGS@,$CFLAGS,;t t
+s,@LDFLAGS@,$LDFLAGS,;t t
+s,@CPPFLAGS@,$CPPFLAGS,;t t
+s,@ac_ct_CC@,$ac_ct_CC,;t t
+s,@EXEEXT@,$EXEEXT,;t t
+s,@OBJEXT@,$OBJEXT,;t t
 s,@INSTALL_PROGRAM@,$INSTALL_PROGRAM,;t t
 s,@INSTALL_SCRIPT@,$INSTALL_SCRIPT,;t t
 s,@INSTALL_DATA@,$INSTALL_DATA,;t t
@@ -20481,13 +21877,6 @@
 s,@AMTAR@,$AMTAR,;t t
 s,@am__tar@,$am__tar,;t t
 s,@am__untar@,$am__untar,;t t
-s,@CC@,$CC,;t t
-s,@CFLAGS@,$CFLAGS,;t t
-s,@LDFLAGS@,$LDFLAGS,;t t
-s,@CPPFLAGS@,$CPPFLAGS,;t t
-s,@ac_ct_CC@,$ac_ct_CC,;t t
-s,@EXEEXT@,$EXEEXT,;t t
-s,@OBJEXT@,$OBJEXT,;t t
 s,@DEPDIR@,$DEPDIR,;t t
 s,@am__include@,$am__include,;t t
 s,@am__quote@,$am__quote,;t t
diff --git a/src/native/configure.ac b/src/native/configure.ac
index df11833..94c8609 100644
--- a/src/native/configure.ac
+++ b/src/native/configure.ac
@@ -38,6 +38,7 @@
 AC_CONFIG_SRCDIR([src/org_apache_hadoop.h])
 AC_CONFIG_AUX_DIR(config)
 AC_CONFIG_HEADER([config.h])
+AC_SYS_LARGEFILE
 
 AM_INIT_AUTOMAKE(hadoop,1.0.0)
 
@@ -95,6 +96,9 @@
 # Checks for library functions.
 AC_CHECK_FUNCS([memset])
 
+# Check for nonstandard STRERROR_R
+AC_FUNC_STRERROR_R
+
 AC_CONFIG_FILES([Makefile])
 AC_OUTPUT
 
diff --git a/src/native/lib/Makefile.am b/src/native/lib/Makefile.am
index 5d51cc5..f33df0e 100644
--- a/src/native/lib/Makefile.am
+++ b/src/native/lib/Makefile.am
@@ -36,7 +36,7 @@
 
 lib_LTLIBRARIES = libhadoop.la
 libhadoop_la_SOURCES = 
-libhadoop_la_LDFLAGS = -version-info 1:0:0
+libhadoop_la_LDFLAGS = -version-info 1:0:0 $(AM_LDFLAGS)
 libhadoop_la_LIBADD = $(HADOOP_OBJS) -ldl -ljvm
 
 #
diff --git a/src/native/src/org/apache/hadoop/io/nativeio/NativeIO.c b/src/native/src/org/apache/hadoop/io/nativeio/NativeIO.c
new file mode 100644
index 0000000..1c1a989
--- /dev/null
+++ b/src/native/src/org/apache/hadoop/io/nativeio/NativeIO.c
@@ -0,0 +1,277 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// get the autoconf settings
+#include "config.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <grp.h>
+#include <jni.h>
+#include <pwd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "org_apache_hadoop.h"
+#include "org_apache_hadoop_io_nativeio_NativeIO.h"
+#include "file_descriptor.h"
+#include "errno_enum.h"
+
+// the NativeIO$Stat inner class and its constructor
+static jclass stat_clazz;
+static jmethodID stat_ctor;
+
+// the NativeIOException class and its constructor
+static jclass nioe_clazz;
+static jmethodID nioe_ctor;
+
+// Internal functions
+static void throw_ioe(JNIEnv* env, int errnum);
+static ssize_t get_pw_buflen();
+
+
+static void stat_init(JNIEnv *env) {
+  // Init Stat
+  jclass clazz = (*env)->FindClass(env, "org/apache/hadoop/io/nativeio/NativeIO$Stat");
+  PASS_EXCEPTIONS(env);
+  stat_clazz = (*env)->NewGlobalRef(env, clazz);
+  stat_ctor = (*env)->GetMethodID(env, stat_clazz, "<init>",
+    "(Ljava/lang/String;Ljava/lang/String;I)V");
+}
+
+static void stat_deinit(JNIEnv *env) {
+  if (stat_clazz != NULL) {  
+    (*env)->DeleteGlobalRef(env, stat_clazz);
+    stat_clazz = NULL;
+  }
+}
+
+static void nioe_init(JNIEnv *env) {
+  // Init NativeIOException
+  nioe_clazz = (*env)->FindClass(
+    env, "org/apache/hadoop/io/nativeio/NativeIOException");
+  PASS_EXCEPTIONS(env);
+
+  nioe_clazz = (*env)->NewGlobalRef(env, nioe_clazz);
+  nioe_ctor = (*env)->GetMethodID(env, nioe_clazz, "<init>",
+    "(Ljava/lang/String;Lorg/apache/hadoop/io/nativeio/Errno;)V");
+}
+
+static void nioe_deinit(JNIEnv *env) {
+  if (nioe_clazz != NULL) {
+    (*env)->DeleteGlobalRef(env, nioe_clazz);
+    nioe_clazz = NULL;
+  }
+  nioe_ctor = NULL;
+}
+
+/*
+ * private static native void initNative();
+ *
+ * We rely on this function rather than lazy initialization because
+ * the lazy approach may have a race if multiple callers try to
+ * init at the same time.
+ */
+JNIEXPORT void JNICALL
+Java_org_apache_hadoop_io_nativeio_NativeIO_initNative(
+	JNIEnv *env, jclass clazz) {
+
+  stat_init(env);
+  PASS_EXCEPTIONS_GOTO(env, error);
+  nioe_init(env);
+  PASS_EXCEPTIONS_GOTO(env, error);
+  fd_init(env);
+  PASS_EXCEPTIONS_GOTO(env, error);
+  errno_enum_init(env);
+  PASS_EXCEPTIONS_GOTO(env, error);
+  return;
+error:
+  // these are all idempodent and safe to call even if the
+  // class wasn't initted yet
+  stat_deinit(env);
+  nioe_deinit(env);
+  fd_deinit(env);
+  errno_enum_deinit(env);
+}
+
+/*
+ * public static native Stat fstat(FileDescriptor fd);
+ */
+JNIEXPORT jobject JNICALL
+Java_org_apache_hadoop_io_nativeio_NativeIO_fstat(
+  JNIEnv *env, jclass clazz, jobject fd_object)
+{
+  jobject ret = NULL;
+  char *pw_buf = NULL;
+
+  int fd = fd_get(env, fd_object);
+  PASS_EXCEPTIONS_GOTO(env, cleanup);
+
+  struct stat s;
+  int rc = fstat(fd, &s);
+  if (rc != 0) {
+    throw_ioe(env, errno);
+    goto cleanup;
+  }
+
+  size_t pw_buflen = get_pw_buflen();
+  if ((pw_buf = malloc(pw_buflen)) == NULL) {
+    THROW(env, "java/lang/OutOfMemoryError", "Couldn't allocate memory for pw buffer");
+    goto cleanup;
+  }
+
+  // Grab username
+  struct passwd pwd, *pwdp;
+  while ((rc = getpwuid_r(s.st_uid, &pwd, pw_buf, pw_buflen, &pwdp)) != 0) {
+    if (rc != ERANGE) {
+      throw_ioe(env, rc);
+      goto cleanup;
+    }
+    free(pw_buf);
+    pw_buflen *= 2;
+    if ((pw_buf = malloc(pw_buflen)) == NULL) {
+      THROW(env, "java/lang/OutOfMemoryError", "Couldn't allocate memory for pw buffer");
+      goto cleanup;
+    }
+  }
+  assert(pwdp == &pwd);
+
+  jstring jstr_username = (*env)->NewStringUTF(env, pwd.pw_name);
+  if (jstr_username == NULL) goto cleanup;
+
+  // Grab group
+  struct group grp, *grpp;
+  while ((rc = getgrgid_r(s.st_gid, &grp, pw_buf, pw_buflen, &grpp)) != 0) {
+    if (rc != ERANGE) {
+      throw_ioe(env, rc);
+      goto cleanup;
+    }
+    free(pw_buf);
+    pw_buflen *= 2;
+    if ((pw_buf = malloc(pw_buflen)) == NULL) {
+      THROW(env, "java/lang/OutOfMemoryError", "Couldn't allocate memory for pw buffer");
+      goto cleanup;
+    }
+  }
+  assert(grpp == &grp);
+
+  jstring jstr_groupname = (*env)->NewStringUTF(env, grp.gr_name);
+  PASS_EXCEPTIONS_GOTO(env, cleanup);
+
+  // Construct result
+  ret = (*env)->NewObject(env, stat_clazz, stat_ctor,
+    jstr_username, jstr_groupname, s.st_mode);
+
+cleanup:
+  if (pw_buf != NULL) free(pw_buf);
+  return ret;
+}
+
+
+/*
+ * public static native FileDescriptor open(String path, int flags, int mode);
+ */
+JNIEXPORT jobject JNICALL
+Java_org_apache_hadoop_io_nativeio_NativeIO_open(
+  JNIEnv *env, jclass clazz, jstring j_path,
+  jint flags, jint mode)
+{
+  jobject ret = NULL;
+
+  const char *path = (*env)->GetStringUTFChars(env, j_path, NULL);
+  if (path == NULL) goto cleanup; // JVM throws Exception for us
+
+  int fd;  
+  if (flags & O_CREAT) {
+    fd = open(path, flags, mode);
+  } else {
+    fd = open(path, flags);
+  }
+
+  if (fd == -1) {
+    throw_ioe(env, errno);
+    goto cleanup;
+  }
+
+  ret = fd_create(env, fd);
+
+cleanup:
+  if (path != NULL) {
+    (*env)->ReleaseStringUTFChars(env, j_path, path);
+  }
+  return ret;
+}
+
+/*
+ * Throw a java.IO.IOException, generating the message from errno.
+ */
+static void throw_ioe(JNIEnv* env, int errnum)
+{
+  const char* message;
+  char buffer[80];
+  jstring jstr_message;
+
+  buffer[0] = 0;
+#ifdef STRERROR_R_CHAR_P
+  // GNU strerror_r
+  message = strerror_r(errnum, buffer, sizeof(buffer));
+  assert (message != NULL);
+#else
+  int ret = strerror_r(errnum, buffer, sizeof(buffer));
+  if (ret == 0) {
+    message = buffer;
+  } else {
+    message = "Unknown error";
+  }
+#endif
+  jobject errno_obj = errno_to_enum(env, errnum);
+
+  if ((jstr_message = (*env)->NewStringUTF(env, message)) == NULL)
+    goto err;
+
+  jthrowable obj = (jthrowable)(*env)->NewObject(env, nioe_clazz, nioe_ctor,
+    jstr_message, errno_obj);
+  if (obj == NULL) goto err;
+
+  (*env)->Throw(env, obj);
+  return;
+
+err:
+  if (jstr_message != NULL)
+    (*env)->ReleaseStringUTFChars(env, jstr_message, message);
+}
+
+
+/*
+ * Determine how big a buffer we need for reentrant getpwuid_r and getgrnam_r
+ */
+ssize_t get_pw_buflen() {
+  size_t ret = 0;
+  #ifdef _SC_GETPW_R_SIZE_MAX
+  ret = sysconf(_SC_GETPW_R_SIZE_MAX);
+  #endif
+  return (ret > 512) ? ret : 512;
+}
+/**
+ * vim: sw=2: ts=2: et:
+ */
+
diff --git a/src/native/src/org/apache/hadoop/io/nativeio/errno_enum.c b/src/native/src/org/apache/hadoop/io/nativeio/errno_enum.c
new file mode 100644
index 0000000..76d1ff1
--- /dev/null
+++ b/src/native/src/org/apache/hadoop/io/nativeio/errno_enum.c
@@ -0,0 +1,119 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ #include <assert.h>
+ #include <errno.h>
+ #include <jni.h>
+
+#include "org_apache_hadoop.h"
+
+typedef struct errno_mapping {
+  int errno_val;
+  char *errno_str;
+} errno_mapping_t;
+
+// Macro to define structs like {FOO, "FOO"} for each errno value
+#define MAPPING(x) {x, #x}
+static errno_mapping_t ERRNO_MAPPINGS[] = {
+  MAPPING(EPERM),
+  MAPPING(ENOENT),
+  MAPPING(ESRCH),
+  MAPPING(EINTR),
+  MAPPING(EIO),
+  MAPPING(ENXIO),
+  MAPPING(E2BIG),
+  MAPPING(ENOEXEC),
+  MAPPING(EBADF),
+  MAPPING(ECHILD),
+  MAPPING(EAGAIN),
+  MAPPING(ENOMEM),
+  MAPPING(EACCES),
+  MAPPING(EFAULT),
+  MAPPING(ENOTBLK),
+  MAPPING(EBUSY),
+  MAPPING(EEXIST),
+  MAPPING(EXDEV),
+  MAPPING(ENODEV),
+  MAPPING(ENOTDIR),
+  MAPPING(EISDIR),
+  MAPPING(EINVAL),
+  MAPPING(ENFILE),
+  MAPPING(EMFILE),
+  MAPPING(ENOTTY),
+  MAPPING(ETXTBSY),
+  MAPPING(EFBIG),
+  MAPPING(ENOSPC),
+  MAPPING(ESPIPE),
+  MAPPING(EROFS),
+  MAPPING(EMLINK),
+  MAPPING(EPIPE),
+  MAPPING(EDOM),
+  MAPPING(ERANGE),
+  {-1, NULL}
+};
+
+static jclass enum_class;
+static jmethodID enum_valueOf;
+static jclass errno_class;
+
+void errno_enum_init(JNIEnv *env) {
+  if (enum_class != NULL) return;
+
+  enum_class = (*env)->FindClass(env, "java/lang/Enum");
+  PASS_EXCEPTIONS(env);
+  enum_class = (*env)->NewGlobalRef(env, enum_class);
+  enum_valueOf = (*env)->GetStaticMethodID(env, enum_class,
+    "valueOf", "(Ljava/lang/Class;Ljava/lang/String;)Ljava/lang/Enum;");
+  PASS_EXCEPTIONS(env);
+
+  errno_class = (*env)->FindClass(env, "org/apache/hadoop/io/nativeio/Errno");
+  PASS_EXCEPTIONS(env);
+  errno_class = (*env)->NewGlobalRef(env, errno_class);
+}
+
+void errno_enum_deinit(JNIEnv *env) {
+  if (enum_class != NULL) {
+    (*env)->DeleteGlobalRef(env, enum_class);
+    enum_class = NULL;
+  }
+  if (errno_class != NULL) {
+    (*env)->DeleteGlobalRef(env, errno_class);
+    errno_class = NULL;
+  }
+  enum_valueOf = NULL;
+}
+
+
+static char *errno_to_string(int errnum) {
+  int i;
+  for (i = 0; ERRNO_MAPPINGS[i].errno_str != NULL; i++) {
+    if (ERRNO_MAPPINGS[i].errno_val == errnum)
+      return ERRNO_MAPPINGS[i].errno_str;
+  }
+  return "UNKNOWN";
+}
+
+jobject errno_to_enum(JNIEnv *env, int errnum) {
+  char *str = errno_to_string(errnum);
+  assert(str != NULL);
+
+  jstring jstr = (*env)->NewStringUTF(env, str);
+  PASS_EXCEPTIONS_RET(env, NULL);
+
+  return (*env)->CallStaticObjectMethod(
+    env, enum_class, enum_valueOf, errno_class, jstr);
+}
diff --git a/src/native/src/org/apache/hadoop/io/nativeio/errno_enum.h b/src/native/src/org/apache/hadoop/io/nativeio/errno_enum.h
new file mode 100644
index 0000000..1eee11a
--- /dev/null
+++ b/src/native/src/org/apache/hadoop/io/nativeio/errno_enum.h
@@ -0,0 +1,27 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef ERRNO_ENUM_H
+#define ERRNO_ENUM_H
+
+#include <jni.h>
+
+void errno_enum_init(JNIEnv *env);
+void errno_enum_deinit(JNIEnv *env);
+jobject errno_to_enum(JNIEnv *env, int errnum);
+
+#endif
diff --git a/src/native/src/org/apache/hadoop/io/nativeio/file_descriptor.c b/src/native/src/org/apache/hadoop/io/nativeio/file_descriptor.c
new file mode 100644
index 0000000..0681db8
--- /dev/null
+++ b/src/native/src/org/apache/hadoop/io/nativeio/file_descriptor.c
@@ -0,0 +1,69 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+ 
+#include <jni.h>
+#include "file_descriptor.h"
+#include "org_apache_hadoop.h"
+
+// class of java.io.FileDescriptor
+static jclass fd_class;
+// the internal field for the integer fd
+static jfieldID fd_descriptor;
+// the no-argument constructor
+static jmethodID fd_constructor;
+
+
+void fd_init(JNIEnv* env)
+{
+  if (fd_class != NULL) return; // already initted
+
+  fd_class = (*env)->FindClass(env, "java/io/FileDescriptor");
+  PASS_EXCEPTIONS(env);
+  fd_class = (*env)->NewGlobalRef(env, fd_class);
+
+  fd_descriptor = (*env)->GetFieldID(env, fd_class, "fd", "I");
+  PASS_EXCEPTIONS(env);
+  fd_constructor = (*env)->GetMethodID(env, fd_class, "<init>", "()V");
+}
+
+void fd_deinit(JNIEnv *env) {
+  if (fd_class != NULL) {
+    (*env)->DeleteGlobalRef(env, fd_class);
+    fd_class = NULL;
+  }
+  fd_descriptor = NULL;
+  fd_constructor = NULL;
+}
+
+/*
+ * Given an instance 'obj' of java.io.FileDescriptor, return the
+ * underlying fd, or throw if unavailable
+ */
+int fd_get(JNIEnv* env, jobject obj) {
+  return (*env)->GetIntField(env, obj, fd_descriptor);
+}
+
+/*
+ * Create a FileDescriptor object corresponding to the given int fd
+ */
+jobject fd_create(JNIEnv *env, int fd) {
+  jobject obj = (*env)->NewObject(env, fd_class, fd_constructor);
+  PASS_EXCEPTIONS_RET(env, NULL);
+
+  (*env)->SetIntField(env, obj, fd_descriptor, fd);
+  return obj;
+} 
diff --git a/src/native/src/org/apache/hadoop/io/nativeio/file_descriptor.h b/src/native/src/org/apache/hadoop/io/nativeio/file_descriptor.h
new file mode 100644
index 0000000..3f68949
--- /dev/null
+++ b/src/native/src/org/apache/hadoop/io/nativeio/file_descriptor.h
@@ -0,0 +1,28 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+#ifndef FILE_DESCRIPTOR_H
+#define FILE_DESCRIPTOR_H
+
+#include <jni.h>
+
+void fd_init(JNIEnv *env);
+void fd_deinit(JNIEnv *env);
+
+int fd_get(JNIEnv* env, jobject obj);
+jobject fd_create(JNIEnv *env, int fd);
+
+#endif
diff --git a/src/native/src/org_apache_hadoop.h b/src/native/src/org_apache_hadoop.h
index 325dcd6..c1513ee 100644
--- a/src/native/src/org_apache_hadoop.h
+++ b/src/native/src/org_apache_hadoop.h
@@ -50,6 +50,22 @@
 	} \
   }
 
+/* Helper macro to return if an exception is pending */
+#define PASS_EXCEPTIONS(env) \
+  { \
+    if ((*env)->ExceptionCheck(env)) return; \
+  }
+
+#define PASS_EXCEPTIONS_GOTO(env, target) \
+  { \
+    if ((*env)->ExceptionCheck(env)) goto target; \
+  }
+
+#define PASS_EXCEPTIONS_RET(env, ret) \
+  { \
+    if ((*env)->ExceptionCheck(env)) return (ret); \
+  }
+
 /** 
  * A helper function to dlsym a 'symbol' from a given library-handle. 
  * 
diff --git a/src/test/core/org/apache/hadoop/io/TestSecureIOUtils.java b/src/test/core/org/apache/hadoop/io/TestSecureIOUtils.java
new file mode 100644
index 0000000..df87507
--- /dev/null
+++ b/src/test/core/org/apache/hadoop/io/TestSecureIOUtils.java
@@ -0,0 +1,83 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.io;
+
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.hadoop.io.nativeio.NativeIO;
+
+import org.junit.BeforeClass;
+import org.junit.Before;
+import org.junit.Test;
+import static org.junit.Assume.*;
+import static org.junit.Assert.*;
+import java.io.IOException;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+
+public class TestSecureIOUtils {
+  private static String realOwner, realGroup; 
+  private static final File testFilePath =
+      new File(System.getProperty("test.build.data"), "TestSecureIOContext");
+
+  @BeforeClass
+  public static void makeTestFile() throws Exception {
+    FileOutputStream fos = new FileOutputStream(testFilePath);
+    fos.write("hello".getBytes("UTF-8"));
+    fos.close();
+
+    Configuration conf = new Configuration();
+    FileSystem rawFS = FileSystem.getLocal(conf).getRaw();
+    FileStatus stat = rawFS.getFileStatus(
+      new Path(testFilePath.toString()));
+    realOwner = stat.getOwner();
+    realGroup = stat.getGroup();
+  }
+
+  @Test
+  public void testReadUnrestricted() throws IOException {
+    SecureIOUtils.openForRead(testFilePath, null, null).close();
+  }
+
+  @Test
+  public void testReadCorrectlyRestrictedWithSecurity() throws IOException {
+    SecureIOUtils
+      .openForRead(testFilePath, realOwner, realGroup).close();
+  }
+
+  @Test(expected=IOException.class)
+  public void testReadIncorrectlyRestrictedWithSecurity() throws IOException {
+    SecureIOUtils
+      .openForRead(testFilePath, "invalidUser", null).close();
+    fail("Didn't throw expection for wrong ownership!");
+  }
+
+  @Test
+  public void testCreateForWrite() throws IOException {
+    try {
+      SecureIOUtils.createForWrite(testFilePath, 0777);
+      fail("Was able to create file at " + testFilePath);
+    } catch (SecureIOUtils.AlreadyExistsException aee) {
+      // expected
+    }
+  }
+}
diff --git a/src/test/core/org/apache/hadoop/io/nativeio/TestNativeIO.java b/src/test/core/org/apache/hadoop/io/nativeio/TestNativeIO.java
new file mode 100644
index 0000000..972c9fc
--- /dev/null
+++ b/src/test/core/org/apache/hadoop/io/nativeio/TestNativeIO.java
@@ -0,0 +1,137 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.io.nativeio;
+
+import java.io.File;
+import java.io.FileDescriptor;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import org.junit.Before;
+import org.junit.Test;
+import static org.junit.Assume.*;
+import static org.junit.Assert.*;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.hadoop.fs.FileUtil;
+import org.apache.hadoop.util.NativeCodeLoader;
+
+public class TestNativeIO {
+  static final Log LOG = LogFactory.getLog(TestNativeIO.class);
+
+  static final File TEST_DIR = new File(
+    System.getProperty("test.build.data"), "testnativeio");
+
+  @Before
+  public void checkLoaded() {
+    assumeTrue(NativeCodeLoader.isNativeCodeLoaded());
+  }
+
+  @Before
+  public void setupTestDir() throws IOException {
+    FileUtil.fullyDelete(TEST_DIR);
+    TEST_DIR.mkdirs();
+  }
+
+  @Test
+  public void testFstat() throws Exception {
+    FileOutputStream fos = new FileOutputStream(
+      new File(TEST_DIR, "testfstat"));
+    NativeIO.Stat stat = NativeIO.fstat(fos.getFD());
+    fos.close();
+    LOG.info("Stat: " + String.valueOf(stat));
+
+    assertEquals(System.getProperty("user.name"), stat.getOwner());
+    assertNotNull(stat.getGroup());
+    assertTrue(!"".equals(stat.getGroup()));
+    assertEquals("Stat mode field should indicate a regular file",
+      NativeIO.Stat.S_IFREG, stat.getMode() & NativeIO.Stat.S_IFMT);
+  }
+
+  @Test
+  public void testFstatClosedFd() throws Exception {
+    FileOutputStream fos = new FileOutputStream(
+      new File(TEST_DIR, "testfstat2"));
+    fos.close();
+    try {
+      NativeIO.Stat stat = NativeIO.fstat(fos.getFD());
+    } catch (NativeIOException nioe) {
+      LOG.info("Got expected exception", nioe);
+      assertEquals(Errno.EBADF, nioe.getErrno());
+    }
+  }
+
+  @Test
+  public void testOpenMissingWithoutCreate() throws Exception {
+    LOG.info("Open a missing file without O_CREAT and it should fail");
+    try {
+      FileDescriptor fd = NativeIO.open(
+        new File(TEST_DIR, "doesntexist").getAbsolutePath(),
+        NativeIO.O_WRONLY, 0700);
+      fail("Able to open a new file without O_CREAT");
+    } catch (NativeIOException nioe) {
+      LOG.info("Got expected exception", nioe);
+      assertEquals(Errno.ENOENT, nioe.getErrno());
+    }
+  }
+
+  @Test
+  public void testOpenWithCreate() throws Exception {
+    LOG.info("Test creating a file with O_CREAT");
+    FileDescriptor fd = NativeIO.open(
+      new File(TEST_DIR, "testWorkingOpen").getAbsolutePath(),
+      NativeIO.O_WRONLY | NativeIO.O_CREAT, 0700);
+    assertNotNull(true);
+    assertTrue(fd.valid());
+    FileOutputStream fos = new FileOutputStream(fd);
+    fos.write("foo".getBytes());
+    fos.close();
+
+    assertFalse(fd.valid());
+
+    LOG.info("Test exclusive create");
+    try {
+      fd = NativeIO.open(
+        new File(TEST_DIR, "testWorkingOpen").getAbsolutePath(),
+        NativeIO.O_WRONLY | NativeIO.O_CREAT | NativeIO.O_EXCL, 0700);
+      fail("Was able to create existing file with O_EXCL");
+    } catch (NativeIOException nioe) {
+      LOG.info("Got expected exception for failed exclusive create", nioe);
+      assertEquals(Errno.EEXIST, nioe.getErrno());
+    }
+  }
+
+  /**
+   * Test that opens and closes a file 10000 times - this would crash with
+   * "Too many open files" if we leaked fds using this access pattern.
+   */
+  @Test
+  public void testFDDoesntLeak() throws IOException {
+    for (int i = 0; i < 10000; i++) {
+      FileDescriptor fd = NativeIO.open(
+        new File(TEST_DIR, "testNoFdLeak").getAbsolutePath(),
+        NativeIO.O_WRONLY | NativeIO.O_CREAT, 0700);
+      assertNotNull(true);
+      assertTrue(fd.valid());
+      FileOutputStream fos = new FileOutputStream(fd);
+      fos.write("foo".getBytes());
+      fos.close();
+    }
+  }
+
+}