#
# configure.in -- configure def for websh
# nca-073-9
#
# (adapted from sampleextension-0.2)
#
# See the file "license.terms" for information on usage and
# redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
# @(#) $Id$
#

#--------------------------------------------------------------------
# This very first macro is used to verify that the configure script can 
# find the sources.  The argument to AC_INIT should be a unique filename
# for this package, and can be a relative path, such as:
#
# AC_INIT(../generic/tcl.h)
#--------------------------------------------------------------------

AC_INIT(../generic/web.c)

#--------------------------------------------------------------------
# Set your package name and version numbers here.  The NODOT_VERSION is
# required for constructing the library name on systems that don't like
# dots in library names (Windows).  The VERSION variable is used on the
# other systems.
#--------------------------------------------------------------------

PACKAGE=web

MAJOR_VERSION=3
MINOR_VERSION=6
PATCHLEVEL=0b4

VERSION=${MAJOR_VERSION}.${MINOR_VERSION}.${PATCHLEVEL}
NODOT_VERSION=${MAJOR_VERSION}${MINOR_VERSION}${PATCHLEVEL}

AC_SUBST(PACKAGE)
AC_SUBST(VERSION)

#--------------------------------------------------------------------
# Check whether --enable-gcc or --disable-gcc was given.  Do this 
# before AC_CYGWIN is called so the compiler can 
# be fully tested by built-in autoconf tools.
# This macro also calls AC_PROG_CC to set the compiler if --enable-gcc
# was not used.
#--------------------------------------------------------------------

SC_ENABLE_GCC
AC_PROG_INSTALL

AC_EGREP_HEADER(strcasecmp, string.h, tcl_ok=1, tcl_ok=0)
if test $tcl_ok = 0; then
	AC_EGREP_HEADER(strcasecmp, strings.h, tcl_ok=1, tcl_ok=0)
	if test $tcl_ok = 0; then
		AC_ERROR(needed function strcasecmp not found on this system)
	fi
fi

#--------------------------------------------------------------------
# Checks to see if the make program sets the $MAKE variable.
#--------------------------------------------------------------------

AC_PROG_MAKE_SET

#--------------------------------------------------------------------
# Find ranlib
#--------------------------------------------------------------------

AC_PROG_RANLIB

#--------------------------------------------------------------------
# This macro performs additional compiler tests.
#--------------------------------------------------------------------

AC_CYGWIN

#--------------------------------------------------------------------
# Determines the correct binary file extension (.o, .obj, .exe etc.)
#--------------------------------------------------------------------

AC_OBJEXT
AC_EXEEXT

#--------------------------------------------------------------------
# "cygpath" is used on windows to generate native path names for include
# files.
# These variables should only be used with the compiler and linker since
# they generate native path names.
#
# Unix tclConfig.sh points SRC_DIR at the top-level directory of
# the Tcl sources, while the Windows tclConfig.sh points SRC_DIR at
# the win subdirectory.  Hence the different usages of SRC_DIR below.
#
# This must be done before calling SC_PUBLIC_TCL_HEADERS
#--------------------------------------------------------------------

case "`uname -s`" in
    *win32* | *WIN32* | *CYGWIN_NT*)
	CYGPATH="cygpath -w"
    ;;
    *)
	CYGPATH=echo
    ;;
esac

AC_SUBST(CYGPATH)

#--------------------------------------------------------------------
# Choose which headers you need.  Extension authors should try very
# hard to only rely on the Tcl public header files.  Internal headers
# contain private data structures and are subject to change without
# notice.
# This MUST be called before SC_PATH_TCLCONFIG/SC_LOAD_TCLCONFIG
#--------------------------------------------------------------------

SC_PUBLIC_TCL_HEADERS

#--------------------------------------------------------------------
# Load the tclConfig.sh file
#--------------------------------------------------------------------

SC_PATH_TCLCONFIG
SC_LOAD_TCLCONFIG


#--------------------------------------------------------------------
# --with-httpd-include and --with-httpd (for Darwin)
#--------------------------------------------------------------------
AC_MSG_CHECKING(for httpd header files)
AC_ARG_WITH(httpdinclude, [  --with-httpdinclude     directory containing the apache header files.], with_httpdinclude=${withval}, with_httpdinclude=NA)

if test x"${with_httpdinclude}" != xNA ; then
  if test -f "${with_httpdinclude}/httpd.h" ; then
      echo "found ${with_httpdinclude}"
      HTTPD_INCLUDES=-I\"${with_httpdinclude}\"
      HTTPD_INCDIR=${with_httpdinclude}
      AC_SUBST(HTTPD_INCLUDES)
  else
      AC_MSG_ERROR([${with_httpdinclude}: directory does not contain Apache httpd header file httpd.h])
  fi
else
  eval "temp_includedir=${includedir}"
  for i in \
    `ls -d ${temp_includedir} 2>/dev/null` \
    /usr/local/include /usr/include /usr/include/httpd /usr/include/apache2\
    /usr/include/apache /usr/include/httpd2 ; do
    if test -f "$i/httpd.h" ; then
      echo "found $i"
      HTTPD_INCLUDES=-I\"$i\"
      HTTPD_INCDIR=$i
      AC_SUBST(HTTPD_INCLUDES)
      break
    fi
  done
  if test x"${HTTPD_INCLUDES}" = x ; then
    AC_MSG_ERROR(httpd.h not found.  Please specify its location with --with-httpdinclude)
  fi
fi

if test "`uname -s`" = "Darwin" ; then
  AC_MSG_CHECKING(for httpd binary)
  AC_ARG_WITH(httpd, [  --with-httpd            apache binary (Darwin only)], with_httpd=${withval}, with_httpd=NA)
  if test x"${with_httpd}" != xNA ; then
    if test -f "${with_httpd}" ; then
      echo "found ${with_httpd}"
      HTTPD_BIN=${with_httpd}
    else
      AC_MSG_ERROR(httpd binary not found.  Invalid specification --with-httpd)
    fi
  else
    if test -f "${HTTPD_INCDIR}/../bin/httpd" ; then
      echo "found ${HTTPD_INCDIR}/../bin/httpd"
      HTTPD_BIN=${HTTPD_INCDIR}/../bin/httpd
    else
      httpd=`which httpd`
      if test -f "${httpd}" ; then
        echo "found ${httpd}"
        HTTPD_BIN=${httpd}
      else
        AC_MSG_ERROR(httpd binary not found.  Please specify its location with --with-httpd)
      fi
    fi
  fi
else
  HTTPD_BIN=
fi
AC_SUBST(HTTPD_BIN)

#--------------------------------------------------------------------
# --with-apr and --with-apr-util
#--------------------------------------------------------------------
# needed for Apache httpd 2.2.4 (and others) if Apache httpd is configured
# with --with-apr and/or --with-apr-util -> header files are missing in 
# installation of httpd

AC_ARG_WITH(aprinclude, [  --with-aprinclude       directory containing apr header files.], with_aprinclude=${withval}, with_aprinclude=NA)

if test x"${with_aprinclude}" != xNA ; then
  AC_MSG_CHECKING(for apache runtime (apr) header files)
  if test -f "${with_aprinclude}/apr.h" ; then
      echo "found ${with_aprinclude}"
      APR_INCLUDES=" -I\"${with_aprinclude}\""
      AC_SUBST(APR_INCLUDES)
  else
      AC_MSG_ERROR([${with_aprinclude}: directory does not contain apr header file apr.h])
  fi
else
  APR_INCLUDES=
  AC_SUBST(APR_INCLUDES)
fi

AC_ARG_WITH(apuinclude, [  --with-apuinclude       directory containing apr util header files.], with_apuinclude=${withval}, with_apuinclude=NA)

if test x"${with_apuinclude}" != xNA ; then
  AC_MSG_CHECKING(for apache runtime utils (apu) header files)
  if test -f "${with_apuinclude}/apr_hooks.h" ; then
      echo "found ${with_apuinclude}"
      APU_INCLUDES=" -I\"${with_apuinclude}\""
      AC_SUBST(APU_INCLUDES)
  else
      AC_MSG_ERROR([${with_apuinclude}: directory does not contain apu header file apr_hooks.h])
  fi
else
  APU_INCLUDES=
  AC_SUBST(APU_INCLUDES)
fi

#--------------------------------------------------------------------
# A few miscellaneous platform-specific items:
#
# Define a special symbol for Windows (BUILD_exampleA in this case) so
# that we create the export library with the dll.  See sha1.h on how
# to use this.
#
# Windows creates a few extra files that need to be cleaned up.
# You can add more files to clean if your extension creates any extra
# files.
#
# Define any extra compiler flags in the PACKAGE_CFLAGS variable.
# These will be appended to the current set of compiler flags for
# your system.
#--------------------------------------------------------------------

case "`uname -s`" in
    *win32* | *WIN32* | *CYGWIN_NT*)
	CLEANFILES="*.lib *.dll *.exp *.ilk *.pdb vc50.pch"
    ;;
    *)
	CLEANFILES="*pure* *.cov* ../tests/webtest.log ../tests/*.dat"
    ;;
esac
AC_SUBST(CLEANFILES)


#--------------------------------------------------------------------
# set SYSV or WIN32 or AIX
#--------------------------------------------------------------------
case "`uname -s`" in
    *win32* | *WIN32* | *CYGWIN_NT*)
	PLATFORM="WIN32"
    ;;
    *aix* | *AIX* )
	PLATFORM="AIX"
    ;;
    *freebsd* | *FreeBSD* )
	PLATFORM="FREEBSD"
    ;;
    *bsd/os* | *BSD/OS* )
	PLATFORM="BSDI"
    ;;
    *)
	PLATFORM="SYSV"
    ;;
esac
AC_SUBST(PLATFORM)

#--------------------------------------------------------------------
# Check whether --enable-threads or --disable-threads was given.
# So far only Tcl responds to this one.
#--------------------------------------------------------------------

SC_ENABLE_THREADS

#--------------------------------------------------------------------
# The statement below defines a collection of symbols related to
# building as a shared library instead of a static library.
#--------------------------------------------------------------------

SC_ENABLE_SHARED

#--------------------------------------------------------------------
# This macro figures out what flags to use with the compiler/linker
# when building shared/static debug/optimized objects.  This information
# is all taken from the tclConfig.sh file.
#--------------------------------------------------------------------

CFLAGS_DEBUG=${TCL_CFLAGS_DEBUG}
CFLAGS_OPTIMIZE=${TCL_CFLAGS_OPTIMIZE}
LDFLAGS_DEBUG=${TCL_LDFLAGS_DEBUG}
LDFLAGS_OPTIMIZE=${TCL_LDFLAGS_OPTIMIZE}
SHLIB_LD=${TCL_SHLIB_LD}
STLIB_LD=${TCL_STLIB_LD}
SHLIB_CFLAGS=${TCL_SHLIB_CFLAGS}

AC_SUBST(CFLAGS_DEBUG)
AC_SUBST(CFLAGS_OPTIMIZE)
AC_SUBST(STLIB_LD)
AC_SUBST(SHLIB_LD)
AC_SUBST(SHLIB_CFLAGS)
AC_SUBST(SHLIB_LDFLAGS)

#--------------------------------------------------------------------
# Set the default compiler switches based on the --enable-symbols 
# option.
#--------------------------------------------------------------------

SC_ENABLE_SYMBOLS

if test "${SHARED_BUILD}" = "1" ; then
    CFLAGS='${CFLAGS_DEFAULT} ${CFLAGS_DEBUG} ${CFLAGS_WARNING} ${SHLIB_CFLAGS}'
else
    CFLAGS='${CFLAGS_DEFAULT} ${CFLAGS_DEBUG} ${CFLAGS_WARNING}'
fi

#--------------------------------------------------------------------
# Everyone should be linking against the Tcl stub library.  If you
# can't for some reason, remove this definition.  If you aren't using
# stubs, you also need to modify the SHLIB_LD_LIBS setting below to
# link against the non-stubbed Tcl library.
#--------------------------------------------------------------------

USE_TCL_STUBS=1
AC_SUBST(USE_TCL_STUBS)

#--------------------------------------------------------------------
# This macro generates a line to use when building a library.  It
# depends on values set by the SC_ENABLE_SHARED, SC_ENABLE_SYMBOLS,
# and SC_LOAD_TCLCONFIG macros above.
#--------------------------------------------------------------------

SC_MAKE_LIB

#--------------------------------------------------------------------
# eval these two values to dereference the ${DBGX} variable.
#--------------------------------------------------------------------

eval "SHARED_LIB_SUFFIX=${TCL_SHARED_LIB_SUFFIX}"
eval "UNSHARED_LIB_SUFFIX=${TCL_UNSHARED_LIB_SUFFIX}"

AC_SUBST(SHARED_LIB_SUFFIX)
AC_SUBST(UNSHARED_LIB_SUFFIX)

#--------------------------------------------------------------------
# Shared libraries and static libraries have different names.
#--------------------------------------------------------------------

case "`uname -s`" in
    *win32* | *WIN32* | *CYGWIN_NT*)
	if test "${SHARED_BUILD}" = "1" ; then
	    SHLIB_LD_LIBS="\"`cygpath -w ${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}`\" ${TCL_SHLIB_LD_LIBS}"
	    eval "${PACKAGE}_LIB_FILE=${PACKAGE}sh${SHARED_LIB_SUFFIX}"
	    RANLIB=:
	else
	    eval "${PACKAGE}_LIB_FILE=${PACKAGE}sh${UNSHARED_LIB_SUFFIX}"
	fi
	;;
    *)
	if test "${SHARED_BUILD}" = "1" ; then
	    SHLIB_LD_LIBS="${TCL_STUB_LIB_SPEC}"
	    eval "${PACKAGE}_LIB_FILE=lib${PACKAGE}sh${SHARED_LIB_SUFFIX}"
	    RANLIB=:
	else
	    eval "${PACKAGE}_LIB_FILE=lib${PACKAGE}sh${UNSHARED_LIB_SUFFIX}"
	fi
	;;
esac

#--------------------------------------------------------------------
# Change the name from exampeA_LIB_FILE to match your package name.
#--------------------------------------------------------------------

AC_SUBST(web_LIB_FILE)
AC_SUBST(SHLIB_LD_LIBS)

#--------------------------------------------------------------------
# Find tclsh so that we can run pkg_mkIndex to generate the pkgIndex.tcl
# file during the install process.  Don't run the TCLSH_PROG through
# ${CYGPATH} because it's being used directly by make.
# Require that we use a tclsh shell version 8.2 or later since earlier
# versions have bugs in the pkg_mkIndex routine.
#--------------------------------------------------------------------

#AC_PATH_PROGS (VARIABLE, PROGS-TO-CHECK-FOR [,
#          VALUE-IF-NOT-FOUND [, PATH]])
#     Like `AC_CHECK_PROGS', but if any of PROGS-TO-CHECK-FOR are found,
#     set VARIABLE to the entire path of the program found.

AC_PATH_PROGS(TCLSH_PROG, \
  tclsh8.5${EXEEXT} tclsh85${EXEEXT} tclsh8.4${EXEEXT} tclsh84${EXEEXT} tclsh8.3${EXEEXT} tclsh83${EXEEXT} tclsh8.2${EXEEXT} tclsh82${EXEEXT}, :, \
  :${TCL_PACKAGE_PATH}/../bin:.:${prefix}:${exec_prefix}:${PATH})

if test "x${TCLSH_PROG}" = "x:" ; then
    AC_ERROR(needed tclsh not found)
fi

AC_SUBST(TCL_LIB_SPEC)
AC_SUBST(TCLSH_PROG)
AC_SUBST(TCL_PACKAGE_PATH)

#--------------------------------------------------------------------
# Finally, substitute all of the various values into the Makefile.
#--------------------------------------------------------------------

AC_OUTPUT([Makefile])