dnl Autoconf file for Serf

AC_PREREQ(2.50)
AC_INIT(context.c)

AC_CONFIG_AUX_DIR(build)

sinclude(build/apr_common.m4)
sinclude(build/find_apr.m4)

AC_PREFIX_DEFAULT(/usr/local/serf)

dnl Get the layout here, so we can pass the required variables to apr
APR_ENABLE_LAYOUT(Serf, [])

dnl reparse the configure arguments.
APR_PARSE_ARGUMENTS

APR_SAVE_THE_ENVIRONMENT(CPPFLAGS)
APR_SAVE_THE_ENVIRONMENT(CFLAGS)
APR_SAVE_THE_ENVIRONMENT(CXXFLAGS)
APR_SAVE_THE_ENVIRONMENT(LDFLAGS)
APR_SAVE_THE_ENVIRONMENT(LIBS)
APR_SAVE_THE_ENVIRONMENT(INCLUDES)

APR_CONFIG_NICE(config.nice)

nl='
'
dnl Check that mkdir -p works
APR_MKDIR_P_CHECK($top_srcdir/build/mkdir.sh)
AC_SUBST(mkdir_p)

dnl ## Run configure for packages Apache uses

dnl shared library support for these packages doesn't currently
dnl work on some platforms

AC_CANONICAL_SYSTEM

orig_prefix="$prefix"

echo $ac_n "${nl}Configuring Apache Portable Runtime library...${nl}"

APR_FIND_APR("$srcdir/apr", "./apr", 1, 0 1 2)

if test "$apr_found" = "no"; then
  AC_MSG_ERROR([APR not found.  Please read the documentation.])
fi

if test "$apr_found" = "reconfig"; then
  APR_SUBDIR_CONFIG(apr,
                    [--prefix=$prefix --exec-prefix=$exec_prefix --libdir=$libdir --includedir=$includedir --bindir=$bindir --datadir=$datadir --with-installbuilddir=$installbuilddir],
                    [--enable-layout=*|\'--enable-layout=*])
  dnl We must be the first to build and the last to be cleaned
  SERF_BUILD_SRCLIB_DIRS="apr $SERF_BUILD_SRCLIB_DIRS"
  SERF_CLEAN_SRCLIB_DIRS="$SERF_CLEAN_SRCLIB_DIRS apr"
fi

APR_SETIFNULL(CC, `$apr_config --cc`)
APR_SETIFNULL(CPP, `$apr_config --cpp`)
APR_SETIFNULL(APR_LIBTOOL, `$apr_config --apr-libtool`)
APR_ADDTO(CFLAGS, `$apr_config --cflags`)
APR_ADDTO(CPPFLAGS, `$apr_config --cppflags`)
APR_ADDTO(LDFLAGS, `$apr_config --ldflags`)
SHLIBPATH_VAR=`$apr_config --shlib-path-var`
APR_BINDIR=`$apr_config --bindir`
APR_INCLUDES=`$apr_config --includes`
APR_VERSION=`$apr_config --version`
APR_CONFIG="$apr_config"

APR_SETIFNULL(LTFLAGS, "--silent")
AC_SUBST(LTFLAGS)

AC_SUBST(APR_LIBTOOL)
AC_SUBST(APR_BINDIR)
AC_SUBST(APR_INCLUDES)
AC_SUBST(APR_VERSION)
AC_SUBST(APR_CONFIG)

APR_VERSION_MAJOR="`echo \"$APR_VERSION\" | sed 's,\..*,,'`"
APR_VERSION_NUM="`echo \"$APR_VERSION\" | \
                sed -e 's/[[^0-9\.]].*$//' \
                    -e 's/\.\([[0-9]]\)$/.0\1/' \
                    -e 's/\.\([[0-9]][[0-9]]\)$/.0\1/' \
                    -e 's/\.\([[0-9]]\)\./0\1/; s/\.//g;'`"

if test "$APR_VERSION_NUM" -ge "200000"; then

  APU_BINDIR=""
  APU_INCLUDES=""
  APU_VERSION=""
  APU_CONFIG=""

else
  sinclude(build/find_apu.m4)

  echo $ac_n "${nl}Configuring Apache Portable Runtime Utility library...${nl}"

   ifdef([APR_FIND_APU], [
     APR_FIND_APU("$srcdir/apr-util", "./apr-util", 1, $APR_VERSION_MAJOR)
   ], [AC_MSG_ERROR([APR-util required, but find_apu.m4 not present!])])

  if test "$apu_found" = "no"; then
    AC_MSG_ERROR([APR-util not found.  Please read the documentation.])
  fi

  # Catch some misconfigurations:
  case ${apr_found}.${apu_found} in
    reconfig.yes)
      AC_MSG_ERROR([Cannot use an external APR-util with the bundled APR])
      ;;
    yes.reconfig)
      AC_MSG_ERROR([Cannot use an external APR with the bundled APR-util])
      ;;
  esac  

  if test "$apu_found" = "reconfig"; then
    APR_SUBDIR_CONFIG(apr-util,
                      [--with-apr=../apr --prefix=$prefix --exec-prefix=$exec_prefix --libdir=$libdir --includedir=$includedir --bindir=$bindir],
                      [--enable-layout=*|\'--enable-layout=*])
    dnl We must be the last to build and the first to be cleaned
    SERF_BUILD_SRCLIB_DIRS="$SERF_BUILD_SRCLIB_DIRS apr-util"
    SERF_CLEAN_SRCLIB_DIRS="apr-util $SERF_CLEAN_SRCLIB_DIRS"
  fi

  APR_ADDTO(LDFLAGS, `$apu_config --ldflags`)
  APU_BINDIR=`$apu_config --bindir`
  APU_INCLUDES=`$apu_config --includes`
  APU_VERSION=`$apu_config --version`
  APU_CONFIG="$APU_BINDIR/apu-`echo ${APU_VERSION} | sed 's,\..*,,'`-config"
fi

AC_SUBST(APU_BINDIR)
AC_SUBST(APU_INCLUDES)
AC_SUBST(APU_VERSION)
AC_SUBST(APU_CONFIG)

dnl In case we picked up CC and CPP from APR, get that info into the
dnl config cache so that PCRE uses it.  Otherwise, CC and CPP used for
dnl PCRE and for our config tests will be whatever PCRE determines.
AC_PROG_CC
AC_PROG_CPP
AC_PROG_INSTALL

if test "x${cache_file}" = "x/dev/null"; then
  # Likewise, ensure that CC and CPP are passed through to the pcre
  # configure script iff caching is disabled (the autoconf 2.5x default).
  export CC; export CPP
fi

echo $ac_n "Configuring Serf...${nl}"

dnl Absolute source/build directory
abs_srcdir=`(cd $srcdir && pwd)`
abs_builddir=`pwd`

dnl get our version information
get_version="$abs_srcdir/build/get-version.sh"
version_hdr="$abs_srcdir/serf.h"
SERF_MAJOR_VERSION="`$get_version major $version_hdr SERF`"
SERF_DOTTED_VERSION="`$get_version all $version_hdr SERF`"

AC_SUBST(SERF_MAJOR_VERSION)
AC_SUBST(SERF_DOTTED_VERSION)

AC_SUBST(SERF_BUILD_SRCLIB_DIRS)
AC_SUBST(SERF_CLEAN_SRCLIB_DIRS)

AC_ARG_WITH(openssl,
  APR_HELP_STRING([--with-openssl=PATH],[Path to OpenSSL (eg. /usr/local/ssl)]),
[
  if test "$withval" = "yes"; then
    AC_MSG_ERROR([--with-openssl requires a path])
  else
    openssl_prefix=$withval

    if test "x$openssl_prefix" != "x" -a ! -d "$openssl_prefix"; then
      AC_MSG_ERROR('--with-openssl requires a path to a directory')
    fi

    APR_ADDTO(CPPFLAGS, "-I${openssl_prefix}/include")
    if test -e "${openssl_prefix}/Makefile"; then
      APR_ADDTO(LDFLAGS, "-L${openssl_prefix}")
      APR_ADDTO(LDFLAGS, "-R${openssl_prefix}")
    else
      APR_ADDTO(LDFLAGS, "-L${openssl_prefix}/lib")
      APR_ADDTO(LDFLAGS, "-R${openssl_prefix}/lib")
    fi
  fi
])

dnl Look for OpenSSL
AC_CHECK_HEADER([openssl/opensslv.h], [],
                [AC_MSG_ERROR([We require OpenSSL; try --with-openssl])])

dnl CuTest requires libm on Solaris
AC_SEARCH_LIBS(fabs, m)

libs=""
if test -n "$apu_config"; then
  APR_ADDTO(libs, [`$apu_config --link-libtool --libs`])
fi
APR_ADDTO(libs, [`$apr_config --link-libtool --libs` $LIBS])

APR_ADDTO(SERF_LIBS, [$libs])
AC_SUBST(SERF_LIBS)

APR_RESTORE_THE_ENVIRONMENT(CPPFLAGS, EXTRA_)
APR_RESTORE_THE_ENVIRONMENT(CFLAGS, EXTRA_)
APR_RESTORE_THE_ENVIRONMENT(CXXFLAGS, EXTRA_)
APR_RESTORE_THE_ENVIRONMENT(LDFLAGS, EXTRA_)
APR_RESTORE_THE_ENVIRONMENT(LIBS, EXTRA_)
APR_RESTORE_THE_ENVIRONMENT(INCLUDES, EXTRA_)

AC_CONFIG_FILES([Makefile serf.pc])
AC_CONFIG_COMMANDS([mkdir-vpath],[make mkdir-vpath])

AC_OUTPUT