configure.in

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dnl 
dnl Autoconf configuration file for APR
dnl 
dnl Process this file with autoconf to produce a configure script.
dnl Use ./buildconf to prepare build files and run autoconf for APR.

AC_PREREQ(2.50)

AC_INIT(build/apr_common.m4)
AC_CONFIG_HEADER(include/arch/unix/apr_private.h)
AC_CONFIG_AUX_DIR(build)

dnl 
dnl Include our own M4 macros along with those for libtool
dnl 
sinclude(build/apr_common.m4)
sinclude(build/apr_network.m4)
sinclude(build/apr_threads.m4)
sinclude(build/apr_win32.m4)
sinclude(build/apr_hints.m4)
sinclude(build/libtool.m4)
sinclude(build/ltsugar.m4)

dnl Hard-coded inclusion at the tail end of apr_private.h:
AH_BOTTOM([
/* switch this on if we have a BeOS version below BONE */
#if BEOS && !HAVE_BONE_VERSION
#define BEOS_R5 1
#else
#define BEOS_BONE 1
#endif

/*
 * Include common private declarations.
 */
#include "../apr_private_common.h"
])

dnl Save user-defined environment settings for later restoration
dnl
APR_SAVE_THE_ENVIRONMENT(CPPFLAGS)
APR_SAVE_THE_ENVIRONMENT(CFLAGS)
APR_SAVE_THE_ENVIRONMENT(LDFLAGS)
APR_SAVE_THE_ENVIRONMENT(LIBS)
APR_SAVE_THE_ENVIRONMENT(INCLUDES)

dnl Generate ./config.nice for reproducing runs of configure
dnl
APR_CONFIG_NICE(config.nice)

AC_CANONICAL_SYSTEM
echo "Configuring APR library"
echo "Platform: $host"

dnl Some initial steps for configuration.  We setup the default directory
dnl and which files are to be configured.

dnl Setup the directory macros now

# Absolute source/build directory
apr_srcdir=`(cd $srcdir && pwd)`
apr_builddir=`pwd`
AC_SUBST(apr_srcdir)
AC_SUBST(apr_builddir)

if test "$apr_builddir" != "$apr_srcdir"; then
  USE_VPATH=1
  APR_CONFIG_LOCATION=build
else
  APR_CONFIG_LOCATION=source
fi

AC_SUBST(APR_CONFIG_LOCATION)

# Libtool might need this symbol -- it must point to the location of
# the generated libtool script (not necessarily the "top" build dir).
#
top_builddir="$apr_builddir"
AC_SUBST(top_builddir)

# Directory containing apr build macros, helpers, and make rules
# NOTE: make rules (apr_rules.mk) will be in the builddir for vpath
#
apr_buildout=$apr_builddir/build
apr_builders=$apr_srcdir/build
AC_SUBST(apr_builders)

MKDIR=$apr_builders/mkdir.sh

dnl Initialize mkdir -p functionality.
APR_MKDIR_P_CHECK($apr_builders/mkdir.sh)

# get our version information
get_version="$apr_builders/get-version.sh"
version_hdr="$apr_srcdir/include/apr_version.h"
APR_MAJOR_VERSION="`$get_version major $version_hdr APR`"
APR_DOTTED_VERSION="`$get_version all $version_hdr APR`"

AC_SUBST(APR_DOTTED_VERSION)
AC_SUBST(APR_MAJOR_VERSION)

echo "APR Version: ${APR_DOTTED_VERSION}"

dnl Enable the layout handling code, then reparse the prefix-style
dnl arguments due to autoconf being a PITA.
APR_ENABLE_LAYOUT(apr)
APR_PARSE_ARGUMENTS

dnl Set optional CC hints here in case autoconf makes an inappropriate choice.
dnl This allows us to suggest what the compiler should be, but still
dnl allows the user to override CC externally.
APR_CC_HINTS

dnl Do the various CC checks *before* preloading values. The preload code
dnl may need to use compiler characteristics to make decisions. This macro
dnl can only be used once within a configure script, so this prevents a
dnl preload section from invoking the macro to get compiler info.
AC_PROG_CC

dnl Preload
APR_PRELOAD

dnl These added to allow default directories to be used...
DEFAULT_OSDIR="unix"
echo "(Default will be ${DEFAULT_OSDIR})"

apr_modules="file_io network_io threadproc misc locks time mmap shmem user memory atomic poll support random"

dnl Checks for programs.
AC_PROG_MAKE_SET
AC_PROG_CPP
AC_PROG_AWK
AC_PROG_LN_S
AC_PROG_RANLIB
AC_PROG_INSTALL
AC_CHECK_PROG(RM, rm, rm)
AC_CHECK_PROG(AS, as, as)
AC_CHECK_PROG(ASCPP, cpp, cpp)
AC_CHECK_TOOL(AR, ar, ar)

dnl Various OS checks that apparently set required flags
ifdef([AC_USE_SYSTEM_EXTENSIONS], [
AC_USE_SYSTEM_EXTENSIONS
], [
AC_AIX
AC_MINIX
])

AC_ISC_POSIX
APR_EBCDIC

dnl this is our library name
APR_LIBNAME="apr${libsuffix}"
AC_SUBST(APR_LIBNAME)

dnl prep libtool
dnl
echo "performing libtool configuration..."

AC_ARG_ENABLE(experimental-libtool,[  --enable-experimental-libtool Use experimental custom libtool],
  [experimental_libtool=$enableval],[experimental_libtool=no])

case $host in
*-os2*)
    # Use a custom-made libtool replacement
    echo "using aplibtool"
    LIBTOOL="$srcdir/build/aplibtool"
    gcc $CFLAGS $CPPFLAGS -o $LIBTOOL.exe $LIBTOOL.c
    ;;
*)
    if test "x$LTFLAGS" = "x"; then
        LTFLAGS='--silent'
    fi
    if test "$experimental_libtool" = "yes"; then
        # Use a custom-made libtool replacement
        echo "using jlibtool"
        LIBTOOL="$apr_builddir/libtool"
        LIBTOOL_SRC="$apr_srcdir/build/jlibtool.c"
        $CC $CFLAGS $CPPFLAGS -o $LIBTOOL $LIBTOOL_SRC
        eval `$apr_builddir/libtool --config | grep "^shlibpath_var=[[A-Z_]]*$"`
        if test "x$shlibpath_var" = "x"; then
            shlibpath_var=REPLACE_WITH_YOUR_SHLIBPATH_VAR
        fi
    else
    dnl libtoolize requires that the following not be indented
AC_PROG_LIBTOOL
        # get libtool's setting of shlibpath_var
        eval `grep "^shlibpath_var=[[A-Z_]]*$" $apr_builddir/libtool`
        if test "x$shlibpath_var" = "x"; then
            shlibpath_var=REPLACE_WITH_YOUR_SHLIBPATH_VAR
        fi
    fi
    ;;
esac

AC_ARG_WITH(installbuilddir, [  --with-installbuilddir=DIR location to store APR build files (defaults to '${datadir}/build')],
  [ installbuilddir=$withval ], [ installbuilddir="${datadir}/build-${APR_MAJOR_VERSION}" ] )
AC_SUBST(installbuilddir)

AC_ARG_WITH(libtool, [  --without-libtool       avoid using libtool to link the library],
  [ use_libtool=$withval ], [ use_libtool="yes" ] )

if test "x$use_libtool" = "xyes"; then
      lt_compile='$(LIBTOOL) $(LTFLAGS) --mode=compile $(COMPILE) -o $@ -c $< && touch $@'
      LT_VERSION="-version-info `$get_version libtool $version_hdr APR`"
      link="\$(LIBTOOL) \$(LTFLAGS) --mode=link \$(LT_LDFLAGS) \$(COMPILE) \$(LT_VERSION) \$(ALL_LDFLAGS) -o \$@"
      so_ext='lo'
      lib_target='-rpath $(libdir) $(OBJECTS)'
      export_lib_target='-rpath \$(libdir) \$(OBJECTS)'
else
      lt_compile='$(COMPILE) -o $@ -c $<'
      link='$(AR) cr $(TARGET_LIB) $(OBJECTS); $(RANLIB) $(TARGET_LIB)'
      so_ext='o'
      lib_target=''
      export_lib_target=''
fi

case $host in
    *-solaris2*)
        apr_platform_runtime_link_flag="-R"
        ;;
    *)
        ;;
esac

AC_SUBST(lt_compile)
AC_SUBST(link)
AC_SUBST(so_ext)
AC_SUBST(lib_target)
AC_SUBST(export_lib_target)
AC_SUBST(shlibpath_var)
AC_SUBST(LTFLAGS)
AC_SUBST(LT_LDFLAGS)
AC_SUBST(LT_VERSION)

dnl ----------------------------- Checks for compiler flags
nl='
'
echo "${nl}Check for compiler flags..."

dnl AC_PROG_CC sets -g in CFLAGS (and -O2 for gcc) by default.
dnl On OS/390 this causes the compiler to insert extra debugger
dnl hook instructions.  That's fine for debug/maintainer builds, not fine
dnl otherwise.

case $host in
    *os390)
        if test "$ac_test_CFLAGS" != set; then
           APR_REMOVEFROM(CFLAGS,-g)
        fi
        ;;
esac

AC_ARG_ENABLE(debug,[  --enable-debug          Turn on debugging and compile time warnings],
  [APR_ADDTO(CFLAGS,-g)
   if test "$GCC" = "yes"; then
     APR_ADDTO(CFLAGS,-Wall)
   elif test "$AIX_XLC" = "yes"; then
     APR_ADDTO(CFLAGS,-qfullpath)
   fi
])dnl

AC_ARG_ENABLE(maintainer-mode,[  --enable-maintainer-mode  Turn on debugging and compile time warnings],
  [APR_ADDTO(CFLAGS,-g)
   if test "$GCC" = "yes"; then
     APR_ADDTO(CFLAGS,[-Wall -Wmissing-prototypes -Wstrict-prototypes -Wmissing-declarations])
   elif test "$AIX_XLC" = "yes"; then
     APR_ADDTO(CFLAGS,-qfullpath -qinitauto=FE -qcheck=all -qinfo=pro)
   fi
])dnl

AC_ARG_ENABLE(profile,[  --enable-profile        Turn on profiling for the build (GCC)],
  if test "$GCC" = "yes"; then
    APR_ADDTO(CFLAGS, -pg)
    APR_REMOVEFROM(CFLAGS, -g)
    if test "$host" = "i586-pc-beos"; then
        APR_REMOVEFROM(CFLAGS, -O2)
        APR_ADDTO(CFLAGS, -O1)
        APR_ADDTO(LDFLAGS, -p)
    fi
  fi
)dnl

AC_ARG_ENABLE(pool-debug,
  [  --enable-pool-debug[[=yes|no|verbose|verbose-alloc|lifetime|owner|all]]    Turn on pools debugging],
  [ if test -z "$enableval"; then
        APR_ADDTO(CPPFLAGS, -DAPR_POOL_DEBUG=1)
    elif test ! "$enableval" = "no"; then
        apr_pool_debug=1
    
        for i in $enableval
        do
            flag=0
        
            case $i in
            yes)
                flag=1
                ;;
            verbose)
                flag=2
                ;;
            lifetime)
                flag=4
                ;;
            owner)
                flag=8
                ;;
            verbose-alloc)
                flag=16
                ;;
            all)
                apr_pool_debug=31
                ;;
            *)
                ;;
            esac

            if test $flag -gt 0; then
                apr_pool_debug=`expr '(' $apr_pool_debug - $apr_pool_debug % \
                    '(' $flag '*' 2 ')' ')' + $flag + $apr_pool_debug % $flag`
            fi
        done
      
        APR_ADDTO(CPPFLAGS, -DAPR_POOL_DEBUG=$apr_pool_debug)
    fi
  ])

if test "$host" = "i586-pc-beos"; then
  AC_ARG_ENABLE(malloc-debug,[  --enable-malloc-debug   Switch on malloc_debug for BeOS],
    APR_REMOVEFROM(CFLAGS, -O2)
    APR_ADDTO(CPPFLAGS, -fcheck-memory-usage -D_KERNEL_MODE)
  ) dnl
fi

# this is the place to put specific options for platform/compiler
# combinations
case "$host:$CC" in
    *-hp-hpux*:cc )
	APR_ADDTO(CFLAGS,[-Ae +Z])
	case $host in
	  ia64-* )
	    ;;
          * )
	    if echo "$CFLAGS " | grep '+DA' >/dev/null; then :
	    else
	      APR_ADDTO(CFLAGS,[+DAportable])
	    fi 
	    ;;
        esac
	;;
    powerpc-*-beos:mwcc* )
	APR_SETVAR(CPP,[mwcc -E])
	APR_SETVAR(CC,mwcc)
	APR_SETVAR(AR,ar)
	;;
esac

AC_CACHE_CHECK([whether the compiler provides atomic builtins], [ap_cv_atomic_builtins],
[AC_TRY_RUN([
int main()
{
    unsigned long val = 1010, tmp, *mem = &val;

    if (__sync_fetch_and_add(&val, 1010) != 1010 || val != 2020)
        return 1;

    tmp = val;

    if (__sync_fetch_and_sub(mem, 1010) != tmp || val != 1010)
        return 1;

    if (__sync_sub_and_fetch(&val, 1010) != 0 || val != 0)
        return 1;

    tmp = 3030;

    if (__sync_val_compare_and_swap(mem, 0, tmp) != 0 || val != tmp)
        return 1;

    if (__sync_lock_test_and_set(&val, 4040) != 3030)
        return 1;

    mem = &tmp;

    if (__sync_val_compare_and_swap(&mem, &tmp, &val) != &tmp)
        return 1;

    __sync_synchronize();

    if (mem != &val)
        return 1;

    return 0;
}], [ap_cv_atomic_builtins=yes], [ap_cv_atomic_builtins=no], [ap_cv_atomic_builtins=no])])

if test "$ap_cv_atomic_builtins" = "yes"; then
    AC_DEFINE(HAVE_ATOMIC_BUILTINS, 1, [Define if compiler provides atomic builtins])
fi

case $host in
    powerpc-405-*)
        # The IBM ppc405cr processor has a bugged stwcx instruction.
        AC_DEFINE(PPC405_ERRATA, 1, [Define on PowerPC 405 where errata 77 applies])
        ;;
    *)
        ;;
esac

dnl Check the depend program we can use
APR_CHECK_DEPEND

proc_mutex_is_global=0

config_subdirs="none"
INSTALL_SUBDIRS="none"
OBJECTS_PLATFORM='$(OBJECTS_unix)'

case $host in
   i386-ibm-aix* | *-ibm-aix[[1-2]].* | *-ibm-aix3.* | *-ibm-aix4.1 | *-ibm-aix4.1.* | *-ibm-aix4.2 | *-ibm-aix4.2.*)
       OSDIR="aix"
       APR_ADDTO(LDFLAGS,-lld)
       eolstr="\\n"
       OBJECTS_PLATFORM='$(OBJECTS_aix)'
       ;;
   *-os2*)
       APR_ADDTO(CPPFLAGS,-DOS2)
       APR_ADDTO(CFLAGS,-Zmt)
       AC_CHECK_LIB(bsd, random)
       OSDIR="os2"
       enable_threads="system_threads"
       eolstr="\\r\\n"
       file_as_socket="0"
       proc_mutex_is_global=1
       OBJECTS_PLATFORM='$(OBJECTS_os2)'
       ;;
   *beos*)
       OSDIR="beos"
       APR_ADDTO(CPPFLAGS,-DBEOS)
       enable_threads="system_threads"
       native_mmap_emul="1"
       APR_CHECK_DEFINE(BONE_VERSION, sys/socket.h)
       eolstr="\\n"
       osver=`uname -r`
       proc_mutex_is_global=1
       OBJECTS_PLATFORM='$(OBJECTS_beos)'
       case $osver in
          5.0.4)
             file_as_socket="1"
             ;;
          *)