dnl   configuration script for expat

dnl   Process this file with autoconf to produce a configure script.

dnl

dnl   Copyright 2000 Clark Cooper

dnl

dnl   This file is part of EXPAT.

dnl

dnl   EXPAT is free software; you can redistribute it and/or modify it

dnl   under the terms of the License (based on the MIT/X license) contained

dnl   in the file COPYING that comes with this distribution.

dnl

dnl Ensure that Expat is configured with autoconf 2.52 or newer

AC_PREREQ(2.52)

dnl Get the version number of Expat, using m4's esyscmd() command to run

dnl the command at m4-generation time. This allows us to create an m4

dnl symbol holding the correct version number. AC_INIT() requires the

dnl version number at m4-time, rather than when ./configure is run, so

dnl all this must happen as part of m4, not as part of the shell code

dnl contained in ./configure.

dnl

dnl NOTE: esyscmd() is a GNU M4 extension. Thus, we wrap it in an appropriate

dnl test. I believe this test will work, but I don't have a place with non-

dnl GNU M4 to test it right now.

define([expat_version], ifdef([__gnu__],

                              [esyscmd(conftools/get-version.sh lib/expat.h)],

                              [2.0.x]))

AC_INIT(expat, expat_version, expat-bugs@libexpat.org)

undefine([expat_version])

AC_CONFIG_SRCDIR(Makefile.in)

AC_CONFIG_AUX_DIR(conftools)

dnl

dnl Increment LIBREVISION if source code has changed at all

dnl

dnl If the API has changed, increment LIBCURRENT and set LIBREVISION to 0

dnl

dnl If the API changes compatibly (i.e. simply adding a new function

dnl without changing or removing earlier interfaces), then increment LIBAGE.

dnl 

dnl If the API changes incompatibly set LIBAGE back to 0

dnl

LIBCURRENT=6

LIBREVISION=2

LIBAGE=5

AC_CONFIG_HEADER(expat_config.h)

sinclude(conftools/libtool.m4)

sinclude(conftools/ac_c_bigendian_cross.m4)

AC_LIBTOOL_WIN32_DLL

AC_PROG_LIBTOOL

AC_SUBST(LIBCURRENT)

AC_SUBST(LIBREVISION)

AC_SUBST(LIBAGE)

dnl Checks for programs.

AC_PROG_CC

AC_PROG_INSTALL

if test "$GCC" = yes ; then

    dnl

    dnl Be careful about adding the -fexceptions option; some versions of

    dnl GCC don't support it and it causes extra warnings that are only

    dnl distracting; avoid.

    dnl

    OLDCFLAGS="$CFLAGS -Wall -Wmissing-prototypes -Wstrict-prototypes"

    CFLAGS="$OLDCFLAGS -fexceptions"

    AC_MSG_CHECKING(whether $CC accepts -fexceptions)

    AC_TRY_LINK( , ,

                   AC_MSG_RESULT(yes),

                   AC_MSG_RESULT(no); CFLAGS="$OLDCFLAGS")

    CXXFLAGS=`echo "$CFLAGS" | sed 's/ -Wmissing-prototypes -Wstrict-prototypes//'`

fi

dnl Checks for header files.

AC_HEADER_STDC

dnl Checks for typedefs, structures, and compiler characteristics.

dnl Note: Avoid using AC_C_BIGENDIAN because it does not

dnl work in a cross compile.

AC_C_BIGENDIAN_CROSS

AC_C_CONST

AC_TYPE_SIZE_T

AC_CHECK_FUNCS(memmove bcopy)

dnl Only needed for xmlwf:

AC_CHECK_HEADERS(fcntl.h unistd.h)

AC_TYPE_OFF_T

AC_FUNC_MMAP

if test "$ac_cv_func_mmap_fixed_mapped" = "yes"; then

    FILEMAP=unixfilemap

else

    FILEMAP=readfilemap

fi

AC_SUBST(FILEMAP)

dnl Needed for the test support code; this was found at

dnl http://lists.gnu.org/archive/html/bug-autoconf/2002-07/msg00028.html

# AC_CPP_FUNC

# ------------------ #

# Checks to see if ANSI C99 CPP variable __func__ works.

# If not, perhaps __FUNCTION__ works instead. 

# If not, we'll just define __func__ to "". 

AC_DEFUN([AC_CPP_FUNC],

[AC_REQUIRE([AC_PROG_CC_STDC])dnl

AC_CACHE_CHECK([for an ANSI C99-conforming __func__], ac_cv_cpp_func,

[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],

[[char *foo = __func__;]])],

  [ac_cv_cpp_func=yes], 

  [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],

[[char *foo = __FUNCTION__;]])],

  [ac_cv_cpp_func=__FUNCTION__], 

  [ac_cv_cpp_func=no])])])

if test $ac_cv_cpp_func = __FUNCTION__; then

  AC_DEFINE(__func__,__FUNCTION__,

            [Define to __FUNCTION__ or "" if `__func__' does not conform to 

ANSI C.])

elif test $ac_cv_cpp_func = no; then

  AC_DEFINE(__func__,"",

            [Define to __FUNCTION__ or "" if `__func__' does not conform to 

ANSI C.])

fi

])# AC_CPP_FUNC

AC_CPP_FUNC

dnl Some basic configuration:

AC_DEFINE([XML_NS], 1,

          [Define to make XML Namespaces functionality available.])

AC_DEFINE([XML_DTD], 1,

          [Define to make parameter entity parsing functionality available.])

AC_DEFINE([XML_CONTEXT_BYTES], 1024,

          [Define to specify how much context to retain around the current parse point.])

AC_CONFIG_FILES(Makefile)

AC_OUTPUT

abs_srcdir="`cd $srcdir && pwd`"

abs_builddir="`pwd`"

if test "$abs_srcdir" != "$abs_builddir"; then

  make mkdir-init

fi