freebsd-dev/contrib/expat/configure.in
Coleman Kane 220ed979de Virgin import (trimmed) of eXpat v2.0.1. Discussed and tested with
sam and phk who are the two consumers of this library. If there is
any other fallout, email me and I will take care of it.

Approved by: sam, phk
2008-05-08 13:51:16 +00:00

155 lines
4.5 KiB
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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