1 dnl configuration script for expat
2 dnl Process this file with autoconf to produce a configure script.
4 dnl Copyright 2000 Clark Cooper
6 dnl This file is part of EXPAT.
8 dnl EXPAT is free software; you can redistribute it and/or modify it
9 dnl under the terms of the License (based on the MIT/X license) contained
10 dnl in the file COPYING that comes with this distribution.
13 dnl Ensure that Expat is configured with autoconf 2.58 or newer
16 dnl Get the version number of Expat, using m4's esyscmd() command to run
17 dnl the command at m4-generation time. This allows us to create an m4
18 dnl symbol holding the correct version number. AC_INIT() requires the
19 dnl version number at m4-time, rather than when ./configure is run, so
20 dnl all this must happen as part of m4, not as part of the shell code
21 dnl contained in ./configure.
23 dnl NOTE: esyscmd() is a GNU M4 extension. Thus, we wrap it in an appropriate
24 dnl test. I believe this test will work, but I don't have a place with non-
25 dnl GNU M4 to test it right now.
26 define([expat_version], ifdef([__gnu__],
27 [esyscmd(conftools/get-version.sh lib/expat.h)],
29 AC_INIT(expat, expat_version, expat-bugs@libexpat.org)
30 undefine([expat_version])
32 AC_CONFIG_SRCDIR(Makefile.in)
33 AC_CONFIG_AUX_DIR(conftools)
34 AC_CONFIG_MACRO_DIR([m4])
38 dnl Increment LIBREVISION if source code has changed at all
40 dnl If the API has changed, increment LIBCURRENT and set LIBREVISION to 0
42 dnl If the API changes compatibly (i.e. simply adding a new function
43 dnl without changing or removing earlier interfaces), then increment LIBAGE.
45 dnl If the API changes incompatibly set LIBAGE back to 0
52 AC_CONFIG_HEADER(expat_config.h)
54 sinclude(conftools/ac_c_bigendian_cross.m4)
56 sinclude(conftools/visibility.m4)
62 dnl Checks for programs.
64 AC_USE_SYSTEM_EXTENSIONS
72 if test "$GCC" = yes ; then
74 dnl Be careful about adding the -fexceptions option; some versions of
75 dnl GCC don't support it and it causes extra warnings that are only
76 dnl distracting; avoid.
78 OLDCFLAGS="$CFLAGS -Wall -Wmissing-prototypes -Wstrict-prototypes"
79 CFLAGS="$OLDCFLAGS -fexceptions"
80 AC_MSG_CHECKING(whether $CC accepts -fexceptions)
83 AC_MSG_RESULT(no); CFLAGS="$OLDCFLAGS")
84 CXXFLAGS=`echo "$CFLAGS" | sed 's/ -Wmissing-prototypes -Wstrict-prototypes//'`
87 dnl Checks for header files.
90 dnl Checks for typedefs, structures, and compiler characteristics.
92 dnl Note: Avoid using AC_C_BIGENDIAN because it does not
93 dnl work in a cross compile.
98 AC_CHECK_FUNCS(memmove bcopy)
100 dnl Only needed for xmlwf:
101 AC_CHECK_HEADERS(fcntl.h unistd.h)
105 if test "$ac_cv_func_mmap_fixed_mapped" = "yes"; then
112 dnl Needed for the test support code; this was found at
113 dnl http://lists.gnu.org/archive/html/bug-autoconf/2002-07/msg00028.html
116 # ------------------ #
117 # Checks to see if ANSI C99 CPP variable __func__ works.
118 # If not, perhaps __FUNCTION__ works instead.
119 # If not, we'll just define __func__ to "".
120 AC_DEFUN([AC_CPP_FUNC],
121 [AC_REQUIRE([AC_PROG_CC_STDC])dnl
122 AC_CACHE_CHECK([for an ANSI C99-conforming __func__], ac_cv_cpp_func,
123 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
124 [[char *foo = __func__;]])],
125 [ac_cv_cpp_func=yes],
126 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
127 [[char *foo = __FUNCTION__;]])],
128 [ac_cv_cpp_func=__FUNCTION__],
129 [ac_cv_cpp_func=no])])])
130 if test $ac_cv_cpp_func = __FUNCTION__; then
131 AC_DEFINE(__func__,__FUNCTION__,
132 [Define to __FUNCTION__ or "" if `__func__' does not conform to
134 elif test $ac_cv_cpp_func = no; then
135 AC_DEFINE(__func__,"",
136 [Define to __FUNCTION__ or "" if `__func__' does not conform to
144 dnl Some basic configuration:
145 AC_DEFINE([XML_NS], 1,
146 [Define to make XML Namespaces functionality available.])
147 AC_DEFINE([XML_DTD], 1,
148 [Define to make parameter entity parsing functionality available.])
149 AC_DEFINE([XML_CONTEXT_BYTES], 1024,
150 [Define to specify how much context to retain around the current parse point.])
152 AC_CONFIG_FILES([Makefile expat.pc])
155 abs_srcdir="`cd $srcdir && pwd`"
157 if test "$abs_srcdir" != "$abs_builddir"; then