1dnl   configuration script for expat
2dnl   Process this file with autoconf to produce a configure script.
3dnl
4dnl   Copyright 2000 Clark Cooper
5dnl
6dnl   This file is part of EXPAT.
7dnl
8dnl   EXPAT is free software; you can redistribute it and/or modify it
9dnl   under the terms of the License (based on the MIT/X license) contained
10dnl   in the file COPYING that comes with this distribution.
11dnl
12
13dnl Ensure that Expat is configured with autoconf 2.58 or newer
14AC_PREREQ(2.58)
15
16dnl Get the version number of Expat, using m4's esyscmd() command to run
17dnl the command at m4-generation time. This allows us to create an m4
18dnl symbol holding the correct version number. AC_INIT() requires the
19dnl version number at m4-time, rather than when ./configure is run, so
20dnl all this must happen as part of m4, not as part of the shell code
21dnl contained in ./configure.
22dnl
23dnl NOTE: esyscmd() is a GNU M4 extension. Thus, we wrap it in an appropriate
24dnl test. I believe this test will work, but I don't have a place with non-
25dnl GNU M4 to test it right now.
26define([expat_version], ifdef([__gnu__],
27                              [esyscmd(conftools/get-version.sh lib/expat.h)],
28                              [2.1.x]))
29AC_INIT(expat, expat_version, expat-bugs@libexpat.org)
30undefine([expat_version])
31
32AC_CONFIG_SRCDIR(Makefile.in)
33AC_CONFIG_AUX_DIR(conftools)
34AC_CONFIG_MACRO_DIR([m4])
35
36
37dnl
38dnl Increment LIBREVISION if source code has changed at all
39dnl
40dnl If the API has changed, increment LIBCURRENT and set LIBREVISION to 0
41dnl
42dnl If the API changes compatibly (i.e. simply adding a new function
43dnl without changing or removing earlier interfaces), then increment LIBAGE.
44dnl
45dnl If the API changes incompatibly set LIBAGE back to 0
46dnl
47
48LIBCURRENT=7
49LIBREVISION=0
50LIBAGE=6
51
52AC_CONFIG_HEADER(expat_config.h)
53
54sinclude(conftools/ac_c_bigendian_cross.m4)
55
56
57dnl Check for many C compilers (have to do this before libtool stuff)
58AC_BAKEFILE_PROG_CC
59
60AC_LIBTOOL_WIN32_DLL
61AC_PROG_LIBTOOL
62
63AC_SUBST(LIBCURRENT)
64AC_SUBST(LIBREVISION)
65AC_SUBST(LIBAGE)
66
67dnl Checks for programs.
68AC_PROG_CXX
69AC_PROG_INSTALL
70
71if test "$GCC" = yes ; then
72    dnl
73    dnl Be careful about adding the -fexceptions option; some versions of
74    dnl GCC don't support it and it causes extra warnings that are only
75    dnl distracting; avoid.
76    dnl
77    OLDCFLAGS="$CFLAGS -Wall -Wmissing-prototypes -Wstrict-prototypes"
78    CFLAGS="$OLDCFLAGS -fexceptions"
79    AC_MSG_CHECKING(whether $CC accepts -fexceptions)
80    AC_TRY_LINK( , ,
81                   AC_MSG_RESULT(yes),
82                   AC_MSG_RESULT(no); CFLAGS="$OLDCFLAGS")
83    CXXFLAGS=`echo "$CFLAGS" | sed 's/ -Wmissing-prototypes -Wstrict-prototypes//'`
84fi
85
86dnl Checks for header files.
87AC_HEADER_STDC
88
89dnl Checks for typedefs, structures, and compiler characteristics.
90
91dnl Note: Avoid using AC_C_BIGENDIAN because it does not
92dnl work in a cross compile.
93AC_C_BIGENDIAN_CROSS
94
95AC_C_CONST
96AC_TYPE_SIZE_T
97AC_CHECK_FUNCS(memmove bcopy)
98
99dnl Only needed for xmlwf:
100AC_CHECK_HEADERS(fcntl.h unistd.h)
101AC_TYPE_OFF_T
102AC_FUNC_MMAP
103
104if test "$ac_cv_func_mmap_fixed_mapped" = "yes"; then
105    FILEMAP=unixfilemap
106else
107    FILEMAP=readfilemap
108fi
109AC_SUBST(FILEMAP)
110
111dnl Needed for the test support code; this was found at
112dnl http://lists.gnu.org/archive/html/bug-autoconf/2002-07/msg00028.html
113
114# AC_CPP_FUNC
115# ------------------ #
116# Checks to see if ANSI C99 CPP variable __func__ works.
117# If not, perhaps __FUNCTION__ works instead.
118# If not, we'll just define __func__ to "".
119AC_DEFUN([AC_CPP_FUNC],
120[AC_REQUIRE([AC_PROG_CC_STDC])dnl
121AC_CACHE_CHECK([for an ANSI C99-conforming __func__], ac_cv_cpp_func,
122[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
123[[char *foo = __func__;]])],
124  [ac_cv_cpp_func=yes],
125  [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
126[[char *foo = __FUNCTION__;]])],
127  [ac_cv_cpp_func=__FUNCTION__],
128  [ac_cv_cpp_func=no])])])
129if test $ac_cv_cpp_func = __FUNCTION__; then
130  AC_DEFINE(__func__,__FUNCTION__,
131            [Define to __FUNCTION__ or "" if `__func__' does not conform to
132ANSI C.])
133elif test $ac_cv_cpp_func = no; then
134  AC_DEFINE(__func__,"",
135            [Define to __FUNCTION__ or "" if `__func__' does not conform to
136ANSI C.])
137fi
138])# AC_CPP_FUNC
139
140AC_CPP_FUNC
141
142
143dnl Some basic configuration:
144AC_DEFINE([XML_NS], 1,
145          [Define to make XML Namespaces functionality available.])
146AC_DEFINE([XML_DTD], 1,
147          [Define to make parameter entity parsing functionality available.])
148AC_DEFINE([XML_CONTEXT_BYTES], 1024,
149          [Define to specify how much context to retain around the current parse point.])
150
151AC_CONFIG_FILES([Makefile expat.pc])
152AC_OUTPUT
153
154abs_srcdir="`cd $srcdir && pwd`"
155abs_builddir="`pwd`"
156if test "$abs_srcdir" != "$abs_builddir"; then
157  ${MAKE:-make} mkdir-init
158fi
159