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 2.52 or newer 14AC_PREREQ(2.52) 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 [1.95.x])) 29AC_INIT(expat, expat_version, expat-bugs@mail.libexpat.org) 30undefine([expat_version]) 31 32AC_CONFIG_SRCDIR(Makefile.in) 33AC_CONFIG_AUX_DIR(conftools) 34 35 36dnl 37dnl Increment LIBREVISION if source code has changed at all 38dnl 39dnl If the API has changed, increment LIBCURRENT and set LIBREVISION to 0 40dnl 41dnl If the API changes compatibly (i.e. simply adding a new function 42dnl without changing or removing earlier interfaces), then increment LIBAGE. 43dnl 44dnl If the API changes incompatibly set LIBAGE back to 0 45dnl 46 47LIBCURRENT=4 48LIBREVISION=0 49LIBAGE=4 50 51AC_CONFIG_HEADER(expat_config.h) 52 53sinclude(conftools/libtool.m4) 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_INSTALL 69 70if test "$GCC" = yes ; then 71 dnl 72 dnl Be careful about adding the -fexceptions option; some versions of 73 dnl GCC don't support it and it causes extra warnings that are only 74 dnl distracting; avoid. 75 dnl 76 OLDCFLAGS="$CFLAGS -Wall -Wmissing-prototypes -Wstrict-prototypes" 77 CFLAGS="$OLDCFLAGS -fexceptions" 78 AC_MSG_CHECKING(whether gcc accepts -fexceptions) 79 AC_TRY_COMPILE(,(void)1, 80 AC_MSG_RESULT(yes), 81 AC_MSG_RESULT(no); CFLAGS="$OLDCFLAGS") 82fi 83 84dnl Checks for header files. 85AC_HEADER_STDC 86AC_CHECK_HEADERS(fcntl.h unistd.h) 87 88dnl Checks for typedefs, structures, and compiler characteristics. 89 90dnl Note: Avoid using AC_C_BIGENDIAN because it does not 91dnl work in a cross compile. 92AC_C_BIGENDIAN_CROSS 93 94AC_C_CONST 95AC_TYPE_OFF_T 96AC_TYPE_SIZE_T 97 98dnl Checks for library functions. 99 100AC_FUNC_MEMCMP 101AC_FUNC_MMAP 102 103if test "$ac_cv_func_mmap_fixed_mapped" = "yes"; then 104 FILEMAP=unixfilemap 105else 106 FILEMAP=readfilemap 107fi 108AC_SUBST(FILEMAP) 109 110AC_CHECK_FUNCS(memmove bcopy) 111 112dnl some basic configuration 113AC_DEFINE([XML_NS], 1, 114 [Define to make XML Namespaces functionality available.]) 115AC_DEFINE([XML_DTD], 1, 116 [Define to make parameter entity parsing functionality available.]) 117AC_DEFINE([XML_CONTEXT_BYTES], 1024, 118 [Define to specify how much context to retain around the current parse point.]) 119 120AC_CONFIG_FILES(Makefile) 121AC_OUTPUT 122 123abs_srcdir="`cd $srcdir && pwd`" 124abs_builddir="`pwd`" 125if test "$abs_srcdir" != "$abs_builddir"; then 126 ${MAKE:-make} mkdir-init 127fi 128