Annotation of embedaddon/expat/configure.in, revision 1.1
1.1 ! misho 1: dnl configuration script for expat
! 2: dnl Process this file with autoconf to produce a configure script.
! 3: dnl
! 4: dnl Copyright 2000 Clark Cooper
! 5: dnl
! 6: dnl This file is part of EXPAT.
! 7: dnl
! 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.
! 11: dnl
! 12:
! 13: dnl Ensure that Expat is configured with autoconf 2.52 or newer
! 14: AC_PREREQ(2.52)
! 15:
! 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.
! 22: dnl
! 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)],
! 28: [2.0.x]))
! 29: AC_INIT(expat, expat_version, expat-bugs@libexpat.org)
! 30: undefine([expat_version])
! 31:
! 32: AC_CONFIG_SRCDIR(Makefile.in)
! 33: AC_CONFIG_AUX_DIR(conftools)
! 34:
! 35:
! 36: dnl
! 37: dnl Increment LIBREVISION if source code has changed at all
! 38: dnl
! 39: dnl If the API has changed, increment LIBCURRENT and set LIBREVISION to 0
! 40: dnl
! 41: dnl If the API changes compatibly (i.e. simply adding a new function
! 42: dnl without changing or removing earlier interfaces), then increment LIBAGE.
! 43: dnl
! 44: dnl If the API changes incompatibly set LIBAGE back to 0
! 45: dnl
! 46:
! 47: LIBCURRENT=6
! 48: LIBREVISION=2
! 49: LIBAGE=5
! 50:
! 51: AC_CONFIG_HEADER(expat_config.h)
! 52:
! 53: sinclude(conftools/libtool.m4)
! 54: sinclude(conftools/ac_c_bigendian_cross.m4)
! 55:
! 56: AC_LIBTOOL_WIN32_DLL
! 57: AC_PROG_LIBTOOL
! 58:
! 59: AC_SUBST(LIBCURRENT)
! 60: AC_SUBST(LIBREVISION)
! 61: AC_SUBST(LIBAGE)
! 62:
! 63: dnl Checks for programs.
! 64: AC_PROG_CC
! 65: AC_PROG_INSTALL
! 66:
! 67: if test "$GCC" = yes ; then
! 68: dnl
! 69: dnl Be careful about adding the -fexceptions option; some versions of
! 70: dnl GCC don't support it and it causes extra warnings that are only
! 71: dnl distracting; avoid.
! 72: dnl
! 73: OLDCFLAGS="$CFLAGS -Wall -Wmissing-prototypes -Wstrict-prototypes"
! 74: CFLAGS="$OLDCFLAGS -fexceptions"
! 75: AC_MSG_CHECKING(whether $CC accepts -fexceptions)
! 76: AC_TRY_LINK( , ,
! 77: AC_MSG_RESULT(yes),
! 78: AC_MSG_RESULT(no); CFLAGS="$OLDCFLAGS")
! 79: CXXFLAGS=`echo "$CFLAGS" | sed 's/ -Wmissing-prototypes -Wstrict-prototypes//'`
! 80: fi
! 81:
! 82: dnl Checks for header files.
! 83: AC_HEADER_STDC
! 84:
! 85: dnl Checks for typedefs, structures, and compiler characteristics.
! 86:
! 87: dnl Note: Avoid using AC_C_BIGENDIAN because it does not
! 88: dnl work in a cross compile.
! 89: AC_C_BIGENDIAN_CROSS
! 90:
! 91: AC_C_CONST
! 92: AC_TYPE_SIZE_T
! 93: AC_CHECK_FUNCS(memmove bcopy)
! 94:
! 95: dnl Only needed for xmlwf:
! 96: AC_CHECK_HEADERS(fcntl.h unistd.h)
! 97: AC_TYPE_OFF_T
! 98: AC_FUNC_MMAP
! 99:
! 100: if test "$ac_cv_func_mmap_fixed_mapped" = "yes"; then
! 101: FILEMAP=unixfilemap
! 102: else
! 103: FILEMAP=readfilemap
! 104: fi
! 105: AC_SUBST(FILEMAP)
! 106:
! 107: dnl Needed for the test support code; this was found at
! 108: dnl http://lists.gnu.org/archive/html/bug-autoconf/2002-07/msg00028.html
! 109:
! 110: # AC_CPP_FUNC
! 111: # ------------------ #
! 112: # Checks to see if ANSI C99 CPP variable __func__ works.
! 113: # If not, perhaps __FUNCTION__ works instead.
! 114: # If not, we'll just define __func__ to "".
! 115: AC_DEFUN([AC_CPP_FUNC],
! 116: [AC_REQUIRE([AC_PROG_CC_STDC])dnl
! 117: AC_CACHE_CHECK([for an ANSI C99-conforming __func__], ac_cv_cpp_func,
! 118: [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
! 119: [[char *foo = __func__;]])],
! 120: [ac_cv_cpp_func=yes],
! 121: [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
! 122: [[char *foo = __FUNCTION__;]])],
! 123: [ac_cv_cpp_func=__FUNCTION__],
! 124: [ac_cv_cpp_func=no])])])
! 125: if test $ac_cv_cpp_func = __FUNCTION__; then
! 126: AC_DEFINE(__func__,__FUNCTION__,
! 127: [Define to __FUNCTION__ or "" if `__func__' does not conform to
! 128: ANSI C.])
! 129: elif test $ac_cv_cpp_func = no; then
! 130: AC_DEFINE(__func__,"",
! 131: [Define to __FUNCTION__ or "" if `__func__' does not conform to
! 132: ANSI C.])
! 133: fi
! 134: ])# AC_CPP_FUNC
! 135:
! 136: AC_CPP_FUNC
! 137:
! 138:
! 139: dnl Some basic configuration:
! 140: AC_DEFINE([XML_NS], 1,
! 141: [Define to make XML Namespaces functionality available.])
! 142: AC_DEFINE([XML_DTD], 1,
! 143: [Define to make parameter entity parsing functionality available.])
! 144: AC_DEFINE([XML_CONTEXT_BYTES], 1024,
! 145: [Define to specify how much context to retain around the current parse point.])
! 146:
! 147: AC_CONFIG_FILES(Makefile)
! 148: AC_OUTPUT
! 149:
! 150: abs_srcdir="`cd $srcdir && pwd`"
! 151: abs_builddir="`pwd`"
! 152: if test "$abs_srcdir" != "$abs_builddir"; then
! 153: make mkdir-init
! 154: fi
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