Annotation of embedaddon/expat/configure.in, revision 1.1.1.2

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: 
1.1.1.2 ! misho      13: dnl Ensure that Expat is configured with autoconf 2.58 or newer
        !            14: AC_PREREQ(2.58)
1.1       misho      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)],
1.1.1.2 ! misho      28:                               [2.1.x]))
1.1       misho      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)
1.1.1.2 ! misho      34: AC_CONFIG_MACRO_DIR([m4])
1.1       misho      35: 
                     36: 
                     37: dnl
                     38: dnl Increment LIBREVISION if source code has changed at all
                     39: dnl
                     40: dnl If the API has changed, increment LIBCURRENT and set LIBREVISION to 0
                     41: dnl
                     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.
                     44: dnl 
                     45: dnl If the API changes incompatibly set LIBAGE back to 0
                     46: dnl
                     47: 
1.1.1.2 ! misho      48: LIBCURRENT=7
        !            49: LIBREVISION=0
        !            50: LIBAGE=6
1.1       misho      51: 
                     52: AC_CONFIG_HEADER(expat_config.h)
                     53: 
                     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
1.1.1.2 ! misho      65: AC_PROG_CXX
1.1       misho      66: AC_PROG_INSTALL
                     67: 
                     68: if test "$GCC" = yes ; then
                     69:     dnl
                     70:     dnl Be careful about adding the -fexceptions option; some versions of
                     71:     dnl GCC don't support it and it causes extra warnings that are only
                     72:     dnl distracting; avoid.
                     73:     dnl
                     74:     OLDCFLAGS="$CFLAGS -Wall -Wmissing-prototypes -Wstrict-prototypes"
                     75:     CFLAGS="$OLDCFLAGS -fexceptions"
                     76:     AC_MSG_CHECKING(whether $CC accepts -fexceptions)
                     77:     AC_TRY_LINK( , ,
                     78:                    AC_MSG_RESULT(yes),
                     79:                    AC_MSG_RESULT(no); CFLAGS="$OLDCFLAGS")
                     80:     CXXFLAGS=`echo "$CFLAGS" | sed 's/ -Wmissing-prototypes -Wstrict-prototypes//'`
                     81: fi
                     82: 
                     83: dnl Checks for header files.
                     84: AC_HEADER_STDC
                     85: 
                     86: dnl Checks for typedefs, structures, and compiler characteristics.
                     87: 
                     88: dnl Note: Avoid using AC_C_BIGENDIAN because it does not
                     89: dnl work in a cross compile.
                     90: AC_C_BIGENDIAN_CROSS
                     91: 
                     92: AC_C_CONST
                     93: AC_TYPE_SIZE_T
                     94: AC_CHECK_FUNCS(memmove bcopy)
                     95: 
                     96: dnl Only needed for xmlwf:
                     97: AC_CHECK_HEADERS(fcntl.h unistd.h)
                     98: AC_TYPE_OFF_T
                     99: AC_FUNC_MMAP
                    100: 
                    101: if test "$ac_cv_func_mmap_fixed_mapped" = "yes"; then
                    102:     FILEMAP=unixfilemap
                    103: else
                    104:     FILEMAP=readfilemap
                    105: fi
                    106: AC_SUBST(FILEMAP)
                    107: 
                    108: dnl Needed for the test support code; this was found at
                    109: dnl http://lists.gnu.org/archive/html/bug-autoconf/2002-07/msg00028.html
                    110: 
                    111: # AC_CPP_FUNC
                    112: # ------------------ #
                    113: # Checks to see if ANSI C99 CPP variable __func__ works.
                    114: # If not, perhaps __FUNCTION__ works instead. 
                    115: # If not, we'll just define __func__ to "". 
                    116: AC_DEFUN([AC_CPP_FUNC],
                    117: [AC_REQUIRE([AC_PROG_CC_STDC])dnl
                    118: AC_CACHE_CHECK([for an ANSI C99-conforming __func__], ac_cv_cpp_func,
                    119: [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
                    120: [[char *foo = __func__;]])],
                    121:   [ac_cv_cpp_func=yes], 
                    122:   [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
                    123: [[char *foo = __FUNCTION__;]])],
                    124:   [ac_cv_cpp_func=__FUNCTION__], 
                    125:   [ac_cv_cpp_func=no])])])
                    126: if test $ac_cv_cpp_func = __FUNCTION__; then
                    127:   AC_DEFINE(__func__,__FUNCTION__,
                    128:             [Define to __FUNCTION__ or "" if `__func__' does not conform to 
                    129: ANSI C.])
                    130: elif test $ac_cv_cpp_func = no; then
                    131:   AC_DEFINE(__func__,"",
                    132:             [Define to __FUNCTION__ or "" if `__func__' does not conform to 
                    133: ANSI C.])
                    134: fi
                    135: ])# AC_CPP_FUNC
                    136: 
                    137: AC_CPP_FUNC
                    138: 
                    139: 
                    140: dnl Some basic configuration:
                    141: AC_DEFINE([XML_NS], 1,
                    142:           [Define to make XML Namespaces functionality available.])
                    143: AC_DEFINE([XML_DTD], 1,
                    144:           [Define to make parameter entity parsing functionality available.])
                    145: AC_DEFINE([XML_CONTEXT_BYTES], 1024,
                    146:           [Define to specify how much context to retain around the current parse point.])
                    147: 
1.1.1.2 ! misho     148: AC_CONFIG_FILES([Makefile expat.pc])
1.1       misho     149: AC_OUTPUT
                    150: 
                    151: abs_srcdir="`cd $srcdir && pwd`"
                    152: abs_builddir="`pwd`"
                    153: if test "$abs_srcdir" != "$abs_builddir"; then
                    154:   make mkdir-init
                    155: fi

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