src/expat/configure.in

   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                               [1.95.x]))
  29 AC_INIT(expat, expat_version, expat-bugs@mail.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=4
  48 LIBREVISION=0
  49 LIBAGE=4
  50
  51 AC_CONFIG_HEADER(expat_config.h)
  52
  53 sinclude(conftools/libtool.m4)
  54 sinclude(conftools/ac_c_bigendian_cross.m4)
  55
  56
  57 dnl Check for many C compilers (have to do this before libtool stuff)
  58 AC_BAKEFILE_PROG_CC
  59
  60 AC_LIBTOOL_WIN32_DLL
  61 AC_PROG_LIBTOOL
  62
  63 AC_SUBST(LIBCURRENT)
  64 AC_SUBST(LIBREVISION)
  65 AC_SUBST(LIBAGE)
  66
  67 dnl Checks for programs.
  68 AC_PROG_INSTALL
  69
  70 if 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")
  82 fi
  83
  84 dnl Checks for header files.
  85 AC_HEADER_STDC
  86 AC_CHECK_HEADERS(fcntl.h unistd.h)
  87
  88 dnl Checks for typedefs, structures, and compiler characteristics.
  89
  90 dnl Note: Avoid using AC_C_BIGENDIAN because it does not
  91 dnl work in a cross compile.
  92 AC_C_BIGENDIAN_CROSS
  93
  94 AC_C_CONST
  95 AC_TYPE_OFF_T
  96 AC_TYPE_SIZE_T
  97
  98 dnl Checks for library functions.
  99
 100 AC_FUNC_MEMCMP
 101 AC_FUNC_MMAP
 102
 103 if test "$ac_cv_func_mmap_fixed_mapped" = "yes"; then
 104     FILEMAP=unixfilemap
 105 else
 106     FILEMAP=readfilemap
 107 fi
 108 AC_SUBST(FILEMAP)
 109
 110 AC_CHECK_FUNCS(memmove bcopy)
 111
 112 dnl some basic configuration
 113 AC_DEFINE([XML_NS], 1,
 114           [Define to make XML Namespaces functionality available.])
 115 AC_DEFINE([XML_DTD], 1,
 116           [Define to make parameter entity parsing functionality available.])
 117 AC_DEFINE([XML_CONTEXT_BYTES], 1024,
 118           [Define to specify how much context to retain around the current parse point.])
 119
 120 AC_CONFIG_FILES(Makefile)
 121 AC_OUTPUT
 122
 123 abs_srcdir="`cd $srcdir && pwd`"
 124 abs_builddir="`pwd`"
 125 if test "$abs_srcdir" != "$abs_builddir"; then
 126   ${MAKE:-make} mkdir-init
 127 fi