m4/ax_boost_regex.m4

   1 # ===========================================================================
   2 #             http://autoconf-archive.cryp.to/ax_boost_regex.html
   3 # ===========================================================================
   4 #
   5 # SYNOPSIS
   6 #
   7 #   AX_BOOST_REGEX
   8 #
   9 # DESCRIPTION
  10 #
  11 #   Test for Regex library from the Boost C++ libraries. The macro requires
  12 #   a preceding call to AX_BOOST_BASE. Further documentation is available at
  13 #   <http://randspringer.de/boost/index.html>.
  14 #
  15 #   This macro calls:
  16 #
  17 #     AC_SUBST(BOOST_REGEX_LIB)
  18 #
  19 #   And sets:
  20 #
  21 #     HAVE_BOOST_REGEX
  22 #
  23 # LAST MODIFICATION
  24 #
  25 #   2008-04-12
  26 #
  27 # COPYLEFT
  28 #
  29 #   Copyright (c) 2008 Thomas Porschberg <thomas@randspringer.de>
  30 #   Copyright (c) 2008 Michael Tindal
  31 #
  32 #   Copying and distribution of this file, with or without modification, are
  33 #   permitted in any medium without royalty provided the copyright notice
  34 #   and this notice are preserved.
  35
  36 AC_DEFUN([AX_BOOST_REGEX],
  37 [
  38         AC_ARG_WITH([boost-regex],
  39         AS_HELP_STRING([--with-boost-regex@<:@=special-lib@:>@],
  40                    [use the Regex library from boost - it is possible to specify a certain library for the linker
  41                         e.g. --with-boost-regex=boost_regex-gcc-mt-d-1_33_1 ]),
  42         [
  43         if test "$withval" = "no"; then
  44                         want_boost="no"
  45         elif test "$withval" = "yes"; then
  46             want_boost="yes"
  47             ax_boost_user_regex_lib=""
  48         else
  49                     want_boost="yes"
  50                 ax_boost_user_regex_lib="$withval"
  51                 fi
  52         ],
  53         [want_boost="yes"]
  54         )
  55
  56         if test "x$want_boost" = "xyes"; then
  57         AC_REQUIRE([AC_PROG_CC])
  58                 CPPFLAGS_SAVED="$CPPFLAGS"
  59                 CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
  60                 export CPPFLAGS
  61
  62                 LDFLAGS_SAVED="$LDFLAGS"
  63                 LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"
  64                 export LDFLAGS
  65
  66         AC_CACHE_CHECK(whether the Boost::Regex library is available,
  67                                            ax_cv_boost_regex,
  68         [AC_LANG_PUSH([C++])
  69                          AC_COMPILE_IFELSE(AC_LANG_PROGRAM([[@%:@include <boost/regex.hpp>
  70                                                                                                 ]],
  71                                    [[boost::regex r(); return 0;]]),
  72                    ax_cv_boost_regex=yes, ax_cv_boost_regex=no)
  73          AC_LANG_POP([C++])
  74                 ])
  75                 if test "x$ax_cv_boost_regex" = "xyes"; then
  76                         AC_DEFINE(HAVE_BOOST_REGEX,,[define if the Boost::Regex library is available])
  77             BOOSTLIBDIR=`echo $BOOST_LDFLAGS | sed -e 's/@<:@^\/@:>@*//'`
  78             if test "x$ax_boost_user_regex_lib" = "x"; then
  79                 for libextension in `ls $BOOSTLIBDIR/libboost_regex*.{so,a}* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^lib\(boost_regex.*\)\.so.*$;\1;' -e 's;^lib\(boost_regex.*\)\.a*$;\1;'` ; do
  80                      ax_lib=${libextension}
  81                                     AC_CHECK_LIB($ax_lib, exit,
  82                                  [BOOST_REGEX_LIB="-l$ax_lib"; AC_SUBST(BOOST_REGEX_LIB) link_regex="yes"; break],
  83                                  [link_regex="no"])
  84                                 done
  85                 if test "x$link_regex" != "xyes"; then
  86                 for libextension in `ls $BOOSTLIBDIR/boost_regex*.{dll,a}* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^\(boost_regex.*\)\.dll.*$;\1;' -e 's;^\(boost_regex.*\)\.a*$;\1;'` ; do
  87                      ax_lib=${libextension}
  88                                     AC_CHECK_LIB($ax_lib, exit,
  89                                  [BOOST_REGEX_LIB="-l$ax_lib"; AC_SUBST(BOOST_REGEX_LIB) link_regex="yes"; break],
  90                                  [link_regex="no"])
  91                                 done
  92                 fi
  93
  94             else
  95                for ax_lib in $ax_boost_user_regex_lib boost_regex-$ax_boost_user_regex_lib; do
  96                                       AC_CHECK_LIB($ax_lib, main,
  97                                    [BOOST_REGEX_LIB="-l$ax_lib"; AC_SUBST(BOOST_REGEX_LIB) link_regex="yes"; break],
  98                                    [link_regex="no"])
  99                done
 100             fi
 101                         if test "x$link_regex" != "xyes"; then
 102                                 AC_MSG_ERROR(Could not link against $ax_lib !)
 103                         fi
 104                 fi
 105
 106                 CPPFLAGS="$CPPFLAGS_SAVED"
 107         LDFLAGS="$LDFLAGS_SAVED"
 108         fi
 109 ])
 110