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# ===========================================================================

#    http://www.gnu.org/software/autoconf-archive/ax_boost_filesystem.html

# ===========================================================================

#

# SYNOPSIS

#

#   AX_BOOST_FILESYSTEM

#

# DESCRIPTION

#

#   Test for Filesystem library from the Boost C++ libraries. The macro

#   requires a preceding call to AX_BOOST_BASE. Further documentation is

#   available at <http://randspringer.de/boost/index.html>.

#

#   This macro calls:

#

#     AC_SUBST(BOOST_FILESYSTEM_LIB)

#

#   And sets:

#

#     HAVE_BOOST_FILESYSTEM

#

# LICENSE

#

#   Copyright (c) 2009 Thomas Porschberg <thomas@randspringer.de>

#   Copyright (c) 2009 Michael Tindal

#   Copyright (c) 2009 Roman Rybalko <libtorrent@romanr.info>

#

#   Copying and distribution of this file, with or without modification, are

#   permitted in any medium without royalty provided the copyright notice

#   and this notice are preserved. This file is offered as-is, without any

#   warranty.

 

#serial 22

 

AC_DEFUN([AX_BOOST_FILESYSTEM],

[

        AC_ARG_WITH([boost-filesystem],

        AS_HELP_STRING([--with-boost-filesystem@<:@=special-lib@:>@],

                   [use the Filesystem library from boost - it is possible to specify a certain library for the linker

                        e.g. --with-boost-filesystem=boost_filesystem-gcc-mt ]),

        [

        if test "$withval" = "no"; then

                        want_boost="no"

        elif test "$withval" = "yes"; then

            want_boost="yes"

            ax_boost_user_filesystem_lib=""

        else

                    want_boost="yes"

                ax_boost_user_filesystem_lib="$withval"

                fi

        ],

        [want_boost="yes"]

        )

 

        if test "x$want_boost" = "xyes"; then

        AC_REQUIRE([AC_PROG_CC])

                CPPFLAGS_SAVED="$CPPFLAGS"

                CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"

                export CPPFLAGS

 

                LDFLAGS_SAVED="$LDFLAGS"

                LDFLAGS="$LDFLAGS $BOOST_LDFLAGS"

                export LDFLAGS

 

                LIBS_SAVED=$LIBS

                LIBS="$LIBS $BOOST_SYSTEM_LIB"

                export LIBS

 

        AC_CACHE_CHECK(whether the Boost::Filesystem library is available,

                                           ax_cv_boost_filesystem,

        [AC_LANG_PUSH([C++])

         AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[@%:@include <boost/filesystem/path.hpp>]],

                                   [[using namespace boost::filesystem;

                                   path my_path( "foo/bar/data.txt" );

                                   return 0;]])],

                                               ax_cv_boost_filesystem=yes, ax_cv_boost_filesystem=no)

         AC_LANG_POP([C++])

                ])

                if test "x$ax_cv_boost_filesystem" = "xyes"; then

                        AC_DEFINE(HAVE_BOOST_FILESYSTEM,,[define if the Boost::Filesystem library is available])

            BOOSTLIBDIR=`echo $BOOST_LDFLAGS | sed -e 's/@<:@^\/@:>@*//'`

            if test "x$ax_boost_user_filesystem_lib" = "x"; then

                for libextension in `ls $BOOSTLIBDIR/libboost_filesystem*.so* $BOOSTLIBDIR/libboost_filesystem*.dylib* $BOOSTLIBDIR/libboost_filesystem*.a* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^lib\(boost_filesystem.*\)\.so.*$;\1;' -e 's;^lib\(boost_filesystem.*\)\.a*$;\1;' -e 's;^lib\(boost_filesystem.*\)\.dylib$;\1;'` ; do

                     ax_lib=${libextension}

                                    AC_CHECK_LIB($ax_lib, exit,

                                 [BOOST_FILESYSTEM_LIB="-l$ax_lib"; AC_SUBST(BOOST_FILESYSTEM_LIB) link_filesystem="yes"; break],

                                 [link_filesystem="no"])

                                done

                if test "x$link_filesystem" != "xyes"; then

                for libextension in `ls $BOOSTLIBDIR/boost_filesystem*.{dll,a}* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^\(boost_filesystem.*\)\.dll.*$;\1;' -e 's;^\(boost_filesystem.*\)\.a*$;\1;'` ; do

                     ax_lib=${libextension}

                                    AC_CHECK_LIB($ax_lib, exit,

                                 [BOOST_FILESYSTEM_LIB="-l$ax_lib"; AC_SUBST(BOOST_FILESYSTEM_LIB) link_filesystem="yes"; break],

                                 [link_filesystem="no"])

                                done

                    fi

            else

               for ax_lib in $ax_boost_user_filesystem_lib boost_filesystem-$ax_boost_user_filesystem_lib; do

                                      AC_CHECK_LIB($ax_lib, exit,

                                   [BOOST_FILESYSTEM_LIB="-l$ax_lib"; AC_SUBST(BOOST_FILESYSTEM_LIB) link_filesystem="yes"; break],

                                   [link_filesystem="no"])

                  done

 

            fi

            if test "x$ax_lib" = "x"; then

                AC_MSG_ERROR(Could not find a version of the library!)

            fi

                        if test "x$link_filesystem" != "xyes"; then

                                AC_MSG_ERROR(Could not link against $ax_lib !)

                        fi

                fi

 

                CPPFLAGS="$CPPFLAGS_SAVED"

                LDFLAGS="$LDFLAGS_SAVED"

                LIBS="$LIBS_SAVED"

        fi

])