From 16b1cff29bedc0dd4f0ef378f5d1360b2bb3b233 Mon Sep 17 00:00:00 2001 From: Valient Gough Date: Tue, 3 Dec 2013 06:50:52 +0000 Subject: [PATCH] update boost m4 macros git-svn-id: http://encfs.googlecode.com/svn/branches/1.x@135 db9cf616-1c43-0410-9cb8-a902689de0d6 --- m4/ax_boost_base.m4 | 323 +++++++++++++++++++---------------- m4/ax_boost_filesystem.m4 | 6 +- m4/ax_boost_serialization.m4 | 6 +- m4/ax_boost_system.m4 | 6 +- 4 files changed, 189 insertions(+), 152 deletions(-) diff --git a/m4/ax_boost_base.m4 b/m4/ax_boost_base.m4 index 2e5afd0..57d14fe 100644 --- a/m4/ax_boost_base.m4 +++ b/m4/ax_boost_base.m4 @@ -1,10 +1,10 @@ # =========================================================================== -# http://autoconf-archive.cryp.to/ax_boost_base.html +# http://www.gnu.org/software/autoconf-archive/ax_boost_base.html # =========================================================================== # # SYNOPSIS # -# AX_BOOST_BASE([MINIMUM-VERSION]) +# AX_BOOST_BASE([MINIMUM-VERSION], [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) # # DESCRIPTION # @@ -23,41 +23,45 @@ # # HAVE_BOOST # -# LAST MODIFICATION -# -# 2008-04-12 -# -# COPYLEFT +# LICENSE # # Copyright (c) 2008 Thomas Porschberg +# Copyright (c) 2009 Peter Adolphs # # 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. +# and this notice are preserved. This file is offered as-is, without any +# warranty. + +#serial 21 AC_DEFUN([AX_BOOST_BASE], [ AC_ARG_WITH([boost], - AS_HELP_STRING([--with-boost@<:@=DIR@:>@], [use boost (default is yes) - it is possible to specify the root directory for boost (optional)]), - [ + [AS_HELP_STRING([--with-boost@<:@=ARG@:>@], + [use Boost library from a standard location (ARG=yes), + from the specified location (ARG=), + or disable it (ARG=no) + @<:@ARG=yes@:>@ ])], + [ if test "$withval" = "no"; then - want_boost="no" + want_boost="no" elif test "$withval" = "yes"; then want_boost="yes" ac_boost_path="" else - want_boost="yes" + want_boost="yes" ac_boost_path="$withval" - fi + fi ], [want_boost="yes"]) AC_ARG_WITH([boost-libdir], AS_HELP_STRING([--with-boost-libdir=LIB_DIR], - [Force given directory for boost libraries. Note that this will overwrite library path detection, so use this parameter only if default library detection fails and you know exactly where your boost libraries are located.]), + [Force given directory for boost libraries. Note that this will override library path detection, so use this parameter only if default library detection fails and you know exactly where your boost libraries are located.]), [ - if test -d $withval + if test -d "$withval" then ac_boost_lib_path="$withval" else @@ -68,33 +72,54 @@ AC_ARG_WITH([boost-libdir], ) if test "x$want_boost" = "xyes"; then - boost_lib_version_req=ifelse([$1], ,1.20.0,$1) - boost_lib_version_req_shorten=`expr $boost_lib_version_req : '\([[0-9]]*\.[[0-9]]*\)'` - boost_lib_version_req_major=`expr $boost_lib_version_req : '\([[0-9]]*\)'` - boost_lib_version_req_minor=`expr $boost_lib_version_req : '[[0-9]]*\.\([[0-9]]*\)'` - boost_lib_version_req_sub_minor=`expr $boost_lib_version_req : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'` - if test "x$boost_lib_version_req_sub_minor" = "x" ; then - boost_lib_version_req_sub_minor="0" - fi - WANT_BOOST_VERSION=`expr $boost_lib_version_req_major \* 100000 \+ $boost_lib_version_req_minor \* 100 \+ $boost_lib_version_req_sub_minor` - AC_MSG_CHECKING(for boostlib >= $boost_lib_version_req) - succeeded=no + boost_lib_version_req=ifelse([$1], ,1.20.0,$1) + boost_lib_version_req_shorten=`expr $boost_lib_version_req : '\([[0-9]]*\.[[0-9]]*\)'` + boost_lib_version_req_major=`expr $boost_lib_version_req : '\([[0-9]]*\)'` + boost_lib_version_req_minor=`expr $boost_lib_version_req : '[[0-9]]*\.\([[0-9]]*\)'` + boost_lib_version_req_sub_minor=`expr $boost_lib_version_req : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'` + if test "x$boost_lib_version_req_sub_minor" = "x" ; then + boost_lib_version_req_sub_minor="0" + fi + WANT_BOOST_VERSION=`expr $boost_lib_version_req_major \* 100000 \+ $boost_lib_version_req_minor \* 100 \+ $boost_lib_version_req_sub_minor` + AC_MSG_CHECKING(for boostlib >= $boost_lib_version_req) + succeeded=no - dnl first we check the system location for boost libraries - dnl this location ist chosen if boost libraries are installed with the --layout=system option - dnl or if you install boost with RPM - if test "$ac_boost_path" != ""; then - BOOST_LDFLAGS="-L$ac_boost_path/lib" - BOOST_CPPFLAGS="-I$ac_boost_path/include" - else - for ac_boost_path_tmp in /usr /usr/local /opt /opt/local ; do - if test -d "$ac_boost_path_tmp/include/boost" && test -r "$ac_boost_path_tmp/include/boost"; then - BOOST_LDFLAGS="-L$ac_boost_path_tmp/lib" - BOOST_CPPFLAGS="-I$ac_boost_path_tmp/include" - break; - fi - done - fi + dnl On 64-bit systems check for system libraries in both lib64 and lib. + dnl The former is specified by FHS, but e.g. Debian does not adhere to + dnl this (as it rises problems for generic multi-arch support). + dnl The last entry in the list is chosen by default when no libraries + dnl are found, e.g. when only header-only libraries are installed! + libsubdirs="lib" + ax_arch=`uname -m` + case $ax_arch in + x86_64|ppc64|s390x|sparc64|aarch64) + libsubdirs="lib64 lib lib64" + ;; + esac + + dnl first we check the system location for boost libraries + dnl this location ist chosen if boost libraries are installed with the --layout=system option + dnl or if you install boost with RPM + if test "$ac_boost_path" != ""; then + BOOST_CPPFLAGS="-I$ac_boost_path/include" + for ac_boost_path_tmp in $libsubdirs; do + if test -d "$ac_boost_path"/"$ac_boost_path_tmp" ; then + BOOST_LDFLAGS="-L$ac_boost_path/$ac_boost_path_tmp" + break + fi + done + elif test "$cross_compiling" != yes; then + for ac_boost_path_tmp in /usr /usr/local /opt /opt/local ; do + if test -d "$ac_boost_path_tmp/include/boost" && test -r "$ac_boost_path_tmp/include/boost"; then + for libsubdir in $libsubdirs ; do + if ls "$ac_boost_path_tmp/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi + done + BOOST_LDFLAGS="-L$ac_boost_path_tmp/$libsubdir" + BOOST_CPPFLAGS="-I$ac_boost_path_tmp/include" + break; + fi + done + fi dnl overwrite ld flags if we have required special directory with dnl --with-boost-libdir parameter @@ -102,122 +127,134 @@ if test "x$want_boost" = "xyes"; then BOOST_LDFLAGS="-L$ac_boost_lib_path" fi - CPPFLAGS_SAVED="$CPPFLAGS" - CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS" - export CPPFLAGS + CPPFLAGS_SAVED="$CPPFLAGS" + CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS" + export CPPFLAGS - LDFLAGS_SAVED="$LDFLAGS" - LDFLAGS="$LDFLAGS $BOOST_LDFLAGS" - export LDFLAGS + LDFLAGS_SAVED="$LDFLAGS" + LDFLAGS="$LDFLAGS $BOOST_LDFLAGS" + export LDFLAGS - AC_LANG_PUSH(C++) - AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ - @%:@include - ]], [[ - #if BOOST_VERSION >= $WANT_BOOST_VERSION - // Everything is okay - #else - # error Boost version is too old - #endif - ]])],[ + AC_REQUIRE([AC_PROG_CXX]) + AC_LANG_PUSH(C++) + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ + @%:@include + ]], [[ + #if BOOST_VERSION >= $WANT_BOOST_VERSION + // Everything is okay + #else + # error Boost version is too old + #endif + ]])],[ AC_MSG_RESULT(yes) - succeeded=yes - found_system=yes - ],[ - ]) - AC_LANG_POP([C++]) + succeeded=yes + found_system=yes + ],[ + ]) + AC_LANG_POP([C++]) - dnl if we found no boost with system layout we search for boost libraries - dnl built and installed without the --layout=system option or for a staged(not installed) version - if test "x$succeeded" != "xyes"; then - _version=0 - if test "$ac_boost_path" != ""; then - if test -d "$ac_boost_path" && test -r "$ac_boost_path"; then - for i in `ls -d $ac_boost_path/include/boost-* 2>/dev/null`; do - _version_tmp=`echo $i | sed "s#$ac_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'` - V_CHECK=`expr $_version_tmp \> $_version` - if test "$V_CHECK" = "1" ; then - _version=$_version_tmp - fi - VERSION_UNDERSCORE=`echo $_version | sed 's/\./_/'` - BOOST_CPPFLAGS="-I$ac_boost_path/include/boost-$VERSION_UNDERSCORE" - done - fi - else - for ac_boost_path in /usr /usr/local /opt /opt/local ; do - if test -d "$ac_boost_path" && test -r "$ac_boost_path"; then - for i in `ls -d $ac_boost_path/include/boost-* 2>/dev/null`; do - _version_tmp=`echo $i | sed "s#$ac_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'` - V_CHECK=`expr $_version_tmp \> $_version` - if test "$V_CHECK" = "1" ; then - _version=$_version_tmp - best_path=$ac_boost_path - fi - done - fi - done + dnl if we found no boost with system layout we search for boost libraries + dnl built and installed without the --layout=system option or for a staged(not installed) version + if test "x$succeeded" != "xyes"; then + _version=0 + if test "$ac_boost_path" != ""; then + if test -d "$ac_boost_path" && test -r "$ac_boost_path"; then + for i in `ls -d $ac_boost_path/include/boost-* 2>/dev/null`; do + _version_tmp=`echo $i | sed "s#$ac_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'` + V_CHECK=`expr $_version_tmp \> $_version` + if test "$V_CHECK" = "1" ; then + _version=$_version_tmp + fi + VERSION_UNDERSCORE=`echo $_version | sed 's/\./_/'` + BOOST_CPPFLAGS="-I$ac_boost_path/include/boost-$VERSION_UNDERSCORE" + done + fi + else + if test "$cross_compiling" != yes; then + for ac_boost_path in /usr /usr/local /opt /opt/local ; do + if test -d "$ac_boost_path" && test -r "$ac_boost_path"; then + for i in `ls -d $ac_boost_path/include/boost-* 2>/dev/null`; do + _version_tmp=`echo $i | sed "s#$ac_boost_path##" | sed 's/\/include\/boost-//' | sed 's/_/./'` + V_CHECK=`expr $_version_tmp \> $_version` + if test "$V_CHECK" = "1" ; then + _version=$_version_tmp + best_path=$ac_boost_path + fi + done + fi + done - VERSION_UNDERSCORE=`echo $_version | sed 's/\./_/'` - BOOST_CPPFLAGS="-I$best_path/include/boost-$VERSION_UNDERSCORE" - if test "$ac_boost_lib_path" = "" - then - BOOST_LDFLAGS="-L$best_path/lib" + VERSION_UNDERSCORE=`echo $_version | sed 's/\./_/'` + BOOST_CPPFLAGS="-I$best_path/include/boost-$VERSION_UNDERSCORE" + if test "$ac_boost_lib_path" = ""; then + for libsubdir in $libsubdirs ; do + if ls "$best_path/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi + done + BOOST_LDFLAGS="-L$best_path/$libsubdir" + fi fi - if test "x$BOOST_ROOT" != "x"; then - if test -d "$BOOST_ROOT" && test -r "$BOOST_ROOT" && test -d "$BOOST_ROOT/stage/lib" && test -r "$BOOST_ROOT/stage/lib"; then - version_dir=`expr //$BOOST_ROOT : '.*/\(.*\)'` - stage_version=`echo $version_dir | sed 's/boost_//' | sed 's/_/./g'` - stage_version_shorten=`expr $stage_version : '\([[0-9]]*\.[[0-9]]*\)'` - V_CHECK=`expr $stage_version_shorten \>\= $_version` + if test "x$BOOST_ROOT" != "x"; then + for libsubdir in $libsubdirs ; do + if ls "$BOOST_ROOT/stage/$libsubdir/libboost_"* >/dev/null 2>&1 ; then break; fi + done + if test -d "$BOOST_ROOT" && test -r "$BOOST_ROOT" && test -d "$BOOST_ROOT/stage/$libsubdir" && test -r "$BOOST_ROOT/stage/$libsubdir"; then + version_dir=`expr //$BOOST_ROOT : '.*/\(.*\)'` + stage_version=`echo $version_dir | sed 's/boost_//' | sed 's/_/./g'` + stage_version_shorten=`expr $stage_version : '\([[0-9]]*\.[[0-9]]*\)'` + V_CHECK=`expr $stage_version_shorten \>\= $_version` if test "$V_CHECK" = "1" -a "$ac_boost_lib_path" = "" ; then - AC_MSG_NOTICE(We will use a staged boost library from $BOOST_ROOT) - BOOST_CPPFLAGS="-I$BOOST_ROOT" - BOOST_LDFLAGS="-L$BOOST_ROOT/stage/lib" - fi - fi - fi - fi + AC_MSG_NOTICE(We will use a staged boost library from $BOOST_ROOT) + BOOST_CPPFLAGS="-I$BOOST_ROOT" + BOOST_LDFLAGS="-L$BOOST_ROOT/stage/$libsubdir" + fi + fi + fi + fi - CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS" - export CPPFLAGS - LDFLAGS="$LDFLAGS $BOOST_LDFLAGS" - export LDFLAGS + CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS" + export CPPFLAGS + LDFLAGS="$LDFLAGS $BOOST_LDFLAGS" + export LDFLAGS - AC_LANG_PUSH(C++) - AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ - @%:@include - ]], [[ - #if BOOST_VERSION >= $WANT_BOOST_VERSION - // Everything is okay - #else - # error Boost version is too old - #endif - ]])],[ - AC_MSG_RESULT(yes) - succeeded=yes - found_system=yes - ],[ - ]) - AC_LANG_POP([C++]) - fi + AC_LANG_PUSH(C++) + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ + @%:@include + ]], [[ + #if BOOST_VERSION >= $WANT_BOOST_VERSION + // Everything is okay + #else + # error Boost version is too old + #endif + ]])],[ + AC_MSG_RESULT(yes) + succeeded=yes + found_system=yes + ],[ + ]) + AC_LANG_POP([C++]) + fi - if test "$succeeded" != "yes" ; then - if test "$_version" = "0" ; then - AC_MSG_ERROR([[We could not detect the boost libraries (version $boost_lib_version_req_shorten or higher). If you have a staged boost library (still not installed) please specify \$BOOST_ROOT in your environment and do not give a PATH to --with-boost option. If you are sure you have boost installed, then check your version number looking in . See http://randspringer.de/boost for more documentation.]]) - else - AC_MSG_NOTICE([Your boost libraries seems to old (version $_version).]) - fi - else - AC_SUBST(BOOST_CPPFLAGS) - AC_SUBST(BOOST_LDFLAGS) - AC_DEFINE(HAVE_BOOST,,[define if the Boost library is available]) - fi + if test "$succeeded" != "yes" ; then + if test "$_version" = "0" ; then + AC_MSG_NOTICE([[We could not detect the boost libraries (version $boost_lib_version_req_shorten or higher). If you have a staged boost library (still not installed) please specify \$BOOST_ROOT in your environment and do not give a PATH to --with-boost option. If you are sure you have boost installed, then check your version number looking in . See http://randspringer.de/boost for more documentation.]]) + else + AC_MSG_NOTICE([Your boost libraries seems to old (version $_version).]) + fi + # execute ACTION-IF-NOT-FOUND (if present): + ifelse([$3], , :, [$3]) + else + AC_SUBST(BOOST_CPPFLAGS) + AC_SUBST(BOOST_LDFLAGS) + AC_DEFINE(HAVE_BOOST,,[define if the Boost library is available]) + # execute ACTION-IF-FOUND (if present): + ifelse([$2], , :, [$2]) + fi - CPPFLAGS="$CPPFLAGS_SAVED" - LDFLAGS="$LDFLAGS_SAVED" + CPPFLAGS="$CPPFLAGS_SAVED" + LDFLAGS="$LDFLAGS_SAVED" fi ]) diff --git a/m4/ax_boost_filesystem.m4 b/m4/ax_boost_filesystem.m4 index 18df8f4..f162163 100644 --- a/m4/ax_boost_filesystem.m4 +++ b/m4/ax_boost_filesystem.m4 @@ -31,7 +31,7 @@ # and this notice are preserved. This file is offered as-is, without any # warranty. -#serial 22 +#serial 26 AC_DEFUN([AX_BOOST_FILESYSTEM], [ @@ -81,14 +81,14 @@ AC_DEFUN([AX_BOOST_FILESYSTEM], 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 + for libextension in `ls -r $BOOSTLIBDIR/libboost_filesystem* 2>/dev/null | sed 's,.*/lib,,' | sed 's,\..*,,'` ; do ax_lib=${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 + for libextension in `ls -r $BOOSTLIBDIR/boost_filesystem* 2>/dev/null | sed 's,.*/,,' | sed -e 's,\..*,,'` ; do ax_lib=${libextension} AC_CHECK_LIB($ax_lib, exit, [BOOST_FILESYSTEM_LIB="-l$ax_lib"; AC_SUBST(BOOST_FILESYSTEM_LIB) link_filesystem="yes"; break], diff --git a/m4/ax_boost_serialization.m4 b/m4/ax_boost_serialization.m4 index 47e955a..37f3294 100644 --- a/m4/ax_boost_serialization.m4 +++ b/m4/ax_boost_serialization.m4 @@ -29,7 +29,7 @@ # and this notice are preserved. This file is offered as-is, without any # warranty. -#serial 18 +#serial 21 AC_DEFUN([AX_BOOST_SERIALIZATION], [ @@ -80,14 +80,14 @@ AC_DEFUN([AX_BOOST_SERIALIZATION], AC_DEFINE(HAVE_BOOST_SERIALIZATION,,[define if the Boost::Serialization library is available]) BOOSTLIBDIR=`echo $BOOST_LDFLAGS | sed -e 's/@<:@^\/@:>@*//'` if test "x$ax_boost_user_serialization_lib" = "x"; then - for libextension in `ls $BOOSTLIBDIR/libboost_serialization*.so* $BOOSTLIBDIR/libboost_serialization*.a* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^lib\(boost_serialization.*\)\.so.*$;\1;' -e 's;^lib\(boost_serialization.*\)\.a*$;\1;'` ; do + for libextension in `ls $BOOSTLIBDIR/libboost_serialization*.so* $BOOSTLIBDIR/libboost_serialization*.dylib* $BOOSTLIBDIR/libboost_serialization*.a* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^lib\(boost_serialization.*\)\.so.*$;\1;' -e 's;^lib\(boost_serialization.*\)\.dylib.*$;\1;' -e 's;^lib\(boost_serialization.*\)\.a*$;\1;'` ; do ax_lib=${libextension} AC_CHECK_LIB($ax_lib, exit, [BOOST_SERIALIZATION_LIB="-l$ax_lib"; AC_SUBST(BOOST_SERIALIZATION_LIB) link_serialization="yes"; break], [link_serialization="no"]) done if test "x$link_serialization" != "xyes"; then - for libextension in `ls $BOOSTLIBDIR/boost_serialization*.{dll,a}* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^\(boost_serialization.*\)\.dll.*$;\1;' -e 's;^\(boost_serialization.*\)\.a*$;\1;'` ; do + for libextension in `ls $BOOSTLIBDIR/boost_serialization*.dll* $BOOSTLIBDIR/boost_serialization*.a* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^\(boost_serialization.*\)\.dll.*$;\1;' -e 's;^\(boost_serialization.*\)\.a.*$;\1;'` ; do ax_lib=${libextension} AC_CHECK_LIB($ax_lib, exit, [BOOST_SERIALIZATION_LIB="-l$ax_lib"; AC_SUBST(BOOST_SERIALIZATION_LIB) link_serialization="yes"; break], diff --git a/m4/ax_boost_system.m4 b/m4/ax_boost_system.m4 index 7fbf6d3..c4c4555 100644 --- a/m4/ax_boost_system.m4 +++ b/m4/ax_boost_system.m4 @@ -31,7 +31,7 @@ # and this notice are preserved. This file is offered as-is, without any # warranty. -#serial 14 +#serial 17 AC_DEFUN([AX_BOOST_SYSTEM], [ @@ -83,14 +83,14 @@ AC_DEFUN([AX_BOOST_SYSTEM], LDFLAGS_SAVE=$LDFLAGS if test "x$ax_boost_user_system_lib" = "x"; then - for libextension in `ls $BOOSTLIBDIR/libboost_system*.so* $BOOSTLIBDIR/libboost_system*.a* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^lib\(boost_system.*\)\.so.*$;\1;' -e 's;^lib\(boost_system.*\)\.a*$;\1;'` ; do + for libextension in `ls -r $BOOSTLIBDIR/libboost_system* 2>/dev/null | sed 's,.*/lib,,' | sed 's,\..*,,'` ; do ax_lib=${libextension} AC_CHECK_LIB($ax_lib, exit, [BOOST_SYSTEM_LIB="-l$ax_lib"; AC_SUBST(BOOST_SYSTEM_LIB) link_system="yes"; break], [link_system="no"]) done if test "x$link_system" != "xyes"; then - for libextension in `ls $BOOSTLIBDIR/boost_system*.{dll,a}* 2>/dev/null | sed 's,.*/,,' | sed -e 's;^\(boost_system.*\)\.dll.*$;\1;' -e 's;^\(boost_system.*\)\.a*$;\1;'` ; do + for libextension in `ls -r $BOOSTLIBDIR/boost_system* 2>/dev/null | sed 's,.*/,,' | sed -e 's,\..*,,'` ; do ax_lib=${libextension} AC_CHECK_LIB($ax_lib, exit, [BOOST_SYSTEM_LIB="-l$ax_lib"; AC_SUBST(BOOST_SYSTEM_LIB) link_system="yes"; break],