X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Flib-prefix.m4;h=007aa0532e6dece7d69c55b2fe10e9c50751eebc;hb=639607db00b96f33b0e18afa27188456c6ccad0a;hp=5f297021c259848267eb3ac75004b77ffa8ac0f3;hpb=cbe703a10b786dd2fd595d65e668ece801a4e767;p=gnulib.git diff --git a/m4/lib-prefix.m4 b/m4/lib-prefix.m4 index 5f297021c..007aa0532 100644 --- a/m4/lib-prefix.m4 +++ b/m4/lib-prefix.m4 @@ -1,10 +1,8 @@ -# lib-prefix.m4 serial 2 (gettext-0.12) -dnl Copyright (C) 2001-2003 Free Software Foundation, Inc. -dnl This file is free software, distributed under the terms of the GNU -dnl General Public License. As a special exception to the GNU General -dnl Public License, this file may be distributed as part of a program -dnl that contains a configuration script generated by Autoconf, under -dnl the same distribution terms as the rest of that program. +# lib-prefix.m4 serial 7 (gettext-0.18) +dnl Copyright (C) 2001-2005, 2008-2012 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. dnl From Bruno Haible. @@ -13,7 +11,7 @@ dnl similar to AC_ARG_WITH in autoconf 2.52...2.57 except that is doesn't dnl require excessive bracketing. ifdef([AC_HELP_STRING], [AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[[$2]],[$3],[$4])])], -[AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[$2],[$3],[$4])])]) +[AC_DEFUN([AC_][LIB_ARG_WITH], [AC_ARG_WITH([$1],[$2],[$3],[$4])])]) dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed dnl to access previously installed libraries. The basic assumption is that @@ -26,6 +24,7 @@ AC_DEFUN([AC_LIB_PREFIX], AC_BEFORE([$0], [AC_LIB_LINKFLAGS]) AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) + AC_REQUIRE([AC_LIB_PREPARE_MULTILIB]) AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) dnl By default, look in $includedir and $libdir. use_additional=yes @@ -41,13 +40,13 @@ AC_DEFUN([AC_LIB_PREFIX], use_additional=no else if test "X$withval" = "X"; then - AC_LIB_WITH_FINAL_PREFIX([ - eval additional_includedir=\"$includedir\" - eval additional_libdir=\"$libdir\" - ]) + AC_LIB_WITH_FINAL_PREFIX([ + eval additional_includedir=\"$includedir\" + eval additional_libdir=\"$libdir\" + ]) else - additional_includedir="$withval/include" - additional_libdir="$withval/lib" + additional_includedir="$withval/include" + additional_libdir="$withval/$acl_libdirstem" fi fi ]) @@ -61,26 +60,26 @@ AC_DEFUN([AC_LIB_PREFIX], if test "X$additional_includedir" != "X/usr/include"; then haveit= for x in $CPPFLAGS; do - AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) - if test "X$x" = "X-I$additional_includedir"; then - haveit=yes - break - fi + AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) + if test "X$x" = "X-I$additional_includedir"; then + haveit=yes + break + fi done if test -z "$haveit"; then - if test "X$additional_includedir" = "X/usr/local/include"; then - if test -n "$GCC"; then - case $host_os in - linux*) haveit=yes;; - esac - fi - fi - if test -z "$haveit"; then - if test -d "$additional_includedir"; then - dnl Really add $additional_includedir to $CPPFLAGS. - CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir" - fi - fi + if test "X$additional_includedir" = "X/usr/local/include"; then + if test -n "$GCC"; then + case $host_os in + linux* | gnu* | k*bsd*-gnu) haveit=yes;; + esac + fi + fi + if test -z "$haveit"; then + if test -d "$additional_includedir"; then + dnl Really add $additional_includedir to $CPPFLAGS. + CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir" + fi + fi fi fi dnl Potentially add $additional_libdir to $LDFLAGS. @@ -89,29 +88,29 @@ AC_DEFUN([AC_LIB_PREFIX], dnl 2. if it's already present in $LDFLAGS, dnl 3. if it's /usr/local/lib and we are using GCC on Linux, dnl 4. if it doesn't exist as a directory. - if test "X$additional_libdir" != "X/usr/lib"; then + if test "X$additional_libdir" != "X/usr/$acl_libdirstem"; then haveit= for x in $LDFLAGS; do - AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) - if test "X$x" = "X-L$additional_libdir"; then - haveit=yes - break - fi + AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) + if test "X$x" = "X-L$additional_libdir"; then + haveit=yes + break + fi done if test -z "$haveit"; then - if test "X$additional_libdir" = "X/usr/local/lib"; then - if test -n "$GCC"; then - case $host_os in - linux*) haveit=yes;; - esac - fi - fi - if test -z "$haveit"; then - if test -d "$additional_libdir"; then - dnl Really add $additional_libdir to $LDFLAGS. - LDFLAGS="${LDFLAGS}${LDFLAGS:+ }-L$additional_libdir" - fi - fi + if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem"; then + if test -n "$GCC"; then + case $host_os in + linux*) haveit=yes;; + esac + fi + fi + if test -z "$haveit"; then + if test -d "$additional_libdir"; then + dnl Really add $additional_libdir to $LDFLAGS. + LDFLAGS="${LDFLAGS}${LDFLAGS:+ }-L$additional_libdir" + fi + fi fi fi fi @@ -153,3 +152,73 @@ AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX], exec_prefix="$acl_save_exec_prefix" prefix="$acl_save_prefix" ]) + +dnl AC_LIB_PREPARE_MULTILIB creates +dnl - a variable acl_libdirstem, containing the basename of the libdir, either +dnl "lib" or "lib64" or "lib/64", +dnl - a variable acl_libdirstem2, as a secondary possible value for +dnl acl_libdirstem, either the same as acl_libdirstem or "lib/sparcv9" or +dnl "lib/amd64". +AC_DEFUN([AC_LIB_PREPARE_MULTILIB], +[ + dnl There is no formal standard regarding lib and lib64. + dnl On glibc systems, the current practice is that on a system supporting + dnl 32-bit and 64-bit instruction sets or ABIs, 64-bit libraries go under + dnl $prefix/lib64 and 32-bit libraries go under $prefix/lib. We determine + dnl the compiler's default mode by looking at the compiler's library search + dnl path. If at least one of its elements ends in /lib64 or points to a + dnl directory whose absolute pathname ends in /lib64, we assume a 64-bit ABI. + dnl Otherwise we use the default, namely "lib". + dnl On Solaris systems, the current practice is that on a system supporting + dnl 32-bit and 64-bit instruction sets or ABIs, 64-bit libraries go under + dnl $prefix/lib/64 (which is a symlink to either $prefix/lib/sparcv9 or + dnl $prefix/lib/amd64) and 32-bit libraries go under $prefix/lib. + AC_REQUIRE([AC_CANONICAL_HOST]) + acl_libdirstem=lib + acl_libdirstem2= + case "$host_os" in + solaris*) + dnl See Solaris 10 Software Developer Collection > Solaris 64-bit Developer's Guide > The Development Environment + dnl . + dnl "Portable Makefiles should refer to any library directories using the 64 symbolic link." + dnl But we want to recognize the sparcv9 or amd64 subdirectory also if the + dnl symlink is missing, so we set acl_libdirstem2 too. + AC_CACHE_CHECK([for 64-bit host], [gl_cv_solaris_64bit], + [AC_EGREP_CPP([sixtyfour bits], [ +#ifdef _LP64 +sixtyfour bits +#endif + ], [gl_cv_solaris_64bit=yes], [gl_cv_solaris_64bit=no]) + ]) + if test $gl_cv_solaris_64bit = yes; then + acl_libdirstem=lib/64 + case "$host_cpu" in + sparc*) acl_libdirstem2=lib/sparcv9 ;; + i*86 | x86_64) acl_libdirstem2=lib/amd64 ;; + esac + fi + ;; + *) + searchpath=`(LC_ALL=C $CC -print-search-dirs) 2>/dev/null | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'` + if test -n "$searchpath"; then + acl_save_IFS="${IFS= }"; IFS=":" + for searchdir in $searchpath; do + if test -d "$searchdir"; then + case "$searchdir" in + */lib64/ | */lib64 ) acl_libdirstem=lib64 ;; + */../ | */.. ) + # Better ignore directories of this form. They are misleading. + ;; + *) searchdir=`cd "$searchdir" && pwd` + case "$searchdir" in + */lib64 ) acl_libdirstem=lib64 ;; + esac ;; + esac + fi + done + IFS="$acl_save_IFS" + fi + ;; + esac + test -n "$acl_libdirstem2" || acl_libdirstem2="$acl_libdirstem" +])