2 # Output a system dependent set of variables, describing how to set the
3 # run time search path of shared libraries in an executable.
5 # Copyright 1996-2005 Free Software Foundation, Inc.
6 # Taken from GNU libtool, 2001
7 # Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
9 # This file is free software; the Free Software Foundation gives
10 # unlimited permission to copy and/or distribute it, with or without
11 # modifications, as long as this notice is preserved.
13 # The first argument passed to this file is the canonical host specification,
14 # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
16 # CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
17 # The environment variables CC, GCC, LDFLAGS, LD, with_gnu_ld
18 # should be set by the caller.
20 # The set of defined variables is at the end of this script.
23 # - On IRIX 6.5 with CC="cc", the run time search patch must not be longer
24 # than 256 bytes, otherwise the compiler driver will dump core. The only
25 # known workaround is to choose shorter directory names for the build
26 # directory and/or the installation directory.
28 # All known linkers require a `.a' archive for static linking (except M$VC,
29 # which needs '.lib').
34 host_cpu=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
35 host_vendor=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
36 host_os=`echo "$host" | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
38 cc_basename=`echo "$CC" | sed -e 's%^.*/%%'`
40 # Code taken from libtool.m4's AC_LIBTOOL_PROG_COMPILER_PIC.
43 if test "$GCC" = yes; then
51 case "$cc_basename" in
57 mingw* | pw32* | os2*)
59 hpux9* | hpux10* | hpux11*)
62 irix5* | irix6* | nonstopux*)
83 osf3* | osf4* | osf5*)
94 sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
107 # Code taken from libtool.m4's AC_LIBTOOL_PROG_LD_SHLIBS.
109 hardcode_libdir_flag_spec=
110 hardcode_libdir_separator=
115 cygwin* | mingw* | pw32*)
116 # FIXME: the MSVC++ port hasn't been tested in a loooong time
117 # When not using gcc, we currently assume that we are using
118 # Microsoft Visual C++.
119 if test "$GCC" != yes; then
129 if test "$with_gnu_ld" = yes; then
131 aix3* | aix4* | aix5*)
132 # On AIX/PPC, the GNU linker is very broken
133 if test "$host_cpu" != ia64; then
138 hardcode_libdir_flag_spec='-L$libdir'
140 # Samuel A. Falvo II <kc5tja@dolphin.openprojects.net> reports
141 # that the semantics of dynamic libraries on AmigaOS, at least up
142 # to version 4, is to share data among multiple programs linked
143 # with the same dynamic library. Since this doesn't match the
144 # behavior of shared libraries on other platforms, we cannot use
149 if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
155 cygwin* | mingw* | pw32*)
156 # hardcode_libdir_flag_spec is actually meaningless, as there is
157 # no search path for DLLs.
158 hardcode_libdir_flag_spec='-L$libdir'
159 if $LD --help 2>&1 | grep 'auto-import' > /dev/null; then
168 if $LD -v 2>&1 | grep 'BFD 2\.8' > /dev/null; then
170 elif $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
180 if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
187 if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
194 if test "$ld_shlibs" = yes; then
195 # Unlike libtool, we use -rpath here, not --rpath, since the documented
196 # option of GNU ld is called -rpath, not --rpath.
197 hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
202 # Note: this linker hardcodes the directories in LIBPATH if there
203 # are no directories specified by -L.
205 if test "$GCC" = yes; then
206 # Neither direct hardcoding nor static linking is supported with a
208 hardcode_direct=unsupported
212 if test "$host_cpu" = ia64; then
213 # On IA64, the linker does run time linking by default, so we don't
214 # have to do anything special.
215 aix_use_runtimelinking=no
217 aix_use_runtimelinking=no
218 # Test if we are trying to use run time linking or normal
219 # AIX style linking. If -brtl is somewhere in LDFLAGS, we
220 # need to do runtime linking.
221 case $host_os in aix4.[23]|aix4.[23].*|aix5*)
222 for ld_flag in $LDFLAGS; do
223 if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
224 aix_use_runtimelinking=yes
231 hardcode_libdir_separator=':'
232 if test "$GCC" = yes; then
233 case $host_os in aix4.[012]|aix4.[012].*)
234 collect2name=`${CC} -print-prog-name=collect2`
235 if test -f "$collect2name" && \
236 strings "$collect2name" | grep resolve_lib_name >/dev/null
238 # We have reworked collect2
241 # We have old collect2
242 hardcode_direct=unsupported
244 hardcode_libdir_flag_spec='-L$libdir'
245 hardcode_libdir_separator=
249 # Begin _LT_AC_SYS_LIBPATH_AIX.
250 echo 'int main () { return 0; }' > conftest.c
251 ${CC} ${LDFLAGS} conftest.c -o conftest
252 aix_libpath=`dump -H conftest 2>/dev/null | sed -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0 *\(.*\)$/\1/; p; }
254 if test -z "$aix_libpath"; then
255 aix_libpath=`dump -HX64 conftest 2>/dev/null | sed -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0 *\(.*\)$/\1/; p; }
258 if test -z "$aix_libpath"; then
259 aix_libpath="/usr/lib:/lib"
261 rm -f conftest.c conftest
262 # End _LT_AC_SYS_LIBPATH_AIX.
263 if test "$aix_use_runtimelinking" = yes; then
264 hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
266 if test "$host_cpu" = ia64; then
267 hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
269 hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
274 hardcode_libdir_flag_spec='-L$libdir'
276 # see comment about different semantics on the GNU ld section
281 cygwin* | mingw* | pw32*)
282 # When not using gcc, we currently assume that we are using
283 # Microsoft Visual C++.
284 # hardcode_libdir_flag_spec is actually meaningless, as there is
285 # no search path for DLLs.
286 hardcode_libdir_flag_spec=' '
291 if test "$GCC" = yes ; then
294 case "$cc_basename" in
304 hardcode_libdir_flag_spec='-L$libdir'
310 hardcode_libdir_flag_spec='-R$libdir'
317 freebsd* | kfreebsd*-gnu | dragonfly*)
318 hardcode_libdir_flag_spec='-R$libdir'
322 hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
323 hardcode_libdir_separator=:
325 # hardcode_minus_L: Not really in the search PATH,
326 # but as the default location of the library.
330 if test "$with_gnu_ld" = no; then
333 hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
334 hardcode_libdir_separator=:
338 hardcode_libdir_flag_spec='-L$libdir'
340 # hardcode_minus_L: Not really in the search PATH,
341 # but as the default location of the library.
345 hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
346 hardcode_libdir_separator=:
348 # hardcode_minus_L: Not really in the search PATH,
349 # but as the default location of the library.
355 irix5* | irix6* | nonstopux*)
356 hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
357 hardcode_libdir_separator=:
360 hardcode_libdir_flag_spec='-R$libdir'
365 hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
366 hardcode_libdir_separator=:
370 if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
371 hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
374 openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*)
375 hardcode_libdir_flag_spec='-R$libdir'
378 hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
384 hardcode_libdir_flag_spec='-L$libdir'
388 hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
389 hardcode_libdir_separator=:
392 if test "$GCC" = yes; then
393 hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
395 # Both cc and cxx compiler support -rpath directly
396 hardcode_libdir_flag_spec='-rpath $libdir'
398 hardcode_libdir_separator=:
403 hardcode_libdir_flag_spec='-R$libdir'
406 hardcode_libdir_flag_spec='-L$libdir'
413 hardcode_direct=yes # is this really true???
419 hardcode_direct=no #Motorola manual says yes, but my tests say they lie
426 if test -d /usr/nec; then
434 sysv5OpenUNIX8* | sysv5UnixWare7* | sysv5uw[78]* | unixware7*)
437 hardcode_libdir_flag_spec=
440 hardcode_libdir_flag_spec='-L$libdir'
448 # Check dynamic linker characteristics
449 # Code taken from libtool.m4's AC_LIBTOOL_SYS_DYNAMIC_LINKER.
450 libname_spec='lib$name'
462 cygwin* | mingw* | pw32*)
478 hpux9* | hpux10* | hpux11*)
491 irix5* | irix6* | nonstopux*)
498 *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") libsuff= shlibsuff= ;;
499 *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") libsuff=32 shlibsuff=N32 ;;
500 *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") libsuff=64 shlibsuff=64 ;;
501 *) libsuff= shlibsuff= ;;
506 linux*oldld* | linux*aout* | linux*coff*)
524 osf3* | osf4* | osf5*)
532 sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
540 sed_quote_subst='s/\(["`$\\]\)/\\\1/g'
541 escaped_wl=`echo "X$wl" | sed -e 's/^X//' -e "$sed_quote_subst"`
542 shlibext=`echo "$shrext" | sed -e 's,^\.,,'`
543 escaped_hardcode_libdir_flag_spec=`echo "X$hardcode_libdir_flag_spec" | sed -e 's/^X//' -e "$sed_quote_subst"`
545 LC_ALL=C sed -e 's/^\([a-zA-Z0-9_]*\)=/acl_cv_\1=/' <<EOF
547 # How to pass a linker flag through the compiler.
550 # Static library suffix (normally "a").
553 # Shared library suffix (normally "so").
556 # Flag to hardcode \$libdir into a binary during linking.
557 # This must work even if \$libdir does not exist.
558 hardcode_libdir_flag_spec="$escaped_hardcode_libdir_flag_spec"
560 # Whether we need a single -rpath flag with a separated argument.
561 hardcode_libdir_separator="$hardcode_libdir_separator"
563 # Set to yes if using DIR/libNAME.so during linking hardcodes DIR into the
565 hardcode_direct="$hardcode_direct"
567 # Set to yes if using the -LDIR flag during linking hardcodes DIR into the
569 hardcode_minus_L="$hardcode_minus_L"