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 1996-2011 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 MSVC,
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 # Code taken from libtool.m4's _LT_CC_BASENAME.
40 for cc_temp in $CC""; do
42 compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
43 distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
48 cc_basename=`echo "$cc_temp" | sed -e 's%^.*/%%'`
50 # Code taken from libtool.m4's _LT_COMPILER_PIC.
53 if test "$GCC" = yes; then
67 mingw* | cygwin* | pw32* | os2* | cegcc*)
69 hpux9* | hpux10* | hpux11*)
72 irix5* | irix6* | nonstopux*)
98 case `$CC -V 2>&1 | sed 5q` in
106 osf3* | osf4* | osf5*)
117 sysv4 | sysv4.2uw2* | sysv4.3*)
122 sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
133 # Code taken from libtool.m4's _LT_LINKER_SHLIBS.
135 hardcode_libdir_flag_spec=
136 hardcode_libdir_separator=
141 cygwin* | mingw* | pw32* | cegcc*)
142 # FIXME: the MSVC++ port hasn't been tested in a loooong time
143 # When not using gcc, we currently assume that we are using
144 # Microsoft Visual C++.
145 if test "$GCC" != yes; then
150 # we just hope/assume this is gcc and not c89 (= MSVC++)
159 if test "$with_gnu_ld" = yes; then
160 # Set some defaults for GNU ld with shared library support. These
161 # are reset later if shared libraries are not supported. Putting them
162 # here allows them to be overridden if necessary.
163 # Unlike libtool, we use -rpath here, not --rpath, since the documented
164 # option of GNU ld is called -rpath, not --rpath.
165 hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
168 # On AIX/PPC, the GNU linker is very broken
169 if test "$host_cpu" != ia64; then
174 hardcode_libdir_flag_spec='-L$libdir'
176 # Samuel A. Falvo II <kc5tja@dolphin.openprojects.net> reports
177 # that the semantics of dynamic libraries on AmigaOS, at least up
178 # to version 4, is to share data among multiple programs linked
179 # with the same dynamic library. Since this doesn't match the
180 # behavior of shared libraries on other platforms, we cannot use
185 if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
191 cygwin* | mingw* | pw32* | cegcc*)
192 # hardcode_libdir_flag_spec is actually meaningless, as there is
193 # no search path for DLLs.
194 hardcode_libdir_flag_spec='-L$libdir'
195 if $LD --help 2>&1 | grep 'auto-import' > /dev/null; then
203 hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
205 gnu* | linux* | k*bsd*-gnu)
206 if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
215 if $LD -v 2>&1 | grep 'BFD 2\.8' > /dev/null; then
217 elif $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
223 sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
224 case `$LD -v 2>&1` in
225 *\ [01].* | *\ 2.[0-9].* | *\ 2.1[0-5].*)
229 if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
230 hardcode_libdir_flag_spec='`test -z "$SCOABSPATH" && echo ${wl}-rpath,$libdir`'
241 if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
248 if test "$ld_shlibs" = no; then
249 hardcode_libdir_flag_spec=
254 # Note: this linker hardcodes the directories in LIBPATH if there
255 # are no directories specified by -L.
257 if test "$GCC" = yes; then
258 # Neither direct hardcoding nor static linking is supported with a
260 hardcode_direct=unsupported
264 if test "$host_cpu" = ia64; then
265 # On IA64, the linker does run time linking by default, so we don't
266 # have to do anything special.
267 aix_use_runtimelinking=no
269 aix_use_runtimelinking=no
270 # Test if we are trying to use run time linking or normal
271 # AIX style linking. If -brtl is somewhere in LDFLAGS, we
272 # need to do runtime linking.
273 case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*)
274 for ld_flag in $LDFLAGS; do
275 if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl"); then
276 aix_use_runtimelinking=yes
284 hardcode_libdir_separator=':'
285 if test "$GCC" = yes; then
286 case $host_os in aix4.[012]|aix4.[012].*)
287 collect2name=`${CC} -print-prog-name=collect2`
288 if test -f "$collect2name" && \
289 strings "$collect2name" | grep resolve_lib_name >/dev/null
291 # We have reworked collect2
294 # We have old collect2
295 hardcode_direct=unsupported
297 hardcode_libdir_flag_spec='-L$libdir'
298 hardcode_libdir_separator=
303 # Begin _LT_AC_SYS_LIBPATH_AIX.
304 echo 'int main () { return 0; }' > conftest.c
305 ${CC} ${LDFLAGS} conftest.c -o conftest
306 aix_libpath=`dump -H conftest 2>/dev/null | sed -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0 *\(.*\)$/\1/; p; }
308 if test -z "$aix_libpath"; then
309 aix_libpath=`dump -HX64 conftest 2>/dev/null | sed -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0 *\(.*\)$/\1/; p; }
312 if test -z "$aix_libpath"; then
313 aix_libpath="/usr/lib:/lib"
315 rm -f conftest.c conftest
316 # End _LT_AC_SYS_LIBPATH_AIX.
317 if test "$aix_use_runtimelinking" = yes; then
318 hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
320 if test "$host_cpu" = ia64; then
321 hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
323 hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:'"$aix_libpath"
328 hardcode_libdir_flag_spec='-L$libdir'
330 # see comment about different semantics on the GNU ld section
335 cygwin* | mingw* | pw32* | cegcc*)
336 # When not using gcc, we currently assume that we are using
337 # Microsoft Visual C++.
338 # hardcode_libdir_flag_spec is actually meaningless, as there is
339 # no search path for DLLs.
340 hardcode_libdir_flag_spec=' '
345 if test "$GCC" = yes ; then
358 hardcode_libdir_flag_spec='-L$libdir'
361 hardcode_libdir_flag_spec='-R$libdir'
368 freebsd* | dragonfly*)
369 hardcode_libdir_flag_spec='-R$libdir'
373 hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
374 hardcode_libdir_separator=:
376 # hardcode_minus_L: Not really in the search PATH,
377 # but as the default location of the library.
381 if test "$with_gnu_ld" = no; then
382 hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
383 hardcode_libdir_separator=:
385 # hardcode_minus_L: Not really in the search PATH,
386 # but as the default location of the library.
391 if test "$with_gnu_ld" = no; then
392 hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
393 hardcode_libdir_separator=:
400 # hardcode_minus_L: Not really in the search PATH,
401 # but as the default location of the library.
407 irix5* | irix6* | nonstopux*)
408 hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
409 hardcode_libdir_separator=:
412 hardcode_libdir_flag_spec='-R$libdir'
417 hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
418 hardcode_libdir_separator=:
421 if test -f /usr/libexec/ld.so; then
423 if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
424 hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
427 openbsd[01].* | openbsd2.[0-7] | openbsd2.[0-7].*)
428 hardcode_libdir_flag_spec='-R$libdir'
431 hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
440 hardcode_libdir_flag_spec='-L$libdir'
444 hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
445 hardcode_libdir_separator=:
448 if test "$GCC" = yes; then
449 hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
451 # Both cc and cxx compiler support -rpath directly
452 hardcode_libdir_flag_spec='-rpath $libdir'
454 hardcode_libdir_separator=:
457 hardcode_libdir_flag_spec='-R$libdir'
460 hardcode_libdir_flag_spec='-L$libdir'
467 hardcode_direct=yes # is this really true???
473 hardcode_direct=no #Motorola manual says yes, but my tests say they lie
480 if test -d /usr/nec; then
484 sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
486 sysv5* | sco3.2v5* | sco5v6*)
487 hardcode_libdir_flag_spec='`test -z "$SCOABSPATH" && echo ${wl}-R,$libdir`'
488 hardcode_libdir_separator=':'
491 hardcode_libdir_flag_spec='-L$libdir'
499 # Check dynamic linker characteristics
500 # Code taken from libtool.m4's _LT_SYS_DYNAMIC_LINKER.
501 # Unlike libtool.m4, here we don't care about _all_ names of the library, but
502 # only about the one the linker finds when passed -lNAME. This is the last
503 # element of library_names_spec in libtool.m4, or possibly two of them if the
504 # linker has special search rules.
505 library_names_spec= # the last element of library_names_spec in libtool.m4
506 libname_spec='lib$name'
509 library_names_spec='$libname.a'
512 library_names_spec='$libname$shrext'
515 library_names_spec='$libname.a'
518 library_names_spec='$libname$shrext'
521 library_names_spec='$libname$shrext'
523 cygwin* | mingw* | pw32* | cegcc*)
525 library_names_spec='$libname.dll.a $libname.lib'
529 library_names_spec='$libname$shrext'
532 library_names_spec='$libname$shrext'
534 freebsd* | dragonfly*)
537 library_names_spec='$libname$shrext$versuffix' ;;
539 library_names_spec='$libname$shrext' ;;
543 library_names_spec='$libname$shrext'
545 hpux9* | hpux10* | hpux11*)
557 library_names_spec='$libname$shrext'
560 library_names_spec='$libname$shrext'
562 irix5* | irix6* | nonstopux*)
563 library_names_spec='$libname$shrext'
570 *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ") libsuff= shlibsuff= ;;
571 *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ") libsuff=32 shlibsuff=N32 ;;
572 *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ") libsuff=64 shlibsuff=64 ;;
573 *) libsuff= shlibsuff= ;;
578 linux*oldld* | linux*aout* | linux*coff*)
581 library_names_spec='$libname$shrext'
584 library_names_spec='$libname$shrext'
587 library_names_spec='$libname$shrext'
590 library_names_spec='$libname$shrext'
593 library_names_spec='$libname$shrext'
596 library_names_spec='$libname$shrext$versuffix'
601 library_names_spec='$libname.a'
603 osf3* | osf4* | osf5*)
604 library_names_spec='$libname$shrext'
609 library_names_spec='$libname$shrext'
612 library_names_spec='$libname$shrext$versuffix'
615 library_names_spec='$libname$shrext'
618 library_names_spec='$libname$shrext'
620 sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
621 library_names_spec='$libname$shrext'
624 library_names_spec='$libname$shrext'
628 sed_quote_subst='s/\(["`$\\]\)/\\\1/g'
629 escaped_wl=`echo "X$wl" | sed -e 's/^X//' -e "$sed_quote_subst"`
630 shlibext=`echo "$shrext" | sed -e 's,^\.,,'`
631 escaped_libname_spec=`echo "X$libname_spec" | sed -e 's/^X//' -e "$sed_quote_subst"`
632 escaped_library_names_spec=`echo "X$library_names_spec" | sed -e 's/^X//' -e "$sed_quote_subst"`
633 escaped_hardcode_libdir_flag_spec=`echo "X$hardcode_libdir_flag_spec" | sed -e 's/^X//' -e "$sed_quote_subst"`
635 LC_ALL=C sed -e 's/^\([a-zA-Z0-9_]*\)=/acl_cv_\1=/' <<EOF
637 # How to pass a linker flag through the compiler.
640 # Static library suffix (normally "a").
643 # Shared library suffix (normally "so").
646 # Format of library name prefix.
647 libname_spec="$escaped_libname_spec"
649 # Library names that the linker finds when passed -lNAME.
650 library_names_spec="$escaped_library_names_spec"
652 # Flag to hardcode \$libdir into a binary during linking.
653 # This must work even if \$libdir does not exist.
654 hardcode_libdir_flag_spec="$escaped_hardcode_libdir_flag_spec"
656 # Whether we need a single -rpath flag with a separated argument.
657 hardcode_libdir_separator="$hardcode_libdir_separator"
659 # Set to yes if using DIR/libNAME.so during linking hardcodes DIR into the
661 hardcode_direct="$hardcode_direct"
663 # Set to yes if using the -LDIR flag during linking hardcodes DIR into the
665 hardcode_minus_L="$hardcode_minus_L"