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* libtool.m4: Build standard shared libraries on AIX POWER
more like AIX does, with a shared object archived into lib<xxx>.a. On AIX -bexpall flag does strange things... Don't use it. Fix quotes around -berok flag. Add support for AIX 5. Add support for run time linking on AIX POWER. (should work on AIX 4.2 and up). Turn this feature on by adding -brtl flag to LD_FLAGS. Add support for AIX on IA64. Note: AIX on IA64 uses a SYSV type linker. Add a comment telling what to do if the TOC starts getting too large on AIX. * NEWS: mention aix5 support.
This commit is contained in:
Dan McNichol
Gary V. Vaughan
parent
ff8e64ad84
commit
d9f83c0668
13
ChangeLog
13
ChangeLog
@ -1,3 +1,16 @@
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2001-04-19 Dan McNichol <mcnichol@austin.ibm.com>
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* libtool.m4: Build standard shared libraries on AIX POWER
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more like AIX does, with a shared object archived into lib<xxx>.a.
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On AIX -bexpall flag does strange things... Don't use it.
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Fix quotes around -berok flag. Add support for AIX 5.
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Add support for run time linking on AIX POWER. (should work
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on AIX 4.2 and up). Turn this feature on by adding -brtl flag
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to LD_FLAGS. Add support for AIX on IA64. Note: AIX on IA64
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uses a SYSV type linker. Add a comment telling what to do if the
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TOC starts getting too large on AIX.
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* NEWS: mention aix5 support.
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2001-04-18 Alexandre Oliva <aoliva@redhat.com>
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* TODO: Add -L- flag.
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3
NEWS
3
NEWS
@ -1,5 +1,8 @@
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NEWS - list of user-visible changes between releases of GNU Libtool
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New in 1.4: 2001-04-??; CVS version 1.3e, Libtool team:
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* Support for aix5*.
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New in 1.3d: 2001-04-02; CVS version 1.3c, Libtool team:
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* ltconfig is no more. Generation of libtool happens directly from
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the configure file.
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162
libtool.m4
vendored
162
libtool.m4
vendored
@ -847,9 +847,15 @@ AC_CACHE_VAL(lt_cv_prog_cc_pic,
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else
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# PORTME Check for PIC flags for the system compiler.
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case $host_os in
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aix3* | aix4*)
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# All AIX code is PIC.
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lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
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aix3* | aix4* | aix5*)
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# All AIX code is PIC.
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if test "$host_cpu" = ia64; then
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# AIX 5 now supports IA64 processor
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lt_cv_prog_cc_static='-Bstatic'
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lt_cv_prog_cc_wl='-Wl,'
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else
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lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
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fi
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;;
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hpux9* | hpux10* | hpux11*)
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@ -1192,8 +1198,9 @@ if test "$with_gnu_ld" = yes; then
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# See if GNU ld supports shared libraries.
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case $host_os in
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aix3* | aix4*)
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aix3* | aix4* | aix5*)
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# On AIX, the GNU linker is very broken
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# Note:Check GNU linker on AIX 5-IA64 when/if it becomes available.
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ld_shlibs=no
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cat <<EOF 1>&2
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@ -1392,8 +1399,14 @@ else
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fi
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;;
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aix4*)
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hardcode_libdir_flag_spec='${wl}-b ${wl}nolibpath ${wl}-b ${wl}libpath:$libdir:/usr/lib:/lib'
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aix4* | aix5*)
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# When large executables or shared objects are built, AIX ld can
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# have problems creating the table of contents. If linking a library
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# or program results in "error TOC overflow" add -mminimal-toc to
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# CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not
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# enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
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archive_cmds=''
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hardcode_libdir_separator=':'
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if test "$GCC" = yes; then
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collect2name=`${CC} -print-prog-name=collect2`
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@ -1403,34 +1416,67 @@ else
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# We have reworked collect2
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hardcode_direct=yes
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else
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# We have old collect2
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hardcode_direct=unsupported
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# It fails to find uninstalled libraries when the uninstalled
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# path is not listed in the libpath. Setting hardcode_minus_L
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# to unsupported forces relinking
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hardcode_minus_L=yes
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hardcode_libdir_flag_spec='-L$libdir'
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hardcode_libdir_separator=
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# We have old collect2
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hardcode_direct=unsupported
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# It fails to find uninstalled libraries when the uninstalled
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# path is not listed in the libpath. Setting hardcode_minus_L
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# to unsupported forces relinking
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hardcode_minus_L=yes
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hardcode_libdir_flag_spec='-L$libdir'
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hardcode_libdir_separator=
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fi
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shared_flag='-shared'
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else
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shared_flag='${wl}-bM:SRE'
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if test "$host_cpu" = ia64; then
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shared_flag='-G'
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else
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shared_flag='${wl}-bM:SRE'
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fi
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hardcode_direct=yes
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fi
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allow_undefined_flag=' ${wl}-berok'
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archive_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bexpall ${wl}-bnoentry${allow_undefined_flag}'
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archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bE:$export_symbols ${wl}-bnoentry${allow_undefined_flag}'
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case $host_os in [aix4.[01]|aix4.[01].*])
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# According to Greg Wooledge, -bexpall is only supported from AIX 4.2 on
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always_export_symbols=yes ;;
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esac
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# We don't want to build shared libraries on unknown CPU types.
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case $host_cpu in
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powerpc | rs6000) ;;
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*) ld_shlibs=no ;;
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esac
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;;
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if test "$host_cpu" = ia64; then
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# On IA64, the linker does run time linking by default, so we don't
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# have to do anything special.
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aix_use_runtimelinking=no
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exp_sym_flag='-Bexport'
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no_entry_flag=""
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else
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# Test if we are trying to use run time linking, or normal AIX style linking.
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# If -brtl is somewhere in LDFLAGS, we need to do run time linking.
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aix_use_runtimelinking=no
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for ld_flag in $LDFLAGS; do
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if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl" ); then
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aix_use_runtimelinking=yes
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break
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fi
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done
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exp_sym_flag='-bexport'
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no_entry_flag='-bnoentry'
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fi
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# It seems that -bexpall can do strange things, so it is better to
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# generate a list of symbols to export.
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always_export_symbols=yes
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if test "$aix_use_runtimelinking" = yes; then
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hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
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allow_undefined_flag=' -Wl,-G'
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archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"
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else
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if test "$host_cpu" = ia64; then
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hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
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allow_undefined_flag="-znodefs"
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archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname ${wl}-h$soname $libobjs $deplibs $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"
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else
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hardcode_libdir_flag_spec='${wl}-bnolibpath ${wl}-blibpath:$libdir:/usr/lib:/lib'
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# Warning - without using the other run time loading flags, -berok will
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# link without error, but may produce a broken library.
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allow_undefined_flag='${wl}-berok"
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# This is a bit strange, but is similar to how AIX traditionally builds
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# it's shared libraries.
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archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"' ~$AR -crlo $objdir/$libname$release.a $objdir/$soname'
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fi
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fi
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;;
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amigaos*)
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archive_cmds='$rm $output_objdir/a2ixlibrary.data~$echo "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$echo "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$echo "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$echo "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
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@ -1777,31 +1823,45 @@ aix3*)
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soname_spec='${libname}${release}.so$major'
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;;
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aix4*)
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aix4* | aix5*)
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version_type=linux
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# AIX has no versioning support, so currently we can not hardcode correct
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# soname into executable. Probably we can add versioning support to
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# collect2, so additional links can be useful in future.
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# We preserve .a as extension for shared libraries though AIX4.2
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# and later linker supports .so
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library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.a'
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shlibpath_var=LIBPATH
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case $host_os in
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[ aix4 | aix4.[01] | aix4.[01].*)]
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if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
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echo ' yes '
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echo '#endif'; } | ${CC} -E - | grep yes > /dev/null; then
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:
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if test "$host_cpu" = ia64; then
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# AIX 5 supports IA64
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library_names_spec='${libname}${release}.so$major ${libname}${release}.so$versuffix $libname.so'
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shlibpath_var=LD_LIBRARY_PATH
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else
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# With GCC up to 2.95.x, collect2 would create an import file
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# for dependence libraries. The import file would start with
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# the line `#! .'. This would cause the generated library to
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# depend on `.', always an invalid library. This was fixed in
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# development snapshots of GCC prior to 3.0.
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case $host_os in
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[ aix4 | aix4.[01] | aix4.[01].*)]
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if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
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echo ' yes '
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echo '#endif'; } | ${CC} -E - | grep yes > /dev/null; then
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:
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else
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can_build_shared=no
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fi
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;;
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esac
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# AIX (on Power*) has no versioning support, so currently we can not hardcode correct
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# soname into executable. Probably we can add versioning support to
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# collect2, so additional links can be useful in future.
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if test "$aix_use_runtimelinking" = yes; then
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# If using run time linking (on AIX 4.2 or later) use lib<name>.so instead of
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# lib<name>.a to let people know that these are not typical AIX shared libraries.
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library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
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else
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# With GCC up to 2.95.x, collect2 would create an import file
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# for dependence libraries. The import file would start with
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# the line `#! .'. This would cause the generated library to
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# depend on `.', always an invalid library. This was fixed in
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# development snapshots of GCC prior to 3.0.
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can_build_shared=no
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# We preserve .a as extension for shared libraries through AIX4.2
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# and later when we are not doing run time linking.
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library_names_spec='${libname}${release}.a $libname.a'
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soname_spec='${libname}${release}.so$major'
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fi
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;;
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esac
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shlibpath_var=LIBPATH
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deplibs_check_method=pass_all
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fi
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;;
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amigaos*)
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@ -3052,7 +3112,7 @@ lt_cv_deplibs_check_method='unknown'
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# whether `pass_all' will *always* work, you probably want this one.
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case $host_os in
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aix4*)
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aix4* | aix5*)
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lt_cv_deplibs_check_method=pass_all
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;;
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