diff --git a/ChangeLog b/ChangeLog index 96224bb3..1771e5a8 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,16 @@ +2001-04-19 Dan McNichol + + * libtool.m4: Build standard shared libraries on AIX POWER + more like AIX does, with a shared object archived into lib.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. + 2001-04-18 Alexandre Oliva * TODO: Add -L- flag. diff --git a/NEWS b/NEWS index 6ea8a947..9d02eb0b 100644 --- a/NEWS +++ b/NEWS @@ -1,5 +1,8 @@ NEWS - list of user-visible changes between releases of GNU Libtool +New in 1.4: 2001-04-??; CVS version 1.3e, Libtool team: +* Support for aix5*. + New in 1.3d: 2001-04-02; CVS version 1.3c, Libtool team: * ltconfig is no more. Generation of libtool happens directly from the configure file. diff --git a/libtool.m4 b/libtool.m4 index c10271bf..0750785a 100644 --- a/libtool.m4 +++ b/libtool.m4 @@ -847,9 +847,15 @@ AC_CACHE_VAL(lt_cv_prog_cc_pic, else # PORTME Check for PIC flags for the system compiler. case $host_os in - aix3* | aix4*) - # All AIX code is PIC. - lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp' + aix3* | aix4* | aix5*) + # All AIX code is PIC. + if test "$host_cpu" = ia64; then + # AIX 5 now supports IA64 processor + lt_cv_prog_cc_static='-Bstatic' + lt_cv_prog_cc_wl='-Wl,' + else + lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp' + fi ;; hpux9* | hpux10* | hpux11*) @@ -1192,8 +1198,9 @@ if test "$with_gnu_ld" = yes; then # See if GNU ld supports shared libraries. case $host_os in - aix3* | aix4*) + aix3* | aix4* | aix5*) # On AIX, the GNU linker is very broken + # Note:Check GNU linker on AIX 5-IA64 when/if it becomes available. ld_shlibs=no cat <&2 @@ -1392,8 +1399,14 @@ else fi ;; - aix4*) - hardcode_libdir_flag_spec='${wl}-b ${wl}nolibpath ${wl}-b ${wl}libpath:$libdir:/usr/lib:/lib' + aix4* | aix5*) + # When large executables or shared objects are built, AIX ld can + # have problems creating the table of contents. If linking a library + # or program results in "error TOC overflow" add -mminimal-toc to + # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not + # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS. + + archive_cmds='' hardcode_libdir_separator=':' if test "$GCC" = yes; then collect2name=`${CC} -print-prog-name=collect2` @@ -1403,34 +1416,67 @@ else # We have reworked collect2 hardcode_direct=yes else - # We have old collect2 - hardcode_direct=unsupported - # It fails to find uninstalled libraries when the uninstalled - # path is not listed in the libpath. Setting hardcode_minus_L - # to unsupported forces relinking - hardcode_minus_L=yes - hardcode_libdir_flag_spec='-L$libdir' - hardcode_libdir_separator= + # We have old collect2 + hardcode_direct=unsupported + # It fails to find uninstalled libraries when the uninstalled + # path is not listed in the libpath. Setting hardcode_minus_L + # to unsupported forces relinking + hardcode_minus_L=yes + hardcode_libdir_flag_spec='-L$libdir' + hardcode_libdir_separator= fi shared_flag='-shared' else - shared_flag='${wl}-bM:SRE' + if test "$host_cpu" = ia64; then + shared_flag='-G' + else + shared_flag='${wl}-bM:SRE' + fi hardcode_direct=yes fi - allow_undefined_flag=' ${wl}-berok' - archive_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bexpall ${wl}-bnoentry${allow_undefined_flag}' - archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bE:$export_symbols ${wl}-bnoentry${allow_undefined_flag}' - case $host_os in [aix4.[01]|aix4.[01].*]) - # According to Greg Wooledge, -bexpall is only supported from AIX 4.2 on - always_export_symbols=yes ;; - esac - # We don't want to build shared libraries on unknown CPU types. - case $host_cpu in - powerpc | rs6000) ;; - *) ld_shlibs=no ;; - esac - ;; + if test "$host_cpu" = ia64; then + # On IA64, the linker does run time linking by default, so we don't + # have to do anything special. + aix_use_runtimelinking=no + exp_sym_flag='-Bexport' + no_entry_flag="" + else + # Test if we are trying to use run time linking, or normal AIX style linking. + # If -brtl is somewhere in LDFLAGS, we need to do run time linking. + aix_use_runtimelinking=no + for ld_flag in $LDFLAGS; do + if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl" ); then + aix_use_runtimelinking=yes + break + fi + done + exp_sym_flag='-bexport' + no_entry_flag='-bnoentry' + fi + # It seems that -bexpall can do strange things, so it is better to + # generate a list of symbols to export. + always_export_symbols=yes + if test "$aix_use_runtimelinking" = yes; then + hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib' + allow_undefined_flag=' -Wl,-G' + archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols" + else + if test "$host_cpu" = ia64; then + hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib' + allow_undefined_flag="-znodefs" + 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" + else + hardcode_libdir_flag_spec='${wl}-bnolibpath ${wl}-blibpath:$libdir:/usr/lib:/lib' + # Warning - without using the other run time loading flags, -berok will + # link without error, but may produce a broken library. + allow_undefined_flag='${wl}-berok" + # This is a bit strange, but is similar to how AIX traditionally builds + # it's shared libraries. + 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' + fi + fi + ;; amigaos*) 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 $output_objdir && a2ixlibrary -32)' @@ -1777,31 +1823,45 @@ aix3*) soname_spec='${libname}${release}.so$major' ;; -aix4*) +aix4* | aix5*) version_type=linux - # AIX has no versioning support, so currently we can not hardcode correct - # soname into executable. Probably we can add versioning support to - # collect2, so additional links can be useful in future. - # We preserve .a as extension for shared libraries though AIX4.2 - # and later linker supports .so - library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.a' - shlibpath_var=LIBPATH - case $host_os in -[ aix4 | aix4.[01] | aix4.[01].*)] - if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)' - echo ' yes ' - echo '#endif'; } | ${CC} -E - | grep yes > /dev/null; then - : + if test "$host_cpu" = ia64; then + # AIX 5 supports IA64 + library_names_spec='${libname}${release}.so$major ${libname}${release}.so$versuffix $libname.so' + shlibpath_var=LD_LIBRARY_PATH + else + # With GCC up to 2.95.x, collect2 would create an import file + # for dependence libraries. The import file would start with + # the line `#! .'. This would cause the generated library to + # depend on `.', always an invalid library. This was fixed in + # development snapshots of GCC prior to 3.0. + case $host_os in + [ aix4 | aix4.[01] | aix4.[01].*)] + if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)' + echo ' yes ' + echo '#endif'; } | ${CC} -E - | grep yes > /dev/null; then + : + else + can_build_shared=no + fi + ;; + esac + # AIX (on Power*) has no versioning support, so currently we can not hardcode correct + # soname into executable. Probably we can add versioning support to + # collect2, so additional links can be useful in future. + if test "$aix_use_runtimelinking" = yes; then + # If using run time linking (on AIX 4.2 or later) use lib.so instead of + # lib.a to let people know that these are not typical AIX shared libraries. + library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so' else - # With GCC up to 2.95.x, collect2 would create an import file - # for dependence libraries. The import file would start with - # the line `#! .'. This would cause the generated library to - # depend on `.', always an invalid library. This was fixed in - # development snapshots of GCC prior to 3.0. - can_build_shared=no + # We preserve .a as extension for shared libraries through AIX4.2 + # and later when we are not doing run time linking. + library_names_spec='${libname}${release}.a $libname.a' + soname_spec='${libname}${release}.so$major' fi - ;; - esac + shlibpath_var=LIBPATH + deplibs_check_method=pass_all + fi ;; amigaos*) @@ -3052,7 +3112,7 @@ lt_cv_deplibs_check_method='unknown' # whether `pass_all' will *always* work, you probably want this one. case $host_os in -aix4*) +aix4* | aix5*) lt_cv_deplibs_check_method=pass_all ;;