SCO/bugfix patch 7 of 10: Improve SCO platform support

[Kean Johnston]

Patch 7 of 10 attached ...

Rationale:

I like it when things work on my platform :)

2005-10-24  Kean Johnston  <address@hidden>

        * libtool.m4: Complete overhaul of SCO support.

Index: libtool.m4
===================================================================
RCS file: /cvsroot/libtool/libtool/Attic/libtool.m4,v
retrieving revision 1.314.2.115
diff -u -3 -p -r1.314.2.115 libtool.m4
--- libtool.m4  9 Oct 2005 06:26:21 -0000       1.314.2.115
+++ libtool.m4  30 Oct 2005 21:22:24 -0000
@@ -1623,13 +1635,6 @@ osf3* | osf4* | osf5*)
   sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
   ;;
 
-sco3.2v5*)
-  version_type=osf
-  soname_spec='${libname}${release}${shared_ext}$major'
-  library_names_spec='${libname}${release}${shared_ext}$versuffix 
${libname}${release}${shared_ext}$major $libname${shared_ext}'
-  shlibpath_var=LD_LIBRARY_PATH
-  ;;
-
 solaris*)
   version_type=linux
   need_lib_prefix=no
@@ -1655,7 +1660,7 @@ sunos4*)
   need_version=yes
   ;;
 
-sysv4 | sysv4.2uw2* | sysv4.3*)
+sysv4 | sysv4.3*)
   version_type=linux
   library_names_spec='${libname}${release}${shared_ext}$versuffix 
${libname}${release}${shared_ext}$major $libname${shared_ext}'
   soname_spec='${libname}${release}${shared_ext}$major'
@@ -1688,17 +1693,27 @@ sysv4*MP*)
   fi
   ;;
 
-sysv5*)
-  version_type=linux
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  version_type=freebsd-elf
   need_lib_prefix=no
   need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix 
${libname}${release}${shared_ext}$major $libname${shared_ext}'
+  library_names_spec='${libname}${release}${shared_ext}$versuffix 
${libname}${release}${shared_ext} $libname${shared_ext}'
   soname_spec='${libname}${release}${shared_ext}$major'
   shlibpath_var=LD_LIBRARY_PATH
-  shlibpath_overrides_runpath=yes
   hardcode_into_libs=yes
-  sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
-  sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
+  if test "$with_gnu_ld" = yes; then
+    shlibpath_overrides_runpath=no
+    sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib 
/usr/lib /lib'
+  else
+    shlibpath_overrides_runpath=yes
+    sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
+    case $host_os in
+      *-*-sco3.2v5*)
+        sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
+       ;;
+    esac
+  fi
+  sys_lib_dlsearch_path_spec='/usr/lib'
   ;;
 
 uts4*)
@@ -2319,15 +2334,11 @@ osf3* | osf4* | osf5*)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
-sco3.2v5*)
-  lt_cv_deplibs_check_method=pass_all
-  ;;
-
 solaris*)
   lt_cv_deplibs_check_method=pass_all
   ;;
 
-sysv4 | sysv4.2uw2* | sysv4.3*)
+sysv4 | sysv4.3*)
   case $host_vendor in
   motorola)
     lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB 
(shared object|dynamic lib) M[[0-9]][[0-9]]* Version [[0-9]]'
@@ -2354,7 +2365,7 @@ sysv4 | sysv4.2uw2* | sysv4.3*)
   esac
   ;;
 
-unixware7* | sysv5*)
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
   lt_cv_deplibs_check_method=pass_all
   ;;
 esac
@@ -2600,13 +2615,6 @@ _LT_LINKER_BOILERPLATE
 # Check for any special shared library compilation flags.
 #
 _LT_AC_TAGVAR(lt_prog_cc_shlib, $1)=
-if test "$GCC" = no; then
-  case $host_os in
-  sco3.2v5*)
-    _LT_AC_TAGVAR(lt_prog_cc_shlib, $1)='-belf'
-    ;;
-  esac
-fi
 if test -n "$_LT_AC_TAGVAR(lt_prog_cc_shlib, $1)"; then
   AC_MSG_WARN([`$CC' requires `$_LT_AC_TAGVAR(lt_prog_cc_shlib, $1)' to build 
shared libraries])
   if echo "$old_CC $old_CFLAGS " | grep "[[    
]]$_LT_AC_TAGVAR(lt_prog_cc_shlib, $1)[[        ]]" >/dev/null; then :
@@ -3477,19 +3485,6 @@ case $host_os in
     # FIXME: insert proper C++ library support
     _LT_AC_TAGVAR(ld_shlibs, $1)=no
     ;;
-  sco*)
-    _LT_AC_TAGVAR(archive_cmds_need_lc, $1)=no
-    case $cc_basename in
-      CC*)
-       # FIXME: insert proper C++ library support
-       _LT_AC_TAGVAR(ld_shlibs, $1)=no
-       ;;
-      *)
-       # FIXME: insert proper C++ library support
-       _LT_AC_TAGVAR(ld_shlibs, $1)=no
-       ;;
-    esac
-    ;;
   sunos4*)
     case $cc_basename in
       CC*)
@@ -3582,27 +3577,48 @@ case $host_os in
        ;;
     esac
     ;;
-  sysv5OpenUNIX8* | sysv5UnixWare7.[[01]].[[01]]* | sysv5uw[[78]]* | 
unixware7*)
+  sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | 
sco3.2v5.0.[024]*)
+    _LT_AC_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
+    _LT_AC_TAGVAR(archive_cmds_need_lc, $1)=no
+    _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+    runpath_var='LD_RUN_PATH'
+
     case $cc_basename in
       CC*)
-       _LT_AC_TAGVAR(no_undefined_flag, $1)='${wl}-z ${wl}text'
-       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h ${wl}$soname -o $lib 
$libobjs $deplibs $compiler_flags'
-       _LT_AC_TAGVAR(archive_cmds_need_lc, $1)=no
-       runpath_var='LD_RUN_PATH'
-       _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib 
$libobjs $deplibs $compiler_flags'
+       _LT_AC_TAGVAR(archive_expsym_cmds, $1)='$CC -G 
${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs 
$compiler_flags'
+       ;;
+      *)
+       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib 
$libobjs $deplibs $compiler_flags'
+       _LT_AC_TAGVAR(archive_expsym_cmds, $1)='$CC -shared 
${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs 
$compiler_flags'
        ;;
     esac
     ;;
-  sysv5*)
+  sysv5* | sco3.2v5* | sco5v6*)
+    # Note: We can NOT use -z defs as we might desire, because we do not
+    # link with -lc, and that would cause any symbols used from libc to
+    # always be unresolved, which means just about no library would
+    # ever link correctly. If we're not using GNU ld we use -z text
+    # though, which does catch some bad symbols but isn't as heavy-handed
+    # as -z defs.
+    _LT_AC_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
+    _LT_AC_TAGVAR(allow_undefined_flag, $1)="${wl}-z,nodefs"
+    _LT_AC_TAGVAR(archive_cmds_need_lc, $1)=no
+    _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+    _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='`if test -z "$SCOABSPATH"; 
then echo ${wl}-R,$libdir;fi`'
+    _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=':'
+    _LT_AC_TAGVAR(link_all_deplibs, $1)=yes
+    _LT_AC_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Bexport'
+    runpath_var='LD_RUN_PATH'
+
     case $cc_basename in
       CC*)
-       _LT_AC_TAGVAR(no_undefined_flag, $1)='${wl}-z ${wl}text'
-       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h ${wl}$soname -o $lib 
$libobjs $deplibs $compiler_flags'
-       _LT_AC_TAGVAR(archive_cmds_need_lc, $1)=no
-       _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
-       _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=':'
-       runpath_var='LD_RUN_PATH'
-       _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+       _LT_AC_TAGVAR(archive_cmds, $1)='if test -z "$SCOABSPATH"; then 
scosoname=$soname; else scosoname="${instrpath}/${soname}";fi; $CC -G 
${wl}-h,\$scosoname -o $lib $libobjs $deplibs $compiler_flags'
+       _LT_AC_TAGVAR(archive_expsym_cmds, $1)='if test -z "$SCOABSPATH"; then 
scosoname=$soname; else scosoname="${instrpath}/${soname}";fi; $CC -G 
${wl}-Bexport:$export_symbols ${wl}-h,\$scosoname -o $lib $libobjs $deplibs 
$compiler_flags'
+       ;;
+      *)
+       _LT_AC_TAGVAR(archive_cmds, $1)='if test -z "$SCOABSPATH"; then 
scosoname=$soname; else scosoname="${instrpath}/${soname}";fi; $CC -shared 
${wl}-h,\$scosoname -o $lib $libobjs $deplibs $compiler_flags'
+       _LT_AC_TAGVAR(archive_expsym_cmds, $1)='if test -z "$SCOABSPATH"; then 
scosoname=$soname; else scosoname="${instrpath}/${soname}";fi; $CC -shared 
${wl}-Bexport:$export_symbols ${wl}-h,\$scosoname -o $lib $libobjs $deplibs 
$compiler_flags'
        ;;
     esac
     ;;
@@ -4943,15 +4968,6 @@ AC_MSG_CHECKING([for $compiler option to
        ;;
       psos*)
        ;;
-      sco*)
-       case $cc_basename in
-         CC*)
-           _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
-           ;;
-         *)
-           ;;
-       esac
-       ;;
       solaris*)
        case $cc_basename in
          CC*)
@@ -4983,22 +4999,22 @@ AC_MSG_CHECKING([for $compiler option to
            ;;
        esac
        ;;
-      tandem*)
+      sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
        case $cc_basename in
-         NCC*)
-           # NonStop-UX NCC 3.20
+         CC*)
+           _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
            _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
-           ;;
-         *)
+           _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
            ;;
        esac
        ;;
-      unixware* | sysv5*)
+      tandem*)
        case $cc_basename in
-         CC*)
-           _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+         NCC*)
+           # NonStop-UX NCC 3.20
            _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
-           _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+           ;;
+         *)
            ;;
        esac
        ;;
@@ -5161,11 +5177,6 @@ AC_MSG_CHECKING([for $compiler option to
       _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
       ;;
 
-    sco3.2v5*)
-      _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-Kpic'
-      _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-dn'
-      ;;
-
     solaris*)
       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
       _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
@@ -5183,7 +5194,7 @@ AC_MSG_CHECKING([for $compiler option to
       _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
       ;;
 
-    sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+    sysv4 | sysv4.2uw2* | sysv4.3*)
       _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
       _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
@@ -5196,6 +5207,12 @@ AC_MSG_CHECKING([for $compiler option to
       fi
       ;;
 
+    sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+      _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+      _LT_AC_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
     unicos*)
       _LT_AC_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
       _LT_AC_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
@@ -5455,7 +5472,7 @@ EOF
       fi
       ;;
 
-    solaris* | sysv5*)
+    solaris*)
       if $LD -v 2>&1 | grep 'BFD 2\.8' > /dev/null; then
        _LT_AC_TAGVAR(ld_shlibs, $1)=no
        cat <<EOF 1>&2
@@ -5476,6 +5493,40 @@ EOF
       fi
       ;;
 
+    sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
+      case `$LD -v 2>&1` in
+        *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.1[[0-5]].*) 
+       _LT_AC_TAGVAR(ld_shlibs, $1)=no
+       cat <<_LT_EOF 1>&2
+
+*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 can not
+*** reliably create shared libraries on SCO systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.16.91.0.3 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+       ;;
+       *)
+         # For execurity reasons, it is highly recommended that you always
+         # use absolute paths for naming shared libraries, and exclude the
+         # DT_RUNPATH tag from executables and libraries. But doing so
+         # requires that you compile everything twice, which is a pain.
+         # So that behaviour is only enabled if SCOABSPATH is set to a
+         # non-empty value in the environment. Most likely only useful for
+         # creating official distributions of packages.
+         if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; 
then
+           _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='`if test -z 
"$SCOABSPATH"; then echo ${wl}-rpath ${wl}$libdir;fi`'
+           _LT_AC_TAGVAR(archive_cmds, $1)='if test -z "$SCOABSPATH";then 
scosoname=$soname; else scosoname="${instrpath}/${soname}";fi; $CC -shared 
$libobjs $deplibs $compiler_flags ${wl}-soname $wl\$scosoname -o $lib'
+           _LT_AC_TAGVAR(archive_expsym_cmds, $1)='if test -z 
"$SCOABSPATH";then scosoname=$soname; else 
scosoname="${instrpath}/${soname}";fi; $CC -shared $libobjs $deplibs 
$compiler_flags ${wl}-soname $wl\$scosoname ${wl}-retain-symbols-file 
$wl$export_symbols -o $lib'
+         else
+           _LT_AC_TAGVAR(ld_shlibs, $1)=no
+         fi
+       ;;
+      esac
+      ;;
+
     sunos4*)
       _LT_AC_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bshareable -o 
$lib $libobjs $deplibs $linker_flags'
       wlarc=
@@ -5915,14 +5966,6 @@ EOF
       _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=:
       ;;
 
-    sco3.2v5*)
-      _LT_AC_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs 
$deplibs $linker_flags'
-      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
-      _LT_AC_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Bexport'
-      runpath_var=LD_RUN_PATH
-      hardcode_runpath_var=yes
-      ;;
-
     solaris*)
       _LT_AC_TAGVAR(no_undefined_flag, $1)=' -z text'
       if test "$GCC" = yes; then
@@ -6008,39 +6051,45 @@ EOF
       fi
       ;;
 
-    sysv4.2uw2*)
-      _LT_AC_TAGVAR(archive_cmds, $1)='$LD -G -o $lib $libobjs $deplibs 
$linker_flags'
-      _LT_AC_TAGVAR(hardcode_direct, $1)=yes
-      _LT_AC_TAGVAR(hardcode_minus_L, $1)=no
+    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | 
sco3.2v5.0.[024]*)
+      _LT_AC_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
+      _LT_AC_TAGVAR(archive_cmds_need_lc, $1)=no
       _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
-      hardcode_runpath_var=yes
-      runpath_var=LD_RUN_PATH
-      ;;
+      runpath_var='LD_RUN_PATH'
 
-    sysv5OpenUNIX8* | sysv5UnixWare7.[[01]].[[10]]* |  sysv5uw[[78]]* | 
unixware7*)
-      _LT_AC_TAGVAR(no_undefined_flag, $1)='${wl}-z ${wl}text'
       if test "$GCC" = yes; then
-       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h ${wl}$soname -o 
$lib $libobjs $deplibs $compiler_flags'
+       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h,$soname -o $lib 
$libobjs $deplibs $compiler_flags'
+       _LT_AC_TAGVAR(archive_expsym_cmds, $1)='$CC -shared 
${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs 
$compiler_flags'
       else
-       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h ${wl}$soname -o $lib 
$libobjs $deplibs $compiler_flags'
+       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h,$soname -o $lib 
$libobjs $deplibs $compiler_flags'
+       _LT_AC_TAGVAR(archive_expsym_cmds, $1)='$CC -G 
${wl}-Bexport:$export_symbols ${wl}-h,$soname -o $lib $libobjs $deplibs 
$compiler_flags'
       fi
+      ;;
+
+    sysv5* | sco3.2v5* | sco5v6*)
+      # Note: We can NOT use -z defs as we might desire, because we do not
+      # link with -lc, and that would cause any symbols used from libc to
+      # always be unresolved, which means just about no library would
+      # ever link correctly. If we're not using GNU ld we use -z text
+      # though, which does catch some bad symbols but isn't as heavy-handed
+      # as -z defs.
+      _LT_AC_TAGVAR(no_undefined_flag, $1)='${wl}-z,text'
+      _LT_AC_TAGVAR(allow_undefined_flag, $1)="${wl}-z,nodefs"
       _LT_AC_TAGVAR(archive_cmds_need_lc, $1)=no
-      runpath_var='LD_RUN_PATH'
       _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
-      ;;
+      _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='`if test -z 
"$SCOABSPATH";then echo ${wl}-R,$libdir;fi`'
+      _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=':'
+      _LT_AC_TAGVAR(link_all_deplibs, $1)=yes
+      _LT_AC_TAGVAR(export_dynamic_flag_spec, $1)='${wl}-Bexport'
+      runpath_var='LD_RUN_PATH'
 
-    sysv5*)
-      _LT_AC_TAGVAR(no_undefined_flag, $1)='${wl}-z ${wl}text'
       if test "$GCC" = yes; then
-       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -shared ${wl}-h ${wl}$soname -o 
$lib $libobjs $deplibs $compiler_flags'
+       _LT_AC_TAGVAR(archive_cmds, $1)='if test -z "$SCOABSPATH"; then 
scosoname=$soname; else scosoname="${instrpath}/${soname}";fi; $CC -shared 
${wl}-h,\$scosoname -o $lib $libobjs $deplibs $compiler_flags'
+       _LT_AC_TAGVAR(archive_expsym_cmds, $1)='if test -z "$SCOABSPATH"; then 
scosoname=$soname; else scosoname="${instrpath}/${soname}";fi; $CC -shared 
${wl}-Bexport:$export_symbols ${wl}-h,\$scosoname -o $lib $libobjs $deplibs 
$compiler_flags'
       else
-       _LT_AC_TAGVAR(archive_cmds, $1)='$CC -G ${wl}-h ${wl}$soname -o $lib 
$libobjs $deplibs $compiler_flags'
+       _LT_AC_TAGVAR(archive_cmds, $1)='if test -z "$SCOABSPATH"; then 
scosoname=$soname; else scosoname="${instrpath}/${soname}";fi; $CC -G 
${wl}-h,\$scosoname -o $lib $libobjs $deplibs $compiler_flags'
+       _LT_AC_TAGVAR(archive_expsym_cmds, $1)='if test -z "$SCOABSPATH"; then 
scosoname=$soname; else scosoname="${instrpath}/${soname}";fi; $CC -G 
${wl}-Bexport:$export_symbols ${wl}-h,\$scosoname -o $lib $libobjs $deplibs 
$compiler_flags'
       fi
-      _LT_AC_TAGVAR(archive_cmds_need_lc, $1)=no
-      _LT_AC_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
-      _LT_AC_TAGVAR(hardcode_libdir_separator, $1)=':'
-      runpath_var='LD_RUN_PATH'
-      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
       ;;
 
     uts4*)