Darwin shared lib support

[Daniel Johnson]

There is a problem with Libtool's support of Darwin shared libs. In 
Libtool 1.4, the Darwin specific code was in the non-GNU ld section 
of libtool.m4; however, in the current version it has moved into the 
GNU ld section. Since Darwin doesn't use GNU ld, the code is never 
run and Libtool thinks Darwin can't build shared libs. The code 
needs to be moved back to the non-GNU section. I've included a diff 
from the current CVS source. I THINK I did this right, but since I'm 
a total newbie at this... It works on my system anyway. :) I hope 
someone else finds this of use.

Index: libtool.m4
===================================================================
RCS file: /cvsroot/libtool/libtool/libtool.m4,v
retrieving revision 1.223
diff -u -d -b -w -r1.223 libtool.m4
--- libtool.m4  2001/09/02 23:32:13     1.223
+++ libtool.m4  2001/09/06 17:14:49
@@ -4434,27 +4434,6 @@
         $CC $output_objdir/$soname-exp '$lt_cv_cc_dll_switch' 
-Wl,-e,'$dll_entry' -o $output_objdir/$soname '$ltdll_obj'$libobjs 
$deplibs $compiler_flags'
       ;;

-    darwin* | rhapsody*)
-      case "$host_os" in
-      rhapsody* | darwin1.[[012]])
-        _LT_AC_TAGVAR(allow_undefined_flag, $1)='-undefined suppress'
-        ;;
-      *) # Darwin 1.3 on
-        _LT_AC_TAGVAR(allow_undefined_flag, $1)='-flat_namespace 
-undefined suppress'
-        ;;
-      esac
-
-      # FIXME: Relying on posixy $() will cause problems for
-      #        cross-compilation, but unfortunately the echo tests 
do not
-      #        yet detect zsh echo's removal of \ escapes.
-      _LT_AC_TAGVAR(archive_cmds, $1)='$CC $(test "x$module" = 
xyes && echo -bundle || echo -dynamiclib) $allow_undefined_flag -o 
$lib $libobjs $deplibs$linker_flags -install_name $rpath/$soname 
$verstring'
-      # We need to add '_' to the symbols in $export_symbols first
-      #_LT_AC_TAGVAR(archive_expsym_cmds, 
$1)="$_LT_AC_TAGVAR(archive_cmds, $1)"' && strip -s $export_symbols'
-      _LT_AC_TAGVAR(hardcode_direct, $1)=yes
-      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
-      _LT_AC_TAGVAR(whole_archive_flag_spec, $1)='-all_load 
$convenience'
-      ;;
-
     netbsd*)
       if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
         _LT_AC_TAGVAR(archive_cmds, $1)='$LD -Bshareable $libobjs 
$deplibs $linker_flags -o $lib'
@@ -4683,6 +4662,27 @@
       # FIXME: Should let the user specify the lib program.
       _LT_AC_TAGVAR(old_archive_cmds, $1)='lib 
/OUT:$oldlib$oldobjs$old_deplibs'
       fix_srcfile_path='`cygpath -w "$srcfile"`'
+      ;;
+
+    darwin* | rhapsody*)
+      case "$host_os" in
+      rhapsody* | darwin1.[[012]])
+        _LT_AC_TAGVAR(allow_undefined_flag, $1)='-undefined suppress'
+        ;;
+      *) # Darwin 1.3 on
+        _LT_AC_TAGVAR(allow_undefined_flag, $1)='-flat_namespace 
-undefined suppress'
+        ;;
+      esac
+
+      # FIXME: Relying on posixy $() will cause problems for
+      #        cross-compilation, but unfortunately the echo tests 
do not
+      #        yet detect zsh echo's removal of \ escapes.
+      _LT_AC_TAGVAR(archive_cmds, $1)='$CC $(test "x$module" = 
xyes && echo -bundle || echo -dynamiclib) $allow_undefined_flag -o 
$lib $libobjs $deplibs$linker_flags -install_name $rpath/$soname 
$verstring'
+      # We need to add '_' to the symbols in $export_symbols first
+      #_LT_AC_TAGVAR(archive_expsym_cmds, 
$1)="$_LT_AC_TAGVAR(archive_cmds, $1)"' && strip -s $export_symbols'
+      _LT_AC_TAGVAR(hardcode_direct, $1)=yes
+      _LT_AC_TAGVAR(hardcode_shlibpath_var, $1)=no
+      _LT_AC_TAGVAR(whole_archive_flag_spec, $1)='-all_load 
$convenience'
       ;;

     dgux*)


--
Daniel Johnson
address@hidden