t-slibgcc-darwin: Don't put shared libraries in directories other than $(slibdir).

	* config/t-slibgcc-darwin: Don't put shared libraries in
	directories other than $(slibdir).
	* config/rs6000/darwin.h: Find -m64 libgcc under the name the
	OS uses for it.

From-SVN: r97991

gcc/ChangeLog

+2005-04-11  Geoffrey Keating  <geoffk@apple.com>
+
+	* config/t-slibgcc-darwin: Don't put shared libraries in
+	directories other than $(slibdir).
+	* config/rs6000/darwin.h: Find -m64 libgcc under the name the
+	OS uses for it.
+
 2005-04-11  Diego Novillo  <dnovillo@redhat.com>
 
 	PR tree-optimization/20933

gcc/config/rs6000/darwin.h

@@ -397,6 +397,14 @@ extern const char *darwin_one_byte_bool;
 #undef REGISTER_TARGET_PRAGMAS
 #define REGISTER_TARGET_PRAGMAS DARWIN_REGISTER_TARGET_PRAGMAS
 
+/* Just like config/darwin.h's REAL_LIBGCC_SPEC, but use -lgcc_s_ppc64 for
+   -m64.  */
+#undef REAL_LIBGCC_SPEC
+#define REAL_LIBGCC_SPEC						\
+   "%{static|static-libgcc:-lgcc -lgcc_eh;				\
+      :%{shared-libgcc|Zdynamiclib:%{m64:-lgcc_s_ppc64;:-lgcc_s} -lgcc;	\
+         :-lgcc -lgcc_eh}}"
+
 #ifdef IN_LIBGCC2
 #include <stdbool.h>
 #endif

gcc/config/t-slibgcc-darwin

@@ -3,35 +3,40 @@ SHLIB_MINOR = 1
 SHLIB_REVISION = 0
 SHLIB_VERSTRING = -compatibility_version $(SHLIB_MINOR) -current_version $(SHLIB_MINOR).$(SHLIB_REVISION)
 SHLIB_EXT = .dylib
-SHLIB_SOLINK = @shlib_base_name@.dylib
-SHLIB_SONAME = @shlib_base_name@.$(SHLIB_MINOR).$(SHLIB_REVISION).dylib
+SHLIB_SUFFIX = `if test @multilib_dir@ != . ; then echo _@multilib_dir@ ; fi`
+SHLIB_SOLINK = @shlib_base_name@$(SHLIB_SUFFIX)$(SHLIB_EXT)
+SHLIB_SONAME = @shlib_base_name@$(SHLIB_SUFFIX).$(SHLIB_MINOR).$(SHLIB_REVISION)$(SHLIB_EXT)
 SHLIB_MAP = @shlib_map_file@
 SHLIB_OBJS = @shlib_objs@
 SHLIB_DIR = @multilib_dir@
-SHLIB_SLIBDIR_QUAL = @shlib_slibdir_qual@
+
+# Darwin only searches in /usr/lib for shared libraries, not in subdirectories,
+# so the libgcc variants have different names not different locations.
 
 SHLIB_LINK = $(GCC_FOR_TARGET) $(LIBGCC2_CFLAGS) -dynamiclib -nodefaultlibs \
-	-Wl,-install_name,$(slibdir)$(SHLIB_SLIBDIR_QUAL)/$(SHLIB_SONAME) \
-	-Wl,-flat_namespace -o $(SHLIB_DIR)/$(SHLIB_SONAME).tmp \
+	-Wl,-install_name,$(slibdir)/$(SHLIB_SONAME) \
+	-Wl,-flat_namespace -o $(SHLIB_SONAME).tmp \
 	-Wl,-exported_symbols_list,$(SHLIB_MAP) \
 	$(SHLIB_VERSTRING) \
 	@multilib_flags@ $(SHLIB_OBJS) -lc && \
-	rm -f $(SHLIB_DIR)/$(SHLIB_SOLINK) && \
-	if [ -f $(SHLIB_DIR)/$(SHLIB_SONAME) ]; then \
-	  mv -f $(SHLIB_DIR)/$(SHLIB_SONAME) \
-		$(SHLIB_DIR)/$(SHLIB_SONAME).backup; \
+	rm -f $(SHLIB_SOLINK) $(SHLIB_DIR)/$(SHLIB_SOLINK) && \
+	if [ -f $(SHLIB_SONAME) ]; then \
+	  mv -f $(SHLIB_SONAME) $(SHLIB_SONAME).backup; \
 	else true; fi && \
-	mv $(SHLIB_DIR)/$(SHLIB_SONAME).tmp $(SHLIB_DIR)/$(SHLIB_SONAME) && \
-	$(LN_S) $(SHLIB_SONAME) $(SHLIB_DIR)/$(SHLIB_SOLINK)
+	mv $(SHLIB_SONAME).tmp $(SHLIB_SONAME) && \
+	$(LN_S) $(SHLIB_SONAME) $(SHLIB_SOLINK) && \
+	if [ $(SHLIB_DIR) != . ] ; then \
+	  $(LN_S) `pwd`/$(SHLIB_SONAME) $(SHLIB_DIR)/$(SHLIB_SOLINK) ; \
+	else true; fi
 # $(slibdir) double quoted to protect it from expansion while building
 # libgcc.mk.  We want this delayed until actual install time.
 SHLIB_INSTALL = \
-	$$(mkinstalldirs) $$(DESTDIR)$$(slibdir)$(SHLIB_SLIBDIR_QUAL); \
-	$(INSTALL_DATA) $(SHLIB_DIR)/$(SHLIB_SONAME) \
-	  $$(DESTDIR)$$(slibdir)$(SHLIB_SLIBDIR_QUAL)/$(SHLIB_SONAME); \
-	rm -f $$(DESTDIR)$$(slibdir)$(SHLIB_SLIBDIR_QUAL)/$(SHLIB_SOLINK); \
+	$$(mkinstalldirs) $$(DESTDIR)$$(slibdir); \
+	$(INSTALL_DATA) $(SHLIB_SONAME) \
+	  $$(DESTDIR)$$(slibdir)/$(SHLIB_SONAME); \
+	rm -f $$(DESTDIR)$$(slibdir)/$(SHLIB_SOLINK); \
 	$(LN_S) $(SHLIB_SONAME) \
-	  $$(DESTDIR)$$(slibdir)$(SHLIB_SLIBDIR_QUAL)/$(SHLIB_SOLINK)
+	  $$(DESTDIR)$$(slibdir)/$(SHLIB_SOLINK)
 SHLIB_MKMAP = $(srcdir)/mkmap-flat.awk
 SHLIB_MKMAP_OPTS = -v leading_underscore=1
 SHLIB_MAPFILES = $(srcdir)/libgcc-std.ver