re PR other/39888 (TLS emutls not linked to automatically on Darwin)

2009-11-18  Iain Sandoe <iain.sandoe@sandoe-acoustics.co.uk>

	PR other/39888
	* config/t-slibgcc-darwin: Fix embedded rpaths for
	--enable-version-specific-runtime-libs, build extension stub
	libs exposing features available from current libgcc_s.

From-SVN: r154282

libgcc/ChangeLog

-libgcc/
+2009-11-18  Iain Sandoe <iain.sandoe@sandoe-acoustics.co.uk>
+
+	PR other/39888
+	* config/t-slibgcc-darwin: Fix embedded rpaths for
+	--enable-version-specific-runtime-libs, build extension stub
+	libs exposing features available from current libgcc_s.
+
 2009-11-11  Jon Beniston <jon@beniston.com>
 
         * config.host: Add lm32 targets.

libgcc/config/t-slibgcc-darwin

@@ -2,9 +2,8 @@
 SHLIB_SOVERSION = 1
 SHLIB_VERSTRING = -compatibility_version $(SHLIB_SOVERSION) -current_version $(SHLIB_SOVERSION).0
 SHLIB_EXT = .dylib
-SHLIB_SUFFIX = `if test @multilib_dir@ = ppc64 ; then echo _@multilib_dir@ ; fi`
-SHLIB_INSTALL_NAME = @shlib_base_name@$(SHLIB_SUFFIX).$(SHLIB_SOVERSION)$(SHLIB_EXT)
-SHLIB_SONAME = @shlib_base_name@.$(SHLIB_SOVERSION)$(SHLIB_EXT)
+SHLIB_INSTALL_NAME = @shlib_base_name@.$(SHLIB_SOVERSION)$(SHLIB_EXT)
+SHLIB_SONAME = @shlib_base_name@$(SHLIB_EXT)
 SHLIB_SOLINK = @shlib_base_name@.so
 SHLIB_MAP = @shlib_map_file@
 SHLIB_OBJS = @shlib_objs@
@@ -15,9 +14,10 @@ SHLIB_LC = -lc
 # so the libgcc variants have different names not different locations.
 # Note that this version is used for the loader, not the linker; the linker
 # uses the stub versions named by the versioned members of $(INSTALL_FILES).
+
 SHLIB_LINK = $(CC) $(LIBGCC2_CFLAGS) -dynamiclib -nodefaultlibs \
 	-install_name @shlib_slibdir@/$(SHLIB_INSTALL_NAME) \
-	-single_module -o $(SHLIB_DIR)/$(SHLIB_SONAME).tmp \
+	-single_module -o $(SHLIB_DIR)/$(SHLIB_SONAME) \
 	-Wl,-exported_symbols_list,$(SHLIB_MAP) \
 	$(SHLIB_VERSTRING) \
 	@multilib_flags@ $(SHLIB_OBJS) $(SHLIB_LC)
@@ -26,16 +26,26 @@ SHLIB_MKMAP = $(gcc_srcdir)/mkmap-flat.awk
 SHLIB_MKMAP_OPTS = -v leading_underscore=1
 SHLIB_MAPFILES += $(gcc_srcdir)/libgcc-std.ver
 
-INSTALL_FILES=libgcc_s.10.4.dylib libgcc_s.10.5.dylib libgcc_s.1.dylib
+# we're only going to build the stubs if the target slib is /usr/lib
+# there is no other case in which they're useful in a live system.
+ifeq (/usr/lib,$(shlib_slibdir))
+LGCC_STUBS = libgcc_s.10.4.dylib libgcc_s.10.5.dylib
+else
+LGCC_STUBS =
+endif
+
+LGCC_FILES = libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)
+LGCC_FILES += $(LGCC_STUBS)
+LEXT_STUBS = libgcc_ext.10.4$(SHLIB_EXT) libgcc_ext.10.5$(SHLIB_EXT)
+LGCC_FILES += $(LEXT_STUBS)
+INSTALL_FILES=$(LGCC_FILES)
+
+# we do our own thing
+SHLIB_INSTALL =
 
 # For the toplevel multilib, build a fat archive including all the multilibs.
 ifeq ($(MULTIBUILDTOP),)
 
-SHLIB_INSTALL = \
-	$(mkinstalldirs) $(DESTDIR)$(slibdir); \
-	$(INSTALL_DATA) $(SHLIB_SONAME) \
-	  $(DESTDIR)$(slibdir)/$(SHLIB_SONAME)
-
 ifeq ($(enable_shared),yes)
 all: $(INSTALL_FILES)
 install-leaf: install-darwin-libgcc-stubs
@@ -48,35 +58,37 @@ endif
 # The actual use of the libraries is controlled by REAL_LIBGCC_SPEC.
 #
 # This assumes each multilib corresponds to a different architecture.
-libgcc_s.%.dylib : $(SHLIB_VERPFX).%.ver libgcc_s$(SHLIB_EXT) all-multi
-	$(STRIP) -o $(@)_T \
-	  -s $(SHLIB_VERPFX).$(*).ver -c -u \
-	  ./libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT).tmp
-	MLIBS=`$(CC) --print-multi-lib \
-		| sed -e 's/;.*$$//' -e '/^\.$$/d'` ; \
+libgcc_s.%.dylib : all-multi $(SHLIB_VERPFX).%.ver libgcc_s$(SHLIB_EXT)
+	MLIBS=`$(CC) --print-multi-lib | sed -e 's/;.*$$//'` ; \
 	for mlib in $$MLIBS ; do \
 	  $(STRIP) -o $(@)_T$${mlib} \
 	    -s $(SHLIB_VERPFX).$(*).ver -c -u \
-	    ../$${mlib}/libgcc/$${mlib}/libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT).tmp || exit 1 ; \
+	    ../$${mlib}/libgcc/$${mlib}/libgcc_s$(SHLIB_EXT)  || exit 1 ; \
 	done
 	$(LIPO) -output $@ -create $(@)_T*
 	rm $(@)_T*
 
-libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT): all-multi libgcc_s$(SHLIB_EXT) \
-	libgcc_s.10.4.dylib libgcc_s.10.5.dylib
-	cp libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT).tmp \
-	  ./libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T_ || exit 1 ; \
-	MLIBS=`$(CC) --print-multi-lib \
-		| sed -e 's/;.*$$//' -e '/^\.$$/d'` ; \
+libgcc_ext.%.dylib : all-multi $(SHLIB_VERPFX).%.ver libgcc_s$(SHLIB_EXT) 
+	MLIBS=`$(CC) --print-multi-lib | sed -e 's/;.*$$//'` ; \
 	for mlib in $$MLIBS ; do \
-	  cp ../$${mlib}/libgcc/$${mlib}/libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT).tmp \
+	  $(STRIP) -o $(@)_T$${mlib} \
+	    -R $(SHLIB_VERPFX).$(*).ver -c -urx \
+	    ../$${mlib}/libgcc/$${mlib}/libgcc_s$(SHLIB_EXT) || exit 1 ; \
+	done
+	$(LIPO) -output $@ -create $(@)_T*
+	rm $(@)_T*
+
+libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT): all-multi libgcc_s$(SHLIB_EXT)
+	MLIBS=`$(CC) --print-multi-lib | sed -e 's/;.*$$//'` ; \
+	for mlib in $$MLIBS ; do \
+	  cp ../$${mlib}/libgcc/$${mlib}/libgcc_s$(SHLIB_EXT)  \
 	    ./libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T_$${mlib} || exit 1 ; \
 	done
 	$(LIPO) -output libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT) \
 	  -create libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T*
 	rm libgcc_s.$(SHLIB_SOVERSION)$(SHLIB_EXT)_T*
 
-install-darwin-libgcc-stubs : $(INSTALL_FILES)
+install-darwin-libgcc-stubs :
 	$(mkinstalldirs) $(DESTDIR)$(slibdir)
 	for d in $(INSTALL_FILES) ; do \
 	  $(INSTALL_DATA) $$d $(DESTDIR)$(slibdir)/$$d || exit 1 ; \
@@ -98,7 +110,6 @@ else
 # we're putting them in the gcc directory during a build, for
 # compatibility with the pre-top-level layout.  In that case we
 # need symlinks.
-SHLIB_INSTALL =
 
 ifeq ($(enable_shared),yes)
 all: install-darwin-libgcc-links