t-darwin (DARWIN_EXTRA_CRT_BUILD_CFLAGS): Add -mmacosx-version-min=10.4.

        * config/rs6000/t-darwin (DARWIN_EXTRA_CRT_BUILD_CFLAGS): Add
        -mmacosx-version-min=10.4.
        (crt2.o): Add $(DARWIN_EXTRA_CRT_BUILD_CFLAGS).

From-SVN: r120167

gcc/ChangeLog

+2006-12-22  Mike Stump  <mrs@apple.com>
+
+	* config/rs6000/t-darwin (DARWIN_EXTRA_CRT_BUILD_CFLAGS): Add
+	-mmacosx-version-min=10.4.
+	(crt2.o): Add $(DARWIN_EXTRA_CRT_BUILD_CFLAGS).
+	
 2006-12-23  Jan Hubicka  <jh@suse.cz>
 
 	* tree-flow-inline.h (var_ann): External variable annotations are

gcc/config/rs6000/t-darwin

@@ -8,7 +8,7 @@ LIB2FUNCS_STATIC_EXTRA = \
 	$(srcdir)/config/rs6000/darwin-vecsave.asm  \
 	$(srcdir)/config/rs6000/darwin-world.asm
 
-DARWIN_EXTRA_CRT_BUILD_CFLAGS = -mlongcall
+DARWIN_EXTRA_CRT_BUILD_CFLAGS = -mlongcall -mmacosx-version-min=10.4
 
 # The .asm files above are designed to run on all processors,
 # even though they use AltiVec instructions.  -Wa is used because
@@ -34,4 +34,5 @@ darwin-tramp.o:		$(srcdir)/config/rs6000/darwin-asm.h
 $(T)crt2$(objext): $(srcdir)/config/darwin-crt2.c $(GCC_PASSES) \
 	$(TCONFIG_H) stmp-int-hdrs tsystem.h
 	$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) \
+	  $(DARWIN_EXTRA_CRT_BUILD_CFLAGS) \
 	  -c $(srcdir)/config/darwin-crt2.c -o $(T)crt2$(objext)