revert r163410, partially revert r163267.

	* config/rs6000/darwin.h (LIB_SPEC): Remove.
	* config/darwin.h (REAL_LIBGCC_SPEC): Link lgcc for all 
	Darwin versions.

From-SVN: r163419

gcc/ChangeLog

+2010-08-20  Iain Sandoe  <iains@gcc.gnu.org>
+
+	revert r163410, partially revert r163267.
+	* config/rs6000/darwin.h (LIB_SPEC): Remove.
+	* config/darwin.h (REAL_LIBGCC_SPEC): Link lgcc for all 
+	Darwin versions.
+	
 2010-08-20  Jakub Jelinek  <jakub@redhat.com>
 
 	PR middle-end/44974

gcc/config/darwin.h

@@ -412,12 +412,12 @@ extern GTY(()) int darwin_ms_struct;
        %:version-compare(>< 10.5 10.6 mmacosx-version-min= -lgcc_s.10.5)   \
        %:version-compare(!> 10.5 mmacosx-version-min= -lgcc_ext.10.4)	   \
        %:version-compare(>= 10.5 mmacosx-version-min= -lgcc_ext.10.5)	   \
-       %:version-compare(< 10.5 mmacosx-version-min= -lgcc) ;		   \
+       -lgcc ;								   \
       :%:version-compare(>< 10.3.9 10.5 mmacosx-version-min= -lgcc_s.10.4) \
        %:version-compare(>< 10.5 10.6 mmacosx-version-min= -lgcc_s.10.5)   \
        %:version-compare(!> 10.5 mmacosx-version-min= -lgcc_ext.10.4)	   \
        %:version-compare(>= 10.5 mmacosx-version-min= -lgcc_ext.10.5)	   \
-       %:version-compare(< 10.5 mmacosx-version-min= -lgcc) }"
+       -lgcc }"
 
 /* We specify crt0.o as -lcrt0.o so that ld will search the library path.
 

gcc/config/rs6000/darwin.h

@@ -120,11 +120,6 @@ extern int darwin_emit_branch_islands;
    mcpu=G5:ppc970;				\
    :ppc}}"
 
-/* Linked libs might refer to save/restFP - we still need to append -lgcc to
-   provide these.  */
-#undef	LIB_SPEC
-#define LIB_SPEC "%{!static:-lgcc -lSystem}"
-
 /* crt2.o is at least partially required for 10.3.x and earlier.  */
 #define DARWIN_CRT2_SPEC \
   "%{!m64:%:version-compare(!> 10.4 mmacosx-version-min= crt2.o%s)}"