static-object.mk (c_flags-$o): Save c_flags.

	* static-object.mk (c_flags-$o): Save c_flags.
	($(base)$(objext)): Use it.

From-SVN: r181544

libgcc/ChangeLog

+2011-11-20  Hans-Peter Nilsson  <hp@axis.com>
+
+	* static-object.mk (c_flags-$o): Save c_flags.
+	($(base)$(objext)): Use it.
+
 2011-11-18  Steve Ellcey  <sje@cup.hp.com>
 
 	* Makefile.in (c_flags): Set to -fno-exceptions to build libunwind.

libgcc/static-object.mk

@@ -6,10 +6,15 @@ iter-items := $(filter-out $o,$(iter-items))
 
 base := $(basename $(notdir $o))
 
+# Copy c_flags to a rule-specific copy and use the copy, to avoid the
+# following rules being affected by later changes to c_flags in the
+# including file.
+c_flags-$o := $(c_flags)
+
 ifeq ($(suffix $o),.c)
 
 $(base)$(objext): $o
-	$(gcc_compile) $(c_flags) -c $< $(vis_hide)
+	$(gcc_compile) $(c_flags-$<) -c $< $(vis_hide)
 
 else