libstdc++.exp (v3_target_compile_as_c): Correct regexp to filter out -nostdinc++.

	* testsuite/lib/libstdc++.exp (v3_target_compile_as_c): Correct
	regexp to filter out -nostdinc++.

From-SVN: r124298

libstdc++-v3/ChangeLog

+2007-04-30  Hans-Peter Nilsson  <hp@axis.com>
+
+	* testsuite/lib/libstdc++.exp (v3_target_compile_as_c): Correct
+	regexp to filter out -nostdinc++.
+
 2007-04-30  Paolo Carlini  <pcarlini@suse.de>
 
 	PR libstdc++/30449 (equal)

libstdc++-v3/testsuite/lib/libstdc++.exp

@@ -391,7 +391,7 @@ proc v3_target_compile_as_c { source dest type options } {
     set cxxlibglossflags [libgloss_link_flags]
     set cc_final [concat $cc_final $cxxlibglossflags]
     set cc_final [concat $cc_final $includes]
-    regsub -all ".nostdinc.." $cc_final "" cc_final
+    regsub -all {\s[-]nostdinc[+][+]} $cc_final "" cc_final
 
     # This is needed for "C" tests, as this type of test may need the
     # C++ includes. And if we're not testing in the build directory,