PATCH: PR testsuite/41496: [4.5 regression] Many regressions on trunk

[H.J. Lu]

Hi Janis,

We need to unset DEFAULT_CXXFLAGS if we set it and it didn't exist before.
Otherwise, wrong DEFAULT_CXXFLAGS will be used in other tests. OK for
trunk?

Thanks.


H.J.
---
2009-09-29  H.J. Lu  <hongjiu.lu@intel.com>

	PR testsuite/41496
	* g++.dg/dfp/dfp.exp: Unset DEFAULT_CXXFLAGS if it didn't exist
	before.

Index: g++.dg/dfp/dfp.exp
===================================================================
--- g++.dg/dfp/dfp.exp	(revision 152249)
+++ g++.dg/dfp/dfp.exp	(working copy)
@@ -62,4 +62,6 @@ set dg-do-what-default ${save-dg-do-what
 verbose "dfp.exp: dg-do-what-default is ${dg-do-what-default}" 2
 if [info exists save_default_cxxflags] {
   set DEFAULT_CXXFLAGS $save_default_cxxflags
+} else {
+  unset DEFAULT_CXXFLAGS
 }