[committed, PATCH] Don't reset CXXFLAGS_FOR_TARGET

[H.J. Lu]

Since mt-gnu is only used with GNU target, it is OK to use GNU make
feature.

H.J.
---
	Sync with GCC
	2014-04-25  Marc Glisse  <marc.glisse@inria.fr>

	PR target/43538
	* mt-gnu: Don't reset CXXFLAGS_FOR_TARGET.
---
 config/ChangeLog | 12 ++++++++++--
 config/mt-gnu    |  2 +-
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/config/ChangeLog b/config/ChangeLog
index ddda76f..fdc880c 100644
--- a/config/ChangeLog
+++ b/config/ChangeLog
@@ -1,9 +1,17 @@
-2015-03-18  H.J. Lu  <hongjiu.lu@intel.com>
+2015-03-16  H.J. Lu  <hongjiu.lu@intel.com>
+
+	Sync with GCC
+	2014-04-25  Marc Glisse  <marc.glisse@inria.fr>
+
+	PR target/43538
+	* mt-gnu: Don't reset CXXFLAGS_FOR_TARGET.
+
+2015-03-16  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* bootstrap-asan.mk: Sync with GCC tree.
 	* bootstrap-lto.mk: Likewise.
 
-2015-03-18  H.J. Lu  <hongjiu.lu@intel.com>
+2015-03-16  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* cloog.m4: Removed.
 
diff --git a/config/mt-gnu b/config/mt-gnu
index 15bf417..5c696f5 100644
--- a/config/mt-gnu
+++ b/config/mt-gnu
@@ -1 +1 @@
-CXXFLAGS_FOR_TARGET = $(CXXFLAGS) -D_GNU_SOURCE
+CXXFLAGS_FOR_TARGET += -D_GNU_SOURCE
-- 
1.9.3