hash_map: Don't #include "backward_warning.h" if _GLIBCXX_PERMIT_BACKWARD_HASH is defined.

	* include/backward/hash_map: Don't #include "backward_warning.h"
	if _GLIBCXX_PERMIT_BACKWARD_HASH is defined.
	* include/backward/hash_set: Likewise.

From-SVN: r158281

libstdc++-v3/ChangeLog

+2010-04-13  Ian Lance Taylor  <iant@google.com>
+
+	* include/backward/hash_map: Don't #include "backward_warning.h"
+	if _GLIBCXX_PERMIT_BACKWARD_HASH is defined.
+	* include/backward/hash_set: Likewise.
+
 2010-04-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* configure.host (os_include_dir): Removed solaris2.7 support.

libstdc++-v3/include/backward/hash_map

@@ -57,7 +57,10 @@
 #ifndef _BACKWARD_HASH_MAP
 #define _BACKWARD_HASH_MAP 1
 
+#ifndef _GLIBCXX_PERMIT_BACKWARD_HASH
 #include "backward_warning.h"
+#endif
+
 #include <bits/c++config.h>
 #include <backward/hashtable.h>
 #include <bits/concept_check.h>

libstdc++-v3/include/backward/hash_set

@@ -57,7 +57,10 @@
 #ifndef _BACKWARD_HASH_SET
 #define _BACKWARD_HASH_SET 1
 
+#ifndef _GLIBCXX_PERMIT_BACKWARD_HASH
 #include "backward_warning.h"
+#endif
+
 #include <bits/c++config.h>
 #include <backward/hashtable.h>
 #include <bits/concept_check.h>