re PR target/7327 (-isystem and template linkage)

        PR c++/7327
        * config/sparc/sol2.h (NO_IMPLICIT_EXTERN_C): Define.

From-SVN: r71005

gcc/ChangeLog

+2003-09-02  Jason Merrill  <jason@redhat.com>
+
+	PR c++/7327
+	* config/sparc/sol2.h (NO_IMPLICIT_EXTERN_C): Define.
+
 2003-09-02  Jeff Sturm  <jsturm@one-point.com>
 
 	* cgraphunit.c (record_call_1): Use walk_tree_without_duplicates.

gcc/config/sparc/sol2.h

@@ -135,3 +135,6 @@ Boston, MA 02111-1307, USA.  */
    sparc_override_options will disable V8+ if not generating V9 code.  */
 #undef TARGET_DEFAULT
 #define TARGET_DEFAULT (MASK_V8PLUS + MASK_FPU + MASK_LONG_DOUBLE_128)
+
+/* The system headers under Solaris (at least 2.5.1 and up) are C++-aware.  */
+#define NO_IMPLICIT_EXTERN_C