re PR preprocessor/6844 (Seg fault when trying to preprocess a file with lots of #define's)

	PR preprocessor/6844
	* cppmacro.c (cpp_macro_definition): Reserve space for terminating
	NUL.

From-SVN: r54014

gcc/ChangeLog

+2002-05-29  Neil Booth  <neil@daikokuya.demon.co.uk>
+
+	PR preprocessor/6844
+	* cppmacro.c (cpp_macro_definition): Reserve space for terminating
+	NUL.
+
 2002-05-29  Eric Christopher  <echristo@redhat.com>
 
 	* config/mips/linux.h (SUBTARGET_CPP_SPEC): Add support for

gcc/cppmacro.c

@@ -1537,7 +1537,7 @@ cpp_macro_definition (pfile, node)
     }
 
   /* Calculate length.  */
-  len = NODE_LEN (node) + 1;			/* ' ' */
+  len = NODE_LEN (node) + 2;			/* ' ' and NUL.  */
   if (macro->fun_like)
     {
       len += 4;		/* "()" plus possible final ".." of named