Re: branch-1_4 allow C++ on Linux

Eric Blake <ebb9 <at> byu.net> writes:

> Well, this isn't a complete patch, but it gets closer.
> 
> 2006-11-11  Eric Blake  <ebb9 <at> byu.net>
> 
> 	One step closer to allowing C++ compilation - don't blindly
> 	convert between char* and unsigned char*.

Missed one.

2006-11-14  Eric Blake  <[email protected]>

	* m4/resyntax.c (m4_regexp_syntax_encode): Avoid bug with signed
	char.

Index: m4/resyntax.c
===================================================================
RCS file: /sources/m4/m4/m4/resyntax.c,v
retrieving revision 1.2
diff -u -r1.2 resyntax.c
--- m4/resyntax.c	26 Sep 2006 13:19:26 -0000	1.2
+++ m4/resyntax.c	14 Nov 2006 19:38:45 -0000
@@ -93,8 +93,8 @@
     {
       if ((*p == ' ') || (*p == '-'))
 	*p = '_';
-      else if (islower (*p))
-	*p = toupper (*p);
+      else if (islower (to_uchar (*p)))
+	*p = toupper (to_uchar (*p));
     }
 
   for (resyntax = m4_resyntax_map; resyntax->spec != NULL; ++resyntax)