svn commit: r234310 - head/usr.bin/m4

[Baptiste Daroussin]

Author: bapt
Date: Sun Apr 15 13:25:51 2012
New Revision: 234310
URL: http://svn.freebsd.org/changeset/base/234310

Log:
  Improve m4 compatibility with GNU m4 extension ** (exponent)
  
  Submitted by:	Marc Espie (espie at OpenBSD.org)
  Approved by:	des@ (mentor)

Modified:
  head/usr.bin/m4/eval.c
  head/usr.bin/m4/extern.h
  head/usr.bin/m4/main.c

Modified: head/usr.bin/m4/eval.c
==============================================================================
--- head/usr.bin/m4/eval.c	Sun Apr 15 11:10:24 2012	(r234309)
+++ head/usr.bin/m4/eval.c	Sun Apr 15 13:25:51 2012	(r234310)
@@ -269,10 +269,11 @@ expand_builtin(const char *argv[], int a
 	case INCLTYPE:
 		if (argc > 2)
 			if (!doincl(argv[2])) {
-				if (mimic_gnu) 
+				if (mimic_gnu) {
 					warn("%s at line %lu: include(%s)",
 					    CURRENT_NAME, CURRENT_LINE, argv[2]);
-				else
+					exit_code = 1;
+				} else
 					err(1, "%s at line %lu: include(%s)",
 					    CURRENT_NAME, CURRENT_LINE, argv[2]);
 			}

Modified: head/usr.bin/m4/extern.h
==============================================================================
--- head/usr.bin/m4/extern.h	Sun Apr 15 11:10:24 2012	(r234309)
+++ head/usr.bin/m4/extern.h	Sun Apr 15 13:25:51 2012	(r234310)
@@ -87,6 +87,7 @@ extern ndptr macro_getbuiltin(const char
 /* main.c */
 extern void outputstr(const char *);
 extern void do_emit_synchline(void);
+extern int exit_code;
 #define emit_synchline() do { if (synch_lines) do_emit_synchline(); } while(0)
 
 /* misc.c */

Modified: head/usr.bin/m4/main.c
==============================================================================
--- head/usr.bin/m4/main.c	Sun Apr 15 11:10:24 2012	(r234309)
+++ head/usr.bin/m4/main.c	Sun Apr 15 13:25:51 2012	(r234310)
@@ -164,6 +164,8 @@ static void enlarge_stack(void);
 
 int main(int, char *[]);
 
+int exit_code = 0;
+
 int
 main(int argc, char *argv[])
 {
@@ -282,7 +284,7 @@ main(int argc, char *argv[])
 		(void) fclose(outfile[0]);
 	}
 
-	return 0;
+	return exit_code;
 }
 
 /*