[src/trunk]: src/usr.bin/make make(1): remove mistyped extern variable

[rillig <rillig%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/2fbf87dd8fff
branches:  trunk
changeset: 956676:2fbf87dd8fff
user:      rillig <rillig%NetBSD.org@localhost>
date:      Wed Nov 04 13:27:00 2020 +0000

description:
make(1): remove mistyped extern variable

Robust programs don't have extern variable declarations in .c files, as
that risks incomatible definitions that are not detected by the compiler
and invoke undefined behavior.  Make make a little more robust.

diffstat:

 usr.bin/make/meta.c |  3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diffs (17 lines):

diff -r d005155e8858 -r 2fbf87dd8fff usr.bin/make/meta.c
--- a/usr.bin/make/meta.c       Wed Nov 04 13:22:15 2020 +0000
+++ b/usr.bin/make/meta.c       Wed Nov 04 13:27:00 2020 +0000
@@ -1,4 +1,4 @@
-/*      $NetBSD: meta.c,v 1.136 2020/10/31 12:04:24 rillig Exp $ */
+/*      $NetBSD: meta.c,v 1.137 2020/11/04 13:27:00 rillig Exp $ */
 
 /*
  * Implement 'meta' mode.
@@ -80,7 +80,6 @@
 static Boolean metaSilent = FALSE;     /* if we have a .meta be SILENT */
 
 extern Boolean forceJobs;
-extern Boolean comatMake;
 extern char    **environ;
 
 #define        MAKE_META_PREFIX        ".MAKE.META.PREFIX"