[src/trunk]: src/usr.bin/make make: fix compiler warning about signedness in ...

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

details:   https://anonhg.NetBSD.org/src/rev/cd3ac5bd7f3d
branches:  trunk
changeset: 980391:cd3ac5bd7f3d
user:      rillig <rillig%NetBSD.org@localhost>
date:      Wed Feb 03 06:58:22 2021 +0000

description:
make: fix compiler warning about signedness in comparison

diffstat:

 usr.bin/make/util.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (27 lines):

diff -r 1b3ad8dea63b -r cd3ac5bd7f3d usr.bin/make/util.c
--- a/usr.bin/make/util.c       Wed Feb 03 06:51:26 2021 +0000
+++ b/usr.bin/make/util.c       Wed Feb 03 06:58:22 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: util.c,v 1.74 2021/02/01 19:46:58 rillig Exp $ */
+/*     $NetBSD: util.c,v 1.75 2021/02/03 06:58:22 rillig Exp $ */
 
 /*
  * Missing stuff from OS's
@@ -15,7 +15,7 @@
 
 #include "make.h"
 
-MAKE_RCSID("$NetBSD: util.c,v 1.74 2021/02/01 19:46:58 rillig Exp $");
+MAKE_RCSID("$NetBSD: util.c,v 1.75 2021/02/03 06:58:22 rillig Exp $");
 
 #if !defined(MAKE_NATIVE) && !defined(HAVE_STRERROR)
 extern int errno, sys_nerr;
@@ -45,7 +45,7 @@
        len = strlen(name);
        for (i = 0; (q = environ[i]); i++) {
                p = strchr(q, '=');
-               if (p == NULL || p - q != len)
+               if (p == NULL || (size_t)(p - q) != len)
                        continue;
                if (strncmp(name, q, len) == 0) {
                        *offset = i;