gzip: add upstream bug report URL

[Thomas Klausner (via pkgsrc-wip) <commit-notify%pkgsrc.org@localhost>]

Module Name:	pkgsrc-wip
Committed By:	Thomas Klausner <wiz%NetBSD.org@localhost>
Pushed By:	wiz
Date:		Sun Jun 14 15:09:41 2026 +0200
Changeset:	3435996084e16fae1955d5887fa975cb6ab06894

Modified Files:
	gzip/Makefile

Log Message:
gzip: add upstream bug report URL

To see a diff of this commit:
https://wip.pkgsrc.org/cgi-bin/gitweb.cgi?p=pkgsrc-wip.git;a=commitdiff;h=3435996084e16fae1955d5887fa975cb6ab06894

Please note that diffs are not public domain; they are subject to the
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diffstat:
 gzip/Makefile | 1 +
 1 file changed, 1 insertion(+)

diffs:
diff --git a/gzip/Makefile b/gzip/Makefile
index 0c44c4c625..dc9bdc7988 100644
--- a/gzip/Makefile
+++ b/gzip/Makefile
@@ -16,6 +16,7 @@ MAKE_FLAGS+=	manlinks=so
 INFO_FILES=	yes
 CHECK_PERMS=	no	# can't depend on checkperms; its distfile is gzipped
 
+# https://debbugs.gnu.org/cgi/bugreport.cgi?bug=81231
 CFLAGS+=	-Wno-implicit-function-declaration
 
 .include "../../mk/bsd.pkg.mk"