Fixing configure failures from newer gcc

[Martin Husemann <martin%duskware.de@localhost>]

Hey folks,

I had to add the following hack to x11/rxvt/Makefile to get it to build
on newer NetBSD current.

This obviously is wrong, but what is the proper idiom for fixing fallout
like this? Not making it depend on NetBSD and at least checking for
CC_VERSION:Mgcc-14.* sounds still awkward to me.

Without this -Wno- additions gcc 14 fails a lot of (broken) configure tests
and we end up with a non-buildable configuration.

Martin

Index: Makefile
===================================================================
RCS file: /cvsroot/pkgsrc/x11/rxvt/Makefile,v
retrieving revision 1.66
diff -u -r1.66 Makefile
--- Makefile	24 Nov 2021 06:55:41 -0000	1.66
+++ Makefile	11 Oct 2025 07:31:03 -0000
@@ -50,6 +50,7 @@
 
 # Make sure _NETBSD_SOURCE is defined for updlastlogx
 CFLAGS.NetBSD+=	-D_NETBSD_SOURCE
+CFLAGS.NetBSD+=	-Wno-implicit-function-declaration -Wno-implicit-int
 
 post-patch:
 	${MV} ${WRKSRC}/src/feature.h  ${WRKSRC}/src/feature.h.orig