[src/trunk]: src/usr.bin/make make(1): allow to build using GCC 9 during deve...

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

details:   https://anonhg.NetBSD.org/src/rev/6b04047c6eb3
branches:  trunk
changeset: 936924:6b04047c6eb3
user:      rillig <rillig%NetBSD.org@localhost>
date:      Sun Aug 09 05:51:04 2020 +0000

description:
make(1): allow to build using GCC 9 during development

diffstat:

 usr.bin/make/Makefile |  18 +++++++++++++++++-
 1 files changed, 17 insertions(+), 1 deletions(-)

diffs (39 lines):

diff -r 9808afd579a1 -r 6b04047c6eb3 usr.bin/make/Makefile
--- a/usr.bin/make/Makefile     Sun Aug 09 02:53:21 2020 +0000
+++ b/usr.bin/make/Makefile     Sun Aug 09 05:51:04 2020 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile,v 1.83 2020/08/08 13:50:23 rillig Exp $
+#      $NetBSD: Makefile,v 1.84 2020/08/09 05:51:04 rillig Exp $
 #      @(#)Makefile    5.2 (Berkeley) 12/28/90
 
 PROG=  make
@@ -56,6 +56,18 @@
 LDADD+=                -fsanitize=undefined
 .endif
 
+# Whether to compile with GCC 9 from pkgsrc, during development.
+USE_GCC9?=     no
+.if ${USE_GCC9} == "yes"
+# CC is set further down in this file
+COPTS+=                -Wno-attributes # for abs and labs
+COPTS.arch.c+= -Wno-error=format-truncation
+COPTS.dir.c+=  -Wno-error=format-truncation
+COPTS.main.c+= -Wno-error=format-truncation
+COPTS.meta.c+= -Wno-error=format-truncation
+COPTS.parse.c+=        -Wno-error=format-truncation
+.endif
+
 USE_META?=     yes
 .if ${USE_META:tl} != "no"
 
@@ -96,6 +108,10 @@
 COPTS.parse.c+=        -Wno-format-nonliteral
 COPTS.var.c+=  -Wno-format-nonliteral
 
+.if ${USE_GCC9} == "yes"
+CC=            /usr/pkg/gcc9/bin/gcc
+.endif
+
 .if defined(TOOLDIR)
 # This is a native NetBSD build, use libutil rather than the local emalloc etc.
 CPPFLAGS+=     -DUSE_EMALLOC