[src/trunk]: src update GCC 7 version to nb4 20200810, and fix the unknown GC...

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

details:   https://anonhg.NetBSD.org/src/rev/c175020999a8
branches:  trunk
changeset: 937194:c175020999a8
user:      mrg <mrg%NetBSD.org@localhost>
date:      Tue Aug 11 09:51:57 2020 +0000

description:
update GCC 7 version to nb4 20200810, and fix the unknown GCC version
error assignment from "=?" to "?=" so it works as designed.

diffstat:

 share/mk/bsd.own.mk      |  4 ++--
 tools/gcc/gcc-version.mk |  4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diffs (33 lines):

diff -r a314d3fcf744 -r c175020999a8 share/mk/bsd.own.mk
--- a/share/mk/bsd.own.mk       Tue Aug 11 08:45:54 2020 +0000
+++ b/share/mk/bsd.own.mk       Tue Aug 11 09:51:57 2020 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: bsd.own.mk,v 1.1202 2020/07/21 14:42:44 tsutsui Exp $
+#      $NetBSD: bsd.own.mk,v 1.1203 2020/08/11 09:51:57 mrg Exp $
 
 # This needs to be before bsd.init.mk
 .if defined(BSD_MK_COMPAT_FILE)
@@ -83,7 +83,7 @@
 .elif ${HAVE_GCC} == 8
 EXTERNAL_GCC_SUBDIR?=  gcc
 .else
-EXTERNAL_GCC_SUBDIR=?  /does/not/exist
+EXTERNAL_GCC_SUBDIR?=  /does/not/exist
 .endif
 .else
 MKGCCCMDS?=    no
diff -r a314d3fcf744 -r c175020999a8 tools/gcc/gcc-version.mk
--- a/tools/gcc/gcc-version.mk  Tue Aug 11 08:45:54 2020 +0000
+++ b/tools/gcc/gcc-version.mk  Tue Aug 11 09:51:57 2020 +0000
@@ -1,9 +1,9 @@
-#      $NetBSD: gcc-version.mk,v 1.18 2020/03/11 10:07:01 mrg Exp $
+#      $NetBSD: gcc-version.mk,v 1.19 2020/08/11 09:51:57 mrg Exp $
 
 # common location for tools and native build
 
 .if ${HAVE_GCC} == 7
-NETBSD_GCC_VERSION=nb3 20190319
+NETBSD_GCC_VERSION=nb4 20200810
 .elif ${HAVE_GCC} == 8
 NETBSD_GCC_VERSION=nb1 20200311
 .endif