[src/trunk]: src/share/mk allow EXTERNAL_GCC_SUBDIR to be overriden.

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

details:   https://anonhg.NetBSD.org/src/rev/60de3806cec0
branches:  trunk
changeset: 357896:60de3806cec0
user:      mrg <mrg%NetBSD.org@localhost>
date:      Fri Dec 01 22:48:00 2017 +0000

description:
allow EXTERNAL_GCC_SUBDIR to be overriden.

diffstat:

 share/mk/bsd.own.mk |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (21 lines):

diff -r c1cfb846f0f6 -r 60de3806cec0 share/mk/bsd.own.mk
--- a/share/mk/bsd.own.mk       Fri Dec 01 22:47:06 2017 +0000
+++ b/share/mk/bsd.own.mk       Fri Dec 01 22:48:00 2017 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: bsd.own.mk,v 1.1024 2017/11/29 22:40:45 christos Exp $
+#      $NetBSD: bsd.own.mk,v 1.1025 2017/12/01 22:48:00 mrg Exp $
 
 # This needs to be before bsd.init.mk
 .if defined(BSD_MK_COMPAT_FILE)
@@ -81,9 +81,9 @@
 # set to the relevant subdirectory in src/external/gpl3 for his HAVE_GCC.
 #
 .if ${HAVE_GCC} == 53
-EXTERNAL_GCC_SUBDIR=   gcc.old
+EXTERNAL_GCC_SUBDIR?=  gcc.old
 .else
-EXTERNAL_GCC_SUBDIR=   /does/not/exist
+EXTERNAL_GCC_SUBDIR=?  /does/not/exist
 .endif
 .else
 MKGCCCMDS?=    no