[pkgsrc/trunk]: pkgsrc/mk/compiler Limit GCC SSP support to 4.x and newer.

[jperkin <jperkin%pkgsrc.org@localhost>]

details:   https://anonhg.NetBSD.org/pkgsrc/rev/880578b8dd94
branches:  trunk
changeset: 368149:880578b8dd94
user:      jperkin <jperkin%pkgsrc.org@localhost>
date:      Mon Sep 11 09:06:41 2017 +0000

description:
Limit GCC SSP support to 4.x and newer.

diffstat:

 mk/compiler/gcc.mk |  10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)

diffs (27 lines):

diff -r 966d58a51831 -r 880578b8dd94 mk/compiler/gcc.mk
--- a/mk/compiler/gcc.mk        Mon Sep 11 07:51:44 2017 +0000
+++ b/mk/compiler/gcc.mk        Mon Sep 11 09:06:41 2017 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: gcc.mk,v 1.183 2017/08/25 01:43:17 khorben Exp $
+# $NetBSD: gcc.mk,v 1.184 2017/09/11 09:06:41 jperkin Exp $
 #
 # This is the compiler definition for the GNU Compiler Collection.
 #
@@ -372,12 +372,14 @@
 .endif
  
 # The user can choose the level of stack smashing protection.
-.if ${PKGSRC_USE_SSP} == "all"
+.if ${_GCC_VERSION:C/\..*$//} >= 4
+.  if ${PKGSRC_USE_SSP} == "all"
 _SSP_CFLAGS=           -fstack-protector-all
-.elif ${PKGSRC_USE_SSP} == "strong"
+.  elif ${PKGSRC_USE_SSP} == "strong"
 _SSP_CFLAGS=           -fstack-protector-strong
-.else
+.  else
 _SSP_CFLAGS=           -fstack-protector
+.  endif
 .endif
 
 _STACK_CHECK_CFLAGS=   -fstack-check