svn commit: r475105 - head/lang/gcc8

[Gerald Pfeifer]

Author: gerald
Date: Sun Jul 22 12:29:08 2018
New Revision: 475105
URL: https://svnweb.freebsd.org/changeset/ports/475105

Log:
  Forward port r469788 from lang/gcc6:
  
    Filter the -mretpoline command-line option, which is understood by
    recent versions of clang (and used in the context of the Spectre
    security issues), but not GCC (which uses different options for the
    same) from CFLAGS and CXXFLAGS.
  
    This avoids the build of this port via bootstrap, which is the default
    and leverages both the system compiler (clang in most cases) plus a just
    built version GCC, to fail due to the latter not knowing -mretpoline.
  
  PR:		228205
  Submitted by:	rozhuk.im at gmail.com

Modified:
  head/lang/gcc8/Makefile

Modified: head/lang/gcc8/Makefile
==============================================================================
--- head/lang/gcc8/Makefile	Sun Jul 22 12:00:26 2018	(r475104)
+++ head/lang/gcc8/Makefile	Sun Jul 22 12:29:08 2018	(r475105)
@@ -35,6 +35,8 @@ USES=		compiler cpe gmake iconv libtool makeinfo perl5
 USE_BINUTILS=	yes
 USE_PERL5=	build
 SSP_UNSAFE=	yes
+CFLAGS:=	${CFLAGS:N-mretpoline}
+CXXFLAGS:=	${CXXFLAGS:N-mretpoline}
 
 OPTIONS_DEFINE=		BOOTSTRAP GRAPHITE
 OPTIONS_DEFAULT=	BOOTSTRAP