hg: jdk9/hs: 8156980: Hotspot build doesn't have -std=gnu++98 gcc option; ...

[kim.barrett at oracle.com]

Changeset: f51004322fbe
Author:    andrew
Date:      2016-07-10 22:00 +0100
URL:       http://hg.openjdk.java.net/jdk9/hs/rev/f51004322fbe

8156980: Hotspot build doesn't have -std=gnu++98 gcc option
8157358: Syntax error in TOOLCHAIN_CHECK_COMPILER_VERSION
Summary: Add flags for GCC 6 to JVM_CFLAGS and fix prefix handling
Reviewed-by: erikj, kbarrett

! common/autoconf/flags.m4
! common/autoconf/generated-configure.sh
! common/autoconf/spec.gmk.in
! common/autoconf/toolchain.m4