[src/trunk]: src/external/gpl3/gcc/lib/libstdc++-v3 fix the grep pattern for ...

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

details:   https://anonhg.NetBSD.org/src/rev/63658b46e79c
branches:  trunk
changeset: 321847:63658b46e79c
user:      mrg <mrg%NetBSD.org@localhost>
date:      Sat Apr 07 22:17:52 2018 +0000

description:
fix the grep pattern for inside a makefile.  fixes build issue
reported by thorpej on tech-toolchain - we both found the same
fix around the same time.

XXX: kamil says solaris-type hosts will fail here as they need
XXX: 'egrep' not 'grep -E'.

diffstat:

 external/gpl3/gcc/lib/libstdc++-v3/Makefile |  4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diffs (18 lines):

diff -r 90132949bbc5 -r 63658b46e79c external/gpl3/gcc/lib/libstdc++-v3/Makefile
--- a/external/gpl3/gcc/lib/libstdc++-v3/Makefile       Sat Apr 07 21:43:26 2018 +0000
+++ b/external/gpl3/gcc/lib/libstdc++-v3/Makefile       Sat Apr 07 22:17:52 2018 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile,v 1.32 2018/02/07 02:30:39 mrg Exp $
+#      $NetBSD: Makefile,v 1.33 2018/04/07 22:17:52 mrg Exp $
 
 REQUIRETOOLS=  yes
 NOLINT=                # defined
@@ -21,7 +21,7 @@
 .if ${MKPIC} != "no"
 libstdc++-symbols.ver:
        cat ${DIST}/libstdc++-v3/config/abi/pre/gnu.ver ${G_port_specific_symbol_files} | \
-       ${TOOL_GREP} -E -v '^[     ]*#(#| |$)' | \
+       ${TOOL_GREP} -E -v '^[     ]*#(#| |$$)' | \
        ${CXX} -I${DESTDIR}/usr/include/g++ -E -P -include ${.CURDIR}/arch/${LIBSTDCXX_MACHINE_ARCH}/c++config.h - > \
        ${.TARGET}.tmp && mv ${.TARGET}.tmp ${.TARGET} && rm -f ${.TARGET}.tmp