X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=m4%2Fgnu-make.m4;h=507dad6ec8a0711ca5e5e35dceeeef2119b411cd;hb=dc02bf0d39a3ae0d90d9b7b0feb32c2cc7cdff86;hp=472429d1238b15255ea624ad26ba4fadde3cce0d;hpb=c7e61475680fa226bd9b8bdd469cd66914e630f5;p=debian%2Fgzip

diff --git a/m4/gnu-make.m4 b/m4/gnu-make.m4
index 472429d..507dad6 100644
--- a/m4/gnu-make.m4
+++ b/m4/gnu-make.m4
@@ -1,6 +1,6 @@
 # Determine whether recent-enough GNU Make is being used.
 
-# Copyright (C) 2007 Free Software Foundation, Inc.
+# Copyright (C) 2007, 2009-2018 Free Software Foundation, Inc.
 
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
@@ -10,10 +10,8 @@
 
 # Set GNU_MAKE if we are using a recent-enough version of GNU make.
 
-# Use --version AND trailing junk, because SGI Make doesn't fail on --version.
-
 AC_DEFUN([gl_GNU_MAKE],
 [
   AM_CONDITIONAL([GNU_MAKE],
-    [${MAKE-make} --version /cannot/make/this >/dev/null 2>&1])
+    [LC_ALL=C ${MAKE-make} --version 2>/dev/null | sed -e '2,$d' | grep GNU >/dev/null])
 ])