| # gnu-make.m4 | |
| # serial 1 | |
| dnl Copyright (C) 2007, 2009-2026 Free Software Foundation, Inc. | |
| dnl This file is free software; the Free Software Foundation | |
| dnl gives unlimited permission to copy and/or distribute it, | |
| dnl with or without modifications, as long as this notice is preserved. | |
| dnl This file is offered as-is, without any warranty. | |
| # Determine whether recent-enough GNU Make is being used. | |
| # Written by Paul Eggert. | |
| # Set GNU_MAKE if we are using a recent-enough version of GNU make. | |
| AC_DEFUN([gl_GNU_MAKE], | |
| [ | |
| AM_CONDITIONAL([GNU_MAKE], | |
| [LC_ALL=C ${MAKE-make} --version 2>/dev/null | sed -e '2,$d' | grep GNU >/dev/null]) | |
| ]) |