portability: fix spawning on at least FreeBSD 8 and FreeBSD 9.

[bison.git] / m4 / m4.m4

diff --git a/m4/m4.m4 b/m4/m4.m4
deleted file mode 100644 (file)
index be0140f06a9fb1426adf1dfff04c4b91339a47be..0000000000000000000000000000000000000000
--- a/m4/m4.m4
+++ /dev/null
@@ -1,27 +0,0 @@
-# Copyright 2000 Free Software Foundation, Inc.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-# BISON_PROG_GNU_M4
-# -----------------
-# Check for GNU m4, at least 1.3 (supports frozen files).
-AC_DEFUN([BISON_PROG_GNU_M4],
-[AC_PATH_PROGS(M4, gm4 gnum4 m4, m4)
-AC_CACHE_CHECK(whether m4 supports frozen files, ac_cv_prog_gnu_m4,
-[ac_cv_prog_gnu_m4=no
-if test x"$M4" != x; then
-  case `$M4 --help < /dev/null 2>&1` in
-    *reload-state*) ac_cv_prog_gnu_m4=yes ;;
-  esac
-fi])])

diff --git a/m4/m4.m4 b/m4/m4.m4
new file mode 120000 (symlink)
index 0000000000000000000000000000000000000000..5b176ba061db1a8daeb1d3037e2cb21da2422c1c
--- /dev/null
+++ b/m4/m4.m4
@@ -0,0 +1 @@
+../submodules/autoconf/m4/m4.m4
\ No newline at end of file