try to make sure we have GNU m4

diff --git a/configure.in b/configure.in
index 01fb5c0d7a4bf5bcdab473c396f85922a28307fe..6bf508cf4aeea15349f55ccc46514b38894726f8 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -44,7 +44,7 @@ AC_PROG_RANLIB
 
 AC_PATH_PROG(BISON, bison,bison)
 AC_PATH_PROG(HELP2MAN, help2man, help2man)
-AC_PATH_PROG(M4, m4, m4)
+AC_PATH_PROGS(M4, gnum4 gm4 m4, m4)
 AC_PATH_PROG(INDENT, indent, indent)
 dnl if INDENT is set to 'indent' then we didn't find indent
 if test "$INDENT" != indent ; then