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-rw-r--r--configure.in2
1 files changed, 1 insertions, 1 deletions
diff --git a/configure.in b/configure.in
index d945a8f..2cf123a 100644
--- a/configure.in
+++ b/configure.in
@@ -98,7 +98,7 @@ AC_PROG_INSTALL
AC_PROG_RANLIB
AC_CHECK_PROG(FLEX, flex, flex)
AC_CHECK_PROG(BISON, bison, bison)
-AC_CHECK_PROG(M4, m4, m4)
+AC_CHECK_PROGS(M4, gm4 m4, m4)
if test -z "$FLEX" -o -z "$BISON" -o -z "$M4" ; then
AC_MSG_ERROR([Some tools required for building BIRD are missing.])
fi