Merge in branch-1_29.

[bison.git] / m4 / m4.m4

diff --git a/m4/m4.m4 b/m4/m4.m4
index 3ef7908492fccf35ea2157feeb5724aaa8cb31e2..6cf4af189336e671238812bad535386ee51b8705 100644 (file)
--- a/m4/m4.m4
+++ b/m4/m4.m4
@@ -1,14 +1,16 @@
-# serial 1
+# serial 1                                                   -*- Autoconf -*-
 
 # BISON_AC_PROG_GNU_M4
 # --------------------
 # Check for GNU m4, at least 1.3 (supports frozen files).
 AC_DEFUN([BISON_AC_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_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])])
+fi])
+])# BISON_AC_PROG_GNU_M4