X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/e79137accc7ea0352cd4677ff22818f9c68d4eab..0150aabe359f48ec9ea0b0d4cef081799731e414:/m4/m4.m4

diff --git a/m4/m4.m4 b/m4/m4.m4
index 3ef79084..6cf4af18 100644
--- 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