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-rw-r--r--tool/m4/ac_checking.m41
1 files changed, 1 insertions, 0 deletions
diff --git a/tool/m4/ac_checking.m4 b/tool/m4/ac_checking.m4
index 6015ae1b9a..1a9d2a49bf 100644
--- a/tool/m4/ac_checking.m4
+++ b/tool/m4/ac_checking.m4
@@ -1,3 +1,4 @@
+# -*- Autoconf -*-
AC_DEFUN([AC_CHECKING],[dnl
AC_REQUIRE([_COLORIZE_RESULT_PREPARE])dnl
AS_MESSAGE([checking ${msg_checking}$1${msg_reset}...])])dnl