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-rw-r--r--tool/m4/ruby_func_attribute.m41
1 files changed, 1 insertions, 0 deletions
diff --git a/tool/m4/ruby_func_attribute.m4 b/tool/m4/ruby_func_attribute.m4
index 437769880a..b265fd41da 100644
--- a/tool/m4/ruby_func_attribute.m4
+++ b/tool/m4/ruby_func_attribute.m4
@@ -1,3 +1,4 @@
+# -*- Autoconf -*-
dnl RUBY_FUNC_ATTRIBUTE(attrib, macroname, cachevar, condition)
AC_DEFUN([RUBY_FUNC_ATTRIBUTE], [dnl
RUBY_DECL_ATTRIBUTE([$1], [$2], [$3], [$4],