dup2: Make code more maintainable.

[gnulib.git] / m4 / dup2.m4

diff --git a/m4/dup2.m4 b/m4/dup2.m4
index 5c2cc96..cc641fe 100644 (file)
--- a/m4/dup2.m4
+++ b/m4/dup2.m4
@@ -1,4 +1,4 @@
-#serial 14
+#serial 15
 dnl Copyright (C) 2002, 2005, 2007, 2009-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -71,3 +71,9 @@ AC_DEFUN([gl_FUNC_DUP2],
     fi
   ])
 ])
+
+# Prerequisites of lib/dup2.c.
+AC_DEFUN([gl_PREREQ_DUP2].
+[
+  AC_REQUIRE([AC_C_INLINE])
+])