diff --git a/cf/find-func-no-libs.m4 b/cf/find-func-no-libs.m4
index b4b849ac2..39696a04a 100644
--- a/cf/find-func-no-libs.m4
+++ b/cf/find-func-no-libs.m4
@@ -4,6 +4,6 @@ dnl
 dnl Look for function in any of the specified libraries
 dnl
 
-dnl AC_FIND_FUNC_NO_LIBS(func, libraries, includes, arguments)
+dnl AC_FIND_FUNC_NO_LIBS(func, libraries, includes, arguments, extra libs)
 AC_DEFUN(AC_FIND_FUNC_NO_LIBS, [
-AC_FIND_FUNC_NO_LIBS2([$1], ["" $2], [$3], [$4])])
+AC_FIND_FUNC_NO_LIBS2([$1], ["" $2], [$3], [$4], [$5])])