Update m4 (for xcinclude)

[metaproxy-moved-to-github.git] / m4

diff --git a/m4 b/m4
index 59de4b0..c9c894a 160000 (submodule)
--- a/m4
+++ b/m4
@@ -1 +1 @@
-Subproject commit 59de4b0c89f3484d52ba8705ef86a1e0a39277b0
+Subproject commit c9c894a0b63f9ce9578570e3507c3e6232ec4797