Index: flower/offset.cc
diff --git a/flower/offset.cc b/flower/offset.cc
index fa88bd0657542305bbcc73584a955c0439d21a2c..3b13b73e0f438821e020bf4830740ed66fdf66bd 100644
--- a/flower/offset.cc
+++ b/flower/offset.cc
@@ -17,8 +17,13 @@
along with LilyPond. If not, see .
*/
+// Needed because of extension definitions for POSIX functions.
+#include "config.hh"
+
#include "offset.hh"
+#include
+
using std::string;
#ifndef STANDALONE