-diff -aurN ardour-0.9beta9.1.orig/libs/pbd/pthread_utils.cc ardour-0.9beta9.1/libs/pbd/pthread_utils.cc
---- ardour-0.9beta9.1.orig/libs/pbd/pthread_utils.cc 2003-04-16 14:17:03.000000000 +0200
-+++ ardour-0.9beta9.1/libs/pbd/pthread_utils.cc 2004-02-12 21:04:49.433392736 +0100
-@@ -23,6 +23,7 @@
- #include <string>
-
- #include <pbd/pthread_utils.h>
-+#include <signal.h>
-
- using std::string;
- using std::cerr;