* src/threads/native/critical.h (signal.h): Added, build fix for some

older Darwin systems.

diff --git a/src/threads/native/critical.h b/src/threads/native/critical.h
index 3c51eed58e8f96167cab6f17ce99cf7ec1c0a757..378e78356fdfb32727ad5b9b0e9be39f3e9dd729 100644 (file)
--- a/src/threads/native/critical.h
+++ b/src/threads/native/critical.h
@@ -39,8 +39,10 @@
 
 #include "config.h"
 
+#include <signal.h>   /* required on some older Darwin systems for ucontext.h */
 #include <ucontext.h>
 
+
 /* forward typedefs ***********************************************************/
 
 typedef struct critical_section_node_t critical_section_node_t;