0.8.2.35

[sbcl.git] / src / runtime / bsd-os.h

diff --git a/src/runtime/bsd-os.h b/src/runtime/bsd-os.h
index 3cbf029..d95431d 100644 (file)
--- a/src/runtime/bsd-os.h
+++ b/src/runtime/bsd-os.h
@@ -37,6 +37,7 @@ typedef struct sigaltstack stack_t;
  * original FreeBSD port of SBCL, that's wrong, it's actually a
  * ucontext_t. */
 
+#include <sys/ucontext.h>
 typedef ucontext_t os_context_t;
 /* As the sbcl-devel message from Raymond Wiker 2000-12-01, FreeBSD
  * (unlike Linux and OpenBSD) doesn't let us tweak the CPU's single
@@ -47,6 +48,17 @@ typedef ucontext_t os_context_t;
 #elif defined __OpenBSD__
 typedef struct sigcontext os_context_t;
 #define SIG_MEMORY_FAULT SIGSEGV
+#elif defined DARWIN
+  /* man pages claim that the third argument is a sigcontext struct,
+     but ucontext_t is defined, matches sigcontext where sensible,
+     offers better access to mcontext, and is of course the SUSv2-
+     mandated type of the third argument, so we use that instead.
+     If Apple is going to break ucontext_t out of spite, I'm going
+     to be cross with them ;) -- PRM */
+
+#include <ucontext.h>
+typedef ucontext_t os_context_t;
+#define SIG_MEMORY_FAULT SIGBUS
 #else
 #error unsupported BSD variant
 #endif