--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/druntime/import/core/stdc/signal.d	Tue Jun 02 17:43:06 2009 +0100
@@ -0,0 +1,53 @@
+/**
+ * D header file for C99.
+ *
+ * Copyright: Copyright Sean Kelly 2005 - 2009.
+ * License:   <a href="http://www.boost.org/LICENSE_1_0.txt>Boost License 1.0</a>.
+ * Authors:   Sean Kelly
+ * Standards: ISO/IEC 9899:1999 (E)
+ *
+ *          Copyright Sean Kelly 2005 - 2009.
+ * Distributed under the Boost Software License, Version 1.0.
+ *    (See accompanying file LICENSE_1_0.txt or copy at
+ *          http://www.boost.org/LICENSE_1_0.txt)
+ */
+module core.stdc.signal;
+
+extern (C):
+
+// this should be volatile
+alias int sig_atomic_t;
+
+private alias void function(int) sigfn_t;
+
+version( Posix )
+{
+    enum SIG_ERR    = cast(sigfn_t) -1;
+    enum SIG_DFL    = cast(sigfn_t) 0;
+    enum SIG_IGN    = cast(sigfn_t) 1;
+
+    // standard C signals
+    enum SIGABRT    = 6;  // Abnormal termination
+    enum SIGFPE     = 8;  // Floating-point error
+    enum SIGILL     = 4;  // Illegal hardware instruction
+    enum SIGINT     = 2;  // Terminal interrupt character
+    enum SIGSEGV    = 11; // Invalid memory reference
+    enum SIGTERM    = 15; // Termination
+}
+else
+{
+    enum SIG_ERR    = cast(sigfn_t) -1;
+    enum SIG_DFL    = cast(sigfn_t) 0;
+    enum SIG_IGN    = cast(sigfn_t) 1;
+
+    // standard C signals
+    enum SIGABRT    = 22; // Abnormal termination
+    enum SIGFPE     = 8;  // Floating-point error
+    enum SIGILL     = 4;  // Illegal hardware instruction
+    enum SIGINT     = 2;  // Terminal interrupt character
+    enum SIGSEGV    = 11; // Invalid memory reference
+    enum SIGTERM    = 15; // Termination
+}
+
+sigfn_t signal(int sig, sigfn_t func);
+int     raise(int sig);