--- /dev/null
+#ifndef __SIGNAL_H
+#define __SIGNAL_H
+
+#include <signal.h>
+#include <types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef WIN32
+
+/* terminal line hangup */
+#ifndef SIGHUP
+#define SIGHUP 1
+#endif
+
+/* interrupt program */
+#ifndef SIGINT
+#define SIGINT 2
+#endif
+
+/* quit program */
+#ifndef SIGQUIT
+#define SIGQUIT 3
+#endif
+
+/* illegal instruction */
+#ifndef SIGILL
+#define SIGILL 4
+#endif
+
+/* trace trap */
+#ifndef SIGTRAP
+#define SIGTRAP 5
+#endif
+
+/* abnormal termination triggered by abort call */
+#ifndef SIGABRT
+#define SIGABRT 6
+#endif
+
+/* floating point exception */
+#ifndef SIGFPE
+#define SIGFPE 8
+#endif
+
+/* kill program */
+#ifndef SIGKILL
+#define SIGKILL 9
+#endif
+
+/* bus error */
+#ifndef SIGBUS
+#define SIGBUS 10
+#endif
+
+/* segment violation */
+#ifndef SIGSEGV
+#define SIGSEGV 11
+#endif
+
+/* non-existent system call invoked */
+#ifndef SIGSYS
+#define SIGSYS 12
+#endif
+
+/* write on a pipe with no reader */
+#ifndef SIGPIPE
+#define SIGPIPE 13
+#endif
+
+/* real-time timer expired */
+#ifndef SIGALRM
+#define SIGALRM 14
+#endif
+
+/* software termination signal from kill */
+#ifdef SIGTERM
+#define SIGTERM 15
+#endif
+
+/* urgent condition present on socket */
+#ifndef SIGURG
+#define SIGURG 16
+#endif
+
+/* stop (cannot be caught orignored) */
+#ifndef SIGSTOP
+#define SIGSTOP 17
+#endif
+
+/* stop signal generated from keyboard */
+#ifndef SIGTSTP
+#define SIGTSTP 18
+#endif
+
+/* continue after stop */
+#ifndef SIGCONT
+#define SIGCONT 19
+#endif
+
+/* child status has changed */
+#ifndef SIGCHLD
+#define SIGCHLD 20
+#endif
+
+/* background read attempted from control terminal */
+#ifndef SIGTTIN
+#define SIGTTIN 21
+#endif
+
+/* background write attempted to control terminal */
+#ifndef SIGTTOU
+#define SIGTTOU 22
+#endif
+
+/* I/O is possible on a descriptor see fcntl(2)) */
+#ifndef SIGIO
+#define SIGIO 23
+#endif
+
+/* cpu time limit exceeded (see setrlimit(2)) */
+#ifndef SIGXCPU
+#define SIGXCPU 24
+#endif
+
+/* file size limit exceeded (see setrlimit(2)) */
+#ifndef SIGXFSZ
+#define SIGXFSZ 25
+#endif
+
+/* virtual time alarm (see setitimer(2)) */
+#ifndef SIGVTALRM
+#define SIGVTALRM 26
+#endif
+
+/* profiling timer alarm (see setitimer(2)) */
+#ifndef SIGPROF
+#define SIGPROF 27
+#endif
+
+/* window size change */
+#ifndef SIGWINCH
+#define SIGWINCH 28
+#endif
+
+/* user defined signal 1 */
+#ifndef SIGUSR1
+#define SIGUSR1 30
+#endif
+
+/* user defined signal 2 */
+#ifndef SIGUSR2
+#define SIGUSR2 31
+#endif
+
+
+int
+is_an_unhandled_exception(DWORD exit_code);
+
+/*
+ *return a non-zero value if status was returned for a child process that terminated normally.
+ */
+#define WIFEXITED(__status) !is_an_unhandled_exception((__status))
+
+/* if the value of WIFEXITED(__status) is non-zero, this macro evaluates the value the child
+ * process returned from main().
+ */
+#define WEXITSTATUS(__status) (__status)
+
+/* return a non-zero value if status was returned for a child process that terminated due to the
+ * receipt of a signal that was not caught
+ */
+#define WIFSIGNALED(__status) is_an_unhandled_exception((__status))
+
+/* if the value of WIFSIGNALED(__status) is non-zero, this macro evaluates to the number of the
+ * signal that caused the termination of the child process.
+ */
+#define WTERMSIG(__status) (__status)
+
+#endif /* WIN32 */
+
+
+#ifdef WIN32
+const char*
+signal_name(DWORD got, char* expected);
+#else
+const char*
+signal_name(unsigned int got, char *expected);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* !__SIGNAL_H */
