add libc building to agbcc.

1 files changed, 31 insertions, 0 deletions

diff --git a/libc/include/signal.h b/libc/include/signal.h
new file mode 100644
index 0000000..8274369
--- /dev/null
+++ b/libc/include/signal.h
@@ -0,0 +1,31 @@
+#ifndef _SIGNAL_H_
+#ifdef __cplusplus
+extern "C" {
+#endif
+#define _SIGNAL_H_
+
+#include "_ansi.h"
+#include <sys/signal.h>
+
+typedef int	sig_atomic_t;		/* Atomic entity type (ANSI) */
+
+#define SIG_DFL ((void (*)(int))0)	/* Default action */
+#define SIG_IGN ((void (*)(int))1)	/* Ignore action */
+#define SIG_ERR ((void (*)(int))-1)	/* Error return */
+
+typedef void (*_sig_func_ptr) (int);
+
+struct _reent;
+
+_sig_func_ptr _EXFUN(_signal_r, (struct _reent *, int, _sig_func_ptr));
+int	_EXFUN(_raise_r, (struct _reent *, int));
+
+#ifndef _REENT_ONLY
+_sig_func_ptr _EXFUN(signal, (int, _sig_func_ptr));
+int	_EXFUN(raise, (int));
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* _SIGNAL_H_ */