Add build system scaffolding and libc headers

1 files changed, 10 insertions, 0 deletions

diff --git a/lib/libc/signal/sigtimedwait.c b/lib/libc/signal/sigtimedwait.c
new file mode 100644
index 00000000..d55a4310
--- /dev/null
+++ b/lib/libc/signal/sigtimedwait.c
@@ -0,0 +1,10 @@
+#include <signal.h>
+#include <syscall.h>
+
+#define _NSIG 64
+
+int sigtimedwait(const sigset_t *restrict set, siginfo_t *restrict info,
+		 const struct timespec *restrict timeout)
+{
+	return syscall(rt_sigtimedwait, set, info, timeout, _NSIG / 8);
+}