Add build system scaffolding and libc headers

1 files changed, 10 insertions, 0 deletions

diff --git a/lib/libc/unistd/sleep.c b/lib/libc/unistd/sleep.c
new file mode 100644
index 00000000..b2aef854
--- /dev/null
+++ b/lib/libc/unistd/sleep.c
@@ -0,0 +1,10 @@
+#include <time.h>
+#include <unistd.h>
+
+unsigned sleep(unsigned seconds)
+{
+	struct timespec tv = { .tv_sec = seconds, .tv_nsec = 0 };
+	if (nanosleep(&tv, &tv))
+		return tv.tv_sec;
+	return 0;
+}