initial check-in, version 0.5.0

src/linux/setgroups.c

@@ -0,0 +1,9 @@
+#include <unistd.h>
+#define SYSCALL_STANDALONE
+#include "syscall.h"
+
+int setgroups(int count, const gid_t list[])
+{
+	/* this depends on our gid_t being 32bit */
+	return syscall2(__NR_setgroups32, count, (long)list);
+}