need prototype to fix sigaction warnings

diff --git a/libc/sysdeps/linux/alpha/bits/kernel_sigaction.h b/libc/sysdeps/linux/alpha/bits/kernel_sigaction.h
index 4c35d96..66b4200 100644 (file)
--- a/libc/sysdeps/linux/alpha/bits/kernel_sigaction.h
+++ b/libc/sysdeps/linux/alpha/bits/kernel_sigaction.h
@@ -13,3 +13,6 @@ struct kernel_sigaction {
        unsigned int sa_flags;
        sigset_t sa_mask;
 };
+
+extern int __syscall_rt_sigaction (int, const struct kernel_sigaction *__unbounded,
+       struct kernel_sigaction *__unbounded, size_t);