configure: only try -Qunused-arguments for clang

[musl] / src / signal / sigwait.c

diff --git a/src/signal/sigwait.c b/src/signal/sigwait.c
index 9569d6b..c8822ee 100644 (file)
--- a/src/signal/sigwait.c
+++ b/src/signal/sigwait.c
@@ -1,10 +1,9 @@
 #include <signal.h>
-#include <stddef.h>
 
-int sigwait(const sigset_t *mask, int *sig)
+int sigwait(const sigset_t *restrict mask, int *restrict sig)
 {
        siginfo_t si;
-       if (sigtimedwait(mask, &si, NULL) < 0)
+       if (sigtimedwait(mask, &si, 0) < 0)
                return -1;
        *sig = si.si_signo;
        return 0;