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-rw-r--r--src/signal/sigsetjmp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/signal/sigsetjmp.c b/src/signal/sigsetjmp.c
index a6667a27..5c937074 100644
--- a/src/signal/sigsetjmp.c
+++ b/src/signal/sigsetjmp.c
@@ -9,7 +9,7 @@
 
 int sigsetjmp(sigjmp_buf buf, int save)
 {
-	long *flag = buf + sizeof(jmp_buf)/sizeof(long);
+	unsigned long *flag = buf + sizeof(jmp_buf)/sizeof(long);
 	sigset_t *mask = (void *)(flag + 1);
 	if ((*flag = save))
 		sigprocmask (SIG_SETMASK, NULL, mask);