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-rw-r--r--libc/signal/sigwait.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/libc/signal/sigwait.c b/libc/signal/sigwait.c
index 6bca1b1e5..d0421f3d3 100644
--- a/libc/signal/sigwait.c
+++ b/libc/signal/sigwait.c
@@ -21,6 +21,7 @@
#include <errno.h>
#include <signal.h>
#include <string.h>
+#include <unistd.h>
#if defined __UCLIBC_HAS_REALTIME__