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-rw-r--r--libc/signal/sigfillset.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/libc/signal/sigfillset.c b/libc/signal/sigfillset.c
index ef60f1005..4e8af2d65 100644
--- a/libc/signal/sigfillset.c
+++ b/libc/signal/sigfillset.c
@@ -17,6 +17,9 @@
02111-1307 USA. */
#include <signal.h>
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+# include <pthreadP.h> /* SIGCANCEL */
+#endif
#if 0
#define __need_NULL
#include <stddef.h>