fix missing limits when only _BSD_SOURCE is defined

[musl] / include / signal.h

diff --git a/include/signal.h b/include/signal.h
index bef8ae0..860f742 100644 (file)
--- a/include/signal.h
+++ b/include/signal.h
@@ -13,6 +13,7 @@ extern "C" {
 
 #ifdef _GNU_SOURCE
 #define __siginfo siginfo
+#define __ucontext ucontext
 #endif
 
 #define __NEED_size_t