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-rw-r--r--llvm/lib/System/Unix/Program.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/lib/System/Unix/Program.cpp b/llvm/lib/System/Unix/Program.cpp
index 9469fff8a3e..18cbc33d841 100644
--- a/llvm/lib/System/Unix/Program.cpp
+++ b/llvm/lib/System/Unix/Program.cpp
@@ -19,6 +19,7 @@
#include <llvm/Config/config.h>
#include "Unix.h"
#include <sys/stat.h>
+#include <signal.h>
#include <fcntl.h>
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
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