--- llvm-project-10.0.1.orig/llvm/include/llvm/Support/Signals.h
+++ llvm-project-10.0.1/llvm/include/llvm/Support/Signals.h
@@ -15,6 +15,7 @@
 #define LLVM_SUPPORT_SIGNALS_H
 
 #include <string>
+#include <cstdint>
 
 namespace llvm {
 class StringRef;