diff -ru ispc-1.19.0.original/src/target_registry.h ispc-1.19.0/src/target_registry.h
--- ispc-1.19.0.original/src/target_registry.h	2023-02-27 23:53:24.000000000 -0800
+++ ispc-1.19.0/src/target_registry.h	2023-02-28 16:58:36.179549748 -0800
@@ -41,6 +41,7 @@
 
 #include <bitset>
 #include <map>
+#include <cstdint>
 #include <vector>
 
 namespace ispc {