--- src/third_party/mozjs-60/platform/aarch64/freebsd/build/Unified_cpp_js_src7.cpp.orig	2019-11-14 10:50:10 UTC
+++ src/third_party/mozjs-60/platform/aarch64/freebsd/build/Unified_cpp_js_src7.cpp
@@ -0,0 +1,55 @@
+#define MOZ_UNIFIED_BUILD
+#include "gc/Marking.cpp"
+#ifdef PL_ARENA_CONST_ALIGN_MASK
+#error "gc/Marking.cpp uses PL_ARENA_CONST_ALIGN_MASK, so it cannot be built in unified mode."
+#undef PL_ARENA_CONST_ALIGN_MASK
+#endif
+#ifdef INITGUID
+#error "gc/Marking.cpp defines INITGUID, so it cannot be built in unified mode."
+#undef INITGUID
+#endif
+#include "gc/Memory.cpp"
+#ifdef PL_ARENA_CONST_ALIGN_MASK
+#error "gc/Memory.cpp uses PL_ARENA_CONST_ALIGN_MASK, so it cannot be built in unified mode."
+#undef PL_ARENA_CONST_ALIGN_MASK
+#endif
+#ifdef INITGUID
+#error "gc/Memory.cpp defines INITGUID, so it cannot be built in unified mode."
+#undef INITGUID
+#endif
+#include "gc/Nursery.cpp"
+#ifdef PL_ARENA_CONST_ALIGN_MASK
+#error "gc/Nursery.cpp uses PL_ARENA_CONST_ALIGN_MASK, so it cannot be built in unified mode."
+#undef PL_ARENA_CONST_ALIGN_MASK
+#endif
+#ifdef INITGUID
+#error "gc/Nursery.cpp defines INITGUID, so it cannot be built in unified mode."
+#undef INITGUID
+#endif
+#include "gc/PublicIterators.cpp"
+#ifdef PL_ARENA_CONST_ALIGN_MASK
+#error "gc/PublicIterators.cpp uses PL_ARENA_CONST_ALIGN_MASK, so it cannot be built in unified mode."
+#undef PL_ARENA_CONST_ALIGN_MASK
+#endif
+#ifdef INITGUID
+#error "gc/PublicIterators.cpp defines INITGUID, so it cannot be built in unified mode."
+#undef INITGUID
+#endif
+#include "gc/RootMarking.cpp"
+#ifdef PL_ARENA_CONST_ALIGN_MASK
+#error "gc/RootMarking.cpp uses PL_ARENA_CONST_ALIGN_MASK, so it cannot be built in unified mode."
+#undef PL_ARENA_CONST_ALIGN_MASK
+#endif
+#ifdef INITGUID
+#error "gc/RootMarking.cpp defines INITGUID, so it cannot be built in unified mode."
+#undef INITGUID
+#endif
+#include "gc/Statistics.cpp"
+#ifdef PL_ARENA_CONST_ALIGN_MASK
+#error "gc/Statistics.cpp uses PL_ARENA_CONST_ALIGN_MASK, so it cannot be built in unified mode."
+#undef PL_ARENA_CONST_ALIGN_MASK
+#endif
+#ifdef INITGUID
+#error "gc/Statistics.cpp defines INITGUID, so it cannot be built in unified mode."
+#undef INITGUID
+#endif
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