Index: tools/clang/tools/driver/driver.cpp
===================================================================
--- tools/clang/tools/driver/driver.cpp
+++ tools/clang/tools/driver/driver.cpp
@@ -213,11 +213,17 @@
       {"clang", nullptr},
       {"clang++", "--driver-mode=g++"},
       {"clang-c++", "--driver-mode=g++"},
+#if defined(__FreeBSD__)
+      {"clang-CC", "--driver-mode=g++" },
+#endif
       {"clang-cc", nullptr},
       {"clang-cpp", "--driver-mode=cpp"},
       {"clang-g++", "--driver-mode=g++"},
       {"clang-gcc", nullptr},
       {"clang-cl", "--driver-mode=cl"},
+#if defined(__FreeBSD__)
+      {"CC", "--driver-mode=g++"},
+#endif
       {"cc", nullptr},
       {"cpp", "--driver-mode=cpp"},
       {"cl", "--driver-mode=cl"},