Index: test/lit.site.cfg.in
===================================================================
--- test/lit.site.cfg.in
+++ test/lit.site.cfg.in
@@ -16,7 +16,7 @@
 config.abi_library_path         = "@LIBCXX_CXX_ABI_LIBRARY_PATH@"
 config.configuration_variant    = "@LIBCXX_LIT_VARIANT@"
 config.host_triple              = "@LLVM_HOST_TRIPLE@"
-config.target_triple            = "@TARGET_TRIPLE@"
+config.target_triple            = "@LIBCXX_TARGET_TRIPLE@"
 config.use_target               = len("@LIBCXX_TARGET_TRIPLE@") > 0
 config.sysroot                  = "@LIBCXX_SYSROOT@"
 config.gcc_toolchain            = "@LIBCXX_GCC_TOOLCHAIN@"