Index: libcxxabi/trunk/test/lit.site.cfg.in
===================================================================
--- libcxxabi/trunk/test/lit.site.cfg.in
+++ libcxxabi/trunk/test/lit.site.cfg.in
@@ -20,6 +20,8 @@
 config.host_triple              = "@LLVM_HOST_TRIPLE@"
 config.target_triple            = "@TARGET_TRIPLE@"
 config.use_target               = len("@LIBCXXABI_TARGET_TRIPLE@") > 0
+config.sysroot                  = "@LIBCXXABI_SYSROOT@"
+config.gcc_toolchain            = "@LIBCXXABI_GCC_TOOLCHAIN@"
 config.cxx_ext_threads          = "@LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY@"
 
 # Let the main config do the real work.