Index: libunwind/trunk/test/lit.site.cfg.in
===================================================================
--- libunwind/trunk/test/lit.site.cfg.in
+++ libunwind/trunk/test/lit.site.cfg.in
@@ -19,6 +19,8 @@
 config.host_triple              = "@LLVM_HOST_TRIPLE@"
 config.target_triple            = "@TARGET_TRIPLE@"
 config.use_target               = len("@LIBUNWIND_TARGET_TRIPLE@") > 0
+config.sysroot                  = "@LIBUNWIND_SYSROOT@"
+config.gcc_toolchain            = "@LIBUNWIND_GCC_TOOLCHAIN@"
 config.cxx_ext_threads          = "@LIBUNWIND_BUILD_EXTERNAL_THREAD_LIBRARY@"
 
 # Let the main config do the real work.