[CMake] Update lit test configuration

There are several changes:
- Don't stringify Pythonized bools (that's why we're Pythonizing them)
- Support specifying target and sysroot via CMake variables
- Use consistent spelling for --target, --sysroot, --gcc-toolchain

git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@353137 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 5e51c44..01fae13 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -17,6 +17,7 @@
 pythonize_bool(LIBCXXABI_ENABLE_THREADS)
 pythonize_bool(LIBCXXABI_ENABLE_EXCEPTIONS)
 pythonize_bool(LIBCXXABI_USE_LLVM_UNWINDER)
+pythonize_bool(LIBCXXABI_USE_COMPILER_RT)
 pythonize_bool(LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY)
 set(LIBCXXABI_TARGET_INFO "libcxx.test.target_info.LocalTI" CACHE STRING
     "TargetInfo to use when setting up test environment.")
diff --git a/test/lit.site.cfg.in b/test/lit.site.cfg.in
index d8e58be..a4c5764 100644
--- a/test/lit.site.cfg.in
+++ b/test/lit.site.cfg.in
@@ -8,22 +8,23 @@
 config.cxx_headers              = "@LIBCXXABI_LIBCXX_INCLUDES@"
 config.libunwind_headers        = "@LIBCXXABI_LIBUNWIND_INCLUDES_INTERNAL@"
 config.cxx_library_root         = "@LIBCXXABI_LIBCXX_LIBRARY_PATH@"
-config.llvm_unwinder            = "@LIBCXXABI_USE_LLVM_UNWINDER@"
-config.enable_threads           = "@LIBCXXABI_ENABLE_THREADS@"
+config.llvm_unwinder            = @LIBCXXABI_USE_LLVM_UNWINDER@
+config.compiler_rt              = @LIBCXXABI_USE_COMPILER_RT@
+config.enable_threads           = @LIBCXXABI_ENABLE_THREADS@
 config.use_sanitizer            = "@LLVM_USE_SANITIZER@"
 config.sanitizer_library        = "@LIBCXXABI_SANITIZER_LIBRARY@"
-config.enable_32bit             = "@LIBCXXABI_BUILD_32_BITS@"
+config.enable_32bit             = @LIBCXXABI_BUILD_32_BITS@
 config.target_info              = "@LIBCXXABI_TARGET_INFO@"
 config.executor                 = "@LIBCXXABI_EXECUTOR@"
-config.libcxxabi_shared         = "@LIBCXXABI_ENABLE_SHARED@"
-config.enable_shared            = "@LIBCXX_ENABLE_SHARED@"
-config.enable_exceptions        = "@LIBCXXABI_ENABLE_EXCEPTIONS@"
+config.libcxxabi_shared         = @LIBCXXABI_ENABLE_SHARED@
+config.enable_shared            = @LIBCXX_ENABLE_SHARED@
+config.enable_exceptions        = @LIBCXXABI_ENABLE_EXCEPTIONS@
 config.host_triple              = "@LLVM_HOST_TRIPLE@"
 config.target_triple            = "@TARGET_TRIPLE@"
 config.use_target               = bool("@LIBCXXABI_TARGET_TRIPLE@")
 config.sysroot                  = "@LIBCXXABI_SYSROOT@"
 config.gcc_toolchain            = "@LIBCXXABI_GCC_TOOLCHAIN@"
-config.cxx_ext_threads          = "@LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY@"
+config.cxx_ext_threads          = @LIBCXXABI_BUILD_EXTERNAL_THREAD_LIBRARY@
 
 # Let the main config do the real work.
 lit_config.load_config(config, "@LIBCXXABI_SOURCE_DIR@/test/lit.cfg")