Add TC_DIR to CMake

Author: Mingzhe Li

CMakeLists.txt

@@ -27,6 +27,8 @@ message(STATUS "CMAKE_INSTALL_PREFIX is ${CMAKE_INSTALL_PREFIX}")
 
 add_subdirectory(third-party/pybind11)
 
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DTC_DIR=\"\\\"$ENV{TC_DIR}\\\"\" ")
+
 set(LLVM_DIR ${CLANG_PREFIX}/lib/cmake/llvm)
 message(STATUS "Looking for LLVM in ${LLVM_DIR}")
 find_package(LLVM REQUIRED LLVM)