Remove unused BUILD_DIR definition

Author: bugdea1er

tests/CMakeLists.txt

@@ -4,8 +4,6 @@ find_package(GTest)
 
 add_executable(${PROJECT_NAME} directory.cpp file.cpp)
 target_link_libraries(${PROJECT_NAME} tmp::tmp GTest::gtest_main)
-target_compile_definitions(${PROJECT_NAME}
-  PRIVATE BUILD_DIR="${CMAKE_CURRENT_BINARY_DIR}")
 
 # On some platforms (e.g. Windows) CMake doesn't write load paths properly
 # This solution to put outputs in the same directory is good enough

tests/meson.build

@@ -5,9 +5,6 @@ unit_test = executable(
   'directory.cpp',
   'file.cpp',
   dependencies: [gtest_main_dep, tmp_dep],
-  cpp_args: [
-    '-DBUILD_DIR="' + meson.current_build_dir() + '"',
-  ],
   build_by_default: false,
 )