find_program(LEXESIS_EXE Lexesis PATH "${CMAKE_CURRENT_SOURCE_DIR}/../../build/bin") add_custom_command(DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/keywordsLexer.lxs" COMMAND ${LEXESIS_EXE} ARGS -d "${CMAKE_CURRENT_BINARY_DIR}" "${CMAKE_CURRENT_SOURCE_DIR}/keywordsLexer.lxs" OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/KeywordsLexer.h" "${CMAKE_CURRENT_BINARY_DIR}/KeywordsLexer.cpp" ) include_directories("${CMAKE_CURRENT_BINARY_DIR}") add_executable(keywords EXCLUDE_FROM_ALL main.cpp "${CMAKE_CURRENT_BINARY_DIR}/KeywordsLexer.cpp" )