cmake_minimum_required(VERSION 3.5) project(Qt4Targets) cmake_policy(SET CMP0020 NEW) find_package(Qt4 REQUIRED) set(CMAKE_AUTOMOC ON) set(CMAKE_INCLUDE_CURRENT_DIR ON) add_executable(Qt4Targets WIN32 main.cpp) target_link_libraries(Qt4Targets Qt4::QtGui) if (WIN32) if (TARGET Qt4::QAxServer) add_executable(activeqtexe WIN32 activeqtexe.cpp) set_property(TARGET activeqtexe PROPERTY QT4_NO_LINK_QTMAIN ON) target_link_libraries(activeqtexe Qt4::QAxServer Qt4::QtGui) endif() endif() # Qt4 moc does not support utf8 paths in _parameter files generated by # qt4_wrap_cpp and qt4_generate_moc # https://bugreports.qt.io/browse/QTBUG-35480 # Do a simple check if there is are non ASCII character in the build path string(REGEX MATCH "[^ -~]+" NON_ASCII_BDIR ${CMAKE_CURRENT_BINARY_DIR}) if(NON_ASCII_BDIR) message(WARNING "Build path contains non ASCII characters. Skipping Qt4 test.") return() endif() qt4_generate_moc(main_gen_test.cpp "${CMAKE_CURRENT_BINARY_DIR}/main_gen_test.moc" TARGET Qt4GenerateMacroTest ) add_executable(Qt4GenerateMacroTest WIN32 main_gen_test.cpp "${CMAKE_CURRENT_BINARY_DIR}/main_gen_test.moc") set_property(TARGET Qt4GenerateMacroTest PROPERTY AUTOMOC OFF) target_include_directories(Qt4GenerateMacroTest PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/interface") target_link_libraries(Qt4GenerateMacroTest Qt4::QtGui) qt4_wrap_cpp(moc_file mywrapobject.h TARGET Qt4WrapMacroTest ) add_executable(Qt4WrapMacroTest WIN32 main_wrap_test.cpp ${moc_file}) set_property(TARGET Qt4WrapMacroTest PROPERTY AUTOMOC OFF) target_include_directories(Qt4WrapMacroTest PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/interface") target_link_libraries(Qt4WrapMacroTest Qt4::QtGui) macro(test_incremental def) set(timeformat "%Y%j%H%M%S") try_compile(RESULT "${CMAKE_CURRENT_BINARY_DIR}/IncrementalMocBuild_${def}" "${CMAKE_CURRENT_SOURCE_DIR}/IncrementalMoc" IncrementalMoc CMAKE_FLAGS -D${def}=0 "-DQT_QMAKE_EXECUTABLE:FILEPATH=${QT_QMAKE_EXECUTABLE}" OUTPUT_VARIABLE output ) file(TIMESTAMP "${CMAKE_CURRENT_BINARY_DIR}/IncrementalMocBuild_${def}/moc_foo.cpp" tsvar_before "${timeformat}") if (NOT tsvar_before) message(SEND_ERROR "Unable to read timestamp from moc file from first build with -D${def}!\n" "try_compile output:\n${output}" ) endif() execute_process(COMMAND "${CMAKE_COMMAND}" -E sleep 2) # Ensure that the timestamp will change. try_compile(RESULT "${CMAKE_CURRENT_BINARY_DIR}/IncrementalMocBuild_${def}" "${CMAKE_CURRENT_SOURCE_DIR}/IncrementalMoc" IncrementalMoc CMAKE_FLAGS -D${def}=1 "-DQT_QMAKE_EXECUTABLE:FILEPATH=${QT_QMAKE_EXECUTABLE}" OUTPUT_VARIABLE output ) file(TIMESTAMP "${CMAKE_CURRENT_BINARY_DIR}/IncrementalMocBuild_${def}/moc_foo.cpp" tsvar_after "${timeformat}") if (NOT tsvar_after) message(SEND_ERROR "Unable to read timestamp from moc file from second build!\n" "try_compile output:\n${output}" ) endif() if (NOT tsvar_after GREATER tsvar_before) message(SEND_ERROR "Rebuild did not re-create moc file with -D${def}. Before: ${tsvar_before}. After: ${tsvar_after}") endif() endmacro() test_incremental(ADD_TARGET_DEF) test_incremental(ADD_DIR_DEF)