Give the compile flags an EXECUTABLE_ prefix.

The fPIE flag should only be used with executables.

Change-Id: If799ae4a7fe2492af3aac67651659a52d365024a
Reviewed-by: Alexander Neundorf <neundorf@kde.org>
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>

mkspecs/cmake/Qt5BasicConfig.cmake.in

@@ -21,10 +21,14 @@ foreach(_module_dep ${_Qt5_MODULE_DEPENDENCIES})
     list(APPEND Qt5$${CMAKE_MODULE_NAME}_INCLUDE_DIRS ${Qt5${_module_dep}_INCLUDE_DIRS})
     list(APPEND Qt5$${CMAKE_MODULE_NAME}_DEFINITIONS ${Qt5${_module_dep}_DEFINITIONS})
     list(APPEND Qt5$${CMAKE_MODULE_NAME}_COMPILE_DEFINITIONS ${Qt5${_module_dep}_COMPILE_DEFINITIONS})
+    list(APPEND Qt5$${CMAKE_MODULE_NAME}_EXECUTABLE_COMPILE_FLAGS ${Qt5${_module_dep}_EXECUTABLE_COMPILE_FLAGS})
 endforeach()
 list(REMOVE_DUPLICATES Qt5$${CMAKE_MODULE_NAME}_INCLUDE_DIRS)
 list(REMOVE_DUPLICATES Qt5$${CMAKE_MODULE_NAME}_DEFINITIONS)
 list(REMOVE_DUPLICATES Qt5$${CMAKE_MODULE_NAME}_COMPILE_DEFINITIONS)
+if (Qt5$${CMAKE_MODULE_NAME}_EXECUTABLE_COMPILE_FLAGS)
+  list(REMOVE_DUPLICATES Qt5$${CMAKE_MODULE_NAME}_EXECUTABLE_COMPILE_FLAGS)
+endif()
 
 if (NOT _Qt5$${CMAKE_MODULE_NAME}_target)
     set(_Qt5$${CMAKE_MODULE_NAME}_target 1)

src/corelib/Qt5CoreConfigExtras.cmake.in

@@ -9,7 +9,7 @@ set(QT_RCC_EXECUTABLE \"${_qt5_corelib_install_prefix}/$$CMAKE_BIN_DIR/rcc$$CMAK
 list(APPEND Qt5Core_INCLUDE_DIRS \"${_qt5_corelib_install_prefix}/mkspecs/default\")
 
 if (NOT \"$${CMAKE_ADD_FPIE_FLAGS}\" STREQUAL \"\")
-    set(Qt5Core_COMPILE_FLAGS "-fPIE")
+    set(Qt5Core_EXECUTABLE_COMPILE_FLAGS "-fPIE")
 endif()
 
 if (NOT \"$$QT_NAMESPACE\" STREQUAL \"\")

tests/manual/cmake/fail4/CMakeLists.txt

@@ -16,5 +16,7 @@ qt5_wrap_cpp(moc_files myobject.h)
 # in the add_executable call.
 qt5_add_resources(rcc_files "pass4.qrc" OPTIONS -binary)
 
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${Qt5Core_EXECUTABLE_COMPILE_FLAGS}")
+
 add_executable(myobject myobject.cpp ${moc_files} ${rcc_files})
 target_link_libraries(myobject ${Qt5Core_LIBRARIES})

tests/manual/cmake/fail5/CMakeLists.txt

@@ -13,5 +13,7 @@ add_definitions(${Qt5Core_DEFINITIONS})
 # causing a compile failure. -> Options work
 qt5_wrap_cpp(moc_files myobject.h OPTIONS -i)
 
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${Qt5Core_EXECUTABLE_COMPILE_FLAGS}")
+
 add_executable(myobject myobject.cpp ${moc_files})
 target_link_libraries(myobject ${Qt5Core_LIBRARIES})

tests/manual/cmake/pass(needsquoting)6/CMakeLists.txt

@@ -16,5 +16,7 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
 qt5_wrap_cpp(moc_files mywidget.h)
 qt5_wrap_ui(ui_files mywidget.ui)
 
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${Qt5Widgets_EXECUTABLE_COMPILE_FLAGS}")
+
 add_executable(mywidget mywidget.cpp ${moc_files} ${ui_files})
 target_link_libraries(mywidget ${Qt5Widgets_LIBRARIES})

tests/manual/cmake/pass1/CMakeLists.txt

@@ -18,7 +18,23 @@ macro(qt5_use_package _target _package)
         # set_property(TARGET ${_target} APPEND PROPERTY INCLUDE_DIRECTORIES ${Qt5${_package}_INCLUDE_DIRS})
         include_directories(${Qt5${_package}_INCLUDE_DIRS})
         set_property(TARGET ${_target} APPEND PROPERTY COMPILE_DEFINITIONS ${Qt5${_package}_COMPILE_DEFINITIONS})
-        set_property(TARGET ${_target} APPEND PROPERTY COMPILE_FLAGS ${Qt5${_package}_COMPILE_FLAGS})
+
+        # We can't just append to the COMPILE_FLAGS property. That creats a ';' separated list
+        # which breaks the compile commmand line.
+        # Ensure non-duplication here manually instead.
+        get_property(_taget_type TARGET ${_target} PROPERTY TYPE)
+        if ("${_taget_type}" STREQUAL "EXECUTABLE")
+          get_target_property(_flags ${_target} COMPILE_FLAGS)
+          if (_flags)
+            list(APPEND _flags ${Qt5${_package}_EXECUTABLE_COMPILE_FLAGS})
+            list(REMOVE_DUPLICATES _flags)
+          else()
+            set(_flags ${Qt5${_package}_EXECUTABLE_COMPILE_FLAGS})
+          endif()
+          if (_flags)
+            set_target_properties(${_target} PROPERTIES COMPILE_FLAGS ${_flags})
+          endif()
+        endif()
     else()
         message(FATAL_ERROR "NOT FOUND: Qt5${_package}")
     endif()

tests/manual/cmake/pass2/CMakeLists.txt

@@ -13,5 +13,7 @@ qt5_wrap_cpp(moc_files myobject.h)
 
 qt5_add_resources(rcc_files "pass2.qrc")
 
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${Qt5Core_EXECUTABLE_COMPILE_FLAGS}")
+
 add_executable(myobject myobject.cpp ${moc_files} ${rcc_files})
 target_link_libraries(myobject ${Qt5Core_LIBRARIES})

tests/manual/cmake/pass3/CMakeLists.txt

@@ -15,5 +15,7 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
 qt5_wrap_cpp(moc_files mywidget.h)
 qt5_wrap_ui(ui_files mywidget.ui)
 
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${Qt5Widgets_EXECUTABLE_COMPILE_FLAGS}")
+
 add_executable(mywidget mywidget.cpp ${moc_files} ${ui_files})
 target_link_libraries(mywidget ${Qt5Widgets_LIBRARIES})

tests/manual/cmake/pass7/CMakeLists.txt

@@ -8,4 +8,6 @@ find_package(Qt5Core REQUIRED)
 include_directories(${Qt5Core_INCLUDE_DIRS})
 add_definitions(${Qt5Core_DEFINITIONS})
 
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${Qt5Core_EXECUTABLE_COMPILE_FLAGS}")
+
 add_executable(myobject main.cpp)