diff options
| -rw-r--r-- | kde-modules/KDECompilerSettings.cmake | 29 |
1 files changed, 6 insertions, 23 deletions
diff --git a/kde-modules/KDECompilerSettings.cmake b/kde-modules/KDECompilerSettings.cmake index 5d973a58..2311d30f 100644 --- a/kde-modules/KDECompilerSettings.cmake +++ b/kde-modules/KDECompilerSettings.cmake @@ -374,35 +374,18 @@ if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU") if (__KDE_HAVE_GCC_VISIBILITY AND GCC_IS_NEWER_THAN_4_1 AND NOT _GCC_COMPILED_WITH_BAD_ALLOCATOR AND NOT WIN32) - - set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=hidden") - # TODO: this variable is not documented and not used anywhere # added by Thiago here http://quickgit.kde.org/index.php?p=kdelibs.git&a=commitdiff&h=6bb4ef06259281d643d410cc4e84cd40bf4cd43f # and moved by Thiago into this extra variable here: http://quickgit.kde.org/index.php?p=kdelibs.git&a=commitdiff&h=a47300bd88435735bca6518926bc6c0e4c6cd708 # set (KDE4_C_FLAGS "-fvisibility=hidden") -# TODO: get the following information from QtConfig.cmake - -# # check that Qt defines Q_DECL_EXPORT as __attribute__ ((visibility("default"))) -# # if it doesn't and KDE compiles with hidden default visibiltiy plugins will break - set(_source "#include <QtCore/QtGlobal>\n int main()\n {\n #ifndef QT_VISIBILITY_AVAILABLE \n #error QT_VISIBILITY_AVAILABLE is not available\n #endif \n }\n") - set(_source_file ${CMAKE_BINARY_DIR}/CMakeTmp/check_qt_visibility.cpp) - file(WRITE "${_source_file}" "${_source}") - set(_include_dirs "-DINCLUDE_DIRECTORIES:STRING=${QT_INCLUDES}") - - set (CMAKE_CXX_FLAGS_SAVED "${CMAKE_CXX_FLAGS}") - # If Qt is built with reduce-relocations (The default) we need to add -fPIE here. - set (CMAKE_CXX_FLAGS "${Qt5Core_EXECUTABLE_COMPILE_FLAGS}") - - try_compile(_compile_result ${CMAKE_BINARY_DIR} ${_source_file} CMAKE_FLAGS "${_include_dirs}" COMPILE_OUTPUT_VARIABLE _compile_output_var) - - set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS_SAVED}") + if (TARGET Qt5::Core) + if(NOT QT_VISIBILITY_AVAILABLE) + message(FATAL_ERROR "Qt compiled without support for -fvisibility=hidden. This will break plugins and linking of some applications. Please fix your Qt installation (try passing --reduce-exports to configure).") + endif() + endif() - if(NOT _compile_result) - message(STATUS "${_compile_output_var}") - message(STATUS "Qt compiled without support for -fvisibility=hidden. This will break plugins and linking of some applications. Please fix your Qt installation (try passing --reduce-exports to configure).") - endif(NOT _compile_result) + set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=hidden") if (GCC_IS_NEWER_THAN_4_2) set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility-inlines-hidden") |