diff options
Diffstat (limited to 'kde-modules')
| -rw-r--r-- | kde-modules/KDECompilerSettings.cmake | 90 |
1 files changed, 46 insertions, 44 deletions
diff --git a/kde-modules/KDECompilerSettings.cmake b/kde-modules/KDECompilerSettings.cmake index c07b8dc9..b7729a5c 100644 --- a/kde-modules/KDECompilerSettings.cmake +++ b/kde-modules/KDECompilerSettings.cmake @@ -138,6 +138,14 @@ if (WIN32) # CACHE STATIC "MSVC IDE Run path" FORCE) # endif() + # TODO: do we really want to have this line here ? Is it actually needed ? + # we prefer to use a different postfix for debug libs only on Windows + # does not work atm + set(CMAKE_DEBUG_POSTFIX "") + + # we don't support anything below w2k and all winapi calls are unicodes + set( _KDE4_PLATFORM_DEFINITIONS -D_WIN32_WINNT=0x0501 -DWINVER=0x0501 -D_WIN32_IE=0x0501 -DUNICODE ) + endif (WIN32) @@ -150,21 +158,6 @@ endif (WIN32) # set(_KDE4_PLATFORM_INCLUDE_DIRS ${_KDE4_PLATFORM_INCLUDE_DIRS} ${X11_INCLUDE_DIR} ) # endif () -if(CYGWIN) - message(FATAL_ERROR "Cygwin is NOT supported, use mingw or MSVC.") -endif(CYGWIN) - - -if(WIN32) -# TODO: do we really want to have this line here ? Is it actually needed ? - # we prefer to use a different postfix for debug libs only on Windows - # does not work atm - set(CMAKE_DEBUG_POSTFIX "") - - # we don't support anything below w2k and all winapi calls are unicodes - set( _KDE4_PLATFORM_DEFINITIONS -D_WIN32_WINNT=0x0501 -DWINVER=0x0501 -D_WIN32_IE=0x0501 -DUNICODE ) -endif() - # This will need to be modified later to support either Qt/X11 or Qt/Mac builds if (APPLE) @@ -178,6 +171,9 @@ endif() if ("${CMAKE_SYSTEM_NAME}" MATCHES Linux OR "${CMAKE_SYSTEM_NAME}" STREQUAL GNU) + # _BSD_SOURCE: is/was needed by glibc for snprintf to be available when building C files. + # See commit 4a44862b2d178c1d2e1eb4da90010d19a1e4a42c. + set ( _KDE4_PLATFORM_DEFINITIONS -D_XOPEN_SOURCE=500 -D_BSD_SOURCE -D_GNU_SOURCE) endif() @@ -185,23 +181,21 @@ endif() if (UNIX) set ( _KDE4_PLATFORM_DEFINITIONS ${_KDE4_PLATFORM_DEFINITIONS} -D_LARGEFILE64_SOURCE) -# TODO: is this test really necessary, or is it good enough to simply add -D_FILE_OFFSET_BITS=64 , as done below ? -# check_cxx_source_compiles(" -# #include <sys/types.h> -# /* Check that off_t can represent 2**63 - 1 correctly. -# We can't simply define LARGE_OFF_T to be 9223372036854775807, -# since some C++ compilers masquerading as C compilers -# incorrectly reject 9223372036854775807. */ -# #define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) -# -# int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 && LARGE_OFF_T % 2147483647 == 1) ? 1 : -1]; -# int main() { return 0; } -# " _OFFT_IS_64BIT) -# -# if (NOT _OFFT_IS_64BIT) -# set ( _KDE4_PLATFORM_DEFINITIONS "${_KDE4_PLATFORM_DEFINITIONS} -D_FILE_OFFSET_BITS=64") -# endif (NOT _OFFT_IS_64BIT) - set ( _KDE4_PLATFORM_DEFINITIONS ${_KDE4_PLATFORM_DEFINITIONS} -D_FILE_OFFSET_BITS=64) +# are there platforms where this is not the case ? + check_cxx_source_compiles(" +#include <sys/types.h> + /* Check that off_t can represent 2**63 - 1 correctly. + We can't simply define LARGE_OFF_T to be 9223372036854775807, + since some C++ compilers masquerading as C compilers + incorrectly reject 9223372036854775807. */ +#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) + int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 && LARGE_OFF_T % 2147483647 == 1) ? 1 : -1]; + int main() { return 0; } +" _OFFT_IS_64BIT) + + if (NOT _OFFT_IS_64BIT) + set ( _KDE4_PLATFORM_DEFINITIONS ${_KDE4_PLATFORM_DEFINITIONS} -D_FILE_OFFSET_BITS=64) + endif () endif (UNIX) @@ -332,8 +326,8 @@ if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU") # gcc under Windows if (MINGW) - set (CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--export-all-symbols") - set (CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -Wl,--export-all-symbols") + set (CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--export-all-symbols -Wl,--disable-auto-import") + set (CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -Wl,--export-all-symbols -Wl,--disable-auto-import") endif () check_cxx_compiler_flag(-fPIE __KDE_HAVE_FPIE_SUPPORT) @@ -389,18 +383,26 @@ if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU") # 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}") -# -# try_compile(_compile_result ${CMAKE_BINARY_DIR} ${_source_file} CMAKE_FLAGS "${_include_dirs}" COMPILE_OUTPUT_VARIABLE _compile_output_var) -# -# if(NOT _compile_result) -# 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(NOT _compile_result) + 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 "${CMAKE_CXX_FLAGS_SAVED}") + + if(NOT _compile_result) + message(STATUS "${_compile_output_var}") + 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(NOT _compile_result) if (GCC_IS_NEWER_THAN_4_2) set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility-inlines-hidden") |