9f99ec21e5
The BR2_ARCH_HAS_ATOMICS was added because on ARC, atomic instructions may not be provided by the architecture and therefore the compiler does not provide the __sync_*() built-ins. However, since then, icu was changed and is now able to use C++11 atomics, or even no atomic operations at all. In fact, icu will: * If possible, it will use C++11 atomics, which internally rely on the __atomic built-ins. These are available since gcc 4.7, and all architectures provide it. On some architectures, you *must* link with libatomic, on some other architectures, they are available built-in, but in all cases, linking against libatomic does not harm. Thanks to this, even ARC with no atomic support (which was the original reason for adding the BR2_ARCH_HAS_ATOMICS) dependency builds fine, provided -latomic is added to LIBS. * If C++11 atomics are not available, then it falls back to __sync_*() built-ins, which allows compilers older than 4.7 to be supported. * If really no atomic mechanism is available, then it falls back to a basic implementation based on a mutex. Conclusion: - The BR2_ARCH_HAS_ATOMICS dependency is no longer needed. - We need to link with -latomic when gcc >= 4.7 is used. Note that reverse dependencies of icu are also changed accordingly. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
24 lines
740 B
Plaintext
24 lines
740 B
Plaintext
config BR2_PACKAGE_QT5WEBKIT
|
|
bool "qt5webkit"
|
|
select BR2_PACKAGE_QT5BASE
|
|
select BR2_PACKAGE_QT5BASE_ICU
|
|
select BR2_PACKAGE_QT5BASE_GUI
|
|
select BR2_PACKAGE_SQLITE
|
|
select BR2_PACKAGE_XLIB_LIBXEXT if BR2_PACKAGE_QT5BASE_XCB
|
|
select BR2_PACKAGE_XLIB_LIBXRENDER if BR2_PACKAGE_QT5BASE_XCB
|
|
# This module does not support static linking
|
|
depends on !BR2_STATIC_LIBS
|
|
depends on BR2_PACKAGE_QT5_JSCORE_AVAILABLE
|
|
depends on !BR2_BINFMT_FLAT # icu
|
|
help
|
|
Qt is a cross-platform application and UI framework for
|
|
developers using C++.
|
|
|
|
This package corresponds to the qt5webkit module.
|
|
|
|
This package has been tagged as deprecated since version
|
|
5.5.0 and should be replaced by Qt WebEngine module in
|
|
new design.
|
|
|
|
http://qt.io
|