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e6a24e2446
Currently, we only support either Qt4 or gtk2, but OpenCV also
additionally supports Qt5 or gtk3, making for a choice of four
toolkits, one of: Qt4, Qt5, gtk3, gtk2 (and obviously, none).
Since Buildroot does not support coexistence of Qt4 and Qt5, we
can no longer select one and depend on the other, like so:
config BR2_PKG_OCV_WITH_QT4
bool "Qt4"
depends on !BR2_PKG_QT5
select BR2_PKG_QT
config BR2_PKG_OCV_WITH_QT5
bool "Qt5"
depends on !BR2_PKG_QT
select BR2_PKG_QT5
otherwise, we'd get a circular dependency chain in Kconfig, which would
complain with:
package/opencv/Config.in:57:error: recursive dependency detected!
package/opencv/Config.in:57: choice <choice> contains symbol BR2_PKG_OCV_WITH_QT5
package/opencv/Config.in:111: symbol BR2_PKG_OCV_WITH_QT5 depends on BR2_PKG_QT
package/qt/Config.in:5: symbol BR2_PKG_QT is selected by BR2_PKG_OCV_WITH_QT
package/opencv/Config.in:98: symbol BR2_PKG_OCV_WITH_QT is part of choice <choice>
Instead, we need to depend on either Qt version.
So, to have a consistent choice, we make all support for GUI toolkits
actually depend on the toolkit, rather than select it.
Signed-off-by: Samuel Martin <s.martin49@gmail.com>
[yann.morin.1998@free.fr: split-out the switch-selects-to-depends hunk
from the add-qt5 hunk]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at http://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on Freenode IRC.