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The KMS/DRM video driver of SDL2 can currently only be enabled when mesa3d is the OpenGL provider, as the option has a dependency on BR2_PACKAGE_MESA3D_GBM. Now that we have a libgbm virtual package and BR2_PACKAGE_HAS_LIBGBM, we can do better. However, this has uncovered a number of additional related issues that are resolved at the same time. Here are some details: * the 'depends on BR2_PACKAGE_LIBDRM' is changed to a select, as we normally do for library dependencies. Due to this, we inherit a BR2_TOOLCHAIN_HAS_THREADS dependency. * the 'depends on BR2_PACKAGE_MESA3D_GBM' is changed to 'depends on BR2_PACKAGE_HAS_LIBGBM', and the 'mesa3d' dependency is changed to 'libgbm'. * the KMS/DRM video driver in SDL2 needs EGL (hence the additional 'depends on BR2_PACKAGE_HAS_LIBEGL' and the libegbl dependency is added in the .mk file). But in turn, EGL support is only checked when either OpenGL or OpenGLES support is enabled in SDL2, which is why we add logic to select the appropriate options. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> [yann.morin.1998@free.fr: - fix dependency on comment (invert the symbol dependencies) - split comment ] Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr> |
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| README | ||
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 OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches