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package/meson installs a cross-compilation.conf file in $(HOST_DIR)/etc/meson, via TARGET_FINALIZE_HOOKS. package/pkg-cmake.mk installs a toolchainfile.cmake in $(HOST_DIR)/share/buildroot, via TOOLCHAIN_POST_INSTALL_STAGING_HOOKS. Both files have a similar concept, they describe some flags/paths needed for compilation using respective build systems. One difference is that the meson file is added for external compilation, from the SDK, while the cmake file is used internally in Buildroot. The 'problem' of using TARGET_FINALIZE_HOOKS for the meson file, is that it installs a 'host' file from target-finalize, which is conceptually incorrect since not just TARGET_DIR but also HOST_DIR is "regenerated" on a subsequent 'make' when everything was already built (i.e. only target-finalize is run). This can easily be fixed, by using the same hook as cmake uses, i.e. TOOLCHAIN_POST_INSTALL_STAGING_HOOKS. Note that actually even for cmake, TOOLCHAIN_POST_INSTALL_STAGING_HOOKS is not the best hook to install a host file. A better hook would have been TOOLCHAIN_POST_INSTALL_HOOKS, but this triggers only for 'host' packages, and 'toolchain' is treated as a 'target' package. Also, the hook (and therefore also the definition of PKG_MESON_INSTALL_CROSS_CONF) is moved to pkg-meson.mk, again to make it more similar to how it's done for cmake. Otherwise check-package complains that the meson package is setting variables that don't start with MESON_. Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com> Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
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. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches