4cf79d9b71
Cmake supports multiple generators. For now, Buildroot only uses the
venerable "GNU Makefile" generator, which generates Makefiles as the
build backend.
Cmake also has support for Ninja as a build backend, and provides the
corresponding generator. Ninja is a small build system with a focus on
speed. It is mainly used with the meson build system, but also cmake has
very good support for it.
Packages that are selecting Ninja (or over time another generator),
should also use the _BUILD_{ENV,OPTS} variables instead of the _MAKE
variables.
No _INSTALL{,_STAGING,_TARGET}_OPTS used so far, so reuse as cmake install opts:
$ grep '_INSTALL_OPTS' $(git grep -l -E '\$\(eval \$\((host-)?cmake-package))')
$ grep '_INSTALL_STAGING_OPTS' $(git grep -l -E '\$\(eval \$\((host-)?cmake-package))')
$ grep '_INSTALL_TARGET_OPTS' $(git grep -l -E '\$\(eval \$\((host-)?cmake-package))')
The _MAKE_{ENV,OPTS} are copied to _BUILD_{ENV,OPTS}, involved packages:
$ grep '_MAKE_ENV =' $(git grep -l -E '\$\(eval \$\((host-)?cmake-package))')
package/netopeer2/netopeer2.mk:NETOPEER2_MAKE_ENV = \
package/racehound/racehound.mk:RACEHOUND_MAKE_ENV = $(LINUX_MAKE_FLAGS)
(qt6, webkitgtk, and wpewebkit also match, but already use -Gninja)
$ grep '_MAKE_OPTS =' $(git grep -l -E '\$\(eval \$\((host-)?cmake-package))')
package/mariadb/mariadb.mk:HOST_MARIADB_MAKE_OPTS = import_executables
package/zeek/zeek.mk:HOST_ZEEK_MAKE_OPTS = binpac bifcl
Only "musepack" seems to overwrite MAKE to enforce -j1, so replace it:
$ grep '_MAKE =' $(git grep -l -E '\$\(eval \$\((host-)?cmake-package))')
package/musepack/musepack.mk:MUSEPACK_MAKE = $(MAKE1)
Signed-off-by: Thomas Devoogdt <thomas.devoogdt@barco.com>
Reviewed-by: John Keeping <john@metanate.com>
[yann.morin.1998@free.fr:
- switch to FOO_CMAKE_BACKEND = (make|ninja)
- use firstword of $(MAKE), not $(BR2_MAKE)
- explain why we use firstword of $(MAKE)
- update manual with the three new variables
- yweak commit log
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
|
||
|---|---|---|
| arch | ||
| board | ||
| boot | ||
| configs | ||
| docs | ||
| fs | ||
| linux | ||
| package | ||
| support | ||
| system | ||
| toolchain | ||
| utils | ||
| .checkpackageignore | ||
| .clang-format | ||
| .defconfig | ||
| .flake8 | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| .shellcheckrc | ||
| CHANGES | ||
| Config.in | ||
| Config.in.legacy | ||
| COPYING | ||
| DEVELOPERS | ||
| Makefile | ||
| Makefile.legacy | ||
| 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