From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yann E. MORIN Date: Sat, 4 Aug 2018 00:06:17 +0200 Subject: [Buildroot] [PATCH 0/3] linux: drop dependency on host-{bison, flex} Message-ID: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Hello All! host{bison,flex} are only needed to build the kconfig parser. The kconfig parser is not part of any host tool that would be used by any other package; instead, it is purely internal to the kernel, and are only used to generate the .config file. As such, we don't care much what version of bison or flex are used to generate the parser; those comonly available in the distros are good enough for the task. So, add bison and flex to the list of pre-requisites, check for them as part of the dependencies check, and finally drop the host variants from linux' dependencies. This series implements the solution discussed in this thread, with suggestion by Thomas and Arnout (same thread, span three months): http://lists.busybox.net/pipermail/buildroot/2018-May/221243.html http://lists.busybox.net/pipermail/buildroot/2018-July/226840.html http://lists.busybox.net/pipermail/buildroot/2018-August/226971.html Eventually, when we update our own version of kconfig, we may decide to also drop the generated parser, or keep bundling them. If we go the former route, we'll have to revisit how we check for bison and flex, so it also works even in the face of an unconfigured tree. But that can be done then. Note that this series does conflict with one I sent earlier: https://patchwork.ozlabs.org/project/buildroot/list/?series=59249 Probaby we want this one to be applied first, and leave the other for later (linux-4.18 is not cwevenyet out yet, and probably won't be before we freeze for 2018.08 anyway). Regards, Yann E. MORIN. The following changes since commit 81ea4a243b63d7bb1fec580910c553af4ae072c1 package/lttng-tools: bump version to 2.10.5 (2018-08-01 14:28:30 +0200) are available in the git repository at: git://git.buildroot.org/~ymorin/git/buildroot.git for you to fetch changes up to 0c44ca5ddc27dfe13152a08b4bdd48ce3b8599dc linux: drop dependency on host-{bison,flex} (2018-08-03 23:32:14 +0200) ---------------------------------------------------------------- Yann E. MORIN (3): docs/manual: add flex+bison to pre-requisites support/dependencies: also check for flex+bison linux: drop dependency on host-{bison,flex} docs/manual/prerequisite.txt | 3 ++- linux/linux.mk | 2 +- support/dependencies/dependencies.sh | 6 +++++- 3 files changed, 8 insertions(+), 3 deletions(-) -- .-----------------.--------------------.------------------.--------------------. | Yann E. MORIN | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: | | +33 662 376 056 | Software Designer | \ / CAMPAIGN | ___ | | +33 223 225 172 `------------.-------: X AGAINST | \e/ There is no | | http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL | v conspiracy. | '------------------------------^-------^------------------^--------------------'