[Buildroot] [PATCH] musl: add a sys/queue.h implementation

Sergio Prado sergio.prado at e-labworks.com
Tue Dec 1 21:15:56 UTC 2015


2015-12-01 18:34 GMT-02:00 Arnout Vandecappelle <arnout at mind.be>:

> On 01-12-15 21:17, Jörg Krause wrote:
> > Hi all,
> >
> > On Mo, 2015-11-30 at 21:02 -0200, Sergio Prado wrote:
> >> Musl does not provide a 'sys/queue.h' implementation, and this has
> >> been
> >> a problem for packages that depend on it.
> >>
> >> So lets create a package called sys-queue that will install
> >> 'sys/queue.h'
> >> in the staging directory when enabled.
> >>
> >> Musl toolchain and external toolchain packages will depend on this
> >> package, so that 'sys/queue.h' will be always installed when
> >> compiling
> >> with a musl based toolchain.
> >>
> >
> > Maybe we can handle this similiar to the gettext integration and define
> > a BR2_NEEDS_SYS_QUEUE for toolchains not providing a queue library.
> >
> > Packages that need a queue implementation can use 'select
> > BR2_PACKAGE_NETBSD_QUEUE if BR2_NEEDS_SYS_QUEUE' in their Config.in
> > file and add a '$(if $(BR2_NEEDS_SYS_QUEUE),netbsd-queue)' to their
> > dependencies in the .mk file.
>
>  This would add quite a lot of complexity. Unconditionally installing
> sys/queue.h for musl libraries is really a lot simpler.
>
> >
> > This means we have a package 'netbsd-queue' with the sources of the
> > NetBSD project you proposed. Note, there exists more implementations of
> > the queue library, e.g. OpenBSD, Apple, so I would prefer to use the
> > name of the implementation as there is no *the* sys/queue.h.
>
>  That's a good idea. Not that I expect we'll ever carry another queue
> implementation (actually we already have two: uClibc and glibc).
>

I liked the idea. I'll rename the package to netbsd-queue.


>  Regards,
>  Arnout
>
> >
> > Furthermore, we allow a package to use, for whatever reasons, to select
> > a different queue implementation.
> >
> > On the other hand, maybe it is to confusing for the package maintainer
> > to have different options for a queue library, so we just provide a
> > default package named 'sys-queue' using the sources of NetBSD?
> >
> > Best regards
> > Jörg Krause
> > _______________________________________________
> > buildroot mailing list
> > buildroot at busybox.net
> > http://lists.busybox.net/mailman/listinfo/buildroot
> >
>
>
> --
> Arnout Vandecappelle                          arnout at mind be
> Senior Embedded Software Architect            +32-16-286500
> Essensium/Mind                                http://www.mind.be
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>
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