bug#43679: [PATCH v2 0/5] Add '--with-c-toolchain'

["Ludovic Courtès" <ludovic.courtes@inria.fr>]

Hi!

Ludovic Courtès <ludo@gnu.org> skribis:

> This is v2 of this patch, with these changes:
>
>   1. ‘with-toolchain’ is replaced by ‘with-c-toolchain’ everywhere,
>      with the understanding that it’s about the C/C++ toolchain
>      in practice.  In the end I’m sympathetic with the argument
>      that C/C++ don’t have a monopoly on toolchains.  ;-)
>
>   2. ‘--with-c-toolchain=PACKAGE=TOOLCHAIN’ rebuilds not just
>      PACKAGE with TOOLCHAIN, but also everything above PACKAGE
>      with TOOLCHAIN (in v1, only PACKAGE was rebuilt with TOOLCHAIN
>      but everything above it had to be rebuilt anyway.)
>
>      The main motivation here is to reduce the changes that we’re
>      introducing ABI incompatibilities that users would have to work
>      around by passing on ‘--with-c-toolchain’ for each package in
>      the chain.  I think it also more closely matches user
>      expectations: when you see things are being rebuilt, you’re
>      likely to think that’s because they’re rebuilt with the new
>      toolchain, not the default one.
>
> Feedback welcome!
>
> Ludo’.
>
> Ludovic Courtès (5):
>   gnu: gcc-toolchain: Add 'GUIX_LOCPATH' to the search paths.
>   gnu: clang-toolchain: Add 'GUIX_LOCPATH' to the search paths.
>   gnu: clang-toolchain: Create 'cc' and 'c++' symlinks.
>   packages: Add 'package-with-c-toolchain'.
>   guix build: Add '--with-c-toolchain'.

Pushed as a2ed00f79fd5bf69c6cca3fa7bdc62726bf848fa!

Ludo’.