Re: [Buildroot] [RFC v3 1/2] package/pkg-meson.mk: support fortran cross-compilation

["Yann E. MORIN" <yann.morin.1998@free.fr>]

Thomas, All,

On 2022-08-07 00:13 +0200, Thomas Petazzoni spake thusly:
[--SNIP--]
> Now, on to the open issue which explains why I have added Yann in Cc.
> We are currently setting the C++ compiler and Fortran compiler path in
> Meson's cross-compilation.conf unconditionally... even when the
> toolchain has no C++ or Fortran support. So it means we're pointing to
> compilers that don't exist.

I think this is fine. They don't exist, so they can't be run, so meson
will not inadvertently be able to build a C++/Fortran/... program and we
will notice the issue.

> Ideally, the cross-compilation.conf should be generated with no
> reference to a C++ or Fortran compiler, or a /bin/false reference, and
> ditto for the CXXFLAGS/FCFLAGS when there is no C++ or Fortran support.

In the past, we used to use false as a C++ compiler (but not for meson
specifically), and it turned out that that caused quite some
hard-to-understand issues, see 4cd1ab15886a (core: alternate solution to
disable C++).

I'll ask the meson guys in irc://irc.oftc.net/#mesonbuild and se what
they have to say and suggest.

Regards,
Yann E. MORIN.

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 561 099 427 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'
_______________________________________________
buildroot mailing list
buildroot@buildroot.org
https://lists.buildroot.org/mailman/listinfo/buildroot