Re: [Boost-build] How to make clang toolset use custom archiver and ranlib from user-config.jam?

Subject: Re: [Boost-build] How to make clang toolset use custom archiver and ranlib from user-config.jam?
From: Frédéric Bron (frederic.bron_at_[hidden])
Date: 2017-04-04 03:36:25

Hi,
Who knows boost build and can help?
Regards,
Frédéric

2017-03-22 14:05 GMT+01:00 Frédéric Bron <frederic.bron_at_[hidden]>:
> Hi,
>
> ar and ranlib cannot be customized for clang toolset as they are for
> gcc which makes it difficult to use in a cross-compilation
> environment. When cross-compiling from linux to windows, I can have in
> my user-config.jam:
>
> using gcc : : i686-w64-mingw32-g++-6.3.0 :
> <archiver>i686-w64-mingw32-ar <ranlib>i686-w64-mingw32-ranlib ;
>
> With the clang toolset, this does not work, archiver and ranlib
> options are ignored.
>
> This is why: here is what we find in tools/build/src/tools/clang-darwin.jam
>
> # Default value. Mostly for the sake of clang-linux
> # that inherits from gcc, but does not has the same
> # logic to set the .AR variable. We can put the same
> # logic in clang-linux, but that's hardly worth the trouble
> # as on Linux, 'ar' is always available.
> .AR = ar ;
>
> ...
>
> actions piecemeal archive
> {
>   "$(.AR)" $(AROPTIONS) rc "$(<)" "$(>)"
>   "ranlib" -cs "$(<)"
> }
>
> Unfortunately, I do not understand the language of jam files so the
> only thing I can do for the time being is to manually edit the file
> and replace ar and ranlib by their cross-compiler counterparts but I
> am not able to change it so that the archiver and ranlib option can be
> used.
>
> Could somebody do that or give hints on how I shoud do it?
>
> Frédéric