Re: [Tinycc-devel] Allow configuration of tcc libraries search path

[grischka]

Thomas Preud'homme wrote:
> First let's focus on multilib as you said. 

Actually I said "multilib" because you said "multilib".  Which
means that I've no idea really what it means.

> The requirement for multilib is suffix all path from search paths 
> (whatever are these search paths: include search path, library search 
> paths, etc…) by the multilib subdirectory, 

Okay, but then I think that tcc doesn't really have to know all
that either.  It is just a matter that you can configure as many
paths as you want in one CONFIG_option.

Which you have now with the colon separated strings.

There is also the addition of certain prefixes in tcc_split_path,
which you don't really need, I assume (and as such would conflict
with the spirit of tinyness ;).

So then it is just a matter of integrating the new feature into
existing code.

For example instead of

    tcc_add_library_path(s, CONFIG_TCC_CRT_PREFIX);
    tcc_add_library_path(s, CONFIG_SYSROOT CONFIG_TCC_LDDIR);
    tcc_add_library_path(s, CONFIG_SYSROOT "/usr/local"CONFIG_TCC_LDDIR);

I'd suggest:

    tcc_add_library_paths(s, CONFIG_TCC_LIBPATH);

with in tcc.h:

    #ifndef CONFIG_TCC_LIBPATH
    # define CONFIG_TCC_LIBPATH \
       CONFIG_TCC_CRT_PREFIX ":" \
       CONFIG_SYSROOT CONFIG_TCC_LDDIR ":" \
       CONFIG_SYSROOT "/usr/local"CONFIG_TCC_LDDIR);
    #endif

which brings us further to have all data in one place (and closer
to Rob Landley's approach from several years ago which is maybe or
maybe not a coincidence :).
    http://lists.gnu.org/archive/html/tinycc-devel/2011-07/msg00013.html

Plus you don't need CONFIG_TCC_EXTRA_LDDIR because you can simply
override CONFIG_TCC_LIBPATH.

--- grischka