Re: Can not work with libguile-2.0

[Andy Wingo <wingo@pobox.com>]

On Thu 17 Feb 2011 20:08, Mark Harig <idirectscm@aim.com> writes:

> The command listed in section 2.4 "Writing Guile Extensions"
> should follow the pattern used in section 2.3 "Linking Guile into
> Programs," namely, add the 'pkg-config' command to provide the
> appropriate command-line options for the preprocessor, compiler, and
> linker.

Really?  It doesn't seem to be necessary to actually link to libguile
there.

> In addition, the manual should mention that the environment
> variable 'PKG_CONFIG_PATH' needs to be set before invoking the
> compiler.  Something like the following needs to be added, along with
> some explanatory text:
>
>  $ export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:$PKG_CONFIG_PATH

Well that isn't quite right, as /usr/local/lib isn't the right place for
libguile-2.0 on many systems.  It's lib64 on my fedora machine.

I guess we will have to add a section on install prefixes, and the
relation between -rpath, libtool, PKG_CONFIG_PATH, and guile-config.
Then further compile/link examples can refer back (or forwards) to it.
Perhaps it would be best to assume that Guile is system-installed, and
note that if linking fails, see some section at the end of libguile.texi
that discusses these issues.

What do you think?

Andy
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