[Cffi-devel] Cannot load cffi-libffi

[Luís Oliveira]

On Sun, Nov 23, 2014 at 12:27 AM, Stelian Ionescu <sionescu at cddr.org> wrote:
> Most often than not, but I know of cases where the headers for the
> current version of a library are put directly under /usr/include,
> whereas the older versions are in subdirectories of /usr/include and
> require pkg-config, and therefore if pkg-config is not used, the CFFI
> code will be compiled against the wrong(newer) library. IIRC, this is
> the case with BerkeleyDB and Postgres's libpq on some distributions.

OK, that makes sense. In this particular case, though, we're not
specifying any version:

    #+linux
    (pkg-flags "libffi")

How are versions specified in pkg-config and how do they relate with
the major version in the .so file name? (I googled a little bit for
examples but couldn't find any.)

-- 
Luís Oliveira
http://kerno.org/~luis/