On 25 February 2015 at 21:42, Richard Hughes <hughsi...@gmail.com> wrote:
> On 25 February 2015 at 21:09, Elle Stone <ellest...@ninedegreesbelow.com>
> wrote:
>> It would be nice to have a function that returns the library version at
>> runtime (not just a header define). The reason is to prevent certain dll
>> problems with Windows, by checking that the actually used library is the
>> right one.
>
> Yes, this would be awesome for colord too; I'm happy to help with a
> patch if required.
Another "yes" from me.
Some libraries have a nice feature: the libfoo_init() function is
actually a macro, defined something like this:
#define libfoo_init () ( \
(LIBFOO_API_VERSION < libfoo_get_api_version ()) ? ( \
fprintf (stderr, "library / header mismatch\n"), \
-1 \
) : \
libfoo_real_init () \
)
ie. on startup it checks that the library that the program is linked
with is compatible with the headers that the calling program was built
against.
John
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