Compile time filesystem access?
Marco Leise
Marco.Leise at gmx.de
Mon Jan 30 09:30:49 PST 2012
Am 30.01.2012, 15:24 Uhr, schrieb Manu <turkeyman at gmail.com>:
> Here's another one I'm endlessly wishing I had in C.
> I want to know if a library is present, and automatically disable
> non-vital
> features if it isn't.
> It shits me to tears when I can't build something because a non-vital
> dependant lib is not available for a given platform or just not wanted.
A library is some .dll/.so in this case ?
If you know it exists only on a certain platform: use version(Platform)
If it _may_ be there, then compile the feature in, but load and check the
library at runtime like you would do with a plugin.
This sounds like what has been solved with configure scripts long ago. If
you ever built e.g. GDC or most other Linux programs, they come with a
little script that allows you to preconfigure your build process and takes
care of linking to the different available libraries.
./configure --disable-libDontUseMe
I never wrote one myself though...
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