Mathias Fröhlich wrote:
Hi,
On Monday 10 November 2008 16:29, Bill Hoffman wrote:
Can you describe exactly what you think autotools does here? I guess
most autotools tests use a try-compile to find a library. Is that what
you are referring to?
Yep.
If you want to link with a library you need to test if you can link with that
library.
If you test something different, you might then later be surprised, that
linking does not work ...
... and yes this takes more time than just testing for existence. But it is
way more correct ...
OK, so perhaps the FindFoo.cmake modules should always use a try-compile
to test the library that is found works with the current ABI. This
will likely slow things down quite a bit... This would require some
extra thought.... Perhaps the abi can be determined without a
try-compile, but I am not sure that would work on all platforms.
-Bill
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