[cmake-developers] CheckSymbolExists is unreliable

[Rolf Eike Beer]

Am Freitag, 6. Januar 2012, 09:56:53 schrieb Brad King:
> On 1/5/2012 8:25 AM, Brad King wrote:
> >> So I will go and fix some small typos I've found in the existing tests,
> >> repush and merge to next, so we see if Check*SymbolExists will work.
> > 
> > Sounds good.
> 
> The new CheckSymbolExists test works everywhere!

This has changed. It fails now for vs11-x64 on amber10 and for Linux64-
bullseye-cov on hythloth. amber10 seems to have an unrelated, general problem. 
What's wrong with the bullseye I have no idea, but this goes wrong for the C++ 
test and some others, too.

> However the CheckCXXSymbolExist test fails:

For the bullseye (see above) and because the dummy executable fails for 
Borland C++. "return errno;" doesn't work in C++ mode, I have no idea what's 
that for a screwup. And especially why searching for that symbol using 
CheckCXXSymbolExists works but using it doesn't.

Eike
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 198 bytes
Desc: This is a digitally signed message part.
URL: <http://public.kitware.com/pipermail/cmake-developers/attachments/20120107/51fc81b6/attachment.sig>