[cmake-developers] try_compile does not work for linker flags?

[Stephen Kelly]

Brad King wrote:

> On 10/7/2011 7:21 AM, Stephen Kelly wrote:
>> I have a check for the Wl,--no-undefined flag in the test, and on some
>> platforms the check passes (it seems), but the test fails later.
> 
> Many linkers simply warn about an unused flag and ignore it.
> It's hard to test for them.  Unfortunately I don't have time
> now to dig into this to be of further help.
> 

Ok, I've added it to the CheckCXXCompilerFlag unit test in the topic, so 
hopefully that will show the warnings to check for (if any).