[CMake] CMake 2.4.2 Cygwin shouldn't have -ldl

[Brandon J. Van Every]

Brad King wrote:
> Brandon J. Van Every wrote:
>> I built a CMake 2.4.2 for Cygwin from sources.  I used the "Unix 
>> linefeed" download, cmake-2.4.2.tar.gz.  I used an earlier Cygwin 
>> CMake package to build it.  Now I am using this Cygwin CCMake 2.4.2 
>> to generate my Chicken build.  When it comes time to link a .dll, it 
>> fails with:
>>
>> Linking C shared library libchicken.dll
>> /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../../i686-pc-cygwin/bin/ld: 
>> cannot find
>> -ldl
>> collect2: ld returned 1 exit status
>> make[2]: *** [libchicken.dll] Error 1
>> make[1]: *** [CMakeFiles/libchicken.dir/all] Error 2
>> make: *** [all] Error 2
>
> If libchicken is trying to link to -ldl this is probably because you 
> are telling to do so somewhere in your CMakeLists.txt code.

Hm!  You know, there is a conditional -ldl in there.  I haven't noticed 
that in a long time.  I wonder why it's giving this behavior on Cygwin 
when previously it didn't.  I will investigate.


Cheers,
Brandon Van Every