[CMake] Problem linking to shared library (inside project) after upgrade to cmake 2.6

[John Doe]

I am not sure what the compiler differences are between your projects,
but you may want to make sure you start with a completely clean cmake
build directory.  If the ABI changed between C++ compilers during your
OS upgrade, some of the symbols in your library may not be recognized
by the new compiler.

Regards,

Juan

On Sat, Jul 12, 2008 at 7:34 AM, Philip Lowman <philip at yhbt.com> wrote:
> On Sat, Jul 12, 2008 at 7:21 AM, Yogesh Marwaha <yogeshm.007 at gmail.com>
> wrote:
>>
>> Hello, can someone figure out what I'm doing wrong.
>> Here is the output I get when I attempt to compile: -
>> =================================
>> yogesh at linux-sm3q:~/gravity/New> make
>> Scanning dependencies of target GravityCore
>> [ 91%] Built target GravityCore
>> Scanning dependencies of target Gravity
>> Linking CXX executable Gravity
>> CMakeFiles/Gravity.dir/main.o: In function `main':
>> /home/yogesh/gravity/app/main.cpp:10: undefined reference to
>> `GApplication::GApplication()'
>> /home/yogesh/gravity/app/main.cpp:12: undefined reference to
>> `Gravity::self()'
>> /home/yogesh/gravity/app/main.cpp:12: undefined reference to
>> `Gravity::gUIInterfaceManager() const'
>> /home/yogesh/gravity/app/main.cpp:13: undefined reference to
>> `GApplication::~GApplication()'
>> collect2: ld returned 1 exit status
>> make[2]: *** [app/Gravity] Error 1
>> make[1]: *** [app/CMakeFiles/Gravity.dir/all] Error 2
>> make: *** [all] Error 2
>> =================================
>
> I would do a "make VERBOSE=1" and verify that CMake is linking your
> executable against what you think it should be linking against.
>
> If that was not the problem, I'd have a second look at your library
> implementations and double check that you're compiling and linking what you
> think you're compiling and linking.  You can use "nm" or some other tool to
> inspect the generated shared libraries and ensure that the proper symbols
> are defined (or not defined).
>
> --
> Philip Lowman
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