[CMake] Problem with CMake 2.8.12.2 on Mac OS X

[Robert Bielik]

c++ --version:
Apple LLVM version 5.1

Problem description:

Linking always fails in Release build:

Warning: Option -s is obsolete and being ignored

with the following error:

Internal error: atom not found in symbolIndex(<symbol>) for architecture ...

If I remove the -s option from linking (tried it with Makefile), the linking succeeds ! (even though ld explicitly says -s option
is being ignored, it obviously is NOT ignored)

BUT, on Mac OS X, CMake ALWAYS adds the -s option for linking, despite me removing it via CMake-GUI/ccmake or by editing
the CMakeCache.txt file. 

How should I make sure that CMake does NOT add the -s option for Release ??

Regards
/Robert