[CMake] weirdness with CMAKE_CACHEFILE_DIR

[Eric Torstenson]

Hi All,

I am performing out of source builds, and trying to use the CWD to place 
my binaries. I am using CMAKE_CACHEFILE_DIR to get that directory, which 
seems to be correct, but it seems to behave rather strangely.

On the first time I run CMake, it reads properly when I display it using 
MESSAGE, however, when I do something like the lines below, there seems 
to be some slashes getting lost. The result is that the directory slash 
between bin and ${Platform} is getting lost.

What is strangest, is the fact that if I then run cmake  again, it gets 
it right the second time (assuming I didn't delete the cmake cache file 
nor any other biproducts)

SET (BuildDIR ${CMAKE_CACHEFILE_DIR}/../bin/${PLATFORM})
SET (EXECUTABLE_OUTPUT_PATH ${BuildDIR})

....

Linking CXX executable binLinux-x86_64/genomeSIMLA
/usr/bin/ld: cannot open output file binLinux-x86_64/genomeSIMLA: No 
such file or directory
collect2: ld returned 1 exit status
make[2]: *** [binLinux-x86_64/genomeSIMLA] Error 1

Is it that I'm using the ../bin to place the products? I don't want them 
in my build directory.

Thanks for any suggestions,

eric