[CMake] Endless loop in cmake-2.6.2 on AIX with -DCMAKE_Fortran_Compiler=...

[Bill Hoffman]

> However, I was not able to find this in the Changelogs leading from
> 2.6.2 to 2.6.3, but I may have overlooked it. If this is the case, then
> "Sorry!".
> 
Just for the record it is in the ChangeLog:

Changes in CMake 2.6.3 RC 5
...
- Fix Fortran compiler specified with -D issue


-Bill