[CMake] compile flag on AIX-5.3

[Joachim Geiger]

Hello,
I have the following problem with a fortran compiler flag I want to be 
accepted. Compiler is the IBM compiler version 8. The compiler flag I 
want to be accepted is -qrealsize=8 .
Using CMAKE_VERBOSE_MAKEFILE=ON I see that the compiler flag appears as
-fdefault-real-8
I tried -DCMAKE_Fortran_COMPILE_FLAGS=-qrealsize=8
and also with quotes: ' and ", but the effect is always that it is 
translated into the above mentioned one.
An additional note: the AIX-compiler is named f95 and is the same as xlf.
Best regards,
Joachim
-- 
Joachim Geiger --------------------------------@\\
Max-Planck-Institute for Plasma Physics,        @\\
   Euratom Association                            \\\
Department Stellaratortheorie (ST)                \\\__
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