[CMake] help with cmake fortran envar

[Arjen Markus]

Hello luxInteg,

you are trying to set the Fortran compiler to gfortran then?
Why? Why not leave it to CMake to come up with whatever compiler
is suitable? That is part of the strength of tools like CMake.

Regards,

Arjen

On 2010-11-16 20:44, luxInteg wrote:
> Greetings,
> 
> I am learning cmake.
> 
> 
> I have a fortran only project with some  source files with f77 routines  to 
> compile,  My CMakeLists.txt in the projects base directory   has the following 
> lines
> 
> set(CMAKE_Fortran_COMPILER  gfortran)
> ENABLE_LANGUAGE(Fortran)
> 
> 
> ########  but running cmake ends like so:-
> 
> -- Checking whether /usr/bin/gfortran supports Fortran 90
> -- Checking whether /usr/bin/gfortran supports Fortran 90 -- yes
> CMake Error: Error required internal CMake variable not set, cmake may be not 
> be built correctly.
> Missing variable is:
> CMAKE_FORTRAN_COMPILER_ENV_VAR
> CMake Error: Error required internal CMake variable not set, cmake may be not 
> be built correctly.
> Missing variable is:
> CMAKE_FORTRAN_COMPILER
> CMake Error: Could not find cmake module file:
> $SOURCES/build/CMakeFiles/CMakeFORTRANCompiler.cmake
> CMake Error: Could not find cmake module file:CMakeFORTRANInformation.cmake
> CMake Error: CMAKE_FORTRAN_COMPILER not set, after EnableLanguage
> -- Configuring incomplete, errors occurred!
> 
> 
> 
> 
> #########
> 
> I have set 
> FC="gfortran"       and 
> FFLAGS="flags/I/use/to/compile/stuff" 
> as envars so I am perplexed what the required envar is.
> 
> advice would be appreciated
> 
> sincerely
> luxInteg
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