compile failed on GNU Fortran (GCC) 7.3.1 (Red Hat 7.3.1-5)

[rmcd-mscb]

Compile failed as follows:

rmcd@localhost build]$ make
[ 1%] Building Fortran object CMakeFiles/coretran.dir/core/m_variableKind.f90.o
[ 2%] Building Fortran object CMakeFiles/coretran.dir/core/m_errors.f90.o
[ 4%] Building Fortran object CMakeFiles/coretran.dir/core/m_unitTester.f90.o
[ 5%] Building Fortran object CMakeFiles/coretran.dir/core/m_allocate.f90.o
/home/rmcd/git/coretran/src/core/m_allocate.f90:44.4:

module subroutine allocate_r1D(this, n)
1

Error: Unclassifiable statement at (1)
/home/rmcd/git/coretran/src/core/m_allocate.f90:47.11:

  real(r32), allocatable, intent(inout) :: this(:) 
       1

Error: Parameter 'r32' at (1) has not been declared or is a variable, which does not reduce to a constant expression
/home/rmcd/git/coretran/src/core/m_allocate.f90:49.14:

  integer(i32), intent(in) :: n 
          1

Error: Parameter 'i32' at (1) has not been declared or is a variable, which does not reduce to a constant expression
/home/rmcd/git/coretran/src/core/m_allocate.f90:51.7:

end subroutine
   1

Error: Expecting END INTERFACE statement at (1)

[rmcd-mscb]

configured with:
cmake -DCMAKE_BUILD_TYPE=DEBUG --DCMAKE_INTALL_PREFIX=/usr/local -G"Unix Makefiles" ../src

[rmcd-mscb]

cmake was using an unexpected version of gfortran. I used the -DCMAKE_Fortran_COMPILER option with success.

[leonfoks]

Thanks for the issue, I've updated the docs to explain why this option is important.