CODEWITHSUNDEEP
compiler-errorsfortrangfortran
kensaii
kensaii

Reputation: 314

Illegal preprocessor directive and Symbol referenced at (1) not found in module

I'm trying to compile a Quantum ESPRESSO code with some other packages. After playing around with the Makefile and compiling flags a bit, I "obtained" an error as below. Is there any way to get around this? Am I missing any flag to avoid the error? Or does it come from the code itself?

$ mpif90 -fdollar-ok -ffree-line-length-none -O3 -fopenmp -fPIC -I ../../../qe/6.0-mpi/Modules -I ../src -I ../src ../../../qe/6.0-mpi/PW/src/libpw.a ../../../qe/6.0-mpi/Modules/libqemod.a ../../../qe/6.0-mpi/FFTXlib/libqefft.a ../../../qe/6.0-mpi/LAXlib/libqela.a -Wall -c qevars.f90 
Warning: qevars.f90:30: Illegal preprocessor directive
Warning: qevars.f90:32: Illegal preprocessor directive
Warning: qevars.f90:34: Illegal preprocessor directive
Warning: qevars.f90:56: Illegal preprocessor directive
Warning: qevars.f90:58: Illegal preprocessor directive
Warning: qevars.f90:60: Illegal preprocessor directive
Warning: qevars.f90:68: Illegal preprocessor directive
Warning: qevars.f90:70: Illegal preprocessor directive
Warning: qevars.f90:72: Illegal preprocessor directive
Warning: qevars.f90:74: Illegal preprocessor directive
Warning: qevars.f90:75: Illegal preprocessor directive
Warning: qevars.f90:77: Illegal preprocessor directive
qevars.f90:33:43:

     use io_files,   ONLY : nd_nmbr, prefix, outdir, tmp_dir, nwordwfc, iunwfc
                                           1
Error: Symbol ‘outdir’ referenced at (1) not found in module ‘io_files’
qevars.f90:73:43:

     use wvfct,      ONLY : npw, npwx, nbnd, igk, g2kin, wg, et, ecutwfc
                                           1
Error: Symbol ‘igk’ referenced at (1) not found in module ‘wvfct’
qevars.f90:73:63:

     use wvfct,      ONLY : npw, npwx, nbnd, igk, g2kin, wg, et, ecutwfc
                                                               1
Error: Symbol ‘ecutwfc’ referenced at (1) not found in module ‘wvfct’
qevars.f90:71:43:

     use wvfct,      ONLY : npw, npwx, nbnd, igk, g2kin, wg, et
                                           1
Error: Symbol ‘igk’ referenced at (1) not found in module ‘wvfct’

Upvotes: 1

Views: 1269

Answers (1)

Vladimir F Героям слава
Vladimir F Героям слава

Reputation: 59999

Error messages and warnings like

Warning: qevars.f90:30: Illegal preprocessor directive

are normally cased by Fortran code containing preprocessor directives but not preprocessed by the preprocessor. In gfortran use -cpp to enable the preprocessor or use file extensions with capital F (.F, .F90).

The lack of preprocessing can cause many following errors being reported.

Upvotes: 2

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