[Q-e-developers] ppc64 and xlc vs. gfortran

[Michael Banck]

Hi,

I noticed that QE fails to build on Debian ppc64:

|mpif90 -O3 -g -x f95-cpp-input -D__XLF -D__GFORTRAN -D__STD_F95
|-D__FFTW3 -D__MPI -D__PARA -D__SCALAPACK -D__ELPA  -I../include
|-I/usr/include/elpa/modules  -I../iotk/src -I../ELPA/src -I../FFTXlib
|-I../LAXlib -I. -c parser.f90
|f951: Warning: Nonexistent include directory '../ELPA/src'
|[-Wmissing-include-dirs]
|parser.f90:65:21:
|
|     CHARACTER(LEN=1), AUTOMATIC             :: sep1, sep2
|                     1
|Error: Invalid character in name at (1)

Note thet -D__XLF which makes it use a different codepath in parser.f90.
This seems to be due to this in configure:

|case $arch in
|[...]
|ppc64 )
|        try_mpif90="mpxlf90_r mpf90_r mpif90"
|        try_f90="xlf90_r $try_f90"
|        try_dflags="-D__XLF"
|        ;;

So QE assumes XLC to be used on ppc64, but gfortran appears to be a
valid choice to me as well.


Michael