[Nek5000-users] Issue Compiling Prenek and Postnek

[nek5000-users at lists.mcs.anl.gov]

Hello,

I'm a beginner in both linux and nek5000. Trying to set up Nek5000 I've
learned so much about ubuntu but not enough... I've tried several times in
two different computers (ubuntu 16.04) to compile postnek and prenek as the
documentation recommends but the same error persists for both postnek and
prenek.

This is what the command window displays after ./maketools all

----------------------
Make postnek...
----------------------
make[1]: Entering directory '/home/edmund/Nek5000/tools/postnek'
gfortran -c    postnek.f
postnek.f:2052:28:

                  call copyi(ig,buf(1 ),1)          !1-2
                            1
Warning: Rank mismatch in argument ‘a’ at (1) (rank-1 and scalar)
postnek.f:2053:31:

                  call copy8b(x,buf( 3),4,iel,nelm) !3-10
                               1
...

Warning: Deleted feature: Assigned GOTO statement at (1)
../../core/3rd_party/blas.f:17283:72: Warning: Deleted feature: ASSIGN
statement at (1)
../../core/3rd_party/blas.f:17295:72: Warning: Deleted feature: ASSIGN
statement at (1)
../../core/3rd_party/blas.f:17308:72: Warning: Deleted feature: ASSIGN
statement at (1)
../../core/3rd_party/blas.f:17319:72: Warning: Deleted feature: ASSIGN
statement at (1)
gcc  -c -O2  -DUNDERSCORE  xdriver.c
xdriver.c:6:22: fatal error: X11/Xlib.h: No such file or directory
compilation terminated.
makefile:84: recipe for target 'xdriver.o' failed
make[1]: *** [xdriver.o] Error 1
make[1]: Leaving directory '/home/edmund/Nek5000/tools/postnek'
makefile:4: recipe for target 'all' failed
make: *** [all] Error 1
edmund at edmund-VirtualBox:~/Nek5000/tools$

----------------------------------------------------------------------------------------------------------

Could you help me please? What I am doing wrong?

Thank you for your time and patience.

Edmund
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