parallel-4.0.0 on Octave 4.2.2

[Evangelos Rozos]

I am trying to install package in the following system

GNU Octave Version: 4.2.2
GNU Octave License: GNU General Public License
Operating System: Linux 4.15.0-101-generic #102-Ubuntu SMP Mon May 11 
10:07:26 UTC 2020 x86_64

using pkg install -verbose -forge parallel.

The installation fails with

CXX="g++" CXXFLAGS="-g -O2 
-fdebug-prefix-map=/build/octave-DtqyIg/octave-4.2.2=. 
-fstack-protector-strong -Wformat -Werror=format-security 
-Wno-deprecated" /usr/bin/mkoctfile --verbose -c p-control.cc
g++ -c -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC 
-I/usr/include/octave-4.2.2/octave/.. -I/usr/include/octave-4.2.2/octave 
-I/usr/include/hdf5/serial -I/usr/include/mpi  -pthread -fopenmp -g -O2 
-fdebug-prefix-map=/build/octave-DtqyIg/octave-4.2.2=. 
-fstack-protector-strong -Wformat -Werror=format-security 
-Wno-deprecated    p-control.cc -o p-control.o
p-control.cc: In member function ‘octave_value 
octave_parallel::control::get_next_result(octave_value&)’:
p-control.cc:537:13: error: ‘class octave_value’ has no member named 
‘isinteger’
     if (res.isinteger ()
             ^~~~~~~~~
Makefile:199: recipe for target 'p-control.o' failed
make: *** [p-control.o] Error 1
make: Leaving directory '/tmp/oct-fC0PHc/parallel-4.0.0/src'

What can be done

Thanks