[RegCNET] Strange fortran runtime error in 4.7.0

[Peter Huszar]

Dear regCM users,

I have encountered a strange error when using RegCM version 4.7.0. Starting
any of the components, terrain/sst/icbc/rtegcmMPI, the following error
occurs.
It seems that on line in mod_dynparam.F90
      write (stderr,*) 'Error reading dimparam namelist in ',trim(filename)
The unit number corresponding to stderr is already opened as READ.
When printing out the value of this variable, i got 0 (zero).
For some reason, the system reports this unit as opened for READ (and thus
cannot write to it). Is this connected to parameter error_unit
in Share/mod_stdio.F90 which is likely a runtime system parameter?
This was compiled with GNU Fortran
gcc version 4.8.2 20140120 (Red Hat 4.8.2-15) (GCC)

When compiling and running the code with newer, namely gcc version 5.4.0
20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.10), I do not got this error.
However, many of our machines use this older GNU fortran so it would be
good to solve this issue.

Thanks for any suggestions
Peter

~]$  ~/src/RegCM-4.7.0/bin/terrainCLM45 ~/work/RegCM/namelists/regcm_test.in

  This is Terrain part of RegCM package version 4
   SVN Revision: tag-4.7.0 compiled at: data : Oct 19 2018  time: 14:37:03

 : this run start at  : 2018-10-23 10:40:51+0200
 : it is submitted by : svabik
 : it is running on   : kamet5k.priv.troja.mff.cuni.cz
 : in directory       : /home/svabik

At line 462 of file mod_dynparam.F90
Fortran runtime error: Cannot write to file opened for READ



-- 

Mgr. Peter Huszar, Ph.D.
Academic Scientist
Department of Atmospheric Physics, Faculty of Mathematics and Physics,
Charles University
Prague, Czech Republic
peter.huszar at mff.cuni.cz
+420 221 912 530
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