AIRES library reference: sysspawn.

c
c     Routine directly callable from C/C++ (it could be necessary to
c     append an underscore, "_", to its name depending on the C/C++
c     compiler used).
c
c
      subroutine sysspawn(emodule, stdinput, stdoutput, rc)
c
c     Spawning a slave OS process to run a given module.
c
c     Written by: S. J. Sciutto, La Plata 1999.
c
c     Arguments:
c     =========
c
c     emodule......... (input, character*(*)) The module to execute.
c     stdinput........ (input, character*(*)) Name of a file to be
c                      connected to the standard input channel. If the
c                      name is the null or blank string, no assignment
c                      is done, and the modules inherits the standard
c                      input channel of the calling program.
c     stdoutput....... (input, character*(*)) Name of a file to be
c                      connected to the standard output channel. If the
c                      name is the null or blank string, no assignment
c                      is done, and the modules inherits the standard
c                      output channel of the calling program. The
c                      standard error channel is always connected to
c                      this output stream.
c     rc.............. (output, integer) The system return code after
c                      the spawned process ends.
c
c
c<--->

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