gEDA-bug: [Bug 806686] Re: misleading error message by gsch2pcb

[Eivind Kvedalen <806686@xxxxxxxxxxxxxxxxxx>]

I can confirm this. I have also attached a patch that tries to improve
the error handling in gsch2pcb. To fix it completely, a change is also
required in gnetlist, as gnetlist does not necessarily signal an error
with a non-zero exit-code.


** Patch added: "Improved error handling in gsch2pcb"
   https://bugs.launchpad.net/geda/+bug/806686/+attachment/2195865/+files/0001-Improved-error-handling-in-gsch2pcb.patch

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https://bugs.launchpad.net/bugs/806686

Title:
  misleading error message by gsch2pcb

Status in GPL Electronic Design Automation tools:
  New

Bug description:
   gsch2pcb will report an error related to M4 options if gnetlist
  cannot find libgeda. This is of course not very helpful.

  To reproduce:

  1) make sure, libgeda is not found. E.g. move the link libgeda.so.40
  out of the way.

  2) call gsch2pcb with some project file
  The script dies with this error message:
  /--------------------
  gsch2pcb: gnetlist command failed, `stromverteiler.new.pcb' not updated
      At least gnetlist 20030901 is required for m4-xxx options.
  \--------------------

  gnetlist alone produces a more useful message:
  /--------------------
  gnetlist: error while loading shared libraries: libgeda.so.40: cannot open shared object file: No such file or directory
  \--------------------

  Suggestion: Forward any gnetlist errors to the user.
  Do not report m4 when just guessing from circumstances.

  ---<)kaimartin(>---

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