<p>On failure to run gdb, Scope displays only the generic error message, such as "The system cannot find the file specified", giving the impression that the executable to be debugged is missing or has some other problem. This patch changes the message to ": ", for example "gdb: The system cannot find the file specified" (unlikely under *nix, but gdb may be missing from the PATH under Windows).</p>
<p>Closes <a href="https://github.com/geany/geany-plugins/issues/337" class="issue-link js-issue-link" data-url="https://github.com/geany/geany-plugins/issues/337" data-id="126782368" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#337</a></p>

<hr>

<h4>You can view, comment on, or merge this pull request online at:</h4>
<p>  <a href='https://github.com/geany/geany-plugins/pull/561'>https://github.com/geany/geany-plugins/pull/561</a></p>

<h4>Commit Summary</h4>
<ul>
  <li>Improve the error message on attempting to run gdb</li>
</ul>

<h4>File Changes</h4>
<ul>
  <li>
    <strong>M</strong>
    <a href="https://github.com/geany/geany-plugins/pull/561/files#diff-0">scope/src/debug.c</a>
    (2)
  </li>
</ul>

<h4>Patch Links:</h4>
<ul>
  <li><a href='https://github.com/geany/geany-plugins/pull/561.patch'>https://github.com/geany/geany-plugins/pull/561.patch</a></li>
  <li><a href='https://github.com/geany/geany-plugins/pull/561.diff'>https://github.com/geany/geany-plugins/pull/561.diff</a></li>
</ul>

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