[Octave-bug-tracker] [bug #63437] Null pointer dereference in file-editor-tab.cc

[John W. Eaton]

Follow-up Comment #31, bug #63437 (project octave):

RE: Comment #29, http://hg.savannah.gnu.org/hgweb/octave/rev/e518e1f7e944
should fix it.

I don't know what the problem is with the other error shown in comment #30. 
Do you have the complete command used for linking the octave-svgconvert
executable?  The following is just a guess, but from digging around a bit,
octave-svgconvert.cc has this code:


      // Read from stdin
      if (! file.open (stdin, QIODevice::ReadOnly | QIODevice::Text))
        {


and the docs for QFile::open (https://doc.qt.io/qt-5/qfile.html#open-2) say:

Note for the Windows Platform

[...]

You need to enable support for console applications in order to use the stdin,
stdout and stderr streams at the console. To do this, add the following
declaration to your application's project file:


CONFIG += console


and it appears that for GCC, that CMake config option will set the linker flag
"-Wl,-subsystem,console".  For MSVC, it is "/SUBSYSTEM:CONSOLE"



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