GraphicsMagick @1.3.32: gm identify crashes

[nir-krakauer]

With the new GraphicsMagick version 1.3.32, installing the default Octave (as octave-5.1.0_0+accelerate+app+docs+gfortran+graphicsmagick+qt5+sound+sundials.darwin_15.x86_64.tbz2 ) results in a crash when Octave is run and, for example, the ​imformats command is invoked:

octave:1> imformats
  fatal: caught signal Abort trap: 6 -- stopping myself...
  Abort trap: 6

This appears to be due to the Octave binary being built with an old GraphicsMagick library version:

otool -L /opt/local/lib/octave/5.1.0/liboctinterp.7.dylib | grep Magic
	/opt/local/lib/libGraphicsMagick++.12.dylib (compatibility version 17.0.0, current version 17.0.0)
	/opt/local/lib/libGraphicsMagick.3.dylib (compatibility version 23.0.0, current version 23.0.0)

otool -L /opt/local/bin/gm | grep Magick
	/opt/local/lib/libGraphicsMagick.3.dylib (compatibility version 24.0.0, current version 24.0.0)

The problem is fixed after downgrading GraphicsMagick to the previous version (1.3.31) using a local Portfile and then reinstalling Octave.

[ryandesign (Ryan Carsten Schmidt)]

libGraphicsMagick's major version number (3) hasn't changed, which should mean that the new version is compatible with the old one.

Can you attach the crash log file (from inside ~/Library/Logs/DiagnosticReports/)?

Does the crash go away if you rebuild octave from source, now that the new libGraphicsMagick is installed? (I would not expect it to.)

[nir-krakauer]

Crash log

[nir-krakauer]

I wasn't successful in building octave from source because the build dependency clang-5.0 had a build error.

[ryandesign (Ryan Carsten Schmidt)]

Thanks. I think this is GraphicsMagick bug ​https://sourceforge.net/p/graphicsmagick/bugs/609/. I can reproduce the problem just using gm identify, not using octave. Let me test a fix for that.

[ryandesign (Ryan Carsten Schmidt)]

In 2fe07c791cf3df873ab41f6cd57a40cbe3f5e7a9/macports-ports (master):

GraphicsMagick: Fix crash with png files

Closes: #58693