Thanks for letting me know.
Hi, no problem. I just assumed you were busy with the holiday period. Try the new given patch, that should correct the errors in the build log. Unfortunately I don't have access to a build system to build gmtp currently, so patches may not be 100%. Happy new year to you as well.
Try this new patch. I think 'treeviewFolders' needs a cast on line 716 for it to be happy.
Hi, Thanks for reporting, however gmtp isn't being worked on currently. (I've switched from running OpenIndiana, so have no need for this tool personally, so any maintenance may no longer happen). I however have created the following patch for the 1.3.11 release that should allow it to compile when C23 is being enforced. Let me know if it fixes the compile issue, or if additional patches are needed.
Correct typo in documentation
Remove commercial license and support options from documentation
Continue GTK4 (4.0.1) Support
Update README