control: reopen -1 ok, after digging into the issue I did: create a jessie-backport chroot for building create a sid chroot for testing fpcmkcfg- binaries (it crashes just by running the tool with no parameters).
Interesting findings: fpcmkcfg-2.6.4 is *not* failing in neither Jessie, nor Sid. So, this lead me to the conclusion that the problem was inside fpcmkcfg.pp file (a regression) for this, I copied the file from 2.6.4 over the one from 3.0.0, and I did a rebuild. the resulting fpcmkcfg-3.0.0 runs correctly on Stretch, so with the new glib. Something in the code broke glib, even if I don't know what. I'm attaching a run of the 2.6.4 from sid (file: log-old) and a run of 3.0.0 from sid (file: log) and the patch of the "revert". the files are on partch.debian.org. (there isn't a complete build because of the "opengl missing file" complains) G.
revert
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log-old
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log
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