a quick update from my side. After endless attempts, I think I have been
able to narrow down the cause of my constant startup crashes. They
definitely have something to do with the cairoification changes between
rev #19024 and #19033. Unfortunately, the revisions in between don't
compile as they are, which makes bisecting the history harder, but after
making slight adaptions to recover compiling and a lot of experiments,
I'm pretty sure that the following call in line #1685 of
display/sp-canvas.cpp is the one to blame:
cairo_surface_t *cst = cairo_get_target(buf.ct);
When I comment it out (as well as the other two lines referring to the
variable cst), Inkscape starts up as usual and I can work normally,
except that rendering is of course slightly broken.
Since I'm not familiar with cairo, does anyone have a clue why this call
could be causing a crash? I upgraded my cairo version from 1.5.12 to
1.6.4, just in case this was a bug on cairo's side, but it didn't help.:(
Do you think cairo is to blame and should I report a bug there? Or is
cairo_get_target() simply passed invalid data so that this is fixable on
Inkscape's side? Any help is greatly appreciated.
I still don't understand why the crashes only happen in some of my SVN
checkouts, but perhaps my first guess about the modified CFLAGS was
wrong and they don't have anything to do with the problem at all. Then
again why don't more people see this?