nc_cntr: longjmp causes uninitialized stack frame

[grozin]

x86_64-pc-linux-gnu-gcc -O2 -march=native -pipe -fPIC -I/usr/lib/python3.8/site-packages/numpy/core/include -Iveusz/helpers/src/nc_cntr -I/usr/include/python3.8 -c veusz/helpers/src/nc_cntr/_nc_cntr.c -o /var/tmp/portage/sci-visualization/veusz-3.4/work/veusz-3.4-python3_8/temp.linux-x86_64-3.8/veusz/helpers/src/nc_cntr/_nc_cntr.o
*** longjmp causes uninitialized stack frame ***: terminated

gcc-11.2.0

[grozin]

Forgot to say: I'm trying to compile veusz-3.4 on Gentoo linux

[jeremysanders]

Thanks for the report. This seems to be either a bug in the compiler or something in your Gentoo setup. It could be worth reporting on the Gentoo bug tracker for gcc to see if it's reproducible for others (I don't have a gcc-11.2.0 system).

[thesamesam]

FWIW, this looks to be a sip bug in the end, or possibly some parallel build issue in veusz's setup, but it looks fixed with newer SIP: https://bugs.gentoo.org/823005#c10.

I made some local patches (nothing worth sharing, mentioned on bug, but they're not real fixes) just to test if it works with newer SIP and it did, as they've rewritten the parser.