Bug#1097941: stopmotion: ftbfs with GCC-15

[Barak A. Pearlmutter]

My take is that the issue is a bit deeper. Basically if you're
slipping in a replacement library it's hard to do it for some calls
and not others, and unfortunately the replacement library that tests
for what happens when allocation fails is getting its tentacles into
the testing jig itself where it does not belong.