../../../../src/client/gui-sdl2/helpdlg.c:539:23: warning: Access to field 'next' results in a dereference of a null pointer (loaded from field 'pRequirementButton') [core.NullDereference]
pRequirementLabel = pStore->pRequirementButton->next;
I think this is real. pStore->pRequirementButton, set from pRequirementLabel2, might be NULL when the improvement both HAS requirements, but all of those are negated ones.
Clang analyzer (S3_0):
../../../../src/client/gui-sdl2/helpdlg.c:539:23: warning: Access to field 'next' results in a dereference of a null pointer (loaded from field 'pRequirementButton') [core.NullDereference]
pRequirementLabel = pStore->pRequirementButton->next;
I think this is real. pStore->pRequirementButton, set from pRequirementLabel2, might be NULL when the improvement both HAS requirements, but all of those are negated ones.