Bug 251270

Summary:	dirname in libgen.h relies on C11 features
Product:	Base System	Reporter:	Simon Ser <contact>
Component:	standards	Assignee:	freebsd-standards (Nobody) <standards>
Status:	Open ---
Severity:	Affects Only Me	CC:	markj
Priority:	---
Version:	12.2-STABLE
Hardware:	Any
OS:	Any

Description Simon Ser 2020-11-20 13:15:21 UTC

Building a program which calls `dirname` in C99 mode results in the following error:

https://builds.sr.ht/~emersion/job/347469#bottom

Instead, the compat selection which uses C11's _Generic should be disabled when building with C99 mode.

Comment 1 Mark Johnston freebsd_committer

2020-11-24 22:58:04 UTC

Perhaps cdefs.h should be using __has_feature instead of __has_extension when defining __generic().