cdefs.h: Remove support for pre gcc 4.0
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Authored by imp on Jun 20 2024, 6:16 AM.

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Reviewers

minsoochoo0122_proton.me
kib
jrtc27
dim
brooks

Commits

rG67d1a1cd9e77: cdefs.h: Remove support for pre gcc 4.0

Summary

All supported compilers support the gcc 3 attribute extensions. Remove
the #else clauses for this. Also, latter-day pcc compilers also define
GNUC, so there's not need to also test for PCC.

Diff Detail

Repository

rG FreeBSD src repository

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Build Status

Buildable 58258
Build 55146: arc lint + arc unit

Event Timeline

imp requested review of this revision.Jun 20 2024, 6:16 AM

imp created this revision.

Harbormaster completed remote builds in B58258: Diff 140019.Jun 20 2024, 6:16 AM

imp added a parent revision: D45653: cdefs.h: Assume the compiler supports at least GNU C 3.0 extensions.Jun 20 2024, 6:16 AM

imp added a child revision: D45655: math.h: Remove support for old gcc versions.

imp added a reviewer: dim.Jun 20 2024, 2:29 PM

brooks accepted this revision.Jun 20 2024, 4:50 PM

brooks added a subscriber: brooks.

brooks added inline comments.

sys/sys/cdefs.h
154–156	Maybe rewrite entirely with something like: (Free)BSD-specific macros for once-optional declarations of dead (non-returning) and pure (no side effects) functions, unused variables, or unusual structure layout or alignment. Today these attributes are supported by all current compilers, even pcc.