Bug 900382 – sys-apps/sed-4.9 has implicit function declarations in configure logs (CLANG-17-SYSTEM)

• Status: CONFIRMED
• Product: Gentoo Linux

[Description Agostino Sarubbo 2023-03-08 14:05:08 UTC]

https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/

Issue: sys-apps/sed-4.9 has implicit function declarations in configure logs (CLANG-17-SYSTEM).
Discovered on: amd64 (internal ref: hardened_tinderbox)

NOTE:
(CLANG-17-SYSTEM) in the summary means that the bug was found on a machine that runs clang-17 but this bug MAY or MAY NOT BE related to the new compiler
See also: https://bugs.gentoo.org/898488#c4.

[Comment 1 Agostino Sarubbo 2023-03-08 14:05:11 UTC]

Created attachment 856818 [details]
build.log

build log and emerge --info

[Comment 2 connor-gh 2023-11-23 06:54:49 UTC]

The functions in question are alignof (_Alignof), MIN (macro), and free is attempting to be used without a prototype (!!!). The latter - the only actual issue - can be solved by adding #include <stdlib.h> to the file or by including the prototype, but that isn't our job.

[Comment 3 connor-gh 2023-11-23 06:55:16 UTC]

It's also relatively clear that if a system has malloc(), *very rarely* will it not have free().

[Comment 4 Eli Schwartz 2023-11-23 07:54:53 UTC]

All the instances of `free` are caused by autoconf builtin logic, and is fixed by adding `eautoreconf` to src_prepare. The other solution is waiting for upstream to release a new dist tarball.