Bug 898602 – sys-fs/genext2fs-1.5.0-r1 has implicit function declarations in configure logs (MUSL-CLANG-SYSTEM)

• Status: CONFIRMED
• Product: Gentoo Linux

[Description Agostino Sarubbo 2023-03-01 11:44:12 UTC]

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

Issue: sys-fs/genext2fs-1.5.0-r1 has implicit function declarations in configure logs (MUSL-CLANG-SYSTEM).
Discovered on: amd64 (internal ref: tinderbox_musl)

NOTE:
(MUSL-CLANG-SYSTEM) in the summary means that bug was found on a machine that runs MUSL libc + clang16 but this bug MAY or MAY NOT BE related to musl/clang16.
See also: https://bugs.gentoo.org/898488#c4.

[Comment 1 Agostino Sarubbo 2023-03-01 11:44:14 UTC]

Created attachment 855408 [details]
build.log

build log and emerge --info

[Comment 2 Eli Schwartz 2024-11-08 04:29:40 UTC]

 * QA Notice: Found the following implicit function declarations in configure logs:
 *   /var/tmp/portage/sys-fs/genext2fs-1.5.0-r1/work/genext2fs-1.5.0/config.log:790 - strcmp
 *   /var/tmp/portage/sys-fs/genext2fs-1.5.0-r1/work/genext2fs-1.5.0/config.log:794 - exit
 *   /var/tmp/portage/sys-fs/genext2fs-1.5.0-r1/work/genext2fs-1.5.0/config.log:877 - strcmp
 *   /var/tmp/portage/sys-fs/genext2fs-1.5.0-r1/work/genext2fs-1.5.0/config.log:881 - exit
 * Check that no features were accidentally disabled.
 * See https://wiki.gentoo.org/wiki/Modern_C_porting.

[Comment 3 Eli Schwartz 2024-11-08 04:42:25 UTC]

It erroneously determines that snprintf / vsnprintf "don't work" and uses a private fallback function instead.