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Bug 887659 - [guru] dev-util/binaryen-105 overwrites user's optimization (-O*)
Summary: [guru] dev-util/binaryen-105 overwrites user's optimization (-O*)
Status: RESOLVED FIXED
Alias: None
Product: GURU
Classification: Unclassified
Component: Package issues (show other bugs)
Hardware: All Linux
: Normal normal
Assignee: Alessandro Barbieri
URL:
Whiteboard:
Keywords:
Depends on:
Blocks: qa-guru
  Show dependency tree
 
Reported: 2022-12-21 10:12 UTC by Agostino Sarubbo
Modified: 2024-03-25 20:54 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---

Attachments
build.log (build.log,267.66 KB, text/plain)
2022-12-21 10:12 UTC, Agostino Sarubbo 		Details
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Description Agostino Sarubbo gentoo-dev 2022-12-21 10:12:17 UTC 
https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/

Issue: dev-util/binaryen-105 overwrites user's optimization (-O*).
Discovered on: amd64 (internal ref: guru_tinderbox)

NOTE:
(CLANG-STRICTER-SYSTEM) in the summary means that the bug was found on a machine that runs clang with stricter mode

This machine uses clang with CFLAGS/CXXFLAGS=-Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types

See also:
https://archives.gentoo.org/gentoo-dev/message/dd9f2d3082b8b6f8dfbccb0639e6e240
https://wiki.gentoo.org/wiki/Modern_C_porting
man gcc says:
"If you use multiple -O options, with or without level numbers, the last such option is the one that is effective".

So, since the build system adds -O* after -O* provided by my CFLAGS/CXXFLAGS means that it is overwritten and unless there are known issues with -O* configured by the user, the build system should not overwrite -O*.
Comment 1 Agostino Sarubbo gentoo-dev 2022-12-21 10:12:19 UTC 
Created attachment 844363 [details]
build.log

build log and emerge --info