Bug 523720 – dev-libs/marisa uses illegal USE flags sse4.1 sse4.2

• Product: Gentoo Linux
• Status: RESOLVED DUPLICATE

[Description zvasylvv 2014-09-25 18:59:31 UTC]

We have a fight tonight.

In the left corner: PMS

3.1.4 USE Flag Names

A USE flag name may contain any of the characters [A-Za-z0-9+_@-]. It must begin with an alphanumeric character. Underscores should be considered reserved for USE_EXPAND, as described in section 11.1.1.


In the right corner: use.local.desc

vv@vv-Latitude-E5520 /dev/shm/portage/profiles $ grep marisa use.local.desc | grep \\.
dev-libs/marisa:sse4.1 - Enable sse4.1 instruction support
dev-libs/marisa:sse4.2 - Enable sse4.2 instruction support
vv@vv-Latitude-E5520 /dev/shm/portage/profiles $ 

One of them will loose.

Reproducible: Always

[Comment 1 Martin Väth 2014-09-26 06:15:35 UTC]

Since there are USE-flags sse4_1 and sse4_2 in several packages, this is probably a typo in marisa.

[Comment 2 zvasylvv 2014-09-26 10:14:16 UTC]

What about next PMS statement?

> Underscores should be considered reserved for USE_EXPAND, as described in section 11.1.1.

[Comment 3 Martin Väth 2014-09-26 16:50:10 UTC]

It seems to me that this is a recommendation, but not a "law":
Quite a lot of useflags contain underscores.
Moreover, even man USE_EXPAND useflags contain more than one underscore.

Summarizing: There is no chance to "determine" USE_EXPAND-flags without knowing the value of USE_EXPAND.

I would appreciate if this would change, but currently there are too many useflags in the tree which violate this rule.

[Comment 4 Michał Górny 2015-01-28 22:03:10 UTC]

@CJK, any reply there? This is a major issue with a trivial fix.

[Comment 5 Ulrich Müller 2015-01-28 22:45:39 UTC]

*** This bug has been marked as a duplicate of bug 538104 ***