Bug 426222

Summary:	sys-apps/portage: autounmask could handle USE conflicts better
Product:	Portage Development	Reporter:	Zac Medico <zmedico>
Component:	Core - Interface (emerge)	Assignee:	Portage team <dev-portage>
Status:	CONFIRMED ---
Severity:	normal	CC:	dlan, esigra, pacho
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	All
See Also:	https://bugs.gentoo.org/show_bug.cgi?id=368429 https://bugs.gentoo.org/show_bug.cgi?id=425016 https://bugs.gentoo.org/show_bug.cgi?id=667132 https://bugs.gentoo.org/show_bug.cgi?id=669154 https://bugs.gentoo.org/show_bug.cgi?id=615824 https://bugs.gentoo.org/show_bug.cgi?id=780390
Whiteboard:
Package list:		Runtime testing required:	---
Bug Depends on:	425558
Bug Blocks:	376695
Attachments:	test case for USE=icu conflict involving libxml2, qt-webkit, and chromium

Description Zac Medico gentoo-dev

2012-07-11 22:33:38 UTC

Created attachment 317962 [details]
test case for USE=icu conflict involving libxml2, qt-webkit, and chromium

The attached test case results in the following output, even though the only workable solution is to enable USE=icu for all involved packages:

emerge: there are no ebuilds built with USE flags to satisfy "dev-libs/libxml2:2[!icu?]".
!!! One of the following packages is required to complete your request:
- dev-libs/libxml2-2.8.0::test_repo (Change USE: -icu)
- x11-libs/qt-webkit-4.8.2::test_repo (Change USE: +icu)
(dependency required by "x11-libs/qt-webkit-4.8.2" [ebuild])
(dependency required by "x11-libs/qt-webkit" [argument])

If we disable the "autounmask_breakage" code from bug #368429, then we get the following output which is confusing because the test case already has USE=icu enabled for libxml2:

emerge: there are no ebuilds built with USE flags to satisfy "dev-libs/libxml2[icu]".
!!! One of the following packages is required to complete your request:
- dev-libs/libxml2-2.8.0::test_repo (Change USE: +icu)
(dependency required by "www-client/chromium-19.0.1084.52" [ebuild])
(dependency required by "www-client/chromium" [argument])