Since "build_with_use" has been removed in EAPI 2 and its functionality to query if a package was build with a certain USE-Flag has been merged with "has_version" that should be documented in the ebuild guide. I would have expected it at least here: http://devmanual.gentoo.org/function-reference/query-functions/index.html In the end I found the information in this mailing list post: http://www.mail-archive.com/gentoo-dev@lists.gentoo.org/msg37373.html Reproducible: Always Steps to Reproduce:
Reassigning to devmanual
commit 9101c681314f17ff94abc075afc1d80c42742383 Author: Wim Muskee <wimmuskee@gmail.com> AuthorDate: Mon Nov 14 20:44:29 2016 +0100 Commit: Göktürk Yüksek <gokturk@gentoo.org> CommitDate: Wed Nov 30 00:56:06 2016 -0500 function-reference/query-functions: add has_version flag explanation, bug #307065
This is live now