|| ( =virtual/jdk-1.7*:= =virtual/jdk-1.8*:= ) Use of := inside || () is forbidden and broken. Please clean up those deps or remove the old versions.
commit af2fbac39c32842ccc588efb3e7cb3bebf09e15f Author: Michał Górny <mgorny@gentoo.org> AuthorDate: Tue Jun 21 21:36:19 2016 Commit: Michał Górny <mgorny@gentoo.org> CommitDate: Tue Jun 21 21:37:06 2016 sci-mathematics/rstudio: Backport JRE/JDK := dep fix, #586322 I've just copied the deps from newer ebuild since they seem to be equivalent.