net-im/qtox-1.16.3 does not build without media-libs/libexif. Without libexif, qtox dies during configure phase with the error message -- Checking for one of the modules 'libexif' CMake Error at cmake/Dependencies.cmake:73 (message): LIBEXIF package, library or framework not found Call Stack (most recent call first): cmake/Dependencies.cmake:107 (search_dependency) CMakeLists.txt:89 (include) The error message suggests that perhaps also alternatives to media-libs/libexif might be possible, but I did not investigate further, because media-libs/libexif (0.6.21-r1) is not a serious dependency and installing it made the build work without problems.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=df40bb5aae04f71bf65c2846ce23bc741a88188d commit df40bb5aae04f71bf65c2846ce23bc741a88188d Author: Susan Wilson <susanw@airmail.cc> AuthorDate: 2018-09-15 03:35:06 +0000 Commit: Michał Górny <mgorny@gentoo.org> CommitDate: 2018-09-18 06:57:11 +0000 net-im/qtox: add missing libexif dep Closes: https://bugs.gentoo.org/663506 Closes: https://github.com/gentoo/gentoo/pull/9869 net-im/qtox/qtox-1.16.3.ebuild | 1 + 1 file changed, 1 insertion(+)