Debian has two packages for liblastfm, one built with Qt 4 [1] and the other with Qt 5 [2]. They both install the same headers, but in different directories. The Qt 4 package installs them in /usr/include/lastfm/, while the Qt 5 package installs them in /usr/include/lastfm5/. Due to this, some Qt 5 applications, such as an as-yet unreleased version of Clementine, expect the liblastfm headers to be in a directory named lastfm5 [3]. Gentoo currently only installs the headers in /usr/include/lastfm/, making it impossible to build such applications. To solve this problem, I suggest installing a symlink from /usr/include/lastfm5 to /usr/include/lastfm, when liblastfm is built with USE=qt5. [1] https://packages.debian.org/sid/liblastfm-dev [2] https://packages.debian.org/sid/liblastfm5-dev [3] https://github.com/clementine-player/Clementine/blob/qt5/src/internet/lastfm/lastfmsettingspage.cpp#L25
That's a very odd thing for Debian to do, and I don't think clementine upstream should follow this. Not least since Qt4 is going away. Do you know of any other applications expecting headers in that place?
> Do you know of any other applications expecting headers in that place? I googled "#include <lastfm5/" and found Tomahawk: https://github.com/tomahawk-player/tomahawk/blob/master/src/tomahawk/Scrobbler.h#L28 Fedora apparently also installs in /usr/include/lastfm5: https://fedora.pkgs.org/27/fedora-x86_64/liblastfm-qt5-devel-1.0.9-9.fc27.x86_64.rpm.html
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=79de2de023843ad9849d7c070065c2127e18da8a commit 79de2de023843ad9849d7c070065c2127e18da8a Author: Andreas Sturmlechner <asturm@gentoo.org> AuthorDate: 2018-02-17 17:16:31 +0000 Commit: Andreas Sturmlechner <asturm@gentoo.org> CommitDate: 2018-02-17 19:16:06 +0000 media-sound/clementine: Fix lastfm paths Unfortunately clementine relies on downstream paths. Closes: https://bugs.gentoo.org/645638 Package-Manager: Portage-2.3.24, Repoman-2.3.6 media-sound/clementine/clementine-1.3.1_p20180203.ebuild | 8 ++++++++ media-sound/clementine/clementine-9999.ebuild | 8 ++++++++ 2 files changed, 16 insertions(+)
