Almost everything is in the title. For the details, I checked in ECM CMakeLists, and only the tests need qtcore (and some others BTW). The problem is that if you need ECM on a Qt free system, it is a bit annoying to build it for, finally, nothing. I don't have any example of non-Qt applications using it (except maybe oxygen-icons, I did not check), but ECM provides usefull Wayland find modules, which may be used on Qt-free systems. I know it should rarely happen today, but we don't know tomorrow ;) I must admit that I did not take time to test it, but archlinux extra-cmake-modules-git (AUR) does not depend on Qt, so in theory it should be good to just drop the dependency. Finally, I'm sorry if my English is not perfect, I'm not a native speaker (and someone should learn to French schools how to learn languages, eheh). Reproducible: Always Steps to Reproduce: Just emerge kde-frameworks without dev-qt/qtcore installed. Actual Results: Brings dev-qt/qtcore in dependencies. Expected Results: No dev-qt/* at all.
We found in the past that ECM installs some modules that that call qmake (such as ECMQueryQmake.cmake).
Yes it would be nice. But if Arch haven't created a split-out package with the qmake parts (and I doubt it) they might be just wrong. ;)
From bug 556238: "extra-cmake-modules requires qmake from qtcore". I did not see that, but if we think this way, we should add a dependency on Wayland for FindWayland.cmake, and for all other modules depending on other packages. From my point of view, the right answer would be "plasma-workspace-wallpapers requires qmake from qtcore". The bug would still be fixed, leaving extra-cmake-modules without big dependencies. Andreas, I would say neither of these. After checking, Archlinux does not patch ECM and only does cmake/make/make install (see https://aur.archlinux.org/cgit/aur.git/tree/PKGBUILD?h=extra-cmake-modules-git). As a general rule, We may see it like this: if a software uses an ECM depending on a package, it must itself depend on this package. This would allow a package to use ECM without bringing useless dependencies. AFAIK, Gentoo is the only distro shipping an ECM package bringing such a big dependency. If it is a problem for you, we could install only parts of ECM depending on use flags, but it would be too much work to maintain for what it is, at least from my point of view.
app-i18n/fcitx can be successfully installed with kde-frameworks/extra-cmake-modules installed and Qt 5 not installed at all. Please drop dependency on dev-qt/qtcore:5 to allow users of Fcitx and e.g. GNOME to install app-i18n/fcitx without needlessly installing dev-qt/qtcore:5.
Test suite is optionally using dev-qt/linguist-tools:5 and dev-qt/qtcore:5: tests/CMakeLists.txt: find_package(Qt5LinguistTools CONFIG) set_package_properties( Qt5LinguistTools PROPERTIES URL "http://www.qt.io/" DESCRIPTION "Qt5 linguist tools." TYPE OPTIONAL PURPOSE "Required to run tests for the ECMPoQmTools module." ) find_package(Qt5Core CONFIG) set_package_properties( Qt5Core PROPERTIES URL "http://www.qt.io/" DESCRIPTION "Qt5 core library." TYPE OPTIONAL PURPOSE "Required to run tests for the ECMQtDeclareLoggingCategory module, and for some tests of the KDEInstallDirs module." ) dev-qt/qttest is rather not used, so I suggest to add KDE_TEST="false". You might use DEPEND="test? ( $(add_qt_dep qtcore) $(add_qt_dep linguist-tools) )" if desired.
In overlay: https://gitweb.gentoo.org/proj/kde.git/commit/?id=0efb4b00d16904295d1eee505f0765274db37397
Thanks. https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=0fdba172a462e9a22ad68966522b22c40bd82e72
