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azp
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PostPosted: Sat Feb 17, 2018 6:45 pm    Post subject: [Solved]Help with writing ebuild dependent on running qmake5 Reply with quote

I'm trying to write an ebuild for renderdoc (including the Qt5 GUI) and it's working for the most part. The issue I have is that it uses the qmake that is set via qtchooser, that for me is qmake4. I need the ebuild to automatically choose qt5. RenderDoc is built using CMake, which makes it a bit confusing, I'm having trouble understand where to set what...

Code:
# Copyright 1999-2017 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2

EAPI="6"

PYTHON_COMPAT=( python3_6 )

inherit qmake-utils cmake-multilib eutils python-single-r1 git-r3

DESCRIPTION="A tool for tracing, analyzing, and debugging graphics APIs"
HOMEPAGE="https://github.com/baldurk/renderdoc"
EGIT_REPO_URI="https://github.com/baldurk/renderdoc.git"
EGIT_BRANCH="v1.x"
CMAKE_BUILD_TYPE="Release"
CMAKE_BUILD_GENERATOR="Ninja"
QMAKE_QT5_COMMAND="/usr/lib/qt5/bin/qmake"

LICENSE="MIT"
SLOT="0"
KEYWORDS="~amd64 ~arm ~x86"
IUSE="+cli +qt5 +python"

RDEPEND="${PYTHON_DEPS}
   x11-libs/libX11
   x11-libs/libxcb
   x11-libs/xcb-util-keysyms
   dev-util/cmake
   sys-devel/bison
   sys-devel/autoconf
   sys-devel/automake
   dev-libs/libpcre
   >=sys-devel/gcc-5.0:*
   python? (
      >=dev-lang/python-3.6
   )
   qt5? (
      dev-qt/qtcore:5
      dev-qt/qtgui:5
      dev-qt/qtwidgets:5
      dev-qt/qtsvg:5
      dev-qt/qtx11extras:5
   )"
DEPEND="${RDEPEND}"


The QRenderDoc CMakeLists.txt specifies the QMAKE_QT5_COMMAND variable to "qmake", and I've tried setting it specifically in the ebuild, but it doesn't work. You can see the file here:
https://github.com/baldurk/renderdoc/blob/v0.x/qrenderdoc/CMakeLists.txt

Do I need to patch the CMakeLists.txt, or is it possible to just set a smart variable somewhere, and it automatically solves the problem?
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Last edited by azp on Wed Mar 14, 2018 9:33 pm; edited 1 time in total
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azp
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PostPosted: Sat Feb 17, 2018 7:49 pm    Post subject: Reply with quote

I tried setting the QT_SELECT variable in the ebuild and that seems to do the trick. I don't know if that's an OK way of doing it, but there seems to be a bunch of official ebuilds doing it.

Code:
export QT_SELECT=5

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fedeliallalinea
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PostPosted: Sat Feb 17, 2018 7:52 pm    Post subject: Reply with quote

export QT_SELECT=qt5? (example /usr/portage/media-video/vlc/vlc-2.2.6.ebuild)
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azp
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PostPosted: Sun Feb 18, 2018 1:03 am    Post subject: Reply with quote

fedeliallalinea wrote:
export QT_SELECT=qt5? (example /usr/portage/media-video/vlc/vlc-2.2.6.ebuild)


Thanks, QT_SELECT did the trick!
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Chiitoo
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PostPosted: Sun Feb 18, 2018 6:32 am    Post subject: ><)))°€ Reply with quote

Using QT_SELECT might not be the best of ideas:

Freenode #gentoo-qt wrote:
<@kensington> it's better to patch to use "$(qt5_get_bindir)"/qmake instead, QT_SELECT is some qtchooser implementation
detail and not guaranteed to be stable

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gargoylle_ltk
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PostPosted: Sat Mar 10, 2018 5:46 am    Post subject: Reply with quote

Code:
qmake -qt=qt5

This seems to work for me when building anything depending on Qt.
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azp
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PostPosted: Sat Mar 10, 2018 1:37 pm    Post subject: Reply with quote

gargoylle_ltk wrote:
Code:
qmake -qt=qt5
This seems to work for me when building anything depending on Qt.


I tried to make a patch that did that, but couldn't get it to work... Perhaps I should try again. I also thought about reporting a bug upstream, so they fixed it there instead.
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