[Qgis-developer] QGIS setup with Qt 5 on mac

[Etienne Trimaille]

Thanks David and Matthias for providing some feedbacks about QGIS 3 on mac.
I also would like QGIS 3 compiling on mac.

I hope you will update the install.md on the repo when you will have a
working workflow ? Thanks

2016-11-01 1:22 GMT+07:00 Matthias Kuhn <matthias at opengis.ch>:

> Hi Diane and welcome aboard,
>
> I also didn't manage to compile master on osx yet.
>
> Some more information can be found here also:
>
> https://github.com/OSGeo/homebrew-osgeo4mac/pull/146#
> issuecomment-254011621
>
> I think most of the dependencies should meanwhile be available on
> homebrew (but not sure).
>
> Regards
> Matthias
>
> On 10/31/2016 06:56 PM, David Marteau wrote:
> > Hi
> >
> > I will speak with my own experience using and compiling Qgis on Mac (El
> capitan and Maverick):
> >
> > First I use Macport: MacPort use clang/libc++ by default (at least with
> XCode 5.3 on Maverick, 7.3 on El capitan) so this should solve one of your
> problems.
> > I have installed qt5 from MacPort without problems.
> >
> > The problems arise with some ports that do not fully support qt5
> variants and you need to tweak some portfiles: qscintilla and py-qscintilla
> are one of them and are required by Qgis.
> > If you are interested I can give you my diff files for portfiles.
> >
> > I had to build qwt directly from sources because tweaking Macport
> portfiles was too painful, but I did not encounter any serious problems as
> far as I can remember.
> >
> > No source code was needed to be patched, only compilation configurations.
> >
> > Once you get all dependencies you need to set the cmake options
> accordingly to the path of your installation:
> >
> > Here is my defines:
> >
> > »   »   -DCMAKE_INSTALL_PREFIX:PATH=/Applications \
> > »   »   -DWITH_SERVER=ON \
> > »   »   -DWITH_PYSPATIALITE=ON \
> > »   »   -DPYTHON_CUSTOM_FRAMEWORK:PATH=/opt/local/Library/Frameworks/Python.framework
> \
> > »   »   -DEXPAT_INCLUDE_DIR:PATH=/opt/local/include \
> > »   »   -DEXPAT_LIBRARY:FILEPATH=/opt/local/lib/libexpat.dylib \
> > »   »   -DSQLITE3_INCLUDE_DIR:PATH=/opt/local/include \
> > »   »   -DSQLITE3_LIBRARY:FILEPATH=/opt/local/lib/libsqlite3.dylib \
> > »   »   -DQT_QMAKE_EXECUTABLE:FILEPATH=/opt/local/libexec/qt5/bin/qmake
> \
> > »   »   -DQWT_INCLUDE_DIR:PATH=/usr/local/qwt-6.1.3/lib/qwt.framework/Versions/6/Headers
> \
> > »   »   -DQWT_LIBRARY:FILEPATH=/usr/local/qwt-6.1.3/lib/qwt.framework/Versions/6/qwt
> \
> > »   »   -DQCA_INCLUDE_DIR:PATH=/opt/local/include/qca \
> > »   »   -DQCA_LIBRARY:FILEPATH=/opt/local/lib/libqca.dylib \
> > »   »   -DQSCINTILLA_INCLUDE_DIR:PATH=/opt/local/libexec/qt5/include \
> > »   »   -DQSCINTILLA_LIBRARY:FILEPATH=/opt/local/libexec/qt5/lib/libqscintilla2.dylib
> \
> > »   »   -DQT_LRELEASE_EXECUTABLE:FILEPATH=/opt/local/libexec/qt5/bin/lrelease
> \
> >
> > I hope that full support for qt5 will be available from Macport soon,
> but for now I have managed to compile Qgis from the master branch without
> struggling too much.
> >
> > Best,
> > David
> >
> >> Le 31 oct. 2016 à 16:12, Diane Perez <lintawa at gmail.com> a écrit :
> >>
> >> Dear QGIS developers,
> >>
> >> First of all, thank you very much for the great job, I have been a very
> happy user for years !
> >>
> >> I would like to contribute now to the development, but I found myself
> stuck at the installation of dependencies.
> >>
> >> According to the instructions of the INSTALL file provided with the
> source code, mac users should use Qt 4 and compile and install a bunch of
> dependencies for which binaries are not available (mainly Spatialindex,
> SIP, QScintilla2, PyQt, Qwt and bison) before being able to compile QGIS. I
> followed the instructions and got stuck at compiling QGIS as the master now
> requires Qt 5.
> >>
> >> Now as I actually started by installing Qt 5 by mistake, I had the
> opportunity to see that it leads to a lot of problems to compile the
> dependencies. As far as I understand, Qt 5 requires C++11, which means one
> must use the new libc++ library instead of the old libstdc++ (at least on
> my configuration, with El Capitan and clang/llvm). Some modifications are
> such that mixing both is not possible, so everything must be compiled from
> start with C++11 and libc++. Unfortunately most of the dependencies I
> mention above do not compile without tweaking, and I stopped doing it when
> it started meaning not only modifying the Makefiles but the code itself...
> >>
> >> I guess some of you work on mac, and have a far better understanding of
> all this than me. So my question is : how did you install those
> dependencies to compile the last version of QGIS with Qt 5 ?
> >>
> >> Did you have to compile again all of them or only a subset using Qt 5
> and C++11 ? If so, how did you do it ? I got stuck at Qwt (6.1.3) which
> uses lots of functions deprecated in Qt 5.
> >>
> >> I hope someone can give me pointers, as I would really like to
> contribute to QGIS (and hopefully fix a few bugs bugging me) !
> >>
> >> Best regards,
> >> Diane
> >>
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