[Qgis-developer] Building on OSX with brew

Tim Sutton lists at linfiniti.com
Fri Mar 28 23:33:30 PDT 2014


On Sat, Mar 29, 2014 at 1:45 AM, Larry Shaffer <larrys at dakotacarto.com>wrote:

> Hi Tim,
> Just a quick note that the homebrew-osgeo repo (tap) is now under the
> OSGeo user account [0]; switched over today. Since it was transferred on
> github, the dakcarto/osgeo4mac tap should still work, since it is aliased
> by github. If you run into issues, follow the new notes here [1], i.e.
> switch taps. Sorry about the timing.
> If you have the Kyngchaos stable QGIS packages installed, you may be
> better off using the Homebrew python (and rebuilding), but only if you run
> into significant Python issues, some of which many not show up until you
> run the app. This is because the Kyngchaos GDAL.framework and others
> already have *.pth files in your system site-packages.
> This is the reason for the 'isolation' mode in the qgis-22 formula and the
> use of the osgeo-osgeo4mac/enviro/python_startup.py script: to coexist, and
> not interfere, with the Kyngchaos install. Isolation requires a separate
> Python, for now, since initializing a virtualenv for QGIS.app on
> double-click startup is not yet supported (at least I think it's not). In
> isolation mode, no modules from /Library/* locations are loaded. So, you
> will have to install all modules in Homebrew's site-packages, using
> Be really nice to have a virtualenv creation and configuration GUI in the
> main Options, as previously discussed.
> [0] https://github.com/OSGeo/homebrew-osgeo4mac
> [1]
> https://github.com/OSGeo/homebrew-osgeo4mac#how-do-i-install-these-formulae

Ok thanks. I have avoided putting William's packages on my system so that I
can do a 'pure' homebrew install. The qgis-22 step worked for me but I
needed to do a

brew update


brew install qgis-22 --only-dependencies --with-grass --with-globe

In order for the above step to work, so you may want to add that to your
notes. I'm still working my way through the rest of your recipe.




> Regards,
> Larry
> On Fri, Mar 28, 2014 at 5:09 PM, Tim Sutton <lists at linfiniti.com> wrote:
>> On Thu, Mar 27, 2014 at 9:05 PM, Larry Shaffer <larrys at dakotacarto.com>wrote:
>>> Hi Tim,
>>> On Thu, Mar 27, 2014 at 5:57 AM, Tim Sutton <lists at linfiniti.com> wrote:
>>>> Hi Larry
>>>> I finally have the time to sit down and try to get your recipe for
>>>> building / debugging QGIS under QtCreator a try, but I cant seem to find
>>>> your notes on this. I have two screenies showing some of the settings but
>>>> not quite enough info to get it working. Currently I am getting this (see
>>>> [2] below) output when trying to run cmake in QtCreator. I am building
>>>> using options in [1].
>>>> I also made this dirty hack so that some python libs could be found [3].
>>>> Can you point me in the right direction of any notes etc you have?
>>> I will add documentation about this to the site [0]. I have been
>>> debugging this setup and now having it working smoothly on Mac 10.7.5 and
>>> 10.9.2. You can use the following notes for now and we can work on making
>>> the online docs better, eventually including it in INSTALL somehow.
>>> Basic instructions:
>>> 1) Ensure deps are installed:
>>> Install required build Python modules (use pip on system or Homebrew's
>>> pip when using its Python). You can also tap homebrew/python for some more
>>> complex modules [1]:
>>> * numpy  <-- this is used by gdal.rb install, if building with python
>>> option, which is the default
>>> $ brew tap homebrew/science
>>> $ brew tap dakcarto/osgeo4mac
>>> $ brew install qgis-22 --only-dependencies --with-grass --with-globe
>>> [--with-oracle]
>>> Install required run-time Python modules :
>>> * psycopg2 matplotlib pyparsing
>>> 2) Copy the following directory elsewhere and use it from there:
>>> HOMEBREW_PREFIX/Library/Taps/dakcarto-osgeo4mac/scripts
>>> Note: it's important to not edit the scripts where they are located, in
>>> the tap, because it is a git repo. You should keep that working tree clean
>>> so that `brew update` always works.
>>> Open and review scripts:
>>> * qgis-cmake-options.py - for generating CMake option string for use in
>>> Qt Creator when built off dependencies from homebrew-osgeo4mac tap. Edit
>>> CMake options to suit your build needs. Note, the current script usually
>>> has CMake options for building QGIS with *all* options that the current
>>> Homebrew formula, e.g. qgis-22, supports, which can include things like
>>> Oracle support, etc. You will probably want to edit it and comment out such
>>> lines for an initial build. I add this as an external tool in Qt Creator
>>> [2].
>>> * qgis-set-app-env.py - for setting env vars in dev build and installed
>>> QGIS.app, to ensure they are available on double-click run. Needs to stay
>>> in the same directory as the next scripts.
>>> * qgis-creator-build.sh - sets up the build environ and ensures the
>>> QGIS.app in the build directory can find resources, so it can run from
>>> there.
>>> * qgis-creator-install.sh - installs the app and ensures QGIS.app has
>>> proper env variables, so it can be moved around on the filesystem.
>>> Currently QGIS.app bundling beyond QGIS_MACAPP_BUNDLE=0 is not supported.
>>> 3) Configure a Creator Qt version and kit [3, 4].
>>> 4) Configure Creator project with prepended environment variables and to
>>> use the build and install scripts [5].
>>> This whole setup supports builds where the OSGeo4Mac deps are in a
>>> non-standard Homebrew location, e.g. /usr/local/osgeo4mac or
>>> /opt/osgeo4mac, instead of /usr/local. This allows for multiple build
>>> scenarios, including placing the deps on an external drive, though that
>>> requires building all deps with special 'bottle' parameters.
>>> I've tried to make the setup as simple and flexible as possible, though
>>> I'm sure it can use some work.
>>> Let me know how it goes!  :-)
>>> [0] https://github.com/dakcarto/homebrew-osgeo4mac
>>> [1] https://github.com/Homebrew/homebrew-python
>>> In screen snaps, substitute the appropriate directories for your setup,
>>> as per notes above:
>>> [2]
>>> http://drive.dakotacarto.com/osgeo4mac/QtCreator_osgeo4mac_QGIS-CMakeOptions.png
>>> [3] http://drive.dakotacarto.com/osgeo4mac/QtCreator_osgeo4mac_Kits.png
>>> [4]
>>> http://drive.dakotacarto.com/osgeo4mac/QtCreator_osgeo4mac_QtVersions.png
>>> [5]
>>> http://drive.dakotacarto.com/osgeo4mac/QtCreator_osgeo4mac_QGIS-Project.png
>> Thanks very much Larry - I'm running through your notes now!
>> Regards
>> Tim
> ---- 8< ---snip------
>> --
>> Tim Sutton - QGIS Project Steering Committee Member
>> ==============================================
>> Please do not email me off-list with technical
>> support questions. Using the lists will gain
>> more exposure for your issues and the knowledge
>> surrounding your issue will be shared with all.
>> Irc: timlinux on #qgis at freenode.net
>> ==============================================

Tim Sutton - QGIS Project Steering Committee Member
Please do not email me off-list with technical
support questions. Using the lists will gain
more exposure for your issues and the knowledge
surrounding your issue will be shared with all.

Irc: timlinux on #qgis at freenode.net
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