[QGIS-Developer] QGIS master branch fails make install on macOS 10.12.6

Joel Buckley qgis at spam.joelbuckley.com.au
Wed Oct 11 16:25:32 PDT 2017 

Thanks Larry, that's interesting. libqscintilla2_qt5 is already in 
cmake/FindQScintilla.cmake. The output of my cmake command also tells me 
that it's finding QScintilla2 in 
/usr/local/lib/libqscintilla2_qt5.dylib.

The problem seems to be that upon compilation, Qsci.so expects it to be 
called libqscintilla2.dylib.  If I remove the symlink I've created after 
compilation, but before runtime, I get:

Couldn't load PyQGIS.
Python support will be disabled.


Traceback (most recent call last):
  File "", line 1, in 
  File "/Users/joel/Applications/QGIS.app/Contents/MacOS/../Resources/python/qgis/gui/__init__.py", line 27, in 
    from qgis._gui import *
ImportError: dlopen(/Users/joel/Applications/QGIS.app/Contents/MacOS/../Resources/python/PyQt5/Qsci.so, 2): Library not loaded: @loader_path/../../../MacOS/lib/libqscintilla2.dylib
  Referenced from: /Users/joel/Applications/QGIS.app/Contents/Resources/python/PyQt5/Qsci.so
  Reason: image not found

So it seems to me that Qsci expects it to be in /usr/local/lib, called 
just libqscintilla2.dylib. If I move the symlink back and don't 
recompile, the application launches without error.

Regards,

-- 
Joel Buckley

On Wed, Oct 11, 2017 at 10:40:42AM -0600, Larry Shaffer wrote:
>Hi Joel,
>
>On Tue, Oct 10, 2017 at 11:39 PM, Joel Buckley <qgis at spam.joelbuckley.com.au
>> wrote:
>
>> To close the loop on this, the problem was that though qscintilla2 was
>> installed on my system (OS X), it was not called simply
>> 'libqscintilla2.dylib' in /usr/local/lib.
>>
>> The fix is:
>> $ cd /usr/local/lib
>> $ ln -s libqscintilla2_qt5.dylib libqscintilla2.dylib
>>
>
>You should avoid this, as the symlink ends up spoofing that library's Qt4
>naming convention. Better to make sure the FindQScintilla.cmake module
>properly locates the name (which doesn't have any issues with finding it
>here on macOS 10.11.6 using Homebrew).
>
>Try adding libqscintilla2_qt5 to QSCINTILLA_LIBRARY_NAMES in:
>https://github.com/qgis/QGIS/blob/master/cmake/FindQScintilla.cmake
>
>and see if that helps.
>
>Regards,
>
>Larry Shaffer
>Dakota Cartography
>Black Hills, South Dakota
>----------------------------------
>Boundless Desktop and QGIS Support/Development
>Boundless Spatial - http://boundlessgeo.com
>lshaffer at boundlessgeo.com
>
>Regards,
>>
>> --
>> Joel Buckley
>>
>>
>> On Tue, Oct 10, 2017 at 03:29:30PM +1100, Joel Buckley wrote:
>>
>>> You're right, running `make clean` and starting the process again had it
>>> all working. Thanks!
>>>
>>> So the only remain hang-up I have, is that upon launch (of either the
>>> standalone binary, or the `make`d launcher), I get the following error:
>>> ---
>>> Couldn't load PyQGIS.
>>> Python support will be disabled.
>>>
>>>
>>> Traceback (most recent call last):
>>> File "", line 1, in
>>> File "/Users/joel/Documents/QGIS/build/output/python/qgis/gui/__init__.py",
>>> line 27, in
>>>   from qgis._gui import *
>>> ModuleNotFoundError: No module named 'PyQt5.Qsci'
>>> ---
>>>
>>> I have searched on this, and tried reinstalling Qscintilla2 (via
>>> homebrew). I've tried grepping for Qsci to determine if it's not being
>>> picked up, but I'm not familiar enough with the build process just yet
>>> to tell why it mightn't be compiled in.
>>>
>>> Thanks for your help so far, and I hope this is my last query for now -
>>> any suggestions on this error?
>>>
>>> If it helps, I am running the following cmake:
>>> cmake -D CMAKE_INSTALL_PREFIX=~/Applications \
>>> -D CMAKE_BUILD_TYPE=MINSIZEREL \
>>> -D ENABLE_TESTS=TRUE \
>>> -D SPATIALINDEX_LIBRARY=/usr/local/lib/libspatialindex.dylib \
>>> -D SPATIALINDEX_INCLUDE_DIR=/usr/local/include/spatialindex \
>>> -D QWT_LIBRARY=/usr/local/Cellar/qwt/6.1.3_4/lib/qwt.framework \
>>> -D QWT_INCLUDE_DIR=/usr/local/Cellar/qwt/6.1.3_4/lib/qwt.framework/Headers
>>> \
>>> -D BISON_EXECUTABLE=/usr/local/bin/bison \
>>> -D PYTHON_EXECUTABLE=/usr/local/bin/python3 \
>>> -D CMAKE_PREFIX_PATH=/usr/local/opt/qt \
>>> -D WITH_BINDINGS=TRUE \
>>> -D WITH_SERVER=TRUE \
>>> -D QSCINTILLA_INCLUDE_DIR=/usr/local/Cellar/qscintilla2/2.10.1_1/include
>>> \
>>> -D QSCINTILLA_LIBRARY=/usr/local/Cellar/qscintilla2/2.10.1_1/lib/libqscintilla2_qt5.dylib
>>> \
>>> -D GRASS_INCLUDE_DIR7=/usr/local/Cellar/grass7/7.2.1/grass-base/include \
>>> -D GRASS_PREFIX7=/usr/local/Cellar/grass7/7.2.1/grass-base/ \
>>> -D QSCINTILLA_LIBRARY=/usr/local/lib/libqscintilla2_qt5.dylib \
>>> -D QSCINTILLA_INCLUDE_DIR:PATH=/usr/local/include \
>>> ..
>>>
>>> Regards,
>>>
>>> --
>>> Joel Buckley
>>>
>>> On Mon, Oct 09, 2017 at 10:51:04AM +0200, David Marteau wrote:
>>>
>>>> Hi
>>>>
>>>> Sorry but the 'make install' seems to work correctly for me on OSX
>>>> 10.11.6: I have a stand alone binary installed at the location specified by
>>>> CMAKE_INSTALL_PREFIX - I'm running several versions of QGIS and then
>>>> nee to have different install paths. Is your ~/Applications/QGIS.app a
>>>> link ?
>>>>
>>>> David.
>>>>
>>>> Le 9 oct. 2017 à 01:20, Joel Buckley <qgis at spam.joelbuckley.com.au> a
>>>>> écrit :
>>>>>
>>>>> Thanks, this helped. I'm now able to launch it from the command line
>>>>> without a problem.
>>>>>
>>>>> One thing I've noticed though, is `open -a ~/Applications/QGIS.app` will
>>>>> actually invoke the binary created in QGIS/build/output/ - my `make`
>>>>> output (if you ⌘-click on the application in the Dock, you will be shown
>>>>> the location of the running application).  I imagined a standalone
>>>>> binary would be created at `make install`.  Is there a separate set of
>>>>> steps to create a standalone binary? I'm trying to make some changes and
>>>>> distribute to a few others for them to try.
>>>>>
>>>>> Thanks again for the QT_QPA_PLATFORM_PLUGIN_PATH tip.
>>>>>
>>>>> Regards,
>>>>>
>>>>> --
>>>>> Joel Buckley
>>>>>
>>>>> On Fri, Oct 06, 2017 at 01:59:30PM +0200, David Marteau wrote:
>>>>>
>>>>>> Hi
>>>>>>
>>>>>> Try to define the environment variable QT_QPA_PLATFORM_PLUGIN_PATH=/o
>>>>>> pt/local/libexec/qt5/plugins/platforms (it may depends on how is your
>>>>>> qt5 installation - this path is ok for Macport installation)
>>>>>>
>>>>>> According to my experience (see https://www.3liz.com/blog/rldh
>>>>>> ont/index.php?post/2017/06/01/How-to-build-qgis-on-OSX-with-MacPort)
>>>>>> : If this variable is not defined then QGIS will crash at startup.
>>>>>>
>>>>>>
>>>>>> Le 6 oct. 2017 à 09:46, Joel Buckley <qgis at spam.joelbuckley.com.au> a
>>>>>>> écrit :
>>>>>>>
>>>>>>> Hi,
>>>>>>>
>>>>>>> I am having some difficulty running `make install`, and compiling
>>>>>>> QGIS into a single standalone application on macOS. I can successfully run
>>>>>>> configuration and `make`, and can launch the `make`-d code from
>>>>>>> build/output/bin with no problem.
>>>>>>>
>>>>>>> `make install` runs without complaint and returns 0 (success), but
>>>>>>> when I try to launch the newly create QGIS.app, it immediately crashes, and
>>>>>>> produces a crash report (attached for brevity).
>>>>>>>
>>>>>>> I have googled and attempted to parse the crash log, but the errors
>>>>>>> it reports are beyond my capability. I'm hoping someone on the list might
>>>>>>> have some input on how to remedy this?
>>>>>>>
>>>>>>> Configuration information:
>>>>>>> QGIS version: current master branch
>>>>>>> QT5, python 3
>>>>>>> macOS 10.12.6
>>>>>>>
>>>>>>> Regards,
>>>>>>>
>>>>>>> --
>>>>>>> Joel Buckley
>>>>>>>
>>>>>>> <crash.txt>_______________________________________________
>>>>>>> QGIS-Developer mailing list
>>>>>>> QGIS-Developer at lists.osgeo.org
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>>>>>>>
>>>>>>
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