Install old version PyQt4 on a mac by compiling the source
Felix Voigt
info at felibunda.eu
Fri Aug 6 11:19:21 BST 2021
> On 1. Aug 2021, at 22:42, Felix Voigt <info at felibunda.eu> wrote:
>
>
>
>> On 14. Jul 2021, at 07:39, Felix Voigt <info at felibunda.eu> wrote:
>>
>>
>>
>>> On 13. Jul 2021, at 23:01, Phil Thompson <phil at riverbankcomputing.com> wrote:
>>>
>>> On 13/07/2021 21:39, Felix Voigt wrote:
>>>>> On 10. Jul 2021, at 12:29, Phil Thompson <phil at riverbankcomputing.com> wrote:
>>>>> On 10/07/2021 11:16, Felix Voigt wrote:
>>>>>>> On 9. Jul 2021, at 10:09, Phil Thompson <phil at riverbankcomputing.com> wrote:
>>>>>>> On 08/07/2021 19:37, Felix Voigt wrote:
>>>>>>>> Hello everyone,
>>>>>>>> today I tried the same with PyQt5 with the following results.
>>>>>>>> The configure process succeeded:
>>>>>>>> cd ~/documents/tmp/PyQt5-5.15.4
>>>>>>>> ~/.pyenv/versions/2.7.18/bin/python2.7 configure.py --qmake
>>>>>>>> /usr/local/Cellar/qt at 5/5.15.2/bin/qmake
>>>>>>>> --sip=/Users/felixvoigt/.pyenv/versions/2.7.18/bin/sip --verbose
>>>>>>>> The make process failed:
>>>>>>>> make
>>>>>>>> -> In file included from
>>>>>>>> /Users/felixvoigt/documents/tmp/PyQt5-5.15.4/sip/QtCore/qsocketnotifier.sip:26:
>>>>>>>> /usr/local/Cellar/qt at 5/5.15.2/lib/QtCore.framework/Headers/qsocketnotifier.h:117:35:
>>>>>>>> error: constexpr function never produces a constant
>>>>>>>> expression [-Winvalid-constexpr]
>>>>>>>> Q_DECL_CONSTEXPR_NOT_WIN bool isValid() const noexcept { return
>>>>>>>> *this != QSocketDescriptor(); }
>>>>>>>> ^
>>>>>>>> /usr/local/Cellar/qt at 5/5.15.2/lib/QtCore.framework/Headers/qsocketnotifier.h:117:75:
>>>>>>>> note: undefined function 'operator!=' cannot be used
>>>>>>>> in a constant expression
>>>>>>>> Q_DECL_CONSTEXPR_NOT_WIN bool isValid() const noexcept { return
>>>>>>>> *this != QSocketDescriptor(); }
>>>>>>>> ^
>>>>>>>> /usr/local/Cellar/qt at 5/5.15.2/lib/QtCore.framework/Headers/qsocketnotifier.h:124:42:
>>>>>>>> note: declared here
>>>>>>>> friend Q_DECL_CONSTEXPR_NOT_WIN bool operator!=(QSocketDescriptor lhs,
>>>>>>>> 1 error generated.
>>>>>>>> Any ideas how to fix it?
>>>>>>>> Kind regards
>>>>>>>> feli_x
>>>>>>> As the error is referring to Qt source code and not SIP generated code then the problem may be your version of Xcode.
>>>>>>> Phil
>>>>>> Hello Phil and thanks,
>>>>>> meanwhile I updated my xcode from beta 9.0 to 11.3.1.
>>>>>> I managed to configure pyqt5 via:
>>>>>> ~/.pyenv/versions/2.7.18/bin/python2.7 configure.py --qmake
>>>>>> /usr/local/Cellar/qt at 5/5.15.2/bin/qmake
>>>>>> --sip=/Users/felixvoigt/.pyenv/versions/2.7.18/bin/sip —verbose
>>>>>> Although there was a warning, which I neglected:
>>>>>> Project WARNING: Qt requires at least version 10.14 of the platform
>>>>>> SDK, you're building against version 10.13. Please upgrade.
>>>>>> The make process succeeded, there were also many warnings, which are
>>>>>> too many to store them I thought.
>>>>>> Finally:
>>>>>> make install
>>>>>> Now, my next problem is, if I start the python program, the line "from
>>>>>> PyQt5 import QtCore, QtGui” gives an error message:
>>>>>> ~/.pyenv/versions/2.7.18/bin/python2.7 test.py
>>>>>> Traceback (most recent call last):
>>>>>> File "test.py", line 1, in <module>
>>>>>> from PyQt5 import QtCore, QtGui
>>>>>> ImportError: No module named sip
>>>>>> I tried including the folder
>>>>>> /Users/felixvoigt/.pyenv/versions/2.7.18/bin in my PATH, which was not
>>>>>> a solution.
>>>>>> Does somebody know how to configure sip correctly such that it can be
>>>>>> found by pyqt5?
>>>>> https://www.riverbankcomputing.com/static/Docs/PyQt5/installation.html#building-the-sip-module
>>>>> Phil
>>>> Hello again,
>>>> thanks for the answer.
>>>> If I take the PyQt5_sip-12.9.0.tar.gz version downloaded from
>>>> https://pypi.org/project/PyQt5-sip/#files, I obtain the following:
>>>> After the commands
>>>> cd ~/documents/tmp/PyQt5_sip-12.9.0
>>>> ~/.pyenv/versions/2.7.18/bin/python2.7 setup.py build
>>>> the following error results:
>>>> In file included from ./sipint.h:26:
>>>> ./sip.h:28:2: error: "This version of SIP requires Python v3.5 or later"
>>>> #error "This version of SIP requires Python v3.5 or later”
>>>> Is there a version of PyQt5_sip which is applicable to python2.7? And
>>>> by the way, do I need sip or PyQt5_sip, and what is the difference?
>>>> Sorry for many questions,
>>>> best regards
>>>
>>> My apologies (Python v2 is no longer supported), you probably need to use SIP v4 (also no longer supported) which you can find here...
>>>
>>> https://www.riverbankcomputing.com/software/sip/download
>>>
>>> Phil
>>
>> Dear Phil,
>>
>> thanks. I already had compile sip4.19.25, but PyQt5.15.4 did not find the module.
>> On the site http://python.6.x6.nabble.com/private-sip-td5235854.html I found the solution. I have to configure sip with the option --sip-module=PyQt5.sip.
>> In my case this was:
>> Erase the folder sip-4.19.25 and extract it freshly from sip-4.19.25.tar.gz.
>> cd ~/documents/tmp/sip-4.19.25
>> ~/.pyenv/versions/2.7.18/bin/python2.7 configure.py --sip-module=PyQt5.sip
>> make
>> make install
>>
>> Now my test program does not give any error messages! Thanks again
>> feli_x
>>
>>
>
> Hello again,
>
> today I tried to compile PyQt4 for another python program.
> I downloaded PyQt4_gpl_mac-4.12.3.tar.gz from https://riverbankcomputing.com/software/pyqt/download and unpacked it into ~/documents/tmp.
> cd ~/documents/tmp/PyQt4_gpl_mac-4.12.3
> ~/.pyenv/versions/2.7.18/bin/python2.7 configure.py --qmake /usr/local/Cellar/qt at 4/4.8.7_6/bin/qmake --sip=/Users/felixvoigt/.pyenv/versions/2.7.18/bin/sip —verbose
>
> This effected the following output:
> Determining the layout of your Qt installation...
> /usr/local/Cellar/qt at 4/4.8.7_6/bin/qmake -spec macx-g++ -o qtdirs.mk qtdirs.pro
> make -f qtdirs.mk
> g++ -c -pipe -O2 -arch x86_64 -Xarch_x86_64 -mmacosx-version-min=10.5 -Wall -W -DQT_NO_DEBUG -DQT_CORE_LIB -DQT_SHARED -I/usr/local/etc/qt4/mkspecs/macx-g++ -I. -I/usr/local/include/QtCore -I/usr/local/include -I. -F/usr/local/lib -o qtdirs.o qtdirs.cpp
> warning: include path for stdlibc++ headers not found; pass '-stdlib=libc++' on the command line to use the libc++ standard library instead [-Wstdlibcxx-not-found]
> qtdirs.cpp:1:10: fatal error: 'QCoreApplication' file not found
> #include <QCoreApplication>
> ^~~~~~~~~~~~~~~~~~
> 1 warning and 1 error generated.
> make: *** [qtdirs.o] Error 1
> Error: Failed to determine the layout of your Qt installation. Try again using
> the --verbose flag to see more detail about the problem.
>
> I have the impression that some paths are not set correctly. E.g. the right path to QtCore is
> /usr/local/Cellar/qt at 4/4.8.7_6/include/QtCore
> But I do not know, how to set the path for the configure process.
>
> Does somebody have a clue?
>
> Regards
> feli_x
>
>
Dear all,
I have come one step further. As a workaround I have set a symbolic link:
ln -s ../Cellar/qt at 4/4.8.7_6/include/QtCore Q/usr/local/include/QtCore
Now the output after
~/.pyenv/versions/2.7.18/bin/python2.7 configure.py --qmake /usr/local/Cellar/qt at 4/4.8.7_6/bin/qmake --sip=/Users/felixvoigt/.pyenv/versions/2.7.17/bin/sip —verbose
is
Determining the layout of your Qt installation...
/usr/local/Cellar/qt at 4/4.8.7_6/bin/qmake -spec macx-llvm -o qtdirs.mk qtdirs.pro
make -f qtdirs.mk
llvm-g++ -c -pipe -O2 -arch x86_64 -Wall -W -DQT_NO_DEBUG -DQT_CORE_LIB -DQT_SHARED -I/usr/local/etc/qt4/mkspecs/macx-llvm -I. -I/usr/local/Cellar/qt at 4/4.8.7_6/lib/QtCore.framework/Versions/4/Headers -I/usr/local/include -I. -F/usr/local/lib -o qtdirs.o qtdirs.cpp
warning: include path for stdlibc++ headers not found; pass '-stdlib=libc++' on the command line to use the libc++ standard library instead [-Wstdlibcxx-not-found]
In file included from qtdirs.cpp:1:
In file included from /usr/local/Cellar/qt at 4/4.8.7_6/lib/QtCore.framework/Versions/4/Headers/QCoreApplication:1:
In file included from /usr/local/Cellar/qt at 4/4.8.7_6/lib/QtCore.framework/Versions/4/Headers/qcoreapplication.h:45:
In file included from /usr/local/include/QtCore/qobject.h:47:
In file included from /usr/local/include/QtCore/qobjectdefs.h:45:
In file included from /usr/local/include/QtCore/qnamespace.h:45:
/usr/local/include/QtCore/qglobal.h:68:10: fatal error: 'algorithm' file not found
#include <algorithm>
^~~~~~~~~~~
1 warning and 1 error generated.
make: *** [qtdirs.o] Error 1
Error: Failed to determine the layout of your Qt installation. Try again using
the --verbose flag to see more detail about the problem.
Some idea, what the problem is, now?
Best regards
feli_x
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