Re: [Quantlib-users] Issue building QuantLib-SWIG-1.36

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Hi, there might be a couple of things you can try.

The first is checking if the problem is the mismatch between x86 and arm:
is the Python coming with Anaconda compiled for x86? If so, and if you
can't upgrade to a version for arm, you can try cross-compiling QuantLib
for x86 so it matches the architecture.  Running

./configure --with-boost-include=/opt/homebrew/include/ \
            --prefix=${HOME}/Documents/QuantLib-1.36_build --disable-shared
\
            CXXFLAGS='-O2 -stdlib=libc++ -mmacosx-version-min=10.9 -arch
x86_64' \
            LDFLAGS='-stdlib=libc++ -mmacosx-version-min=10.9 -arch x86_64’

should do that.

The second thing is to try to build a wheel instead, and install that.  As
of 1.36, the commands would be

cd QuantLib-SWIG-1.36
./configure \
    CXXFLAGS='-O2 -stdlib=libc++ -mmacosx-version-min=10.9’ \
    LDFLAGS='-stdlib=libc++ -mmacosx-version-min=10.9’ \
    PYTHON=/Users/matthew/opt/anaconda3/envs/py39/bin/python3
make -C Python

To make it work, you might have to `pip install build` in your environment,
or whatever conda requires to install modules.
When the make step completes, you should have a QuantLib wheel
in QuantLib-SWIG-1.36/Python/dist that you can try installing with pip or
conda instead of running "python setup.py install" (that I don't trust a
lot).

Let me know how it goes.

Luigi

On Mon, Nov 4, 2024 at 3:06 PM Matthew Hancock <mat...@gm...>
wrote:

> Hi Luigi,
>
> Thanks for your response. I am attempting to build QuantLib myself to turn
> on higher-resolution dates for intraday analysis.
>
> Here are the commands I am using to build QuantLib:
>
> (base) matthew@Matthews-MacBook-Pro-5 Documents % tar xzvf
> QuantLib-1.36.tar.gz
>
> (base) matthew@Matthews-MacBook-Pro-5 Documents % cd QuantLib-1.36
>
> (base) matthew@Matthews-MacBook-Pro-5 QuantLib-1.36 % ./configure
> --with-boost-include=/opt/homebrew/include/ \
>             --prefix=${HOME}/Documents/QuantLib-1.36_build
> --disable-shared \
>             CXXFLAGS='-O2 -stdlib=libc++ -mmacosx-version-min=10.9' \
>             LDFLAGS='-stdlib=libc++ -mmacosx-version-min=10.9’
>
> (base) matthew@Matthews-MacBook-Pro-5 QuantLib-1.36 % make -j8
>
> (base) matthew@Matthews-MacBook-Pro-5 QuantLib-1.36 % make install
>
> I can compile and run the C++ examples successfully.
>
> I then try and build QuantLib-SWIG-1.36:
>
> (base) matthew@Matthews-MacBook-Pro-5 Documents % tar xzf
> QuantLib-SWIG-1.36.tar.gz
>
> (base) matthew@Matthews-MacBook-Pro-5 Documents % cd
> QuantLib-SWIG-1.36/Python
>
> (base) matthew@Matthews-MacBook-Pro-5 QuantLib-SWIG-1.36 % export
> CXXFLAGS='-O2 -stdlib=libc++ -mmacosx-version-min=10.9’
>
> (base) matthew@Matthews-MacBook-Pro-5 QuantLib-SWIG-1.36 % export
> LDFLAGS='-stdlib=libc++ -mmacosx-version-min=10.9’
>
> Here I am using a conda python39 environment to build/install:
>
> (py39) matthew@Matthews-MacBook-Pro-5 Python %
> /Users/matthew/opt/anaconda3/envs/py39/bin/python3 setup.py build
>
> This generates some warnings related to compatibility between arm and x86
> (I’m building on M1):
>
> running build
> running build_py
> creating build/lib.macosx-10.15-x86_64-cpython-39/QuantLib
> copying src/QuantLib/__init__.py ->
> build/lib.macosx-10.15-x86_64-cpython-39/QuantLib
> copying src/QuantLib/QuantLib.py ->
> build/lib.macosx-10.15-x86_64-cpython-39/QuantLib
> running build_ext
> building 'QuantLib._QuantLib' extension
> creating build/temp.macosx-10.15-x86_64-cpython-39/src/QuantLib
> clang++ -O2 -stdlib=libc++ -mmacosx-version-min=10.9
> -DPy_LIMITED_API=0x03080000 -DNDEBUG
> -I/Users/matthew/Documents/QuantLib-1.36_build/include
> -I/Users/matthew/opt/anaconda3/envs/py39/include/python3.9 -c
> src/QuantLib/quantlib_wrap.cpp -o
> build/temp.macosx-10.15-x86_64-cpython-39/src/QuantLib/quantlib_wrap.o
> -std=c++17 -Wno-unused -O2 -stdlib=libc++ -mmacosx-version-min=10.9
> clang++ -O2 -stdlib=libc++ -mmacosx-version-min=10.9 -bundle -undefined
> dynamic_lookup -stdlib=libc++ -mmacosx-version-min=10.9 -O2 -stdlib=libc++
> -mmacosx-version-min=10.9
> build/temp.macosx-10.15-x86_64-cpython-39/src/QuantLib/quantlib_wrap.o
> -L/Users/matthew/Documents/QuantLib-1.36_build/lib -lQuantLib -o
> build/lib.macosx-10.15-x86_64-cpython-39/QuantLib/_QuantLib.abi3.so
> -stdlib=libc++ -mmacosx-version-min=10.9
> ld: warning: ignoring file
> /Users/matthew/Documents/QuantLib-1.36_build/lib/libQuantLib.a, building
> for macOS-x86_64 but attempting to link with file built for macOS-arm64
>
> (py39) matthew@Matthews-MacBook-Pro-5 Python %
> /Users/matthew/opt/anaconda3/envs/py39/bin/python3 setup.py install
>
> This appears to run successfully (though the package name contains x86):
>
> Installed
> /Users/matthew/opt/anaconda3/envs/py39/lib/python3.9/site-packages/QuantLib-1.36-py3.9-macosx-10.15-x86_64.egg
> Processing dependencies for QuantLib==1.36
> Finished processing dependencies for QuantLib==1.36
>
> Then trying to import QuantLib raises an error:
>
> (py39) matthew@Matthews-MacBook-Pro-5 Python % python
> Python 3.9.20 (main, Oct  3 2024, 02:27:54)
> [Clang 14.0.6 ] :: Anaconda, Inc. on darwin
> Type "help", "copyright", "credits" or "license" for more information.
> >>> import QuantLib as ql
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
>   File
> "/Users/matthew/opt/anaconda3/envs/py39/lib/python3.9/site-packages/QuantLib-1.36-py3.9-macosx-10.15-x86_64.egg/QuantLib/__init__.py",
> line 19, in <module>
>     from .QuantLib import *
>   File
> "/Users/matthew/opt/anaconda3/envs/py39/lib/python3.9/site-packages/QuantLib-1.36-py3.9-macosx-10.15-x86_64.egg/QuantLib/QuantLib.py",
> line 10, in <module>
>     from . import _QuantLib
> ImportError:
> dlopen(/Users/matthew/opt/anaconda3/envs/py39/lib/python3.9/site-packages/QuantLib-1.36-py3.9-macosx-10.15-x86_64.egg/QuantLib/_
> QuantLib.abi3.so, 0x0002): symbol not found in flat namespace
> ‘__ZN8QuantLib12SmileSection6updateEv'
>
> Thanks for your help!
>
> Best
> Matthew
>
>
> On Nov 4, 2024, at 4:38 AM, Luigi Ballabio <lui...@gm...>
> wrote:
>
> Hi Matthew,
>     I assume you've changed something in the library so you can't just use
> `pip install QuantLib`, correct?
> May you post the exact commands you're using to build the library and
> Python module? Thanks!
>
> Luigi
>
>
> On Sun, Nov 3, 2024 at 2:30 AM Matthew Hancock <mat...@gm...>
> wrote:
>
>> Hi QuantLib team,
>>
>> I am running into an issue building QuantLib-SWIG-1.36 on a Mac M1
>> running Mac OS 10.14. I am using an Anaconda version of Python 3.8.
>>
>> I can build QuantLib-1.36 with no issue (I added the --disabled-shared
>> flag).
>>
>> However, when I build QuantLib-SWIG-1.36 and try to import the Python
>> library, I get an import error:
>>
>> >>> import QuantLib
>> Traceback (most recent call last):
>>   File "<stdin>", line 1, in <module>
>>   File
>> "/Users/matthew/opt/anaconda3/lib/python3.8/site-packages/QuantLib-1.36-py3.8-macosx-10.9-x86_64.egg/QuantLib/__init__.py",
>> line 19, in <module>
>>     from .QuantLib import *
>>   File
>> "/Users/matthew/opt/anaconda3/lib/python3.8/site-packages/QuantLib-1.36-py3.8-macosx-10.9-x86_64.egg/QuantLib/QuantLib.py",
>> line 10, in <module>
>>     from . import _QuantLib
>> ImportError:
>> dlopen(/Users/matthew/opt/anaconda3/lib/python3.8/site-packages/QuantLib-1.36-py3.8-macosx-10.9-x86_64.egg/QuantLib/_
>> QuantLib.abi3.so <http://quantlib.abi3.so/>, 0x0002): symbol not found
>> in flat namespace '__ZN8QuantLib12SmileSection6updateEv'
>>
>> Any help would be much appreciated, thanks!
>>
>> Best
>> Matthew
>>
>> _______________________________________________
>> QuantLib-users mailing list
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>>
>
>