[Quantlib-users] Trouble installing QuantLib-SWIG

[Jack G <jac...@gm...>]

Dear QuantLib Users,

I'm trying to install QuantLib-SWIG version 1.19 to add some additional
interfaces into the C++ QuantLib functionality for use in Python, using the
instructions here: https://www.quantlib.org/install/linux-python.shtml, and
facing two problems.

I'm developing inside a ubuntu docker container on a windows machine, and
built QuantLib from source in the Dockerfile (it causes my image to be
17GB, not sure if this is expected?). I'm quite experienced with Python but
not very experienced building C++.

First I tried to compile from the git repo, I cloned down a version and ran
./autogen.sh, followed by ./configure, which gives the following error:
[image: image.png]

If I instead download the binary here
https://bintray.com/quantlib/releases/download_file?file_path=QuantLib-SWIG-1.19.tar.gz
and unzip, I can successfully run the ./configure step (note that as far as
I can see, these two configure files are identical - compared via git).
However I run into some trouble a little later. When I first run "make -C
Python" or any step featuring "make", it tells me there is nothing to do.
I'm able to fix this with "make clean" and then "make -C Python", then I
have to "make clean" again but I get the following error again when I try
to run "sudo make -C Python install", which (I think) builds/links the C++
code but is saying it doesn't want to install the python:
[image: image.png]

Am I doing something obviously wrong? My preference would be to install
from the repo as I plan to test some code changes, but I'm not having much
luck with it. If I instead unpack the binaries (in which I can see the code
as text in .i files in the SWIG directory), modify the code, and then
build, will that see and compile my changes?

Thanks
Jack