Jörn Starruß

Fix rare use of undefined variable

3

Variable x2 was used undefined in case of polygons without y-extend. Defaulting x2 to zero works around this issue.

# What is this Python project? [pyABC](https://github.com/icb-dcm/pyabc) is a tool for distributed likelihood-free inference using Approximate Bayesian Computation. # What's the difference between this project and similar ones? * It...

### ⚠️ This issue respects the following points: ⚠️ - [X] This is a **bug**, not a question or a configuration/webserver/proxy issue. - [X] This issue is **not** already reported...

Adding a missing (sbml) library via cmake's [FetchContent](https://cmake.org/cmake/help/latest/module/etchContent.html#module:FetchContent) is a convenient choice, in particular since cmake v3.24 . In that case, some targets should be hidden (e.g. [**uninstall**](https://github.com/sbmlteam/libsbml/blob/d5705ae0ebde2df6d13e2e77cc50df87eee83ff7/CMakeLists.txt#L1168), **tests**, **examples**...