From 96653029cfbb6b752aae9f68a4eed7c83272a404 Mon Sep 17 00:00:00 2001
From: Thomas Krijnen <t.krijnen@gmail.com>
Date: Sun, 9 Aug 2026 10:49:49 +0200
Subject: [PATCH] Upgrade standalone CI to SWIG 4.2.1

Generated with the assistance of an AI coding tool.
---
 .github/workflows/ci-ifcwrap-standalone.yml | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci-ifcwrap-standalone.yml b/.github/workflows/ci-ifcwrap-standalone.yml
index b3e070f26c..888b8f3e72 100644
--- a/.github/workflows/ci-ifcwrap-standalone.yml
+++ b/.github/workflows/ci-ifcwrap-standalone.yml
@@ -43,6 +43,7 @@ jobs:
           sudo apt update
           sudo apt-get install --no-install-recommends -y \
             cmake \
+            bison \
             gcc \
             g++ \
             libboost-date-time-dev \
@@ -61,13 +62,22 @@ jobs:
             libocct-ocaf-dev \
             libocct-visualization-dev \
             libpcre3-dev \
+            libpcre2-dev \
             libtbb-dev \
             libxml2-dev \
             libxi-dev \
             occt-misc \
             tcl-dev \
-            tk-dev \
-            swig
+            tk-dev
+
+      - name: Build SWIG
+        run: |
+          sudo apt-get remove --purge -y swig swig4.0
+          git clone https://github.com/swig/swig --branch v4.2.1 --depth 1
+          cmake -S swig -B swig/build -DCMAKE_BUILD_TYPE=Release
+          cmake --build swig/build -j "$(nproc)"
+          sudo cmake --install swig/build
+          swig -version
 
       - name: Configure minimal IfcOpenShell
         run: |