Updated Eigen version to unofficial patched version 3.4.1 to better s…

…upport C++20

CHANGELOG.md

@@ -2,8 +2,8 @@
 * Updated to be compatible with Unreal 5.4.2. 
     * Note that 5.4.2 requires _r.DetailMode 2_ console command or scalability settings to be set to Epic to avoid issues with rendering the RGB scene camera sensor. More info [here]((docs/unreal_custenv.md#unreal-5354-scene-camera-bug)).
     * Disabled treating warnings as errors on Windows to avoid build issues.
-    * Updated rpclib version to unofficial patched version 2.3.1 to support C++20.
-    * Updated Eigen version to 3.4.0 on Windows to support C++20.
+    * Updated rpclib version to unofficial patched version 2.3.1 to better support C++20.
+    * Updated Eigen version to unofficial patched version 3.4.1 to better support C++20.
     * Updated cpp-linenoise library of DroneShell to support C++20.
     * Updated json library to 3.11.3 to support C++20.
     * Updated airlib to use C++20.

build.cmd

@@ -165,9 +165,9 @@ REM //---------- get Eigen library ----------
 IF NOT EXIST AirLib\deps mkdir AirLib\deps
 IF NOT EXIST AirLib\deps\eigen3 (
     if "%PWSHV7%" == "" (
-        %powershell% -command "& { [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; iwr https://gitlab.com/libeigen/eigen/-/archive/3.4.0/eigen-3.4.0.zip -OutFile eigen3.zip }"
+        %powershell% -command "& { [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; iwr https://github.com/WouterJansen/eigen/archive/refs/tags/3.4.1.zip -OutFile eigen3.zip }"
     ) else (
-        %powershell% -command "iwr https://gitlab.com/libeigen/eigen/-/archive/3.4.0/eigen-3.4.0.zip -OutFile eigen3.zip"
+        %powershell% -command "iwr https://github.com/WouterJansen/eigen/archive/refs/tags/3.4.1.zip -OutFile eigen3.zip"
     )
     %powershell% -command "Expand-Archive -Path eigen3.zip -DestinationPath AirLib\deps"
     %powershell% -command "Move-Item -Path AirLib\deps\eigen* -Destination AirLib\deps\del_eigen"

setup.sh

@@ -174,7 +174,7 @@ echo "Installing Eigen library..."
 
 if [ ! -d "AirLib/deps/eigen3" ]; then
     echo "Downloading Eigen..."
-    wget -O eigen3.zip https://gitlab.com/libeigen/eigen/-/archive/3.4.0/eigen-3.4.0.zip
+    wget -O eigen3.zip https://github.com/WouterJansen/eigen/archive/refs/tags/3.4.1.zip
     unzip -q eigen3.zip -d temp_eigen
     mkdir -p AirLib/deps/eigen3
     mv temp_eigen/eigen*/Eigen AirLib/deps/eigen3