setup.sh: Fix package dependencies for ubuntu-20.04, 22.04 and 24.04.

Signed-off-by: Elvis Dowson <elvis.dowson@gmail.com>

Author: edowson

setup.sh

@@ -48,7 +48,26 @@ else #linux
     #     wget -O - http://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
     #     sudo apt-get update
     # fi
-    sudo apt-get install -y clang-12 clang++-12 libc++-12-dev libc++abi-12-dev libstdc++-12-dev
+    if [ "$VERSION" -eq "20" ]; then
+        sudo add-apt-repository ppa:ubuntu-toolchain-r/test
+        sudo apt update
+        sudo apt-get install -y build-essential cmake clang clang-12 clang++-12 libc++-12-dev libc++abi-12-dev libstdc++-13-dev
+
+        # configure update-alternatives for clang
+        sudo update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-12 1000
+        sudo update-alternatives --install /usr/bin/clang   clang   /usr/bin/clang-12   1000
+        sudo update-alternatives --install /usr/bin/ld.lld  ld.lld  /usr/bin/ld.lld-12  1000
+        sudo update-alternatives --install /usr/bin/cc      cc      /usr/bin/clang++-12 1000
+    fi
+    if [ "$VERSION" -eq "22" ]; then
+        sudo add-apt-repository ppa:ubuntu-toolchain-r/test
+        sudo apt update
+        sudo apt-get install -y build-essential cmake clang clang-14 clang++-14 libc++-14-dev libc++abi-14-dev libstdc++-13-dev
+    fi
+    if [ "$VERSION" -eq "24" ]; then
+        sudo apt-get install -y build-essential cmake clang clang-18 clang++-18 libc++-18-dev libc++abi-18-dev libstdc++-13-dev
+    fi
+
 fi
 
 if ! which cmake; then
@@ -86,7 +105,7 @@ else #linux
     fi
 
     # install additional tools
-    sudo apt-get install -y build-essential unzip libunwind-dev
+    sudo apt-get install -y unzip
 
     if version_less_than_equal_to $cmake_ver $MIN_CMAKE_VERSION; then
         # in ubuntu 18 docker CI, avoid building cmake from scratch to save time
@@ -190,4 +209,4 @@ set +x
 echo ""
 echo "******************************************"
 echo "Cosys-AirSim setup completed successfully!"
-echo "******************************************"
+echo "******************************************"