Install pkg-config

Author: ladvoc

.github/workflows/builds.yml

@@ -81,7 +81,7 @@ jobs:
         run: |
           sudo apt update -y
           # libasound2-dev is needed for local_audio example
-          sudo apt install -y libasound2-dev libssl-dev libx11-dev libgl1-mesa-dev libxext-dev
+          sudo apt install -y libasound2-dev pkg-config libssl-dev libx11-dev libgl1-mesa-dev libxext-dev
 
       - name: Install VA-API/NVIDIA drivers for linux x64 build
         if: ${{ matrix.os == 'ubuntu-latest'}}