Add linux build

Author: segrax

.github/workflows/linux-build.yml

@@ -0,0 +1,17 @@
+name: linux-build
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install build tools
+        run: sudo apt-get update && sudo apt-get install -y cmake ninja-build build-essential
+      - name: Configure
+        run: cmake -S . -B build -G Ninja
+      - name: Build
+        run: cmake --build build

Source/Fodder.cpp

@@ -21,6 +21,7 @@
  */
 
 #include "stdafx.hpp"
+#include <cmath>
 #include "Map/Random.hpp"
 
 #ifdef WIN32

Source/Graphics.cpp

@@ -21,6 +21,7 @@
  */
 
 #include "stdafx.hpp"
+#include <cmath>
 
 cGraphics::cGraphics() {
 
@@ -110,4 +111,4 @@ void cGraphics::HeliIntro_TickParallaxAndText(double dtSeconds)
         Heli_Front -= d0;
         if (Heli_Front < 0) Heli_Front += wrap;
     }
-}
+}