--- exercises/097_c_math.zig	2025-08-15 15:17:57.839348063 +0200
+++ answers/097_c_math.zig	2026-04-03 13:09:32.059278502 +0200
@@ -26,7 +26,7 @@
 
 const c = @cImport({
     // What do we need here?
-    ???
+    @cInclude("math.h");
 });
 
 pub fn main() !void {