Packages: silence warnings

src/detection/packages/packages_windows.c

@@ -32,6 +32,8 @@ void ffDetectPackages(FFinstance* instance, FFPackageCounts* counts)
         //We have pacman and maybe others in MSYS, but not package managers for Windows
         if(getenv("MSYSTEM"))
             return ffDetectPackagesPosix(instance, counts);
+    #else
+        FF_UNUSED(instance);
     #endif
 
     FFstrbuf scoopPath;