fix linux builds

src/modules/arena.c

@@ -61,6 +61,7 @@ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 #include <assert.h>
 #include <stdlib.h>
 #include <string.h>
+#include <limits.h>
 
 /* exports: */
 plane *arena = NULL;

src/modules/score.c

@@ -208,7 +208,7 @@ void score(void)
                     }
                 }
 
-                fprintf(scoreFP, "%d:%d:%d:%d", a->id, alliance_factions,
+                fprintf(scoreFP, "%d:%d:%d:%lld", a->id, alliance_factions,
                     alliance_number, alliance_score);
                 if (token != NULL)
                     fprintf(scoreFP, ":%d", grails);