B138: Fixed OS X Bison call problem.

[supertux.git] / mk / jam / macosx.jam

diff --git a/mk/jam/macosx.jam b/mk/jam/macosx.jam
index 08a6044..832fb09 100644 (file)
--- a/mk/jam/macosx.jam
+++ b/mk/jam/macosx.jam
@@ -89,6 +89,6 @@ if $(BISON)
   actions Bison
   {
     $(BISON) -d $(BISON_FLAGS) -o $(<[1]) $(>)
-    if exist $(<[1]).h $(MV) $(<[1]).h $(<[2])
+    test -f $(<[1]).h && $(MV) $(<[1]).h $(<[2])
   }
 }