Fix to build as read-only module (there were unused variables left..)

diff --git a/src/battery.c b/src/battery.c
index d467ecc..21b19bb 100644 (file)
--- a/src/battery.c
+++ b/src/battery.c
@@ -60,8 +60,10 @@ static char *ds_def_charge[] =
 };
 static int ds_num_charge = 1;
 
+#if BATTERY_HAVE_READ
 static int   battery_pmu_num = 0;
 static char *battery_pmu_file = "/proc/pmu/battery_%i";
+#endif
 
 static void battery_init (void)
 {