Fix warning

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15226 a1c6a512-1295-4272-9138-f99709370657
diff --git a/bootloader/main-pp.c b/bootloader/main-pp.c
index 0262384d..acc916e 100644
--- a/bootloader/main-pp.c
+++ b/bootloader/main-pp.c
@@ -409,6 +409,8 @@
         block[0xe1] = 0;
         ata_write_sectors(IF_MV2(0,) pinfo->start + 0x3c08, 1, block);
     }
+#else
+    (void) disable_rebuild;
 #endif
 
     return EOK;