git-p4: add failing test for P4EDITOR handling

diff --git a/ewah/ewah_io.c b/ewah/ewah_io.c
index f7f700ef516eea2fe908f66b1518b5e3a1d9fd33..1c2d7afd4cb9b70a324d355c3d69b732b181012b 100644 (file)
--- a/ewah/ewah_io.c
+++ b/ewah/ewah_io.c
@@ -110,9 +110,9 @@ int ewah_serialize(struct ewah_bitmap *self, int fd)
        return ewah_serialize_to(self, write_helper, (void *)(intptr_t)fd);
 }
 
-int ewah_read_mmap(struct ewah_bitmap *self, void *map, size_t len)
+int ewah_read_mmap(struct ewah_bitmap *self, const void *map, size_t len)
 {
-       uint8_t *ptr = map;
+       const uint8_t *ptr = map;
        size_t i;
 
        self->bit_size = get_be32(ptr);