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Diffstat (limited to 'ewah')
-rw-r--r--ewah/ewah_io.c4
-rw-r--r--ewah/ewok.h6
2 files changed, 5 insertions, 5 deletions
diff --git a/ewah/ewah_io.c b/ewah/ewah_io.c
index f7f700ef51..1c2d7afd4c 100644
--- 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);
diff --git a/ewah/ewok.h b/ewah/ewok.h
index 43adeb5c68..13c6e20412 100644
--- a/ewah/ewok.h
+++ b/ewah/ewok.h
@@ -47,7 +47,8 @@ static inline uint32_t ewah_bit_popcount64(uint64_t x)
return (x * 0x0101010101010101ULL) >> 56;
}
-#ifdef __GNUC__
+/* __builtin_ctzll was not available until 3.4.0 */
+#if defined(__GNUC__) && (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR > 3))
#define ewah_bit_ctz64(x) __builtin_ctzll(x)
#else
static inline int ewah_bit_ctz64(uint64_t x)
@@ -99,8 +100,7 @@ int ewah_serialize(struct ewah_bitmap *self, int fd);
int ewah_serialize_native(struct ewah_bitmap *self, int fd);
int ewah_deserialize(struct ewah_bitmap *self, int fd);
-int ewah_read_mmap(struct ewah_bitmap *self, void *map, size_t len);
-int ewah_read_mmap_native(struct ewah_bitmap *self, void *map, size_t len);
+int ewah_read_mmap(struct ewah_bitmap *self, const void *map, size_t len);
uint32_t ewah_checksum(struct ewah_bitmap *self);