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-rw-r--r--sha1_file.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sha1_file.c b/sha1_file.c
index e9285c144..8d189d491 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -1388,7 +1388,7 @@ int write_sha1_from_fd(const unsigned char *sha1, int fd, char *buffer,
ssize_t size;
if (*bufposn) {
stream.avail_in = *bufposn;
- stream.next_in = buffer;
+ stream.next_in = (unsigned char *) buffer;
do {
stream.next_out = discard;
stream.avail_out = sizeof(discard);