imap-send: build imap-send on Windows

diff --git a/base85.c b/base85.c
index b88270f90844095b3d352cc4213cbebd95a7f420..b417a15bbc83fff7180078a4cf9f73603477a295 100644 (file)
--- a/base85.c
+++ b/base85.c
@@ -91,7 +91,7 @@ void encode_85(char *buf, const unsigned char *data, int bytes)
                unsigned acc = 0;
                int cnt;
                for (cnt = 24; cnt >= 0; cnt -= 8) {
-                       int ch = *data++;
+                       unsigned ch = *data++;
                        acc |= ch << cnt;
                        if (--bytes == 0)
                                break;