libcurl-tutorial: add casts in example to avoid compilation warnings.

diff --git a/docs/libcurl/libcurl-tutorial.3 b/docs/libcurl/libcurl-tutorial.3
index e939724248053e8959c429c826b190ee7090927f..187d5ca0fab251352be6f4389457d049641b4d73 100644 (file)
--- a/docs/libcurl/libcurl-tutorial.3
+++ b/docs/libcurl/libcurl-tutorial.3
@@ -523,7 +523,8 @@ multiple files posting is deprecated by RFC 7578, chapter 4.3.
 To set the data source from an already opened FILE pointer, use:
 
 .nf
- curl_mime_data_cb(part, filesize, fread, fseek, NULL, filepointer);
+ curl_mime_data_cb(part, filesize, (curl_read_callback) fread,
+                   (curl_seek_callback) fseek, NULL, filepointer);
 .fi
 
 A deprecated \fIcurl_formadd(3)\fP function is still supported in libcurl.