formdata patch for 32 bit

form.patch

diff --git a/lib/formdata.c b/lib/formdata.c
index 8984b6322..11b6f1687 100644
--- a/lib/formdata.c
+++ b/lib/formdata.c
@@ -787,10 +787,15 @@ static CURLcode setname(curl_mimepart *part, const char *name, size_t len)
   res = curl_mime_name(part, zname);
   free(zname);
   return res;
 }
 
+static int fake_fseek(FILE *stream, curl_off_t offset, int whence)
+{
+  return fseek(stream, (long)offset, whence);
+}
+
 /*
  * Curl_getformdata() converts a linked list of "meta data" into a mime
  * structure. The input list is in 'post', while the output is stored in
  * mime part at '*finalform'.
  *
@@ -873,11 +878,11 @@ CURLcode Curl_getformdata(struct Curl_easy *data,
                to result as expected. This feature has been kept for backward
                compatibility: use of "-" pseudo file name should be avoided. */
             result = curl_mime_data_cb(part, (curl_off_t) -1,
                                        (curl_read_callback) fread,
                                        CURLX_FUNCTION_CAST(curl_seek_callback,
-                                                           fseek),
+                                                           fake_fseek),
                                        NULL, (void *) stdin);
           }
           else
             result = curl_mime_filedata(part, file->contents);
           if(!result && (post->flags & HTTPPOST_READFILE))