quiet a warning on older zlib

diff --git a/plugins/sudoers/iolog.c b/plugins/sudoers/iolog.c
index d3a11ae2598bf2d7576edc16a2a2b9a9dd22b614..743ec6ed943370bd428e25e3389e6993715fb56a 100644 (file)
--- a/plugins/sudoers/iolog.c
+++ b/plugins/sudoers/iolog.c
@@ -809,7 +809,7 @@ iolog_write(const void *buf, unsigned int len, int idx)
 
 #ifdef HAVE_ZLIB_H
     if (iolog_compress) {
-       if (gzwrite(io_log_files[idx].fd.g, buf, len) != (int)len) {
+       if (gzwrite(io_log_files[idx].fd.g, (const voidp)buf, len) != (int)len) {
            errstr = gzstrerror(io_log_files[idx].fd.g);
            goto done;
        }