Analyse following RPM build log snippet. Describe contents accurately, without speculation or suggestions for resolution.            
Your analysis must be as concise as possible, while keeping relevant information intact.
Snippet: 
flist.c:2787:55: error: passing argument 4 of ‘qsort’ from incompatible pointer type [-Wincompatible-pointer-types]
 2787 |                       sizeof the_fattr_list.files[0], (int (*)())fattr_compare);
      |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~
      |                                                       |
      |                                                       int (*)(void)
In file included from rsync.h:330:
Description of a compilation error.