makedepend assumes that the source file has a one character suffix, for
example '.c'.
This enhancement instead assumes that the suffix is everything after the
last '.' in the source file name. This allows files to have a suffix such
as '.cpp'.

Here is a patch that works against XFree86-4.0.1-1 and XFree86-4.0.2-1.
I apply this patch to XFree86-4.0.2-1 as 'Patch20' with '%patch20 -p1 -b
.makedepend'.

*** XFree86-4.0/xc/config/util/mdepend.cpp.orig Mon Apr 17 09:27:09 2000
--- XFree86-4.0/xc/config/util/mdepend.cpp      Mon Apr 17 12:11:17 2000
***************
*** 174,180 ****


            {
!           ofile = substr ($1, 1, length ($1) - 2) "'"$objsuffix"'"
            print ofile, $4
            }
        }'   | sort -u   | awk '
--- 174,185 ----


            {
!             ofile = "";
!             na = split($1, a, ".");
!             ofile = a[1];
!             for (i=2; i<na; i++)
!               ofile = ofile "." a[i];
!           ofile = ofile "'"$objsuffix"'"
            print ofile, $4
            }
        }'   | sort -u   | awk '