XGlk 0.4.11 patches for Linux
                     =============================

The xglk library sources (version 0411) do not build gracefully on
Linux. The supplied patch file fixes some fatal errors, some compiler 
warning and a grizzle from gcc about unsafe use of tmpnam(), when
linking the library.

The changes made were very simple:

1. xglk_loop.c and xglk_msg.c both call gettimeofday() with a dummy
   non-null second argument. Declarations of the argument fail. Since
   the argument is dummy, and the function happily accepts NULL for its
   second argument, the solution was to use NULL instead of &tz and to
   remove declarations of tz.

2. xglk_scrap.c and xg_style.c needed <string.h> to declare
   functions such as strlen(), strcpy(), strcmp() in the former and
   memcpy() in the latter.

3. xg_fileref.c used tmpnam() to construct a temporary name, and
   gcc grizzles about this being unsafe when linking the library into
   an executable. Cured by replacing tmpnam() with a call to 
   sprintf() using getpid() and getppid() to create a unique name. 
   (Let's not be *too* paranoic about NFS-mounts! :-)

                             Mike Arnautov, 18 Mar 2003