This is a patched version of xdvi-17 + miyu-patch for System V Rel.4 machines to improve performance. SVR4's fseek function flushes the stream buffer unconditionally. This causes a great performance problem when xdvi acceses font glyphs. The patched version uses wrapper routines defined in xxstdio.c of the system's standard I/O to get rid of redundant buffer flushes. July 5, 1994 Hiroshi Nakano Ryukoku Univ., Seta, Otsu, Japan