ex3.7preserve : /usr/src/usr.bin/ex/ex3.7preserve/ex3.7preserve.c \
  /usr/include/sys/param.h /usr/include/sys/types.h \
  /usr/include/machine/endian.h /usr/include/sys/cdefs.h \
  /usr/include/machine/ansi.h /usr/include/machine/types.h \
  /usr/include/sys/syslimits.h /usr/include/sys/signal.h \
  /usr/include/machine/signal.h /usr/include/machine/trap.h \
  /usr/include/machine/param.h /usr/include/machine/psl.h \
  /usr/include/machine/limits.h /usr/include/sys/stat.h \
  /usr/include/sys/time.h /usr/include/time.h /usr/include/dirent.h \
  /usr/include/sys/dirent.h /usr/include/fcntl.h /usr/include/pwd.h \
  /usr/include/errno.h /usr/include/unistd.h /usr/include/sys/unistd.h \
  /usr/include/stdio.h /usr/include/ctype.h /usr/include/stdlib.h \
  /usr/include/string.h /usr/src/usr.bin/ex/ex3.7preserve/../pathnames.h \
  /usr/include/paths.h 
