在 AIX 上编译rcs
时出现以下错误:
# ./configure
creating cache ./config.cache
checking diff basename... diff
checking for diff... /usr/bin/diff
checking diff success status... 0
checking diff failure status... 1
checking diff trouble status... 2
checking diff options for RCS... -n
checking diff -L... no
checking diff3 -m... no
checking diff3 library program... configure: error: cannot find a working diff3 library program