How to install Citrus i18n module (for OpenBSD)

1. update source tree via cvs
# cd /usr/src && cvs update -dP -D 20091231

2. apply the patch
# patch -p1 -E -l -d /usr/src < citrus.patch

3. clean objdir
# rm -rf /usr/obj/*

4. update /usr/bin/make
# cd /usr/src/usr.bin/make && make obj depend all
# make install

5. update /usr/share/mk/bsd.*.mk files
# cd /usr/src/share/mk && make install

6. symlink objdir and create directory
# cd /usr/src && make obj
# cd /usr/src/etc && DESTDIR=/ make distrib-dirs

7. update /usr/include/* files
# cd /usr/src && make includes

8. update /usr/lib/libc.*
# cd /usr/lib
# cp libc.so.${major}.${minor} libc.so.${major}.${minor}.orig
# cd /usr/src/lib/libc && make depend all
# make install

9. install /usr/bin/mklocale
# cd /usr/src/usr.bin/mklocale && make depend all
# make install

10. install /usr/bin/mkcsmapper
# cd /usr/src/usr.bin/mkcsmapper && make depend all
# make install

11. install /usr/bin/mkesdb
# cd /usr/src/usr.bin/mkesdb && make depend all
# make install

12. rebuild entire systems
# cd /usr/src && make build

that's all, have fun.