$ export CFLAGS="-march=i486 -mtune=i686 -Os -pipe"
$ export CXXFLAGS="-march=i486 -mtune=i686 -Os -pipe -fno-exceptions -fno-rtti"
$ export PKG_CONFIG_PATH=/usr/lib/pkgconfig:/usr/local/lib/pkgconfig

load perl5, perl_gettext and gettext extensions

help2man-1.38.2
---------------

$ ./configure --prefix=/usr/local
$ make
$ make install