Move site configuration section, i.e. --with-PACKAGE[=ARG] and
--without-PACKAGE, --enable-FEATURE[=ARG] and --disable-FEATURE
options to the beginning of configure.ac file, just after definitions
of macros.
Signed-off-by: NJakub Narebski <jnareb@gmail.com>
Signed-off-by: NJunio C Hamano <junkio@cox.net>