i can not make aegisub from port

[contact by ThaiBB]

this some error message

checking for boostlib >= 1.50.0... yes
checking whether the Boost::ASIO library is available... yes
checking whether the Boost::Chrono library is available... yes
checking for exit in -lboost_chrono... yes
checking whether the Boost::Filesystem library is available... yes
checking for exit in -lboost_filesystem... yes
checking whether the Boost::Locale library is available... yes
checking for exit in -lboost_locale... no
checking for exit in -lboost_locale... (cached) no
checking for exit in -lboost_locale... (cached) no
checking for exit in -lboost_locale... (cached) no
configure: error: Could not link against boost_locale !
===>  Script "configure" failed unexpectedly.
Please report the problem to ports at FreeBSD.org [maintainer] and attach the
"/usr/ports/multimedia/aegisub/work/aegisub-3.1.3/config.log" including the
output of the failure of your make command. Also, it might be a good idea to
provide an overview of all packages installed on your system (e.g. a
/usr/local/sbin/pkg-static info -g -Ea).
*** Error code 1

Stop.
make[1]: stopped in /usr/ports/multimedia/aegisub
*** Error code 1

Stop.
make: stopped in /usr/ports/multimedia/aegisub

and config.log in attachment
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