--- libs/locale/build/Jamfile.v2.orig	2019-04-09 21:35:54.000000000 +0200
+++ libs/locale/build/Jamfile.v2	2020-06-30 14:42:39.602417000 +0200
@@ -352,6 +352,7 @@
         if <target-os>linux in $(properties) 
             || <target-os>darwin in $(properties) 
             || ( <target-os>freebsd in $(properties) && [ configure.builds has_xlocale : $(properties) : "xlocale supported" ] )
+            || ( <target-os>bsdsunix in $(properties) && [ configure.builds has_xlocale : $(properties) : "xlocale supported" ] )
         {
             properties += <boost.locale.posix>on ;
         }