databases/mariadb55-client and readline

[Emmanuel Dreyfus <manu%netbsd.org@localhost>]

Hello

This is databases/mariadb55-client from pkgsrc-2018Q1 on NetBSD-7.1.2/i386

[ 88%] Building CXX object client/CMakeFiles/mysql.dir/mysql.cc.o
/usr/pkgsrc/databases/mariadb55-client/work/mariadb-5.5.57/client/mysql.cc: In f
unction 'void initialize_readline(char*)':
/usr/pkgsrc/databases/mariadb55-client/work/mariadb-5.5.57/client/mysql.cc:2646:
38: error: 'rl_completion_func_t' was not declared in this scope
   rl_attempted_completion_function= (rl_completion_func_t*)&new_mysql_completio
n;

I understand rl_completion_func_t should come from 
/usr/pkg/include/readline/readline.h
and the offending file actually has #include <readline/readline.h>
but /usr/include/readline/readline.h is used instead, which does
not contain rl_completion_func_t

Any hint on how this should be fixed?

-- 
Emmanuel Dreyfus
manu%netbsd.org@localhost