brew-ruby-stderr.txt

readline.c:1499:9: error: use of undeclared identifier 'username_completion_function'; did you mean
      'rl_username_completion_function'?
                                    rl_username_completion_function);
                                    ^
readline.c:69:42: note: expanded from macro 'rl_username_completion_function'
# define rl_username_completion_function username_completion_function
                                         ^
/usr/local/Cellar/readline/6.2.2/include/readline/readline.h:449:14: note: 'rl_username_completion_function' declared
      here
extern char *rl_username_completion_function PARAMS((const char *, int));
             ^
1 error generated.
make[2]: *** [readline.o] Error 1
make[1]: *** [ext/readline/all] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [build-ext] Error 2