基因https://github.com/Eonblast/Emysql修复编译bug
(1） Compiling _build/default/lib/emysql/src/emysql_app.erl failed _build/default/lib/emysql/include/emysql.hrl:38: type gb_tree() undefined _build/default/lib/emysql/include/emysql.hrl:39: type queue() undefined
解决：
找到emysql/include/emysql.hrl 38：修改如下
available=queue:new() ,%:: queue(),
locked=gb_trees:empty() ,%:: gb_tree(),
waiting=queue:new() ,%:: queue(),
(2)emysql/src/emysql_conn_mgr.erl:43: type dict() undefined 解决如下： %-record(state, {pools, lockers = dict:new() :: dict()}).
-record(state, {pools, lockers = dict:new()}).
(3)emysql/src/emysql.erl:672: type dict() undefined 解决如下：
% -spec as_dict(Result) -> Dict % when % Result :: #result_packet{}, % Dict :: dict().
as_dict(Res) -> emysql_conv:as_dict(Res).
(4) 两个关于时间的warming,原因新的otp已经换了时间函数 emysql/src/emysql_conn_mgr.erl:422: Warning: erlang:now/0: Deprecated BIF. See the "Time and Time Correction in Erlang" chapter of the ERTS User's Guide for more information. /emysql/src/emysql_conn.erl:337: Warning: erlang:now/0: Deprecated BIF. See the "Time and Time Correction in Erlang" chapter of the ERTS User's Guide for more information.
erlang:now 改 erlang:timestamp()
忽略： no changes needed to "include/crypto_compat.hrl". Skipping writing new file