[Master] go install / build error: undefined reference

[wohenbushuang]

1. Please describe the issue you observed:

   • What did you do (The steps to reproduce)?
     Follow the instruction, and

[root@centos7 app]# export LD_LIBRARY_PATH=/usr/local/lib/rocketmq-client-cpp/lib
[root@centos7 app]# export LIBRARY_PATH=$LIBRARY_PATH:$LD_LIBRARY_PATH
[root@centos7 app]# go get -d -v ./...
github.com/apache/rocketmq-client-go (download)
github.com/sirupsen/logrus (download)
[root@centos7 app]# go install -v ./...

- What did you see instead?

golang.org/x/sys/unix
github.com/sirupsen/logrus
github.com/apache/rocketmq-client-go/core
# github.com/apache/rocketmq-client-go/core
/tmp/go-build224635066/b031/_x006.o: In function `_cgo_a1c6eb49277c_Cfunc_CreateOrderlyProducer':
/tmp/go-build/cgo-gcc-prolog:52: undefined reference to `CreateOrderlyProducer'
/tmp/go-build224635066/b031/_x006.o: In function `_cgo_a1c6eb49277c_Cfunc_SendMessageOrderlyByShardingKey':
/tmp/go-build/cgo-gcc-prolog:175: undefined reference to `SendMessageOrderlyByShardingKey'
/tmp/go-build224635066/b031/_x008.o: In function `_cgo_a1c6eb49277c_Cfunc_SetPushConsumerMaxCacheMessageSize':
/tmp/go-build/cgo-gcc-prolog:215: undefined reference to `SetPushConsumerMaxCacheMessageSize'
/tmp/go-build224635066/b031/_x008.o: In function `_cgo_a1c6eb49277c_Cfunc_SetPushConsumerMaxCacheMessageSizeInMb':
/tmp/go-build/cgo-gcc-prolog:236: undefined reference to `SetPushConsumerMaxCacheMessageSizeInMb'
collect2: error: ld returned 1 exit status

2. Please tell us about your environment:

   • What is your OS?
     CentOS7.6
   • What is your client version?
     latest rocketmq-client-cpp-1.2.3-bin-release.tar.gz
   • What is your RocketMQ version?

3. Other information (e.g. detailed explanation, logs, related issues, suggestions on how to fix, etc):

[ShannonDing]

the new features for sending messages by sharding key and max cache size are merged in CPP by ISSUE-190 and ISSUE-188.
To use the latest feature in go master, you should build the CPP master code yourself by the build.sh script.