Build gozk in OSX El capitan and something about Go/C interactions
Build gozk in OSX El capitan and something abount Go/C interactions
Gozk is a nice golang zookeeper client by call zookeeper raw C client — libzookeeper. Current document for gozk was about how to install on linux by goinstall..
There are some problem in OSX, but we still want to use them in local developement.
Now we will talk something to install on new OSX and using raw go get
Install libzookeeper
In OSX El capitan, try install gozk by go get will meet error
go get launchpad.net/gozk
It will stop by this error…
launchpad.net/gozk/zk.go:15:10: fatal error: ‘zookeeper.h’ file not found
#include <zookeeper.h>
^
1 error generated.
As above said…gozk is base on libzookeeper…
so we will install zookeeper first, there are many advise to use brew
brew install zookeeper
but…this’s can’t work on newest OSX..
Warning: You are using OS X 10.11.
We do not provide support for this pre-release version.
You may encounter build failures or other breakage.
==> Downloading https://www.apache.org/dyn/closer.cgi?path=zookeeper/zookeeper-3.4.6/zookeeper-3.4.6.tar.gz
Already downloaded: /Library/Caches/Homebrew/zookeeper-3.4.6.tar.gz
==> ./configure — prefix=/usr/local/Cellar/zookeeper/3.4.6_1 — without-cppunit
==> make install
2 errors generated.
make: *** [recordio.lo] Error 1
make: *** [zookeeper.jute.lo] Error 1
2 errors generated.
make: *** [zookeeper.lo] Error 1
READ THIS: https://git.io/brew-troubleshooting
Warning: You are using OS X 10.11.
We do not provide support for this pre-release version.
You may encounter build failures or other breakage.
because there is a BUG for zookeeper, so we need get 3.5.1+ zookeeper source, and build them by ourself
cd zookeeper-3.5.1-alpha/src/c
./configure — prefix=/usr/local — without-cppunit
make
make install
Make gozk use our libzookeeper
As default gozk will use self makefile as build tool..
but it’s not frendly to go get so we need do some modification and let gozk.go include and link our libzookeeper
vi $GOPATH/src/launchpad.net/gozk/zk.go
and make
#cgo CFLAGS: -I/usr/include/c-client-src -I/usr/include/zookeeper
to
#cgo CFLAGS: -I/usr/include/c-client-src -I/usr/include/zookeeper -I/usr/local/include/zookeeper
then make
#cgo LDFLAGS: -lzookeeper_mt
to
#cgo LDFLAGS: /usr/local/lib/libzookeeper_mt.a
at last, retry go get
go get launchpad.net/gozk
it’s will done..
Detail
#cgo XXX before import “C” is directive for cgo to tweek Go/C interactions
- CFLAGS: -Ipath/to/dir will lead cgo to find C-header file in special folders
- LDFLAGS: path/to/lib will let cgo which lib need to be link
