Package load fails on OS X 10.11 despite openssl fix

[bsmoliak]

I'm having trouble installing git2r from master in spite of the openssl fix in #162. In the loading test, _git_buf__initbuf cannot be found.

** testing if installed package can be loaded
Error in dyn.load(file, DLLpath = DLLpath, ...) : 
  unable to load shared object '/usr/local/lib/R/3.3/site-library/git2r/libs/git2r.so':
  dlopen(/usr/local/lib/R/3.3/site-library/git2r/libs/git2r.so, 6): Symbol not found: _git_buf__initbuf
  Referenced from: /usr/local/lib/R/3.3/site-library/git2r/libs/git2r.so
  Expected in: flat namespace
 in /usr/local/lib/R/3.3/site-library/git2r/libs/git2r.so

My system is configured with brew-installed versions of openssl, libssh2, and R. A gist containing the results of brew config, brew doctor, and make install can be found here: https://gist.github.com/bsmoliak/75c4cf9447bf9b14bc5d202f81000ec2

[clarkfitzg]

@bsmoliak I ran into the same issue today when using a homebrew installation of R. I downloaded the latest version of R from CRAN and now it works fine, installed as a dependency of devtools.

> install.packages('devtools')
> library(devtools)
> library(git2r)

Here's the error message for reference, looks a little different:

*** installing help indices
** building package indices
** testing if installed package can be loaded
Error in dyn.load(file, DLLpath = DLLpath, ...) : 
  unable to load shared object '/usr/local/lib/R/3.3/site-library/git2r/libs/git2r.so':
  dlopen(/usr/local/lib/R/3.3/site-library/git2r/libs/git2r.so, 6): Library not loaded: libz.1.dylib
  Referenced from: /usr/local/lib/R/3.3/site-library/git2r/libs/git2r.so
  Reason: image not found
Error: loading failed
Execution halted
ERROR: loading failed
* removing ‘/usr/local/lib/R/3.3/site-library/git2r’

[bsmoliak]

@clarkfitzg For the record, I am now getting the same error message as you posted when I try to install the package from source.

I was able to install git2r as a binary from CRAN, install.packages('git2r', type='mac.binary.mavericks'). Any reason that I shouldn't use that as a workaround?

[clarkfitzg]

Seems fine to me.