been trying to install it on my laptop (which is using el capitan i believe), get stuck at this point:

JohnCurransMBP:~ John$ rbenv install 2.2.5
Downloading ruby-2.2.5.tar.bz2...
-> https://cache.ruby-lang.org/pub/ruby...-2.2.5.tar.bz2
Installing ruby-2.2.5...

BUILD FAILED (OS X 10.11 using ruby-build 20160602)

Inspect or clean up the working tree at /var/folders/fj/wztw08615dq7tnstv6gy2b0h0000gn/T/ruby-build.20160907213318.84555
Results logged to /var/folders/fj/wztw08615dq7tnstv6gy2b0h0000gn/T/ruby-build.20160907213318.84555.log

Last 10 log lines:
#define numberof(ary) (int)(sizeof(ary)/sizeof((ary)[0]))
^~~~~
5 warnings and 9 errors generated.
make[2]: *** [ossl_ssl.o] Error 1
make[1]: *** [ext/openssl/all] Error 2
make[1]: *** Waiting for unfinished jobs....
compiling ../.././ext/psych/yaml/writer.c
installing default psych libraries
linking shared-object psych.bundle
make: *** [build-ext] Error 2