error compiling in osx sierra

[javier-martinez-palmer]

I got an error just following the tutorial. The log ends like this:

checking for NETTLE... configure: error:

---

*** Libnettle 3.1 was not found.

libgnutls: Command failed with exit code 1: ./configure --prefix=/Users/javier.martinez/Desktop/relocatable-python-develop/dist --disable-rpath --disable-silent-rules -without-p11-kit
libgnutls: Compilation error. The package is left as is at /Users/javier.martinez/Desktop/relocatable-python-develop/parts/libgnutls__compile__/gnutls-3.4.15 where you can inspect what went wrong
While:
Installing libgnutls.
Error: System error

I checked the folder mentioned in the log to look for details but there are a lot of files. I dont know where to look at.
Can you help me please?

[wiggin15]

Can you please upload the full output (preferably to a gist) and also the outputs of gcc -v and sw_vers?