Error installing Blurilly gem on OSX 10.12.4 - ruby-on-rails

Question

When installing the blurrily gem, I get the following issue.
For reference I'm using:
rvm 1.29.1
ruby 2.1.7p400
rails 3.2.22.5
And I'm trying to install Blurrily 1.0.2.
The error:
/Users/jonkeenan/.rvm/rubies/ruby-2.1.7/bin/ruby -r ./siteconf20170525-
62993-1jexk35.rb extconf.rb
creating Makefile
current directory: /Users/jonkeenan/.rvm/gems/ruby-
2.1.7#introhive/gems/blurrily-1.0.2/ext/blurrily
make "DESTDIR=" clean
current directory: /Users/jonkeenan/.rvm/gems/ruby-
2.1.7#introhive/gems/blurrily-1.0.2/ext/blurrily
make "DESTDIR="
compiling map_ext.c
compiling search_tree.c
compiling storage.c
storage.c:283:43: error: taking address of packed member 'refs' of
class or structure 'trigram_map_t' may result in an unaligned pointer
value [-Werror,-Waddress-of-packed-member]
if (haystack->refs) blurrily_refs_free(&haystack->refs);
^~~~~~~~~~~~~~
storage.c:405:24: error: taking address of packed member 'refs' of
class or structure 'trigram_map_t' may result in an unaligned pointer
value [-Werror,-Waddress-of-packed-member]
blurrily_refs_new(&haystack->refs);
^~~~~~~~~~~~~~
2 errors generated.
make: *** [storage.o] Error 1
make failed, exit code 2
It looks like a c compile issue, but I'm not sure.
I'm running a version of xcode that's using Apple LLVM version 8.1.0 (clang-802.0.42) if that helps.

Answer 1

Unfortunately, it appears that this is a known issue that the gem maintainers have not yet addressed.
As a workaround, it might be worthwhile to switch to a Vagrant/Docker development workflow until this is addressed upstream.