Still Working?

[sergimartnez]

gem install ruby_postal -v '1.0.0'
Building native extensions. This could take a while...
ERROR: Error installing ruby_postal:
ERROR: Failed to build gem native extension.

current directory: /Users/Sergio/.rvm/gems/ruby-2.3.0/gems/ruby_postal-1.0.0/ext/expand

/Users/Sergio/.rvm/rubies/ruby-2.3.0/bin/ruby -r ./siteconf20180607-4024-1yofs34.rb extconf.rb
creating Makefile

current directory: /Users/Sergio/.rvm/gems/ruby-2.3.0/gems/ruby_postal-1.0.0/ext/expand
make "DESTDIR=" clean

current directory: /Users/Sergio/.rvm/gems/ruby-2.3.0/gems/ruby_postal-1.0.0/ext/expand
make "DESTDIR="
compiling expand.c
expand.c:1:10: fatal error: 'libpostal/libpostal.h' file not found
#include <libpostal/libpostal.h>
^
1 error generated.
make: *** [expand.o] Error 1

make failed, exit code 2

Gem files will remain installed in /Users/Sergio/.rvm/gems/ruby-2.3.0/gems/ruby_postal-1.0.0 for inspection.
Results logged to /Users/Sergio/.rvm/gems/ruby-2.3.0/extensions/x86_64-darwin-15/2.3.0/ruby_postal-1.0.0/gem_make.out

[jesseclark]

Did you install the libpostal C library first?
https://github.com/openvenues/libpostal

[opensourceame]

I had this issue, I forgot to run make install after compiling libpostal. Hope this helps someone else.