Nokogiri: Build failed (v1.6.8.1)

[delef]

Using rake 11.3.0
Using concurrent-ruby 1.0.2
Using i18n 0.7.0
Using minitest 5.9.1
Using thread_safe 0.3.5
Using builder 3.2.2
Using erubis 2.7.0
Using mini_portile2 2.1.0
Using rack 2.0.1
Using nio4r 1.2.1
Using websocket-extensions 0.1.2
Using mime-types-data 3.2016.0521
Using arel 7.1.2
Using execjs 2.7.0
Using bcrypt 3.1.11
Using sass 3.4.22
Using bundler 1.13.1
Using byebug 9.0.6
Using debug_inspector 0.0.2
Using ffi 1.9.14
Using method_source 0.8.2
Using thor 0.19.1
Using multi_json 1.12.1
Using rb-fsevent 0.9.7
Using pg 0.19.0
Using puma 3.6.0
Using rails-assets-tether 1.3.7
Using tilt 2.0.5
Using turbolinks-source 5.0.0
Using will_paginate 3.1.3
Using tzinfo 1.2.2
Installing nokogiri 1.6.8.1 (was 1.6.8) with native extensions
Using rack-test 0.6.3
Using sprockets 3.7.0
Using websocket-driver 0.6.4
Using mime-types 3.1
Using autoprefixer-rails 6.5.0.2
Using uglifier 3.0.2
Using rb-inotify 0.9.7
Using turbolinks 5.0.1
Using will_paginate-bootstrap4 0.1.2
Using activesupport 5.0.0.1
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

current directory:
/Users/delef/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/nokogiri-1.6.8.1/ext/nokogiri
/Users/delef/.rbenv/versions/2.3.1/bin/ruby -r
./siteconf20161005-75587-1rpy72t.rb extconf.rb
checking if the C compiler accepts ... yes
checking if the C compiler accepts
-Wno-error=unused-command-line-argument-hard-error-in-future... no
Building nokogiri using packaged libraries.
Using mini_portile version 2.1.0
checking for iconv.h... yes
checking for gzdopen() in -lz... yes
checking for iconv... yes

---

IMPORTANT NOTICE:

Building Nokogiri with a packaged version of libxml2-2.9.4.

Team Nokogiri will keep on doing their best to provide security
updates in a timely manner, but if this is a concern for you and want
to use the system library instead; abort this installation process and
reinstall nokogiri as follows:

gem install nokogiri -- --use-system-libraries
    [--with-xml2-config=/path/to/xml2-config]
    [--with-xslt-config=/path/to/xslt-config]

If you are using Bundler, tell it to use the option:

bundle config build.nokogiri --use-system-libraries
bundle install

Note, however, that nokogiri is not fully compatible with arbitrary
versions of libxml2 provided by OS/package vendors.

---

Extracting libxml2-2.9.4.tar.gz into
tmp/x86_64-apple-darwin16.0.0/ports/libxml2/2.9.4... OK
Running 'configure' for libxml2 2.9.4... OK
Running 'compile' for libxml2 2.9.4... ERROR, review
'/Users/delef/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/nokogiri-1.6.8.1/ext/nokogiri/tmp/x86_64-apple-darwin16.0.0/ports/libxml2/2.9.4/compile.log'

to see what happened. Last lines are:

unsigned short* in = (unsigned short*) inb;
                     ^~~~~~~~~~~~~~~~~~~~~

encoding.c:815:27: warning: cast from 'unsigned char _' to 'unsigned short '
increases required alignment from 1 to 2 [-Wcast-align]
unsigned short_ out = (unsigned short_) outb;
^~~~~~
4 warnings generated.
CC error.lo
CC parserInternals.lo
CC parser.lo
CC tree.lo
CC hash.lo
CC list.lo
CC xmlIO.lo
xmlIO.c:1450:52: error: use of undeclared identifier 'LZMA_OK'
ret = (__libxml2_xzclose((xzFile) context) == LZMA_OK ) ? 0 : -1;
^
1 error generated.
make[2]: *_* [xmlIO.lo] Error 1
make[1]: ** [all-recursive] Error 1

make: *** [all] Error 2

* extconf.rb failed *
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers. Check the mkmf.log file for more details. You may
need configuration options.

Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/Users/delef/.rbenv/versions/2.3.1/bin/$(RUBY_BASE_NAME)
--help
--clean
--use-system-libraries
--enable-static
--disable-static
--with-zlib-dir
--without-zlib-dir
--with-zlib-include
--without-zlib-include=${zlib-dir}/include
--with-zlib-lib
--without-zlib-lib=${zlib-dir}/lib
--enable-cross-build
--disable-cross-build
/Users/delef/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/mini_portile2-2.1.0/lib/mini_portile2/mini_portile.rb:366:in
block in execute': Failed to complete compile task (RuntimeError) from /Users/delef/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/mini_portile2-2.1.0/lib/mini_portile2/mini_portile.rb:337:in chdir'
from
/Users/delef/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/mini_portile2-2.1.0/lib/mini_portile2/mini_portile.rb:337:in
execute' from /Users/delef/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/mini_portile2-2.1.0/lib/mini_portile2/mini_portile.rb:111:in compile'
from
/Users/delef/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/mini_portile2-2.1.0/lib/mini_portile2/mini_portile.rb:150:in
cook' from extconf.rb:365:inblock (2 levels) in process_recipe'
from extconf.rb:258:in block in chdir_for_build' from extconf.rb:257:inchdir'
from extconf.rb:257:in chdir_for_build' from extconf.rb:364:inblock in process_recipe'
from extconf.rb:263:in tap' from extconf.rb:263:inprocess_recipe'
from extconf.rb:556:in `

'

To see why this extension failed to compile, please check the mkmf.log which can
be found here:

/Users/delef/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/extensions/x86_64-darwin-16/2.3.0-static/nokogiri-1.6.8.1/mkmf.log

extconf failed, exit code 1

Gem files will remain installed in
/Users/delef/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/nokogiri-1.6.8.1 for
inspection.
Results logged to
/Users/delef/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/extensions/x86_64-darwin-16/2.3.0-static/nokogiri-1.6.8.1/gem_make.out

An error occurred while installing nokogiri (1.6.8.1), and Bundler
cannot continue.
Make sure that gem install nokogiri -v '1.6.8.1' succeeds before bundling.
MBP-Ivan-2:partner delef$ gem install nokogiri -v '1.6.8.1'
Building native extensions. This could take a while...
ERROR: Error installing nokogiri:
ERROR: Failed to build gem native extension.

current directory: /Users/delef/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/nokogiri-1.6.8.1/ext/nokogiri

/Users/delef/.rbenv/versions/2.3.1/bin/ruby -r ./siteconf20161005-79410-5pa0ep.rb extconf.rb
checking if the C compiler accepts ... yes
checking if the C compiler accepts -Wno-error=unused-command-line-argument-hard-error-in-future... no
Building nokogiri using packaged libraries.
Using mini_portile version 2.1.0
checking for iconv.h... yes
checking for gzdopen() in -lz... yes
checking for iconv... yes

---

IMPORTANT NOTICE:

Building Nokogiri with a packaged version of libxml2-2.9.4.

Team Nokogiri will keep on doing their best to provide security
updates in a timely manner, but if this is a concern for you and want
to use the system library instead; abort this installation process and
reinstall nokogiri as follows:

gem install nokogiri -- --use-system-libraries
    [--with-xml2-config=/path/to/xml2-config]
    [--with-xslt-config=/path/to/xslt-config]

If you are using Bundler, tell it to use the option:

bundle config build.nokogiri --use-system-libraries
bundle install

Note, however, that nokogiri is not fully compatible with arbitrary
versions of libxml2 provided by OS/package vendors.

---

Extracting libxml2-2.9.4.tar.gz into tmp/x86_64-apple-darwin16.0.0/ports/libxml2/2.9.4... OK
Running 'configure' for libxml2 2.9.4... OK

Running 'compile' for libxml2 2.9.4... ERROR, review '/Users/delef/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/nokogiri-1.6.8.1/ext/nokogiri/tmp/x86_64-apple-darwin16.0.0/ports/libxml2/2.9.4/compile.log' to see what happened. Last lines are:

unsigned short* in = (unsigned short*) inb;
                     ^~~~~~~~~~~~~~~~~~~~~

encoding.c:815:27: warning: cast from 'unsigned char _' to 'unsigned short ' increases required alignment from 1 to 2 [-Wcast-align]
unsigned short_ out = (unsigned short_) outb;
^~~~~~
4 warnings generated.
CC error.lo
CC parserInternals.lo
CC parser.lo
CC tree.lo
CC hash.lo
CC list.lo
CC xmlIO.lo
xmlIO.c:1450:52: error: use of undeclared identifier 'LZMA_OK'
ret = (__libxml2_xzclose((xzFile) context) == LZMA_OK ) ? 0 : -1;
^
1 error generated.
make[2]: *_* [xmlIO.lo] Error 1
make[1]: ** [all-recursive] Error 1

make: *** [all] Error 2

* extconf.rb failed *
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers. Check the mkmf.log file for more details. You may
need configuration options.

Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/Users/delef/.rbenv/versions/2.3.1/bin/$(RUBY_BASE_NAME)
--help
--clean
--use-system-libraries
--enable-static
--disable-static
--with-zlib-dir
--without-zlib-dir
--with-zlib-include
--without-zlib-include=${zlib-dir}/include
--with-zlib-lib
--without-zlib-lib=${zlib-dir}/lib
--enable-cross-build
--disable-cross-build
/Users/delef/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/mini_portile2-2.1.0/lib/mini_portile2/mini_portile.rb:366:in block in execute': Failed to complete compile task (RuntimeError) from /Users/delef/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/mini_portile2-2.1.0/lib/mini_portile2/mini_portile.rb:337:inchdir'
from /Users/delef/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/mini_portile2-2.1.0/lib/mini_portile2/mini_portile.rb:337:in execute' from /Users/delef/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/mini_portile2-2.1.0/lib/mini_portile2/mini_portile.rb:111:incompile'
from /Users/delef/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/mini_portile2-2.1.0/lib/mini_portile2/mini_portile.rb:150:in cook' from extconf.rb:365:inblock (2 levels) in process_recipe'
from extconf.rb:258:in block in chdir_for_build' from extconf.rb:257:inchdir'
from extconf.rb:257:in chdir_for_build' from extconf.rb:364:inblock in process_recipe'
from extconf.rb:263:in tap' from extconf.rb:263:inprocess_recipe'
from extconf.rb:556:in `

'

To see why this extension failed to compile, please check the mkmf.log which can be found here:

/Users/delef/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/extensions/x86_64-darwin-16/2.3.0-static/nokogiri-1.6.8.1/mkmf.log

extconf failed, exit code 1

Gem files will remain installed in /Users/delef/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/nokogiri-1.6.8.1 for inspection.
Results logged to /Users/delef/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/extensions/x86_64-darwin-16/2.3.0-static/nokogiri-1.6.8.1/gem_make.out

[denisw]

This is probably a duplicate of #1537, assuming you are using macOS. If that is the case, try (re)running

xcode-select --install

I guess the update to XCode 8 makes this necessary, but I don't know.