| @技術/プログラミング
シェルの履歴から適当に拾ってCONFIGURE_OPTS="--with-readline-dir=`brew --prefix readline` --with-openssl-dir=`br...

シェルの履歴から適当に拾って

CONFIGURE_OPTS="--with-readline-dir=`brew --prefix readline` --with-openssl-dir=`brew --prefix openssl` --with-gcc=clang" rbenv install 2.1.2

とやったら nokogiri のインストールでこけた。

gem install nokogiri
Building native extensions.  This could take a while...
Building nokogiri using packaged libraries.
ERROR:  Error installing nokogiri:
        ERROR: Failed to build gem native extension.

    /Users/morygonzalez/.rbenv/versions/2.1.2/bin/ruby extconf.rb
Building nokogiri using packaged libraries.
checking for iconv.h... yes
checking for iconv_open() in iconv.h... no
checking for iconv_open() in -liconv... no
checking for libiconv_open() in iconv.h... no
checking for libiconv_open() in -liconv... no
-----
libiconv is missing.  please visit http://nokogiri.org/tutorials/installing_nokogiri.html for help with installing dependencies.
-----
*** 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/morygonzalez/.rbenv/versions/2.1.2/bin/ruby
        --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

extconf failed, exit code 1

Gem files will remain installed in /Users/morygonzalez/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/gems/nokogiri-1.6.2.1 for inspection.
Results logged to /Users/morygonzalez/.rbenv/versions/2.1.2/lib/ruby/gems/2.1.0/extensions/x86_64-darwin-13/2.1.0-static/nokogiri-1.6.2.1/gem_make.out

Installing REE with rbenv with iconv support and Homebrew — eddorre という記事を参考に、 --with-iconv-dir オプションをつけて Ruby インストールしたらうまくいった。

CONFIGURE_OPTS="--with-readline-dir=`brew --prefix readline` --with-openssl-dir=`brew --prefix openssl` --with-iconv-dir=`brew --prefix libiconv` --with-gcc=clang" rbenv install 2.1.2

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