在Ubuntu上安裝mysql2 gem時出錯16.04LTS

Question

我試過sudo gem安裝mysql2 -v'0.4.4'，出現錯誤。檢查/var/lib/gems/2.3.0/extensions/x86_64-linux/2.3.0/mysql2-0.4.4/mkmf.log：

"gcc -o conftest -I/usr/include/x86_64-linux-gnu/ruby-2.3.0 -I/usr/include/ruby-2.3.0/ruby/backward -I/usr/include/ruby-2.3.0 -I. -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -fPIC conftest.c -L. -L/usr/lib/x86_64-linux-gnu -L. -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-z,now -fstack-protector -rdynamic -Wl,-export-dynamic  -lruby-2.3 -lpthread -lgmp -ldl -lcrypt -lm -lc" 
checked program was: 
/* begin */ 
1: #include "ruby.h" 
2: 
3: int main(int argc, char **argv) 
4: { 
5: return 0; 
6: } 
/* end */ 

所以，在我看來ruby.h是問題。但我可以找到它：

/usr/include/ruby-2.3.0/ruby/ruby.h 
/usr/include/ruby-2.3.0/ruby.h 

我檢查Error while installing json gem 'mkmf.rb can't find header files for ruby'但其實我已經安裝了Ruby開發。

sudo dpkg -l | grep紅寶石還顯示我有：

sudo dpkg -l | grep ruby 
ii libruby2.3:amd64      2.3.1-2~16.04      amd64  Libraries necessary to run Ruby 2.3 
ii rake         10.5.0-2       all   ruby make-like utility 
ii ruby         1:2.3.0+1       all   Interpreter of object-oriented scripting language Ruby (default version) 
ii ruby-bundler       1.11.2-1       all   Manage Ruby application dependencies (runtime) 
ii ruby-dev:amd64      1:2.3.0+1       amd64  Header files for compiling extension modules for Ruby (default version) 
ii ruby-did-you-mean      1.0.0-2       all   smart error messages for Ruby > 2.3 
ii ruby-eventmachine      1.0.7-3build3      amd64  Ruby/EventMachine library 
ii ruby-minitest       5.8.4-2       all   Ruby test tools supporting TDD, BDD, mocking, and benchmarking 
ii ruby-molinillo      0.4.3-1       all   generic dependency resolution algorithm 
ii ruby-mysql       2.9.1-1ubuntu1     amd64  MySQL module for Ruby 
ii ruby-mysql2       0.4.3-2ubuntu2     amd64  simple, fast MySQL library for Ruby 
ii ruby-net-http-persistent    2.9.4-1       all   Manages persistent connections using Net::HTTP 
ii ruby-net-telnet      0.1.1-2       all   telnet client library 
ii ruby-power-assert      0.2.7-1       all   library showing values of variables and method calls in an expression 
ii ruby-test-unit      3.1.7-2       all   unit testing framework for Ruby 
ii ruby-thor        0.19.1-2       all   Ruby scripting framework 
ii ruby2.3        2.3.1-2~16.04      amd64  Interpreter of object-oriented scripting language Ruby 
ii ruby2.3-dev:amd64      2.3.1-2~16.04      amd64  Header files for compiling extension modules for the Ruby 2.3 
ii rubygems-integration     1.10        all   integration of Debian Ruby packages with Rubygems 

那麼我該如何解決這個問題？

Answer 1

嘗試安裝gcc和make。這爲我工作。

apt-get install gcc make