此问题针对Windows操作系统
我尝试安装宝石 'sinatra-websocket'，但当我运行 gem install sinatra-websocket 时，出现了以下错误...
ERROR: Failed to build gem native extension
... 以及其他内容...
C:/Ruby193/bin/ruby.exe extconf.rb
checking for main() in -lc... *** 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=C:/Ruby193/bin/ruby
--with-thin_parser-dir
--without-thin_parser-dir
--with-thin_parser-include
--without-thin_parser-include=${thin_parser-dir}/include
--with-thin_parser-lib
--without-thin_parser-lib=${thin_parser-dir}/lib
--with-clib
--without-clib
C:/Ruby193/lib/ruby/1.9.1/mkmf.rb:381:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
from C:/Ruby193/lib/ruby/1.9.1/mkmf.rb:461:in `try_link0'
from C:/Ruby193/lib/ruby/1.9.1/mkmf.rb:476:in `try_link'
from C:/Ruby193/lib/ruby/1.9.1/mkmf.rb:619:in `try_func'
from C:/Ruby193/lib/ruby/1.9.1/mkmf.rb:845:in `block in have_library'
from C:/Ruby193/lib/ruby/1.9.1/mkmf.rb:790:in `block in checking_for'
from C:/Ruby193/lib/ruby/1.9.1/mkmf.rb:284:in `block (2 levels) in postpone'
from C:/Ruby193/lib/ruby/1.9.1/mkmf.rb:254:in `open'
from C:/Ruby193/lib/ruby/1.9.1/mkmf.rb:284:in `block in postpone'
from C:/Ruby193/lib/ruby/1.9.1/mkmf.rb:254:in `open'
from C:/Ruby193/lib/ruby/1.9.1/mkmf.rb:280:in `postpone'
from C:/Ruby193/lib/ruby/1.9.1/mkmf.rb:789:in `checking_for'
from C:/Ruby193/lib/ruby/1.9.1/mkmf.rb:840:in `have_library'
from extconf.rb:4:in `<main>'
以下是 C:\Ruby193\lib\ruby\gems\1.9.1\gems\thin-1.6.3\ext\thin_parser 文件夹中的 mkmf 文件:
"gcc -o conftest -IC:/Ruby193/include/ruby-1.9.1/i386-mingw32 -IC:/Ruby193/include/ruby-1.9.1/ruby/backward -IC:/Ruby193/include/ruby-1.9.1 -I. -DFD_SETSIZE=2048 -DFD_SETSIZE=2048 -O3 -fno-omit-frame-pointer -g -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration conftest.c -L. -LC:/Ruby193/lib -L. -march=i486 -lmsvcrt-ruby191 -lshell32 -lws2_32 -limagehlp -lshlwapi "
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: #include <winsock2.h>
4: #include <windows.h>
5: int main(int argc, char **argv)
6: {
7: return 0;
8: }
/* end */
我正在使用Windows 7。
为什么会出现这个错误？有一行写着“无法创建Makefile...”，但那是否相关呢？
make -v和gcc -v来检查。你可以尝试安装Ruby开发工具包。 - ian