Wenn ich versuche, bson_ext zu installieren, sehe ich den Fehler ... Die Installation von json gem funktioniert einwandfrei. Dazu müssen auch native Erweiterungen erstellt werden. Ich habe alles versucht. Ähnliche Fragen ohne gute Antwort.

$ gem install bson_ext
Temporarily enhancing PATH to include DevKit...
Building native extensions.  This could take a while...
ERROR:  Error installing bson_ext:
        ERROR: Failed to build gem native extension.

        c:/Ruby193/bin/ruby.exe extconf.rb
checking for asprintf()... no
checking for ruby/st.h... yes
checking for ruby/regex.h... yes
checking for ruby/encoding.h... yes
creating Makefile

make
generating cbson-i386-mingw32.def
compiling bson_buffer.c
compiling cbson.c
cbson.c:25:23: fatal error: arpa/inet.h: No such file or directory
compilation terminated.
make: *** [cbson.o] Error 1


Gem files will remain installed in c:/Ruby193/lib/ruby/gems/1.9.1/gems/bson_ext-
1.11.1 for inspection.
Results logged to c:/Ruby193/lib/ruby/gems/1.9.1/gems/bson_ext-1.11.1/ext/cbson/
gem_make.out

$ gem install json
Temporarily enhancing PATH to include DevKit...
Building native extensions.  This could take a while...
Successfully installed json-1.8.1
1 gem installed
Installing ri documentation for json-1.8.1...
Installing RDoc documentation for json-1.8.1...