gem install debugger -v '1.5.0' fails

Question

I am trying to do bundle in the large project on Mavericks and some gems are broken or something wrong with my environment in spite of this is fresh install of rbenv.

$ gem install debugger -v '1.5.0'
Building native extensions.  This could take a while...
ERROR:  Error installing debugger:
    ERROR: Failed to build gem native extension.

        /Users/samat/.rbenv/versions/1.9.3-p448/bin/ruby extconf.rb
checking for rb_method_entry_t.called_id in method.h... no
checking for rb_control_frame_t.method_id in method.h... no
checking for rb_method_entry_t.called_id in method.h... no
checking for rb_control_frame_t.method_id in method.h... no
Makefile creation failed
**************************************************************************
No source for ruby-1.9.3-p448 provided with debugger-ruby_core_source gem.
**************************************************************************
*** 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.
    ...

Have no idea of what configuration options do I need

In mkmf I see things like

"gcc -I/Users/samat/.rbenv/versions/1.9.3-p448/include/ruby-1.9.1/x86_64-darwin13.0.0 -I/Users/samat/.rbenv/versions/1.9.3-p448/include/ruby-1.9.1/ruby/backward -I/Users/samat/.rbenv/versions/1.9.3-p448/include/ruby-1.9.1 -I. -I/Users/samat/.rbenv/versions/1.9.3-p448/include/ruby-1.9.1/ruby-1.9.3-p448 -I'/Users/samat/.rbenv/versions/1.9.3-p448/include'  -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE  -I'/Users/samat/.rbenv/versions/1.9.3-p448/include'   -O3 -Wno-error=shorten-64-to-32  -pipe   -c conftest.c"
conftest.c:3:10: fatal error: 'method.h' file not found
#include <method.h>
         ^
1 error generated.
checked program was:
/* begin */
 1: #include "ruby.h"
 2: 
 3: #include <method.h>
    ...

I use rbenv,

$ rbenv version
1.9.3-p448 (set by /Users/samat/Documents/bm-git/.ruby-version)

Answer 1

From the debugger page it says that if the ruby source can't be found, it will try to install debugger-ruby_core_source, which is actually what fails for me. I use rbenv, so I according to the debugger gem instructions, I pointed it to the rbenv source.

gem install debugger -- --with-ruby-include=~/.rbenv/versions/1.9.3-p484/include