gistfile1.txt

Building native extensions.  This could take a while...
ERROR:  Error installing ruby-debug-base19:
	ERROR: Failed to build gem native extension.

/Users/towski/.rvm/rubies/ruby-1.9.1-p378/bin/ruby extconf.rb
checking for rb_method_entry_t.body in method.h... no
checking for vm_core.h... no
checking for rb_method_entry_t.body in method.h... no
checking for vm_core.h... yes
checking for iseq.h... yes
checking for insns.inc... yes
checking for insns_info.inc... yes
checking for eval_intern.h... yes
creating Makefile

make
gcc -I. -I/Users/towski/.rvm/rubies/ruby-1.9.1-p378/include/ruby-1.9.1/i386-darwin10.3.1 -I/Users/towski/.rvm/rubies/ruby-1.9.1-p378/include/ruby-1.9.1/ruby/backward -I/Users/towski/.rvm/rubies/ruby-1.9.1-p378/include/ruby-1.9.1 -I. -DHAVE_VM_CORE_H -DHAVE_ISEQ_H -DHAVE_INSNS_INC -DHAVE_INSNS_INFO_INC -DHAVE_EVAL_INTERN_H -I/Users/towski/.rvm/rubies/ruby-1.9.1-p378/include/ruby-1.9.1/ruby-1.9.1-p378 -fno-common  -O2 -g -Wall -Wno-parentheses  -fno-common -pipe -fno-common  -o breakpoint.o -c breakpoint.c
gcc -I. -I/Users/towski/.rvm/rubies/ruby-1.9.1-p378/include/ruby-1.9.1/i386-darwin10.3.1 -I/Users/towski/.rvm/rubies/ruby-1.9.1-p378/include/ruby-1.9.1/ruby/backward -I/Users/towski/.rvm/rubies/ruby-1.9.1-p378/include/ruby-1.9.1 -I. -DHAVE_VM_CORE_H -DHAVE_ISEQ_H -DHAVE_INSNS_INC -DHAVE_INSNS_INFO_INC -DHAVE_EVAL_INTERN_H -I/Users/towski/.rvm/rubies/ruby-1.9.1-p378/include/ruby-1.9.1/ruby-1.9.1-p378 -fno-common  -O2 -g -Wall -Wno-parentheses  -fno-common -pipe -fno-common  -o ruby_debug.o -c ruby_debug.c
ruby_debug.c: In function ‘ruby_method_ptr’:
ruby_debug.c:141: error: ‘rb_method_entry_t’ undeclared (first use in this function)
ruby_debug.c:141: error: (Each undeclared identifier is reported only once
ruby_debug.c:141: error: for each function it appears in.)
ruby_debug.c:141: error: ‘method’ undeclared (first use in this function)
ruby_debug.c:142: warning: implicit declaration of function ‘rb_method_entry’
ruby_debug.c: In function ‘debug_event_hook’:
ruby_debug.c:719: error: ‘rb_method_entry_t’ undeclared (first use in this function)
ruby_debug.c:719: error: ‘me’ undeclared (first use in this function)
make: *** [ruby_debug.o] Error 1

How you fix this problem?

I installed a specific version of ruby-debug-base19, 0.11.23

gem install ruby-debug-base19 -v=0.11.23

Thanks