have_library: checking for main() in -lstdc++... -------------------- yes

"/usr/bin/gcc-4.2 -o conftest -I/Users/okamoto_satoru/.rvm/rubies/ruby-1.9.2-p290/include/ruby-1.9.1/x86_64-darwin10.8.0 -I/Users/okamoto_satoru/.rvm/rubies/ruby-1.9.2-p290/include/ruby-1.9.1/ruby/backward -I/Users/okamoto_satoru/.rvm/rubies/ruby-1.9.2-p290/include/ruby-1.9.1 -I. -I/Users/okamoto_satoru/.rvm/usr/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE    -O3 -ggdb -Wextra -Wno-unused-parameter -Wno-parentheses -Wpointer-arith -Wwrite-strings -Wno-missing-field-initializers -Wshorten-64-to-32 -Wno-long-long  -fno-common -pipe conftest.c  -L. -L/Users/okamoto_satoru/.rvm/rubies/ruby-1.9.2-p290/lib -L/Users/okamoto_satoru/.rvm/usr/lib -L.      -lruby.1.9.1-static  -lpthread -ldl -lobjc "
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: int main() {return 0;}
/* end */

"/usr/bin/gcc-4.2 -o conftest -I/Users/okamoto_satoru/.rvm/rubies/ruby-1.9.2-p290/include/ruby-1.9.1/x86_64-darwin10.8.0 -I/Users/okamoto_satoru/.rvm/rubies/ruby-1.9.2-p290/include/ruby-1.9.1/ruby/backward -I/Users/okamoto_satoru/.rvm/rubies/ruby-1.9.2-p290/include/ruby-1.9.1 -I. -I/Users/okamoto_satoru/.rvm/usr/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE    -O3 -ggdb -Wextra -Wno-unused-parameter -Wno-parentheses -Wpointer-arith -Wwrite-strings -Wno-missing-field-initializers -Wshorten-64-to-32 -Wno-long-long  -fno-common -pipe conftest.c  -L. -L/Users/okamoto_satoru/.rvm/rubies/ruby-1.9.2-p290/lib -L/Users/okamoto_satoru/.rvm/usr/lib -L.      -lruby.1.9.1-static -lstdc++  -lpthread -ldl -lobjc "
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: /*top*/
4: int main() {return 0;}
5: int t() { void ((*volatile p)()); p = (void ((*)()))main; return 0; }
/* end */

--------------------

have_header: checking for ruby/encoding.h... -------------------- yes

"/usr/bin/gcc-4.2 -E -I/Users/okamoto_satoru/.rvm/rubies/ruby-1.9.2-p290/include/ruby-1.9.1/x86_64-darwin10.8.0 -I/Users/okamoto_satoru/.rvm/rubies/ruby-1.9.2-p290/include/ruby-1.9.1/ruby/backward -I/Users/okamoto_satoru/.rvm/rubies/ruby-1.9.2-p290/include/ruby-1.9.1 -I. -I/Users/okamoto_satoru/.rvm/usr/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE    -O3 -ggdb -Wextra -Wno-unused-parameter -Wno-parentheses -Wpointer-arith -Wwrite-strings -Wno-missing-field-initializers -Wshorten-64-to-32 -Wno-long-long  -fno-common -pipe  conftest.c -o conftest.i"
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <ruby/encoding.h>
/* end */

--------------------