Error compiling on MacOS about stackprof HOT 1 CLOSED

"/usr/bin/cc -o conftest -I/opt/rubies/2.2.2/include/ruby-2.2.0/x86_64-darwin14 -I/opt/rubies/2.2.2/include/ruby-2.2.0/ruby/backward -I/opt/rubies/2.2.2/include/ruby-2.2.0 -I../../../../ext/stackprof -I/opt/rubies/2.2.2/include  -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT   -I/opt/boxen/homebrew/include -march=core2 -O3 -O3 -Wno-error=shorten-64-to-32  -pipe conftest.c  -L. -L/opt/rubies/2.2.2/lib -L. -L/opt/rubies/2.2.2/lib -L/opt/boxen/homebrew/lib -fstack-protector -L/usr/local/lib     -lruby-static -framework CoreFoundation  -lpthread -ldl -lobjc "


Agreeing to the Xcode/iOS license requires admin privileges, please re-run as root via sudo.


checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: int main(int argc, char **argv)
4: {
5:   return 0;
6: }
/* end */