File "ruby.h" includes "config.h" which is not in proper location
In Ruby 2.0.0p451, I using SWIG to convert some C/C++ code into Ruby. However, when using GCC to compile the C++ code into Ruby and pointing GCC to the "ruby.h" file (i.e. gcc -fPIC -c test_wrap.cxx -IC:\Ruby200-x64\include\ruby-2.0.0), I receive the error...
I've looked in the folder where ruby.h is contained and there is no config.h file. It is located in the archdir folder.
#1 [ruby-core:61495] Updated by Vit Ondruch about 2 years ago
I am afraid this is by design. On Fedora, we have overcome this issue by adding header  and renaming the original file(s), but I know that upstream is not happy about this (, my 4th point) and they will suggest you to use mkmf to setup your build environment.