No such file or directory "ruby/config.h" when trying to compile C++ into Ruby using SWIG -


i'm trying basic example running using swig convert c++ file ruby. have ruby 2.0.0p451 (64 bit version) installed , i've installed 64-bit devkit. i'm running windows 7 , trying use swigwin-2.0.12. finally, using gcc c++ compiler supplied mingw-builds 64-bit version of windows.

i have basic c++ hello world program shown below.

#include <iostream> #include <cstdlib>  using namespace std;  main() {     cout << "hello world!";     system("pause");     return 0; }

at command prompt, use command:

swig -module -c++ -ruby hello_world.cpp

this completes fine , produces file titled hello_world_wrap.cxx. however, when receive error when try compile .cxx file using command:

g++ -fpic -c hello_world_wrap.cxx -ic:\ruby200-x64\include\ruby-2.0.0

the error receiving is:

error command prompt

all research i've done has pointed me installation of incorrect devkit, don't think issue. i've made sure download 64-bit version of ruby , devkit. i've checked folder specified in error, , there no config.h file. i'm not sure why config.h file not exist or why ruby.h trying load it.

any thoughts?

check c:\ruby200-x64\include\ruby-2.0.0\ruby\config.h exists. if not, find , fix path.

update:

check if there ruby.h in same folder. if there use -ic:\ruby200-x64\include\ruby-2.0.0\ruby\x64-mingw instead. otherwise try adding second -i, path. agree little strange (not former, if have have 2 -i). script @ https://groups.google.com/forum/m/#!topic/comp.lang.ruby/rpjuvxpfi30 suggests might normal, i.e. need 1 -i platform-independent headers , 1 platform-dependent.


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