在C中嵌入ruby代码

Question

I know there's severals post about this, but i'm stack

here's my C code

#include </usr/include/ruby-1.9.1/ruby/ruby.h>
#include <stdio.h>
#include <stdlib.h>

int main()
{
 ruby_init();
 rb_eval_string("puts 'hello'");
 ruby_finalize();
 return 0;
 }

i've got the following error when compile it in sublime text 2

In file included from /Users/pierrebaille/Code/Ruby/embedRuby/embedRubyFirst.c:1:
/usr/include/ruby-1.9.1/ruby/ruby.h:1481:24: error: ruby/subst.h: No such file or directory         
[Finished in 0.1s with exit code 1]

thanks for your help

Answer 1

You should not hard-code the full path of a header file like

#include </usr/include/ruby-1.9.1/ruby/ruby.h>

proper is

#include <ruby.h>

and told your gcc to search the header file via CFLAGS and libariy via LD_FLAGS, simply command without makefile could be:

gcc -o demo.exe -I/path/to/ruby/headers rubydemo.c -L/path/to/ruby/lib -lruby-libary-name

Answer 2

One of you files you're including in turn includes ruby/subst.h , , but it appears that ruby is not in your path, which is why you have this in your code:

#include </usr/include/ruby-1.9.1/ruby/ruby.h>

Instead of hardcoding paths you should simply add "/some_path/" to your compiler path(s) setting, where some_path contains the folder ruby as a child. Now your own include turns into:

#include <ruby/ruby.h>