From: Alex Young <alex@...>
Date: 2011-06-30T07:03:45+09:00
Subject: [ruby-core:37676] [Ruby 1.9 - Bug #4946][Open] Building libruby-static.a with option nodynamic and --with-static-link-ext doesn't disable dlopen


Issue #4946 has been reported by Alex Young.

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Bug #4946: Building libruby-static.a with option nodynamic and --with-static-link-ext doesn't disable dlopen
http://redmine.ruby-lang.org/issues/4946

Author: Alex Young
Status: Open
Priority: Normal
Assignee: 
Category: build
Target version: 1.9.2
ruby -v: ruby 1.9.2p180 (2011-02-18 revision 30909) [i686-linux]


I uncomment option nodynamic in ext/Setup and run ./configure --with-static-link-ext, then make libruby-static.a

I then compile this:

  /* trial.c */
  #include "ruby.h"
  int main(){
    ruby_init();
    return 0;
  }

like so:

  gcc -c trial.c -o trial.o -Iruby-1.9.2-p180/include -Iruby-1.9.2-p180/.ext/include/i686-linux
  gcc -static trial.o -Lruby-1.9.2-p180 -lruby-static -lpthread -lrt -ldl -lcrypt -lm -o trial

And I see this warning:

  ruby-1.9.2-p180/libruby-static.a(dln.o): In function `dln_load':
  /home/alex/projects/scratch/ruby/ruby-1.9.2-p180/dln.c:1276: warning: Using 'dlopen' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking

I specifically do not want any run-time code loading capability, but I can see no documented way to disable dlopen; is there any way to silence this warning?


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