[ruby-core:47276] [ruby-trunk - Bug #6903] [[Ruby 1.9:]] --enable-load-relative broken on systems with /lib64

Issue #6903 has been updated by mpapis (Michal Papis).


=begin
My patch does not fix it - it was only an attempt to make it working, it's not final, it did fix the rpath and compiled in paths, but it does not fix.

My guess is that ruby library search code still has /lib hardcoded and because of this it does not find libraries compiled in /lib64 ... all that said it happens only with `--enable-load-relative`. If you could point me to the code that handles library search when it is in effect I could play with it and try to prepare a full fix.

Also can you point me to to the:

> unofficial (and probably incomplete) modification

=end
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Bug #6903: [[Ruby 1.9:]] --enable-load-relative broken on systems with /lib64
https://bugs.ruby-lang.org/issues/6903#change-28977

Author: mpapis (Michal Papis)
Status: Third Party's Issue
Priority: Normal
Assignee: 
Category: build
Target version: 
ruby -v: ruby 1.9.3p194 (2012-04-20 revision 35410) [x86_64-linux]


=begin
Trying to build ruby with `--enable-load-relative` on system where libraries are by default stored in lib64.

This leads to this error on most ruby operations, with minimal example `ruby -e 'p :a'`:

    <internal:gem_prelude>:1:in `require': cannot load such file -- rubygems.rb (LoadError)
       	    from <internal:gem_prelude>:1:in `<compiled>'

It works when I prefix it with `RUBYLIB`:

    RUBYLIB=/home/mpapis/.rvm/rubies/ruby-1.9.3-p194/lib64/ruby/:/home/mpapis/.rvm/rubies/ruby-1.9.3-p194/lib64/ruby/1.9.1/:/home/mpapis/.rvm/rubies/ruby-1.9.3-p194/lib64/ruby/1.9.1/x86_64-linux/ /home/mpapis/.rvm/rubies/ruby-1.9.3-p194/bin/ruby -e 'p :a'

So the `lib64` path was not respected, I have prepared the attached patch and compiled using it but it did not helped.

The only thing I could use to fix it was compiling using additional configure flag:

    --libdir=/home/mpapis/.rvm/rubies/ruby-1.9.3-p194/lib

so the default detected `lib64` was overwritten and it all worked fine.

The check for the libdir is: `gcc -print-multi-os-directory`

Under this address should be a link to vagrant box for system that has lib64 as default: https://github.com/jtperry/OpenSuseVagrantBox

The best solution would be to fix loading libraries from the custom paths, but if it is not possible it would be also good enough to force libdir=.../lib if not specified by user.
=end


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