From: "mpapis (Michal Papis)" <mpapis@...>
Date: 2012-08-22T12:21:52+09:00
Subject: [ruby-core:47270] [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
lib64 is the default path for installing libraries on my system, I guess #6207 is related in this manner (other libraries also install to /lib64).

I can find all ruby libraries/code in /lib64, /lib is empty.

I also get the /lib64 when running:

    gcc -print-multi-os-directory

so this setting is embedded in gcc.

as for the order - I did not payed attention to it, just tried to get it working at all.
=end

----------------------------------------
Bug #6903: [[Ruby 1.9:]] --enable-load-relative broken on systems with /lib64
https://bugs.ruby-lang.org/issues/6903#change-28969

Author: mpapis (Michal Papis)
Status: Feedback
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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