Issue #11165 has been reported by Tad Bochan.

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Bug #11165: gem install bio-samtools
https://bugs.ruby-lang.org/issues/11165

* Author: Tad Bochan
* Status: Open
* Priority: Normal
* Assignee: 
* ruby -v: ruby 2.3.0dev (2015-05-20 trunk 50560) [x86_64-linux]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
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gem install bio-samtools works with ruby 2.1.2 but fails with 2.3.0
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824 /home/tad : gem install bio-samtools
Building native extensions.  This could take a while...
ERROR:  Error installing bio-samtools:
	ERROR: Failed to build gem native extension.

    /home/tad/.rvm/rubies/ruby-head/bin/ruby mkrf_conf.rb

/home/tad/.rvm/rubies/ruby-head/bin/ruby -rubygems /home/tad/.rvm/gems/ruby-head@global/gems/rake-10.4.2/bin/rake RUBYARCHDIR=/home/tad/.rvm/gems/ruby-head/extensions/x86_64-linux/2.3.0/bio-samtools-2.3.2 RUBYLIBDIR=/home/tad/.rvm/gems/ruby-head/extensions/x86_64-linux/2.3.0/bio-samtools-2.3.2
:
:
:
samtools-0.1.19/bam.h~
cd samtools-0.1.19
patch < ../Makefile-bioruby.patch
patching file Makefile
patch < ../Makefile-suse.patch
patching file Makefile
Hunk #1 succeeded at 15 with fuzz 1 (offset 2 lines).
rake aborted!
NameError: uninitialized constant Config
/home/tad/.rvm/gems/ruby-head/gems/bio-samtools-2.3.2/ext/Rakefile:23:in `block (2 levels) in <top (required)>'
/home/tad/.rvm/gems/ruby-head/gems/bio-samtools-2.3.2/ext/Rakefile:19:in `block in <top (required)>'
Tasks: TOP => default => compile
(See full trace by running task with --trace)

rake failed, exit code 1

Gem files will remain installed in /home/tad/.rvm/gems/ruby-head/gems/bio-samtools-2.3.2 for inspection.
Results logged to /home/tad/.rvm/gems/ruby-head/extensions/x86_64-linux/2.3.0/bio-samtools-2.3.2/gem_make.out




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