From: Erik Hollensbe <redmine@...>
Date: 2010-09-16T05:23:23+09:00
Subject: [ruby-core:32406] [Ruby 1.9-Bug#3834][Open] ext/openssl fails to build in certain scenarios due to misordered pkg-config check


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Bug #3834: ext/openssl fails to build in certain scenarios due to misorde=
red pkg-config check
http://redmine.ruby-lang.org/issues/show/3834

Author: Erik Hollensbe
Status: Open, Priority: Normal
Category: build, Target version: 1.9.3
ruby -v: HEAD

If mkmf via ext/openssl/extconf.rb is allowed to search for both headers =
and libs before consulting pkg-config, multiple installations of openssl =
will cause trouble during build time.

This is evident on my OS X 10.6 system with macports, gcc 4.2.1 from macp=
orts, openssl 1.0.0a from macports, and openssl 0.9.x provided by OS X. T=
he problem appears at a glance is that it will locate the 1.0 headers fir=
st, the 0.9 libs first, and then prepare the conftest programs with impro=
per ldflags based on its findings.

It's entirely probable there's a deeper autoconf, rbconfig, mkmf, or comp=
iler issue that I am missing, but the solution I found is in the attached=
 patch, which is to run pkg_config first, and in the event it fails, fall=
 back to the default header / lib search that was previously in place. I =
think this will work for situations where pkg-config isn't available for =
openssl, but I was unable to test that case.


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http://redmine.ruby-lang.org

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