From: Takehiro Kubo <redmine@...>
Date: 2008-12-29T22:37:22+09:00
Subject: [ruby-core:20963] [Bug #932] incorrect case statement in "ext/dl/test/test_base.rb" causes library problems on openSUSE 11.1 64-bit

Issue #932 has been updated by Takehiro Kubo.


How about the following patch which is a piece of one I posted to #633.

Index: ext/dl/test/test_base.rb
===================================================================
--- ext/dl/test/test_base.rb	(revision 21112)
+++ ext/dl/test/test_base.rb	(working copy)
@@ -6,8 +6,17 @@
   LIBC_SO = "cygwin1.dll"
   LIBM_SO = "cygwin1.dll"
 when /linux/
-  LIBC_SO = "/lib/libc.so.6"
-  LIBM_SO = "/lib/libm.so.6"
+  libdir = '/lib'
+  case [0].pack('L!').size
+  when 4
+    # 32-bit ruby
+    libdir = '/lib32' if File.directory? '/lib32'
+  when 8
+    # 64-bit ruby
+    libdir = '/lib64' if File.directory? '/lib64'
+  end
+  LIBC_SO = File.join(libdir, "libc.so.6")
+  LIBM_SO = File.join(libdir, "libm.so.6")
 when /mingw/, /mswin32/
   LIBC_SO = "msvcrt.dll"
   LIBM_SO = "msvcrt.dll"


I got similar problems When I ran i386 ruby on ubuntu x86_64.
32-bit libraries are in /lib32 on the platform.

  redhat-based x86_64 linux distributions:
    /lib    - 32-bit libraries
    /lib64  - 64-bit libraries

  debian-based x86_64 linux distributions:
    /lib    - 64-bit libraries
    /lib32  - 32-bit libraries
    /lib64  - symbolic link to /lib

This patch will fix all cases.

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http://redmine.ruby-lang.org/issues/show/932

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