From 346e147ba6480839b87046e9a9efab0bf6ed3660 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?V=C3=ADt=20Ondruch?= <vondruch@redhat.com>
Date: Wed, 10 Aug 2016 17:35:48 +0200
Subject: [PATCH] Rely on ldd to detect glibc.

This is just workaround, since we know we are quite sure this will be successful
on Red Hat platforms.

This workaround rhbz#1361037
---
 test/fiddle/helper.rb | 111 ------------------------------------------
 1 file changed, 111 deletions(-)

diff --git a/test/fiddle/helper.rb b/test/fiddle/helper.rb
index 1da3d93..65148a1 100644
--- a/test/fiddle/helper.rb
+++ b/test/fiddle/helper.rb
@@ -6,115 +6,6 @@
 
 libc_so = libm_so = nil
 
-case RUBY_PLATFORM
-when /cygwin/
-  libc_so = "cygwin1.dll"
-  libm_so = "cygwin1.dll"
-when /android/
-  libdir = '/system/lib'
-  if [0].pack('L!').size == 8
-    libdir = '/system/lib64'
-  end
-  libc_so = File.join(libdir, "libc.so")
-  libm_so = File.join(libdir, "libm.so")
-when /linux/
-  libdir = '/lib'
-  case RbConfig::SIZEOF['void*']
-  when 4
-    # 32-bit ruby
-    case RUBY_PLATFORM
-    when /armv\w+-linux/
-      # In the ARM 32-bit libc package such as libc6:armhf libc6:armel,
-      # libc.so and libm.so are installed to /lib/arm-linux-gnu*.
-      # It's not installed to /lib32.
-      dirs = Dir.glob('/lib/arm-linux-gnu*')
-      libdir = dirs[0] if dirs && File.directory?(dirs[0])
-    else
-      libdir = '/lib32' if File.directory? '/lib32'
-    end
-  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/, /mswin/
-  require "rbconfig"
-  crtname = RbConfig::CONFIG["RUBY_SO_NAME"][/msvc\w+/] || 'ucrtbase'
-  libc_so = libm_so = "#{crtname}.dll"
-when /darwin/
-  libc_so = libm_so = "/usr/lib/libSystem.B.dylib"
-when /kfreebsd/
-  libc_so = "/lib/libc.so.0.1"
-  libm_so = "/lib/libm.so.1"
-when /gnu/	#GNU/Hurd
-  libc_so = "/lib/libc.so.0.3"
-  libm_so = "/lib/libm.so.6"
-when /mirbsd/
-  libc_so = "/usr/lib/libc.so.41.10"
-  libm_so = "/usr/lib/libm.so.7.0"
-when /freebsd/
-  libc_so = "/lib/libc.so.7"
-  libm_so = "/lib/libm.so.5"
-when /bsd|dragonfly/
-  libc_so = "/usr/lib/libc.so"
-  libm_so = "/usr/lib/libm.so"
-when /solaris/
-  libdir = '/lib'
-  case RbConfig::SIZEOF['void*']
-  when 4
-    # 32-bit ruby
-    libdir = '/lib' if File.directory? '/lib'
-  when 8
-    # 64-bit ruby
-    libdir = '/lib/64' if File.directory? '/lib/64'
-  end
-  libc_so = File.join(libdir, "libc.so")
-  libm_so = File.join(libdir, "libm.so")
-when /aix/
-  pwd=Dir.pwd
-  libc_so = libm_so = "#{pwd}/libaixdltest.so"
-  unless File.exist? libc_so
-    cobjs=%w!strcpy.o!
-    mobjs=%w!floats.o sin.o!
-    funcs=%w!sin sinf strcpy strncpy!
-    expfile='dltest.exp'
-    require 'tmpdir'
-    Dir.mktmpdir do |dir|
-      begin
-        Dir.chdir dir
-        %x!/usr/bin/ar x /usr/lib/libc.a #{cobjs.join(' ')}!
-        %x!/usr/bin/ar x /usr/lib/libm.a #{mobjs.join(' ')}!
-        %x!echo "#{funcs.join("\n")}\n" > #{expfile}!
-        require 'rbconfig'
-        if RbConfig::CONFIG["GCC"] = 'yes'
-          lflag='-Wl,'
-        else
-          lflag=''
-        end
-        flags="#{lflag}-bE:#{expfile} #{lflag}-bnoentry -lm"
-        %x!#{RbConfig::CONFIG["LDSHARED"]} -o #{libc_so} #{(cobjs+mobjs).join(' ')} #{flags}!
-      ensure
-        Dir.chdir pwd
-      end
-    end
-  end
-else
-  libc_so = ARGV[0] if ARGV[0] && ARGV[0][0] == ?/
-  libm_so = ARGV[1] if ARGV[1] && ARGV[1][0] == ?/
-  if( !(libc_so && libm_so) )
-    $stderr.puts("libc and libm not found: #{$0} <libc> <libm>")
-  end
-end
-
-libc_so = nil if !libc_so || (libc_so[0] == ?/ && !File.file?(libc_so))
-libm_so = nil if !libm_so || (libm_so[0] == ?/ && !File.file?(libm_so))
-
-# macOS 11.0+ removed libSystem.B.dylib from /usr/lib. But It works with dlopen.
-if RUBY_PLATFORM =~ /darwin/
-  libc_so = libm_so = "/usr/lib/libSystem.B.dylib"
-end
-
 if !libc_so || !libm_so
   ruby = EnvUtil.rubybin
   # When the ruby binary is 32-bit and the host is 64-bit,
-- 
2.9.2