From fcbf63e62c627deae76c1b8cb8c0876c536ed811 Mon Sep 17 00:00:00 2001
From: Jari Vetoniemi <jari.vetoniemi@indooratlas.com>
Date: Mon, 16 Mar 2020 18:49:26 +0900
Subject: Fresh start

---
 jni/ruby/ext/zlib/extconf.rb | 64 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 jni/ruby/ext/zlib/extconf.rb

(limited to 'jni/ruby/ext/zlib/extconf.rb')

diff --git a/jni/ruby/ext/zlib/extconf.rb b/jni/ruby/ext/zlib/extconf.rb
new file mode 100644
index 0000000..d3a332b
--- /dev/null
+++ b/jni/ruby/ext/zlib/extconf.rb
@@ -0,0 +1,64 @@
+#
+# extconf.rb
+#
+# $Id: extconf.rb 37527 2012-11-06 18:50:53Z luislavena $
+#
+
+require 'mkmf'
+require 'rbconfig'
+
+dir_config 'zlib'
+
+
+if %w'z libz zlib1 zlib zdll zlibwapi'.find {|z| have_library(z, 'deflateReset')} and
+    have_header('zlib.h') then
+
+  defines = []
+
+  Logging::message 'checking for kind of operating system... '
+  os_code = with_config('os-code') ||
+    case RUBY_PLATFORM.split('-',2)[1]
+    when 'amigaos' then
+      os_code = 'AMIGA'
+    when /\Aos2[\-_]emx\z/ then
+      os_code = 'OS2'
+    when /mswin|mingw|bccwin/ then
+      # NOTE: cygwin should be regarded as Unix.
+      os_code = 'WIN32'
+    else
+      os_code = 'UNIX'
+    end
+  os_code = 'OS_' + os_code.upcase
+
+  OS_NAMES = {
+    'OS_MSDOS'   => 'MS-DOS',
+    'OS_AMIGA'   => 'Amiga',
+    'OS_VMS'     => 'VMS',
+    'OS_UNIX'    => 'Unix',
+    'OS_ATARI'   => 'Atari',
+    'OS_OS2'     => 'OS/2',
+    'OS_MACOS'   => 'MacOS',
+    'OS_TOPS20'  => 'TOPS20',
+    'OS_WIN32'   => 'Win32',
+    'OS_VMCMS'   => 'VM/CMS',
+    'OS_ZSYSTEM' => 'Z-System',
+    'OS_CPM'     => 'CP/M',
+    'OS_QDOS'    => 'QDOS',
+    'OS_RISCOS'  => 'RISCOS',
+    'OS_UNKNOWN' => 'Unknown',
+  }
+  unless OS_NAMES.key? os_code then
+    raise "invalid OS_CODE `#{os_code}'"
+  end
+  Logging::message "#{OS_NAMES[os_code]}\n"
+  defines << "OS_CODE=#{os_code}"
+
+  $defs.concat(defines.collect{|d|' -D'+d})
+
+  have_func('crc32_combine', 'zlib.h')
+  have_func('adler32_combine', 'zlib.h')
+  have_type('z_crc_t', 'zlib.h')
+
+  create_makefile('zlib')
+
+end
-- 
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