From d464704f111d211c1f1ff9ef23ef1d755054be00 Mon Sep 17 00:00:00 2001
From: shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 15 Aug 2007 19:08:43 +0000
Subject: add tag v1_8_5_54

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_8_5_54@12952 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ruby_1_8_5/ext/dl/extconf.rb | 193 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 193 insertions(+)
 create mode 100644 ruby_1_8_5/ext/dl/extconf.rb

(limited to 'ruby_1_8_5/ext/dl/extconf.rb')

diff --git a/ruby_1_8_5/ext/dl/extconf.rb b/ruby_1_8_5/ext/dl/extconf.rb
new file mode 100644
index 0000000000..beb15ab04c
--- /dev/null
+++ b/ruby_1_8_5/ext/dl/extconf.rb
@@ -0,0 +1,193 @@
+require 'mkmf'
+
+begin # for the exception SystemExit
+
+$:.unshift File.dirname(__FILE__)
+require 'type'
+
+if( ARGV.include?("--help") )
+  print <<EOF
+  --help             print this messages
+  --with-type-char   strictly use type 'char'
+  --with-type-short  strictly use type 'short'
+  --with-type-float  strictly use type 'float'
+  --with-args=<max_arg>
+  --with-callback=<max_callback>
+  --enable-asm       use the embedded assembler for passing arguments.
+                     (this option is available for i386 machine now.)
+  --enable-dlstack   use a stack emulation for constructing function call.
+EOF
+  exit(0)
+end
+
+($CPPFLAGS || $CFLAGS) << " -I."
+
+if (Config::CONFIG['CC'] =~ /gcc/)  # from Win32API
+  $CFLAGS << " -fno-defer-pop -fno-omit-frame-pointer"
+end
+
+$with_dlstack ||= true
+$with_asm = ! $with_dlstack
+
+$with_type_int = try_cpp(<<EOF)
+#include "config.h"
+#if SIZEOF_INT == SIZEOF_LONG
+#error int not needed
+#endif
+EOF
+
+$with_type_float = try_cpp(<<EOF)
+#include "config.h"
+#if SIZEOF_FLOAT == SIZEOF_DOUBLE
+#error float not needed
+#endif
+EOF
+
+$with_type_voidp = try_cpp(<<EOF)
+#include "config.h"
+#if SIZEOF_VOIDP == SIZEOF_INT || SIZEOF_VOIDP == SIZEOF_LONG
+#error void* not needed
+#endif
+EOF
+
+$with_type_char  = DLTYPE[CHAR][:sym]
+$with_type_short = DLTYPE[SHORT][:sym]
+$with_type_long  = DLTYPE[LONG][:sym]
+$with_type_double= DLTYPE[DOUBLE][:sym]
+$with_type_int   &= DLTYPE[INT][:sym]
+$with_type_float &= DLTYPE[FLOAT][:sym]
+$with_type_voidp &= DLTYPE[VOIDP][:sym]
+
+$with_type_char  = enable_config("type-char", $with_type_char)
+$with_type_short = enable_config("type-short", $with_type_short)
+$with_type_float = enable_config("type-float", $with_type_float)
+
+$with_asm        = enable_config("asm", $with_asm)
+$with_dlstack    = enable_config("dlstack", $with_dlstack)
+
+args = with_config("args")
+max_arg = nil
+if( $with_asm || $with_dlstack )
+  $with_type_char = true
+  $with_type_short = true
+  $with_type_float = true
+  max_arg = 0
+end
+if( args )
+  max_arg = args.to_i
+  if( !max_arg )
+    print("--with-args=<max_arg>\n")
+    exit(1)
+  end
+end
+max_arg   ||= 6
+
+max_callback = with_config("callback","10").to_i
+callback_types = DLTYPE.keys.length
+
+
+$dlconfig_h = <<EOF
+#define MAX_ARG           #{max_arg}
+EOF
+
+def dlc_define(const)
+  $dlconfig_h << "#if !defined(#{const})\n" +
+                 "# define #{const}\n" +
+                 "#endif\n"
+end
+
+$dlconfig_h << "#define MAX_CALLBACK #{max_callback}\n"
+$dlconfig_h << "#define CALLBACK_TYPES #{callback_types}\n"
+if( $with_dlstack )
+  $dlconfig_h << "#define USE_DLSTACK\n"
+else
+  if( $with_asm )
+    $dlconfig_h << "#define USE_INLINE_ASM\n"
+  end
+end
+if( $with_type_char )
+  $dlconfig_h << "#define WITH_TYPE_CHAR\n"
+end
+if( $with_type_short )
+  $dlconfig_h << "#define WITH_TYPE_SHORT\n"
+end
+if( $with_type_long )
+  $dlconfig_h << "#define WITH_TYPE_LONG\n"
+end
+if( $with_type_double )
+  $dlconfig_h << "#define WITH_TYPE_DOUBLE\n"
+end
+if( $with_type_float )
+  $dlconfig_h << "#define WITH_TYPE_FLOAT\n"
+end
+if( $with_type_int )
+  $dlconfig_h << "#define WITH_TYPE_INT\n"
+end
+if( $with_type_voidp )
+  $dlconfig_h << "#define WITH_TYPE_VOIDP\n"
+end
+
+if( have_header("windows.h") )
+  have_library("kernel32")
+  have_func("GetLastError", "windows.h")
+  dlc_define("HAVE_WINDOWS_H")
+  have_windows_h = true
+end
+
+if( have_header("dlfcn.h") )
+  dlc_define("HAVE_DLFCN_H")
+  have_library("dl")
+  have_func("dlopen")
+  have_func("dlclose")
+  have_func("dlsym")
+  if( have_func("dlerror") )
+    dlc_define("HAVE_DLERROR")
+  end
+elsif ( have_windows_h )
+  have_func("LoadLibrary")
+  have_func("FreeLibrary")
+  have_func("GetProcAddress")
+else
+  exit(0)
+end
+
+def File.update(file, str)
+  begin
+    open(file){|f|f.read} == str
+  rescue Errno::ENOENT
+    false
+  end or open(file, "w"){|f|f.print(str)}
+end
+
+File.update("dlconfig.h", <<EOF)
+#ifndef DLCONFIG_H
+#define DLCONFIG_H
+#{$dlconfig_h}
+#endif /* DLCONFIG_H */
+EOF
+
+File.update("dlconfig.rb", <<EOF)
+MAX_ARG = #{max_arg}
+MAX_CALLBACK = #{max_callback}
+CALLBACK_TYPES = #{callback_types}
+DLTYPE[CHAR][:sym]  = #{$with_type_char}
+DLTYPE[SHORT][:sym] = #{$with_type_short}
+DLTYPE[INT][:sym]   = #{$with_type_int}
+DLTYPE[LONG][:sym]  = #{$with_type_long}
+DLTYPE[FLOAT][:sym] = #{$with_type_float}
+DLTYPE[DOUBLE][:sym]= #{$with_type_double}
+DLTYPE[VOIDP][:sym] = #{$with_type_voidp}
+EOF
+
+$INSTALLFILES = [
+  ["./dlconfig.h", "$(archdir)$(target_prefix)", "."],
+  ["dl.h", "$(archdir)$(target_prefix)", ""],
+]
+$cleanfiles = %w[test/test.o]
+$distcleanfiles = %w[call.func callback.func cbtable.func dlconfig.rb
+./dlconfig.h test/libtest.so test/*~ *~ mkmf.log]
+
+create_makefile('dl')
+rescue SystemExit
+  # do nothing
+end
-- 
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