--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ext/extconf.rb	Thu Dec 25 07:33:20 2008 +0000
@@ -0,0 +1,36 @@
+#!/usr/bin/env ruby
+
+require 'mkmf'
+require 'fileutils'
+
+ADDITIONAL_LIBRARY_DIRS = %w[
+	/usr/local/lib
+	/opt/lib
+	/opt/local/lib
+]
+ADDITIONAL_INCLUDE_DIRS = %w[
+	/usr/local/include
+	/opt/include
+	/opt/local/include
+]
+
+$CFLAGS << ' -Wall' << ' -ggdb' << ' -DDEBUG'
+
+def fail( *messages )
+	$stderr.puts( *messages )
+	exit( 1 )
+end
+
+
+dir_config( 'bsdjail' )
+
+have_header( 'stdio.h' ) 		or fail "Can't find the stdio.h header."
+have_header( 'sys/param.h' ) 	or fail "Can't find the sys/param.h header."
+have_header( 'sys/jail.h' ) 	or fail "Can't find the sys/jail.h header."
+have_header( 'sys/types.h' ) 	or fail "Can't find the sys/types.h header."
+have_header( 'unistd.h' ) 		or fail "Can't find the unistd.h header."
+
+have_func( "jail_attach" )		or fail "Can't find jail_attach in the stdlib."
+
+create_makefile( 'bsdjail' )
+