Platforms: use Waf builtin platform detection so the build scripts will work correctly with Jython

tools/waf/tar.py

@@ -1,4 +1,5 @@
 import Utils
+import Options
 import tarfile
 from TaskGen import feature, before
 import Task
@@ -33,7 +34,7 @@ def tar_up(task):
 		ti.mode = 0755
 		ti.size = os.path.getsize(src)
                 openmode = 'r'
-                if sys.platform == 'win32': openmode = openmode + 'b'
+                if Options.platform == 'win32': openmode = openmode + 'b'
                 f = file(src,openmode)
 		z.addfile(ti,fileobj=f)
 		f.close()

wscript

@@ -9,7 +9,6 @@ APPNAME = 'cloud'
 import shutil,os
 import email,time
 import optparse
-import platform
 import Utils,Node,Options,Logs,Scripting,Environment,Build,Configure
 from subprocess import Popen as _Popen,PIPE
 import os
@@ -358,9 +357,9 @@ def set_options(opt):
 	opt.tool_options('tar',tooldir='tools/waf')
 	opt.tool_options('mkisofs',tooldir='tools/waf')
 	opt.tool_options('usermgmt',tooldir='tools/waf')
-	if platform.system() not in ['Windows',"Darwin"]: opt.tool_options('compiler_cc')
 	opt.tool_options('python')
 	opt.tool_options('tomcat',tooldir='tools/waf')
+	if Options.platform not in ['darwin',"win32"]: opt.tool_options('compiler_cc')
 	
         inst_dir = opt.get_option_group('--bindir') # get the group that contains bindir
 	inst_dir.add_option('--javadir', # add javadir to the group that contains bindir

wscript_configure

@@ -4,7 +4,6 @@
 	- detects Tomcat (on Windows)
 	- detects or configures directories according to command-line options"""
 
-import platform
 import Utils,Node,Options,Logs,Scripting,Environment,Build,Configure
 from os import unlink as _unlink, makedirs as _makedirs, getcwd as _getcwd, chdir as _chdir
 try: from os import getuid as _getuid
@@ -91,8 +90,8 @@ hard_deps = [
 
 
 conf.check_message_1('Detecting distribution')
-if platform.system() == 'Windows': conf.env.DISTRO = "Windows"
-elif platform.system() == 'Darwin': conf.env.DISTRO = "Mac"
+if Options.platform == 'win32': conf.env.DISTRO = "Windows"
+elif Options.platform == 'darwin': conf.env.DISTRO = "Mac"
 elif _exists("/etc/network"): conf.env.DISTRO = "Ubuntu"
 elif _exists("/etc/fedora-release"): conf.env.DISTRO = "Fedora"
 elif _exists("/etc/centos-release") or _exists("/etc/redhat-release"): conf.env.DISTRO = "CentOS"