includes: add ext to the includes path.

move dnet to the correct place so that we use this

--HG--
rename : ext/dnet/dnet/addr.h => ext/dnet/addr.h
rename : ext/dnet/dnet/arp.h => ext/dnet/arp.h
rename : ext/dnet/dnet/blob.h => ext/dnet/blob.h
rename : ext/dnet/dnet/eth.h => ext/dnet/eth.h
rename : ext/dnet/dnet/fw.h => ext/dnet/fw.h
rename : ext/dnet/dnet/icmp.h => ext/dnet/icmp.h
rename : ext/dnet/dnet/intf.h => ext/dnet/intf.h
rename : ext/dnet/dnet/ip.h => ext/dnet/ip.h
rename : ext/dnet/dnet/ip6.h => ext/dnet/ip6.h
rename : ext/dnet/dnet/os.h => ext/dnet/os.h
rename : ext/dnet/dnet/rand.h => ext/dnet/rand.h
rename : ext/dnet/dnet/route.h => ext/dnet/route.h
rename : ext/dnet/dnet/tcp.h => ext/dnet/tcp.h
rename : ext/dnet/dnet/udp.h => ext/dnet/udp.h

SConstruct

@@ -373,6 +373,9 @@ else:
 Export('base_dir')
 Export('extras_dir_list')
 
+# the ext directory should be on the #includes path
+env.Append(CPPPATH=[Dir('ext')])
+
 # M5_PLY is used by isa_parser.py to find the PLY package.
 env.Append(ENV = { 'M5_PLY' : Dir('ext/ply').abspath })
 
@@ -418,7 +421,6 @@ if env['BATCH']:
 if sys.platform == 'cygwin':
     # cygwin has some header file issues...
     env.Append(CCFLAGS=Split("-Wno-uninitialized"))
-env.Append(CPPPATH=[Dir('ext/dnet')])
 
 # Check for SWIG
 if not env.has_key('SWIG'):

ext/gzstream/SConscript

@@ -28,8 +28,6 @@
 #
 # Authors: Nathan Binkert
 
-import os, subprocess
-
 Import('env')
 
 env.Library('gzstream', [File('gzstream.cc')])