Use proper path to tre/regex; Fixup wscript a bit

common/JackGraphManager.cpp

@@ -24,7 +24,11 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 #include <assert.h>
 #include <stdlib.h>
 #include <algorithm>
+#ifdef HAVE_TRE_REGEX_H
+#include <tre/regex.h>
+#else
 #include <regex.h>
+#endif
 
 namespace Jack
 {

common/wscript

@@ -10,12 +10,12 @@ def configure(conf):
 
     if conf.env['IS_WINDOWS']:
         try:
-            conf.check(function_name='regcomp', header_name='regex.h', lib='regex', uselib_store='REGEX', define_name='HAVE_REGEX_H')
+            conf.check(header_name='regex.h', lib='regex', uselib_store='REGEX', define_name='HAVE_REGEX_H')
         except:
-            conf.check(function_name='regcomp', header_name='regex.h', lib='tre', uselib_store='REGEX', define_name='HAVE_REGEX_H')
-        conf.check(function_name='htons', header_name='winsock2.h', lib='ws2_32', uselib_store='WS2_32', define_name='HAVE_WINSOCK2_H')
-        conf.check(function_name='timeGetDevCaps', header_name=['windows.h', 'mmsystem.h'], lib='winmm', uselib_store='WINMM', define_name='HAVE_MMSYSTEM_H')
-        conf.check(function_name='EnumProcesses', header_name=['windows.h', 'psapi.h'], lib='psapi', uselib_store='PSAPI', define_name='HAVE_PSAPI_H')
+            conf.check(header_name='tre/regex.h', lib='tre', uselib_store='REGEX', define_name='HAVE_TRE_REGEX_H')
+        conf.check(header_name='winsock2.h', lib='ws2_32', uselib_store='WS2_32', define_name='HAVE_WINSOCK2_H')
+        conf.check(header_name=['windows.h', 'mmsystem.h'], lib='winmm', uselib_store='WINMM', define_name='HAVE_MMSYSTEM_H')
+        conf.check(header_name=['windows.h', 'psapi.h'], lib='psapi', uselib_store='PSAPI', define_name='HAVE_PSAPI_H')
 
 def create_jack_process_obj(bld, target, sources, uselib = None, framework = None):
     process = bld(features = ['cxx', 'cxxshlib'])
@@ -74,7 +74,7 @@ def build(bld):
         includes.append('..')
     else:
         includes.append('../..')
-    uselib = ['PTHREAD', 'CELT', 'OPUS', 'DB']
+    uselib = ['CELT', 'OPUS', 'DB', 'PTHREAD']
 
     if bld.env['IS_LINUX']:
         common_libsources += [