SF Tracker [ 1663004 ] Compile on Cygwin

Submitted By: Jon Foster - jongfoster
	This patch gives basic support for building under Cygwin - it compiles,
	links, and a simple UPnP device application can initialise. I'm not sure
	if it actually works yet, but this is definitely a step in the right
	direction.
	
	Patch is against the 1.4.1 release. Changes are:
	
	* threadutil/inc/ithread.h: Fix the ithread mutex support to use
	documented, portable APIs (if present) rather than the Non-Portable (_NP)
	ones it uses now. This is required because Cygwin implements only the
	portable API.
	
	* threadutil/src/ThreadPool.c: Fake SetPolicyType() to do nothing on Cygwin
	because otherwise it fails. Should probably investigate why it fails and
	add a proper implementation later.
	
	* upnp/src/api/upnpapi.c: On Cygwin, zero out the GlobalHndMutex structure
	before initialising it. Without this, the initialisation fails. This
	appears to be a bug in Cygwin.
	
	* upnp/src/genlib/net/uri/uri.c: Use gethostbyname() on Cygwin.



git-svn-id: https://pupnp.svn.sourceforge.net/svnroot/pupnp/trunk@151 119443c7-1b9e-41f8-b6fc-b9c35fce742c

threadutil/src/ThreadPool.c

@@ -90,6 +90,10 @@ FreeThreadPoolJob( ThreadPool * tp,
 static int
 SetPolicyType( PolicyType in )
 {
+    #ifdef __CYGWIN__
+     /* TODO not currently working... */
+     return 0;
+    #else
     #ifdef WIN32
      return sched_setscheduler( 0, in);
     #else
@@ -99,6 +103,7 @@ SetPolicyType( PolicyType in )
      current.sched_priority = DEFAULT_SCHED_PARAM;
      return sched_setscheduler( 0, in, &current );
     #endif
+    #endif
 }
 
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