fix compile warnings in libtess2

src/libtess2/bucketalloc.c

@@ -59,7 +59,7 @@ struct BucketAlloc
 
 static int CreateBucket( struct BucketAlloc* ba )
 {
-	size_t size;
+	unsigned int size;
 	Bucket* bucket;
 	void* freelist;
 	unsigned char* head;

src/libtess2/priorityq.c

@@ -209,13 +209,13 @@ PQhandle pqHeapInsert( TESSalloc* alloc, PriorityQHeap *pq, PQkey keyNew )
 			// If the heap overflows, double its size.
 			pq->max <<= 1;
 			pq->nodes = (PQnode *)alloc->memrealloc( alloc->userData, pq->nodes,
-				(size_t)((pq->max + 1) * sizeof( pq->nodes[0] )));
+				(unsigned int)((pq->max + 1) * sizeof( pq->nodes[0] )));
 			if (pq->nodes == NULL) {
 				pq->nodes = saveNodes;	// restore ptr to free upon return
 				return INV_HANDLE;
 			}
 			pq->handles = (PQhandleElem *)alloc->memrealloc( alloc->userData, pq->handles,
-				(size_t) ((pq->max + 1) * sizeof( pq->handles[0] )));
+				(unsigned int) ((pq->max + 1) * sizeof( pq->handles[0] )));
 			if (pq->handles == NULL) {
 				pq->handles = saveHandles; // restore ptr to free upon return
 				return INV_HANDLE;
@@ -351,7 +351,7 @@ int pqInit( TESSalloc* alloc, PriorityQ *pq )
 	(pq->size * sizeof(pq->order[0])) );
 	*/
 	pq->order = (PQkey **)alloc->memalloc( alloc->userData,
-										  (size_t)((pq->size+1) * sizeof(pq->order[0])) );
+										  (unsigned int)((pq->size+1) * sizeof(pq->order[0])) );
 	/* the previous line is a patch to compensate for the fact that IBM */
 	/* machines return a null on a malloc of zero bytes (unlike SGI),   */
 	/* so we have to put in this defense to guard against a memory      */
@@ -438,7 +438,7 @@ PQhandle pqInsert( TESSalloc* alloc, PriorityQ *pq, PQkey keyNew )
 			// If the heap overflows, double its size.
 			pq->max <<= 1;
 			pq->keys = (PQkey *)alloc->memrealloc( alloc->userData, pq->keys,
-				(size_t)(pq->max * sizeof( pq->keys[0] )));
+				(unsigned int)(pq->max * sizeof( pq->keys[0] )));
 			if (pq->keys == NULL) {
 				pq->keys = saveKey;  // restore ptr to free upon return
 				return INV_HANDLE;

src/libtess2/sweep.c

@@ -428,9 +428,12 @@ static void VertexWeights( TESSvertex *isect, TESSvertex *org, TESSvertex *dst,
 }
 
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-parameter"
 static void GetIntersectData( TESStesselator *tess, TESSvertex *isect,
 							 TESSvertex *orgUp, TESSvertex *dstUp,
 							 TESSvertex *orgLo, TESSvertex *dstLo )
+#pragma GCC diagnostic pop
  /*
  * We've computed a new intersection point, now we need a "data" pointer
  * from the user so that we can refer to this new vertex in the

src/libtess2/tess.c

@@ -46,17 +46,6 @@
 
 #define Dot(u,v)	(u[0]*v[0] + u[1]*v[1] + u[2]*v[2])
 
-static void Normalize( TESSreal v[3] )
-{
-	TESSreal len = v[0]*v[0] + v[1]*v[1] + v[2]*v[2];
-
-	assert( len > 0 );
-	len = sqrtf( len );
-	v[0] /= len;
-	v[1] /= len;
-	v[2] /= len;
-}
-
 #define ABS(x)	((x) < 0 ? -(x) : (x))
 
 static int LongAxis( TESSreal v[3] )
@@ -436,6 +425,8 @@ int tessMeshSetWindingNumber( TESSmesh *mesh, int value,
 	return 1;
 }
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-parameter"
 void* heapAlloc( void* userData, unsigned int size )
 {
 	return malloc( size );
@@ -450,6 +441,7 @@ void heapFree( void* userData, void* ptr )
 {
 	free( ptr );
 }
+#pragma GCC diagnostic pop
 
 static TESSalloc defaulAlloc =
 {