compiler fix part 1

[[Split portion of a mixed commit.]]

source/blender/bmesh/intern/bmesh_queries.c

@@ -115,7 +115,7 @@ int BM_Verts_In_Face(BMesh *bm, BMFace *f, BMVert **varr, int len)
 	do{
 		if(BMO_TestFlag(bm, curloop->v, BM_OVERLAP)) count++;
 		curloop = ((BMLoop*)(curloop->head.next));
-	} while(curloop = ((BMLoop*)(curloop->head.next)));
+	} while(curloop != f->loopbase);
 
 	for(i=0; i < len; i++) BMO_ClearFlag(bm, varr[i], BM_OVERLAP);
 

source/blender/bmesh/intern/bmesh_walkers.c

@@ -208,7 +208,6 @@ static void *BMW_walk(BMWalker *walker)
 	while(walker->currentstate){
 		current = walker->step(walker);
 		if(current) return current;
-		else BMW_popstate(walker);
 	}
 	return NULL;
 }

source/blender/bmesh/operators/dissolveops.c

@@ -97,11 +97,19 @@ void dissolvefaces_exec(BMesh *bm, BMOperator *op)
 		
 		f= BM_Make_Ngon(bm, edges[0]->v1, edges[0]->v2,  edges, j, 0);
 		
+		if (!f) continue;
+
+		/*
+		NOTE: sadly, make ngon's overlap checking option
+		      crashes ;/
+		make ngon can fail, if there was already an existing face.
+		this is desired behaviour, I think, so we'll just silently
+		ignore any possible other error cases.
 		if (!f) {
-			/*raise error*/
+			//raise error
 			BMO_RaiseError(bm, op, BMERR_DISSOLVEFACES_FAILED, NULL);
 			goto cleanup;
-		}
+		}*/
 		
 		BMO_SetFlag(bm, f, FACE_NEW);