Fix some warnings

cmake/CMakeLists.txt

@@ -413,7 +413,7 @@ IF(MSVC)
 		ENDIF()
 	ENDFOREACH()
 ElSE()
-    add_definitions(-Wall -Wextra)
+    add_definitions(-Wall -Wextra -Wno-maybe-uninitialized)
     if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
         add_definitions(-Wno-tautological-constant-out-of-range-compare)
     endif()

src/ifcgeom/IfcGeomIterator.h

@@ -155,8 +155,8 @@ namespace IfcGeom {
         Iterator(const IteratorSettings& settings, IfcParse::IfcFile* file, std::vector<IfcGeom::filter_t>& filters)
             : settings(settings)
             , ifc_file(file)
-            , owns_ifc_file(false)
             , filters_(filters)
+			, owns_ifc_file(false)
         {
             _initialize();
         }

src/ifcgeom/IfcGeomWires.cpp

@@ -128,7 +128,7 @@ namespace {
 			Handle(Geom_Curve) crv = BRep_Tool::Curve(e, _, __);
 			const bool is_line = crv->DynamicType() == STANDARD_TYPE(Geom_Line);
 			const bool is_circle = crv->DynamicType() == STANDARD_TYPE(Geom_Circle);
-			all_linear = all_linear && all_linear;
+			all_linear = all_linear && is_line;
 			single_circle = first && is_circle;
 		}
 
@@ -209,7 +209,7 @@ namespace {
 
 			double dist = p1.Distance(p2);
 
-			// Distance is within 2p, this is fine
+			// Distance is within tolerance, this is fine
 			if (dist < p_) {
 				mw_.Add(w1);
 				goto check;
@@ -403,8 +403,6 @@ bool IfcGeom::Kernel::convert(const IfcSchema::IfcCompositeCurve* l, TopoDS_Wire
 	BRepBuilderAPI_MakeWire w;
 	TopoDS_Vertex wire_first_vertex, wire_last_vertex, edge_first_vertex, edge_last_vertex;
 
-	const double precision_sq_2 = 2 * getValue(GV_PRECISION) * getValue(GV_PRECISION);
-
 	TopTools_ListIteratorOfListOfShape it(converted_segments);
 
 	IfcEntityList::ptr profile = l->entity->getInverse(IfcSchema::Type::IfcProfileDef, -1);