- added custom math routines for reliability.

src/nodebuild_utility.cpp

@@ -50,6 +50,7 @@
 #include "i_system.h"
 #include "po_man.h"
 #include "r_state.h"
+#include "math/cmath.h"
 
 static const int PO_LINE_START = 1;
 static const int PO_LINE_EXPLICIT = 5;
@@ -74,7 +75,7 @@ angle_t FNodeBuilder::PointToAngle (fixed_t x, fixed_t y)
 	// See https://gcc.gnu.org/wiki/Math_Optimization_Flags for details
 	long double ang = atan2l (double(y), double(x));
 #else // !__APPLE__ || __llvm__
-	double ang = atan2 (double(y), double(x));
+	double ang = g_atan2 (double(y), double(x));
 #endif // __APPLE__ && !__llvm__
 	// Convert to signed first since negative double to unsigned is undefined.
 	return angle_t(int(ang * rad2bam)) << 1;