https://bugs.gentoo.org/859820

dynFinish is declared as double, but always used as int (actually Boolean).

--- a/dynPenOp.c
+++ b/dynPenOp.c
@@ -35,7 +35,8 @@
 
 #define XTIMEOUT 20
 
-double dynWidth = 10, dynMass = 600, dynDrag = 15, dynFinish = 0;
+double dynWidth = 10, dynMass = 600, dynDrag = 15;
+Boolean dynFinish = 0;
 
 typedef struct {
 	double	startx, starty;
--- a/ops.h
+++ b/ops.h
@@ -26,7 +26,7 @@
 extern double tickSize, tickAngle;
 extern double brushOpacity;
 extern double dynWidth, dynMass, dynDrag;
-extern int dynFinish;
+extern Boolean dynFinish;
 extern int sprayRadius, sprayDensity, sprayRate;
 extern int boxSize;
 extern double boxRatio;