Avoid undefined out-of-range conversions from double to unsigned char

Change-Id: I7cf4af81d477865aa0a93c8aa071a8785677c572

external/lpsolve/UnpackedTarball_lpsolve.mk

@@ -26,6 +26,7 @@ $(eval $(call gb_UnpackedTarball_add_patches,lpsolve,\
 	external/lpsolve/lp_solve-aix.patch \
 	external/lpsolve/lp_solve-fixed-warn.patch \
 	external/lpsolve/lp_solve_5.5.patch \
+	external/lpsolve/lpsolve-ubsan.patch.0 \
 ))
 
 $(eval $(call gb_UnpackedTarball_add_file,lpsolve,lpsolve55/ccc.static,external/lpsolve/ccc.static))

external/lpsolve/lpsolve-ubsan.patch.0

+--- lp_pricePSE.c
++++ lp_pricePSE.c
+@@ -145,7 +147,7 @@
+ 
+   /* Store the active/current pricing type */
+   if(isdual == AUTOMATIC)
+-    isdual = (MYBOOL) lp->edgeVector[0];
++    isdual = lp->edgeVector[0] != 0.0;
+   else
+     lp->edgeVector[0] = isdual;
+