8086092: More palette improvements

Reviewed-by: bae, serb
diff --git a/jdk/make/lib/Awt2dLibraries.gmk b/jdk/make/lib/Awt2dLibraries.gmk
index e4ded78..ac7da1c 100644
--- a/jdk/make/lib/Awt2dLibraries.gmk
+++ b/jdk/make/lib/Awt2dLibraries.gmk
@@ -674,6 +674,7 @@
     LANG := C, \
     OPTIMIZATION := HIGHEST, \
     CFLAGS := $(filter-out -xc99=%none, $(CFLAGS_JDKLIB)) \
+        -DCMS_DONT_USE_FAST_FLOOR \
         $(SHARED_LIBRARY_FLAGS) \
         -I$(JDK_TOPDIR)/src/share/native/sun/java2d \
         -I$(JDK_TOPDIR)/src/share/native/sun/awt/debug, \