--- mozilla-2.0.orig/content/canvas/src/nsCanvasRenderingContext2D.cpp
+++ mozilla-2.0/content/canvas/src/nsCanvasRenderingContext2D.cpp
@@ -159,7 +159,7 @@
     // NOTE: '!!' casts an int to bool without spamming MSVC warning C4800.
     return !!_finite(d);
 #else
-    return finite(d);
+    return isfinite(d);
 #endif
 }