From 17a10208a7f2faf38cbf93f6d822ff7aa31b12b2 Mon Sep 17 00:00:00 2001
From: cristy <urban-warrior@git.imagemagick.org>
Date: Wed, 2 Nov 2011 19:17:04 +0000
Subject: [PATCH]

---
 MagickCore/fx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MagickCore/fx.c b/MagickCore/fx.c
index af004125d..1d76ff8b3 100644
--- a/MagickCore/fx.c
+++ b/MagickCore/fx.c
@@ -2633,7 +2633,7 @@ static MagickRealType FxEvaluateSubexpression(FxInfo *fx_info,
         {
           alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+5,beta,
             exception);
-          return((MagickRealType) !!isnan(alpha));
+          return((MagickRealType) !!isnan((double) alpha));
         }
       if (LocaleCompare(expression,"i") == 0)
         return(FxGetSymbol(fx_info,channel,x,y,expression,exception));
-- 
2.40.0