--- kdeedu-3.5.8/kstars/kstars/fitsviewer.cpp.orig	2008-01-26 00:11:52.929072225 +0530
+++ kdeedu-3.5.8/kstars/kstars/fitsviewer.cpp	2008-01-26 00:12:06.098511536 +0530
@@ -336,7 +336,7 @@
     {
     FITS_GETBITPIX32(tempData, pixval_32);
     //pixval_32 = ntohl(pixval_32);
-    if (isnan(pixval_32)) pixval_32 = 0;
+    if (isnan((float)pixval_32)) pixval_32 = 0;
     buffer[i] = pixval_32;
     tempData+=4;
    }