--- grib_api-1.9.9.orig/src/grib_ieeefloat.c	2009-11-24 11:51:55.000000000 +0000
+++ grib_api-1.9.9/src/grib_ieeefloat.c	2011-03-08 17:36:39.000000000 +0000
@@ -336,12 +336,13 @@
 #if IEEE_LE
   unsigned char s[8]={0,};
   unsigned char* buf=(unsigned char*)&x;
+  size_t nb = sizeof(unsigned long);
   int j=0;
   for (j=7;j>=0;j--)
     s[j]= *(buf++);
-  memcpy(&lval,s,8);
+  memcpy(&lval,s,nb);
 #elif IEEE_BE
-  memcpy(&lval,&x,8);
+  memcpy(&lval,&x,nb);
 #endif
   return lval;
 }