diff --git a/include/hack.h b/include/hack.h
index 49f4915dd..9bf619c8f 100644
--- a/include/hack.h
+++ b/include/hack.h
@@ -319,4 +319,14 @@ NEARDATA extern coord bhitpos;	/* place where throw or zap hits or stops */
 # define STATIC_PTR static
 #endif
 
+/* The function argument to qsort() requires a particular
+ * calling convention under WINCE which is not the default
+ * in that environment.
+ */
+#if defined(WIN_CE)
+# define CFDECLSPEC __cdecl
+#else
+# define CFDECLSPEC
+#endif
+ 
 #endif /* HACK_H */
diff --git a/src/mklev.c b/src/mklev.c
index dfcc739be..de12c110d 100644
--- a/src/mklev.c
+++ b/src/mklev.c
@@ -35,7 +35,7 @@ STATIC_DCL boolean FDECL(place_niche,(struct mkroom *,int*,int*,int*));
 STATIC_DCL void FDECL(makeniche,(int));
 STATIC_DCL void NDECL(make_niches);
 
-STATIC_PTR int FDECL(do_comp,(const genericptr,const genericptr));
+STATIC_PTR int FDECL( CFDECLSPEC do_comp,(const genericptr,const genericptr));
 
 STATIC_DCL void FDECL(dosdoor,(XCHAR_P,XCHAR_P,struct mkroom *,int));
 STATIC_DCL void FDECL(join,(int,int,BOOLEAN_P));
@@ -56,7 +56,7 @@ static boolean made_branch;	/* used only during level creation */
 /* Args must be (const genericptr) so that qsort will always be happy. */
 
 STATIC_PTR int
-do_comp(vx,vy)
+CFDECLSPEC do_comp(vx,vy)
 const genericptr vx;
 const genericptr vy;
 {