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diff --git a/sysdeps/libm-ieee754/s_ceill.c b/sysdeps/libm-ieee754/s_ceill.c
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+/* s_ceill.c -- long double version of s_ceil.c.
+ * Conversion to long double by Ulrich Drepper,
+ * Cygnus Support, drepper@cygnus.com.
+ */
+
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: $";
+#endif
+
+/*
+ * ceill(x)
+ * Return x rounded toward -inf to integral value
+ * Method:
+ * Bit twiddling.
+ * Exception:
+ * Inexact flag raised if x not equal to ceil(x).
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+static const long double huge = 1.0e4930;
+#else
+static long double huge = 1.0e4930;
+#endif
+
+#ifdef __STDC__
+ long double __ceill(long double x)
+#else
+ long double __ceill(x)
+ long double x;
+#endif
+{
+ int32_t i1,j0;
+ u_int32_t i,j,se,i0,sx;
+ GET_LDOUBLE_WORDS(se,i0,i1,x);
+ sx = (se>>15)&1;
+ j0 = (se&0x7fff)-0x3fff;
+ if(j0<32) {
+ if(j0<0) { /* raise inexact if x != 0 */
+ if(huge+x>0.0) {/* return 0*sign(x) if |x|<1 */
+ if(sx) {es=0x8000;i0=0;i1=0;}
+ else if((i0|i1)!=0) { es=0x3fff;i0=0;i1=0;}
+ }
+ } else {
+ i = (0xffffffff)>>j0;
+ if(((i0&i)|i1)==0) return x; /* x is integral */
+ if(huge+x>0.0) { /* raise inexact flag */
+ if(sx==0) {
+ if (j0>0) i0 += (0x80000000)>>(j0-1);
+ else ++se;
+ }
+ i0 &= (~i); i1=0;
+ }
+ }
+ } else if (j0>63) {
+ if(j0==0x4000) return x+x; /* inf or NaN */
+ else return x; /* x is integral */
+ } else {
+ i = ((u_int32_t)(0xffffffff))>>(j0-32);
+ if((i1&i)==0) return x; /* x is integral */
+ if(huge+x>0.0) { /* raise inexact flag */
+ if(sx==0) {
+ if(j0==32) i0+=1;
+ else {
+ j = i1 + (1<<(64-j0));
+ if(j<i1) i0+=1; /* got a carry */
+ i1 = j;
+ }
+ }
+ i1 &= (~i);
+ }
+ }
+ SET_LDOUBLE_WORDS(x,se,i0,i1);
+ return x;
+}
+weak_alias (__ceill, ceill)