2009-05-22  Andreas Schwab  <schwab@linux-m68k.org>

	* sysdeps/ieee754/ldbl-128ibm/s_sinl.c: Set errno for ┬▒Inf.
	* sysdeps/ieee754/ldbl-128ibm/s_cosl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_tanl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_expm1l.c: Set errno for overflow.

--- libc/sysdeps/ieee754/ldbl-128ibm/s_cosl.c
+++ libc/sysdeps/ieee754/ldbl-128ibm/s_cosl.c
@@ -44,6 +44,7 @@
  *	TRIG(x) returns trig(x) nearly rounded
  */
 
+#include <errno.h>
 #include "math.h"
 #include "math_private.h"
 #include <math_ldbl_opt.h>
@@ -67,9 +68,11 @@
 	  return __kernel_cosl(x,z);
 
     /* cos(Inf or NaN) is NaN */
-	else if (ix>=0x7ff0000000000000LL)
+	else if (ix>=0x7ff0000000000000LL) {
+	    if (ix == 0x7ff0000000000000LL)
+		__set_errno (EDOM);
 	    return x-x;
-
+	}
     /* argument reduction needed */
 	else {
 	    n = __ieee754_rem_pio2l(x,y);
--- libc/sysdeps/ieee754/ldbl-128ibm/s_expm1l.c
+++ libc/sysdeps/ieee754/ldbl-128ibm/s_expm1l.c
@@ -51,6 +51,7 @@
     License along with this library; if not, write to the Free Software
     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA */
 
+#include <errno.h>
 #include "math.h"
 #include "math_private.h"
 #include <math_ldbl_opt.h>
@@ -120,7 +121,10 @@ __expm1l (long double x)
 
   /* Overflow.  */
   if (x > maxlog)
-    return (big * big);
+    {
+      __set_errno (ERANGE);
+      return (big * big);
+    }
 
   /* Minimum value.  */
   if (x < minarg)
--- libc/sysdeps/ieee754/ldbl-128ibm/s_sinl.c
+++ libc/sysdeps/ieee754/ldbl-128ibm/s_sinl.c
@@ -44,6 +44,7 @@
  *	TRIG(x) returns trig(x) nearly rounded
  */
 
+#include <errno.h>
 #include "math.h"
 #include "math_private.h"
 #include <math_ldbl_opt.h>
@@ -67,8 +68,11 @@
 	  return __kernel_sinl(x,z,0);
 
     /* sin(Inf or NaN) is NaN */
-	else if (ix>=0x7ff0000000000000LL) return x-x;
-
+	else if (ix>=0x7ff0000000000000LL) {
+	    if (ix == 0x7ff0000000000000LL)
+		__set_errno (EDOM);
+	    return x-x;
+	}
     /* argument reduction needed */
 	else {
 	    n = __ieee754_rem_pio2l(x,y);
--- libc/sysdeps/ieee754/ldbl-128ibm/s_tanl.c
+++ libc/sysdeps/ieee754/ldbl-128ibm/s_tanl.c
@@ -44,6 +44,7 @@
  *	TRIG(x) returns trig(x) nearly rounded
  */
 
+#include <errno.h>
 #include "math.h"
 #include "math_private.h"
 #include <math_ldbl_opt.h>
@@ -66,8 +67,11 @@
 	if(ix <= 0x3fe921fb54442d10LL) return __kernel_tanl(x,z,1);
 
     /* tanl(Inf or NaN) is NaN */
-	else if (ix>=0x7ff0000000000000LL) return x-x;		/* NaN */
-
+	else if (ix>=0x7ff0000000000000LL) {
+	    if (ix == 0x7ff0000000000000LL)
+		__set_errno (EDOM);
+	    return x-x;		/* NaN */
+	}
     /* argument reduction needed */
 	else {
 	    n = __ieee754_rem_pio2l(x,y);