re PR bootstrap/47827 (gcc fails to bootstrap on i386-pc-solaris2.10)

	PR bootstrap/47827
	* printf/quadmath-printf.h (NAN): Redefine to __builtin_nanf ("").

From-SVN: r170346

libquadmath/ChangeLog

+2011-02-20  Jakub Jelinek  <jakub@redhat.com>
+
+	PR bootstrap/47827
+	* printf/quadmath-printf.h (NAN): Redefine to __builtin_nanf ("").
+
 2011-02-17  Jakub Jelinek  <jakub@redhat.com>
 
 	* libquadmath.texi (FLT128_DIG, FLT128_MIN_10_EXP,

libquadmath/printf/quadmath-printf.h

@@ -181,3 +181,6 @@ __quadmath_do_putc (struct __quadmath_printf_file *fp, int wide,
 
 #undef _itoa
 #define _itoa __quadmath_itoa
+
+#undef NAN
+#define NAN __builtin_nanf ("")