re PR target/33785 (TARGET_C99_FUNCTIONS default wrong in tm.texi)

	PR target/33785
	* doc/tm.texi (TARGET_C99_FUNCTIONS): Fix description.

From-SVN: r144411

gcc/ChangeLog

+2009-02-24  Steve Ellcey  <sje@cup.hp.com>
+
+	PR target/33785
+	* doc/tm.texi (TARGET_C99_FUNCTIONS): Fix description.
+
 2009-02-24  Richard Guenther  <rguenther@suse.de>
 
 	PR debug/39285

gcc/doc/tm.texi

@@ -5228,9 +5228,9 @@ macro, a reasonable default is used.
 @defmac TARGET_C99_FUNCTIONS
 When this macro is nonzero, GCC will implicitly optimize @code{sin} calls into
 @code{sinf} and similarly for other functions defined by C99 standard.  The
-default is nonzero that should be proper value for most modern systems, however
-number of existing systems lacks support for these functions in the runtime so
-they needs this macro to be redefined to 0.
+default is zero because a number of existing systems lack support for these
+functions in their runtime so this macro needs to be redefined to one on
+systems that do support the C99 runtime.
 @end defmac
 
 @cindex sincos math function, implicit usage