re PR driver/9822 (The "%c" spec option produces: gcc: spec failure: unrecognized spec option 'c')

	PR driver/9822
	* doc/invoke.texi (Spec Files): Remove documentation of %c.

From-SVN: r81553

gcc/ChangeLog

+2004-05-05  Ian Lance Taylor  <ian@wasabisystems.com>
+
+	PR driver/9822
+	* doc/invoke.texi (Spec Files): Remove documentation of %c.
+
 2004-05-05  Chris Demetriou  <cgd@broadcom.com>
 
 	* config/mips/mips.md: Update the msub define_split for new mflo/mfhi

gcc/doc/invoke.texi

@@ -5684,13 +5684,6 @@ the last object files that will be passed to the linker.
 Process the @code{cpp} spec.  This is used to construct the arguments
 to be passed to the C preprocessor.
 
-@item %c
-Process the @code{signed_char} spec.  This is intended to be used
-to tell cpp whether a char is signed.  It typically has the definition:
-@smallexample
-%@{funsigned-char:-D__CHAR_UNSIGNED__@}
-@end smallexample
-
 @item %1
 Process the @code{cc1} spec.  This is used to construct the options to be
 passed to the actual C compiler (@samp{cc1}).