tm.texi (CASE_VECTOR_PC_RELATIVE): Mention that the macro need not be defined if...

	* doc/tm.texi (CASE_VECTOR_PC_RELATIVE): Mention that the
	macro need not be defined if jump-tables should contain
	relative addresses only when -fPIC or -fPIC is in effect.

From-SVN: r76350

gcc/ChangeLog

+2004-01-22  Kazu Hirata  <kazu@cs.umass.edu>
+
+	* doc/tm.texi (CASE_VECTOR_PC_RELATIVE): Mention that the
+	macro need not be defined if jump-tables should contain
+	relative addresses only when -fPIC or -fPIC is in effect.
+
 2004-01-22  Jan Hubicka  <jh@suse.cz>
 
 	* alias.c (reg_base_value): Turn into varray.

gcc/doc/tm.texi

@@ -8485,8 +8485,10 @@ flags can be updated.
 
 @defmac CASE_VECTOR_PC_RELATIVE
 Define this macro to be a C expression to indicate when jump-tables
-should contain relative addresses.  If jump-tables never contain
-relative addresses, then you need not define this macro.
+should contain relative addresses.  You need not define this macro if
+jump-tables never contain relative addresses, or jump-tables should
+contain relative addresses only when @option{-fPIC} or @option{-fPIC}
+is in effect.
 @end defmac
 
 @defmac CASE_DROPS_THROUGH