re PR c/60988 ("transparent_union" doesn't appear in the gcc manual index)

	PR c/60988
	* doc/extend.texi: Add cindex for transparent_union.

From-SVN: r211396

gcc/ChangeLog

+2014-06-10  Marek Polacek  <polacek@redhat.com>
+
+	PR c/60988
+	* doc/extend.texi: Add cindex for transparent_union.
+
 2014-06-09  Thomas Preud'homme  <thomas.preudhomme@arm.com>
 
 	* tree-ssa-math-opts.c (find_bswap_or_nop_load): Check return value of

gcc/doc/extend.texi

@@ -5732,6 +5732,8 @@ You may only specify this attribute on the definition of an @code{enum},
 also define the enumerated type, structure or union.
 
 @item transparent_union
+@cindex @code{transparent_union} attribute
+
 This attribute, attached to a @code{union} type definition, indicates
 that any function parameter having that union type causes calls to that
 function to be treated in a special way.