[PATCH for Dlang support] d: remove the default prefix for

 SymbolKind's enum elements

* data/skeletons/d.m4: Remove the default prefix.
* doc/bison.text: Document it.
---
 data/skeletons/d.m4 | 2 --
 doc/bison.texi      | 4 ++--
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/data/skeletons/d.m4 b/data/skeletons/d.m4
index fb883df8..704de450 100644
--- a/data/skeletons/d.m4
+++ b/data/skeletons/d.m4
@@ -197,8 +197,6 @@ b4_symbol_foreach([b4_token_enum])dnl
 ## Symbol kinds.  ##
 ## -------------- ##

-b4_percent_define_default([[api.symbol.prefix]], [[S_]])
-
 # b4_symbol_kind(NUM)
 # -------------------
 m4_define([b4_symbol_kind],
diff --git a/doc/bison.texi b/doc/bison.texi
index 7e4b9aa7..4903855c 100644
--- a/doc/bison.texi
+++ b/doc/bison.texi
@@ -6420,7 +6420,7 @@ Any non empty string.  Must be a valid identifier in
the target language
 (typically a non empty sequence of letters, underscores, and ---not at the
 beginning--- digits).

-The empty prefix is invalid:
+The empty prefix is (generally) invalid:
 @itemize
 @item
 in C it would create collision with the @code{YYERROR} macro, and
@@ -6436,7 +6436,7 @@ with other members of the @code{SymbolKind} class.


 @item Default Value:
-@code{YYSYMBOL_} in C.  @code{S_} in C++, D and Java.
+@code{YYSYMBOL_} in C.  @code{S_} in C++ and Java.  The default prefix is
removed from D.
 @item History:
 introduced in Bison 3.6.
 @end itemize
-- 
2.17.1