Fix some porting glitches found by Nelson H. F. Beebe.

[bison.git] / doc / bison.texinfo

diff --git a/doc/bison.texinfo b/doc/bison.texinfo
index 752d09476d2522a204c0c2bec0d89537098934e4..5ff8f8638f38c15bb5accec00eaf02855d1f20d8 100644 (file)
--- a/doc/bison.texinfo
+++ b/doc/bison.texinfo
@@ -3802,10 +3802,15 @@ As an extension to @acronym{POSIX}, a tag is allowed after the
 @end group
 @end example
 
+@noindent
 specifies the union tag @code{value}, so the corresponding C type is
 @code{union value}.  If you do not specify a tag, it defaults to
 @code{YYSTYPE}.
 
+As another extension to @acronym{POSIX}, you may specify multiple
+@code{%union} declarations; their contents are concatenated.  However,
+only the first @code{%union} declaration can specify a tag.
+
 Note that, unlike making a @code{union} declaration in C, you need not write
 a semicolon after the closing brace.