* doc/bison.texinfo (Calc++ Scanner): The flex behavior is an

[bison.git] / doc / bison.texinfo

diff --git a/doc/bison.texinfo b/doc/bison.texinfo
index a0c9402afaf21b230d4a3c48d11a0fce0608cb46..763320bddba0c4b3ed82199f1ed1dc7384aeb44c 100644 (file)
--- a/doc/bison.texinfo
+++ b/doc/bison.texinfo
@@ -7583,10 +7583,14 @@ parser's to get the set of defined tokens.
 # include <string>
 # include "calc++-driver.hh"
 # include "calc++-parser.hh"
-/* Work around a bug in flex 2.5.31.  See Debian bug 333231
-  <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=333231>.  */
+
+/* Work around an incompatibility in flex (at least versions
+   2.5.31 through 2.5.33): it generates code that does
+   not conform to C89.  See Debian bug 333231
+   <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=333231>.  */
 # undef yywrap
 # define yywrap() 1
+
 /* By default yylex returns int, we use token_type.
    Unfortunately yyterminate by default returns 0, which is
    not of token_type.  */