Revamp OChangeLog before merging with ChangeLog.

[bison.git] / doc / bison.1

diff --git a/doc/bison.1 b/doc/bison.1
index 0cd949ee422e0c0e6b3e43d8fca1b823998293cb..471952d93242907abfdf59e0df836135beb63627 100644 (file)
--- a/doc/bison.1
+++ b/doc/bison.1
@@ -320,14 +320,21 @@ bison \-y $*
 .ft R
 .sp
 .RE
-.PP
-The long-named options can be introduced with `+' as well as `\-\-',
-for compatibility with previous releases.  Eventually support for `+'
-will be removed, because it is incompatible with the POSIX.2 standard.
 .SH FILES
 /usr/local/lib/bison.simple    simple parser
 .br
 /usr/local/lib/bison.hairy     complicated parser
+.SH "ENVIRONMENT VARIABLES"
+.TP
+.SM BISON_SIMPLE
+If this is set, it specifies the location in which the
+.B bison.simple
+parser can be found.
+.TP
+.SM BISON_HAIRY
+If this is set, it specifies the location in which the
+.B bison.hairy
+parser can be found.
 .SH SEE ALSO
 .IR yacc (1)
 .br