svn commit: r250472 - projects/flex-sf/contrib/flex

[Jung-uk Kim]

Author: jkim
Date: Fri May 10 19:13:56 2013
New Revision: 250472
URL: http://svnweb.freebsd.org/changeset/base/250472

Log:
  Allow YY_NO_UNPUT to disable unput() for backward compatibility.

Modified:
  projects/flex-sf/contrib/flex/flex.skl

Modified: projects/flex-sf/contrib/flex/flex.skl
==============================================================================
--- projects/flex-sf/contrib/flex/flex.skl	Fri May 10 19:09:31 2013	(r250471)
+++ projects/flex-sf/contrib/flex/flex.skl	Fri May 10 19:13:56 2013	(r250472)
@@ -1030,10 +1030,12 @@ extern int yywrap M4_YY_PARAMS( M4_YY_PR
 #endif
 
 %not-for-header
+#ifndef YY_NO_UNPUT
     m4_ifdef( [[M4_YY_NO_UNPUT]],,
     [[
     static void yyunput M4_YY_PARAMS( int c, char *buf_ptr  M4_YY_PROTO_LAST_ARG);
     ]])
+#endif
 %ok-for-header
 %endif
 
@@ -1808,6 +1810,7 @@ m4_ifdef( [[M4_YY_USES_REJECT]],
 
 
 %if-c-only
+#ifndef YY_NO_UNPUT
 m4_ifdef( [[M4_YY_NO_UNPUT]],,
 [[
     static void yyunput YYFARGS2( int,c, char *,yy_bp)
@@ -1861,6 +1864,7 @@ m4_ifdef( [[M4_YY_USE_LINENO]],
 }
 %if-c-only
 ]])
+#endif	/* ifndef YY_NO_UNPUT */
 %endif
 
 %if-c-only