After upgrading to bison 2.6, the following two tests fail (with flex 2.5.35):
I'm attaching the file test-bison-yllval/OUTPUT.
2.6 seems to have dropped support for #define YYPARSE_PARAM, in favor of %parse-param. I rewrote the two failing tests to use the preferred style. I don't seem to be able to figure out how to attach a patch to this tracker, so I'll just leave this here: http://pkgs.fedoraproject.org/gitweb/?p=flex.git;a=blob_plain;f=flex-2.5.36-bison-2.6.1.patch
I'll read up on this.
There's a philosophical issue of how compatible flex needs to be for various bison versions.
Thanks for reporting this. Good catch.
The submitted patch has been applied to the flex codebase and will be included in the next flex release.