I have been looking into reports that GHDL experienced failures building the VHDL-2002 versions of the OSVVM packages. A couple of issues in GHDL have been identified and a patch is now available to correct them.
The patch applies to GHDL sources (SVN revision 150) available from
The patch itself is attached to the bugtracker report at
and the report gives more details.
Further discussion in this “ghdl-discuss” thread:
GHDL in this form has been built with gcc (+gnat) 4.7.2 and so far only tested running OSVVM with the Demo_Rand.vhd test. (Which itself needed a couple of edits : the VHDL-2008 “system.env.stop” subprogram is not available; and it needs the library/use clauses for the “ieee.proposed” additions)
So OpenSource VHDL Verification is now possible with an Open Source simulator!