Mercury and toy compiler.

[Tim Josling]

> "The C side of my changes are a derivative work of Tim Josling's `toy'
GCC front-end.  The Mercury side of my changes are in a few parts
a
derivative work based on existing code in the Mercury compiler"
quoth Fergus Henderson.

Wonderful as the toy language is, I cannot claim credit. Richard
Kenner wrote it I believe. I assume he has an FSF copyright
assignment and employer disclaimer, as do I (under my full name
Timothy Edward Shilson-Josling which I am currently changing to
Tim Josling).

Tim Josling