[m-dev.] lcc bugs

[Fergus Henderson]

Lots of the test cases are failing when using lcc as the C compiler.
These include lots of failures (starting with tests/debug/*) in grade
`none' and `none.prof'.  After many hours of debugging, I tracked one
of these down.  It turned out to be due to lcc having miscompiled the
code in the `MR_save_context()' macro called from mercury_runtime_init();
the code that lcc generates leaves the Mercury heap pointer invalid,
and things go downhill from there :-(

Also lcc gets an internal error compiling the C code for the new
hash_table module that Ralph added recently.

I've reported both of these bugs via the official lcc bug report
channel, the newsgroup comp.compilers.lcc.

-- 
Fergus Henderson <fjh at cs.mu.oz.au>  |  "I have always known that the pursuit
                                    |  of excellence is a lethal habit"
WWW: <http://www.cs.mu.oz.au/~fjh>  |     -- the last words of T. S. Garp.
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