[Template-haskell] RE: Templates in ghc-6.0 & --make

[Simon Peyton-Jones]

[redirecting to template Haskell.  Are you on that list, Christoph?]


Excellent point below.  The dependency tracker assumes that if the type
of an imported thing is unchanged, you don't need to recompile.  But
here it's a change in the *value* of an imported thing that should force
recompilation.

Sigh.  Don't hold your breath for a fix!

Simon

| -----Original Message-----
| From: glasgow-haskell-bugs-admin@haskell.org
[mailto:glasgow-haskell-bugs-admin@haskell.org] On
| Behalf Of Ch. A. Herrmann
| Sent: 05 June 2003 12:21
| To: glasgow-haskell-bugs@haskell.org
| Subject: Templates in ghc-6.0 & --make
|=20
| Hi,
|=20
| first, many thanks to the implementors
| for releasing Template Haskell.
|=20
| A little flaw which can be observed with the
| example Printf/Main from the web users guide.
|=20
| Changing in "Printf.hs" the parse function
| to deliver a different format is not
| recognized by the dependency tracker of
|    ghc --make
| causing Main.hs to be skipped in the compilation,
| but metaprogramming is supposed to change the
| code of Main.hs.
|=20
| Many thanks in advance
| --
|  Dr. Christoph Herrmann
|  Teaching and Research Assistant
|  University of Passau, Germany
|  http://www.fmi.uni-passau.de/~herrmann
|=20
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