Joel Reymont wrote:
I get a lot of errors like this:
utils/Panic.lhs:27:0:
Failed to load interface for `Config':
Bad interface file: stage1/main/Config.hi
mismatched interface file versions: expected 6050, found
390518464
Do you guys always clean after a pull or is there an easy way to get a
list of *.hi (and *.o) files to delete?
The party line is that after a 'darcs pull' you should start again from scratch.
That is,
- make maintainer-clean
- autoreconf
- configure
- make
If you Know What You Are Doing you might be able to avoid being this drastic, or
you can just chance it and try cleaning if things go wrong.
The main reason for this is that the build system doesn't express all the
dependencies in the tree; for example, it doesn't know that every .hi file in
the libraries implicitly depends on every .hs file in the compiler, because the
interface file format is dependent on the compiler. Getting all these
dependencies just right would be likely to lead to a lot of unnecessary
recompilation while we're developing, so it's a compromise. If you know that
the interface file format has changed, you have to make clean in libraries, the
build system won't do it for you.
Cheers,
Simon
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