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Avoid unnecessary recompilation after ./configure (helps #3228)
authorSimon Marlow <marlowsd@gmail.com>
Tue, 7 Jul 2009 08:50:40 +0000 (08:50 +0000)
committerSimon Marlow <marlowsd@gmail.com>
Tue, 7 Jul 2009 08:50:40 +0000 (08:50 +0000)
We cache the old versions of files generated by configure, so that if
configure touches the file without changing it, we can detect that and
restore the timestamp.


No differences found
Glasgow Haskell Compiler with heterogeneous metaprogramming (generalized arrows and modal types)