Hi Ben, Updating the new build tool is e right thing to do, long term, but it unfortunate doesn't help with my objective of compiling old versions of ghc ... but there is a quick here that I could exploit. Since I'm building for the same platform, bug just using different versions of the operating system, I think I can create the C files in an old Debian inside docker and use them in the more modern host machine to build the old ghc.
On Fri, 31 Aug 2018, 15:36 Ben Gamari, <b...@smart-cactus.org> wrote: > Sam Halliday <sam.halli...@gmail.com> writes: > > > Hi Ben, > > > > This would definitely help. I could use a docker image of a really old > > OS that has old ghc binaries available, to generate the .c for that > > old version of GHC (e.g. v 7.0 or something). Then I could use those > > files to bootstrap a ghc 7.0 on my machine, and from there every > > version of ghc since. It would make a lot of sense for the > > "unregistered" sources to be made available as an optional download > > alongside the source code, if haskell.org were open to that > > possibility. > > > This is a very interesting idea. The build system currently isn't > really setup in a way to make this possible, but this could likely be > changed in our new build system, Hadrian. Also, I suspect this would > require some adjustments to the C code generator, which very likely has > some platform dependence in its output. > > Perhaps you'd like to try picking up this task? > > Cheers, > > - Ben >
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