Matthias Kilian wrote:
Hi,
for an unregisterised ghc-6.8.2 (or newer), are the .hi files dependent (except for the 32 vs. 64 bit word size)? I had a quick look at the stuff in compiler/iface, but the only MD part I found was that 32/64 bit difference.
The word size is probably the only dependency, but there are many reasons that you can't just take the .hc/.hi files generated by an unregisterised build on one machine and expect them to work on another machine. First, you have to watch out for conditional compilation in the original Haskell source file. For example, if the .hs file contains something like #ifdef mingw32_HOST_OS, then the .hc and .hi files will both be Windows-only. There are certainly many instances of this in the libraries right now. Another problem is the configuration information that gets into the build via the autoconf scripts. Things like the size of C types in Foreign.C.Types, or the errno values in Foreign.C.Error might be different on the target machine. I hope I've managed to understand your question correctly... if not please ask again! Cheers, Simon