Duncan Coutts wrote:
On Wed, 2008-12-10 at 11:19 -0800, John Meacham wrote:
I was wondering if anyone has gotten ghc to work with IMCROSS[1]. I'm Cross is a way to build native windows and mac osx apps on linux. quite convinient for making distribution packages for those other platforms or if you want to use linux's toolset during your build.
basically, IMCROSS installs a couple new gccs with names like /usr/local/bin/i386-mingw-gcc and so forth, is there some way to get ghc to use said non-native compiler as its back end? It seems that ghc will also need to build the libraries with different #define's as well to reflect the target windows or mac environment.
It sounds like you would need to set ghc up as a cross-compiler. I'm told that this there is a fair bit of work required to get ghc to support cross-compilation. I expect Ian or Simon could provide more details on what would need doing if you're interested in pursuing it.
Right - the stage 1 compiler has to be a cross-compiler, running on the host system and generating binaries for the target system. Bits of the infrastructure are in place (i.e. we make some attempt to use the right _HOST_ARCH vs. TARGET_ARCH #defines), but we've never actually done real cross-compilation with GHC so I imagine there will be various things to fix. The build system probably assumes that host==target in lots of places. Cheers, Simon