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2. Cross-compilation

Purpose: being able to run ocaml on one host platform and produce native code for a different target platform.

This should work even when the size of words differs between the host and the target platform.

Steps:

• Unifying Unix and Windows build systems (Work In Progress)
• Replacing the hand-written configure script by an autoconf script that works for all the platforms and has support for the concepts of host and target architectures
• (optional) Improving the build system itself: including sub-makefiles rather than calling make recursively, to let ``make'' see all the dependencies and thus make parallel builds more efficient
• Improve distinction between code for the host system and code for the target system in the compiler itself (32-bits host and 64-bits target seems the most difficult combination)