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Date: Mon, 20 Jan 2003 00:00:28 -0600
From: Brian R. Gaeke <gaeke@uiuc.edu>
Subject: windows vs. llvm
If you're interested, here are some of the major problems compiling LLVM
under Cygwin and/or Mingw.
1. Cygwin doesn't have <inttypes.h> or <stdint.h>, so all the INT*_MAX
symbols and standard int*_t types are off in limbo somewhere. Mingw has
<stdint.h>, but Cygwin doesn't like it.
2. Mingw doesn't have <dlfcn.h> (because Windows doesn't have it.)
3. SA_SIGINFO and friends are not around; only signal() seems to work.
4. Relink, aka ld -r, doesn't work (probably an ld bug); you need
DONT_BUILD_RELINKED. This breaks all the tools makefiles; you just need to
change them to have .a's.
5. There isn't a <values.h>.
6. There isn't a mallinfo() (or, at least, it's documented, but it doesn't seem
to link).
7. The version of Bison that cygwin (and newer Linux versions) comes with
does not like = signs in rules. Burg's gram.yc source file uses them. I think
you can just take them out.
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