[m-users.] Compiling Mercury 14.01 on 64 bit Cygwin?

[Peter C. Chapin]

Hello!

I'm trying to compile Mercury from source in my 64 bit Cygwin
environment running on Windows 7. I ran configure without any options
but when I start the build I rather quickly get this:

/usr/local/src/mercury-srcdist-14.01/boehm_gc/../scripts/mgnuc --grade
hlc.gc.pregen --no-ansi --no-check --no-mercury-stdlib-dir -I./include
-I./libatomic_ops-install/include -DNO_EXECUTE_PERMISSION
-DLARGE_CONFIG     -DNO_DEBUGGING   -c -o alloc.o alloc.c
In file included from ./include/private/gc_priv.h:94:0,
                 from alloc.c:18:
./include/private/gcconfig.h:1096:7: error: #error This should be
handled as X86_64
 #     error This should be handled as X86_64
       ^
./include/private/gcconfig.h:2416:3: error: #error --> undefined ALIGNMENT
 # error --> undefined ALIGNMENT
   ^
<builtin>: recipe for target 'alloc.o' failed
make[3]: *** [alloc.o] Error 1

I'm guessing my problem is that I'm using the 64 bit Cygwin environment
rather than the 32 bit environment. Is there a straightforward way to
compile Mercury successfully on this platform or is it just unsupported?
My gcc version is 4.8.3.

Thanks,
Peter

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