Log message:
Honor pkgsrc CFLAGS in all configs, not just some.

Log message:
Store brand new configs in ${FILESDIR}, not as patches.

Log message:
Remove leftover file. This is not used, which is good because it's
also out of date.

Log message:
Don't pass FILESDIR into the build; it isn't used and isn't appropriate.

Log message:
Honor the pkgsrc configure shell instead of using /bin/sh, as on some
platforms /bin/sh gets one something uselessly broken.

Also, don't set MAKE to Solaris's make on Solaris; while this might be
necessary building standalone, in pkgsrc it's foolish.

Log message:
Use BUILD_ENV properly.

Log message:
Use SUBST instead of manual seddery.

Log message:
Generate the base/ copy of the runtime from the src/ copy after
patching, instead of extracting twice.

Log message:
Remove duplicate patches. Patch only the src/ copy of the runtime.

Instead of extracting the runtime twice for src/ and base/ and then
haphazardly patching either or both copies, patch only one copy and
create the other *after* patching.

(better yet would be not to copy the thing at all, but I think there
are smlnj reasons you can't do that)

Log message:
Sync 32-on-64 hacks from main smlnj package.