[nhc-bugs] nhc98 on netbsd x86_64

[David Holland]

I have been updating NetBSD's nhc98 package (to 1.22), and while it
builds on 32-bit x86, on a 64-bit host the build dies running
hmake3.config with

   PreludeList.init: empty list
   PreludeList.init: empty list
   PreludeList.init: empty list

This comes from the MkConfig binary, which chucks this error
immediately when run:

% MACHINE=x86_64-NetBSD HMAKECONFDIR=/tmp/foo lib/x86_64-NetBSD/MkConfig foo
PreludeList.init: empty list
% 

Running it with no args produces suggestive results:

% MACHINE=x86_64-NetBSD HMAKECONFDIR=/tmp/foo lib/x86_64-NetBSD/MkConfig 
Usage: hmake-config [configfile] list
       hmake-config [configfile] [add|add-dyn|delete|default] hc
              -- hc is name/path of a Haskell compiler
default configfile is:
    PreludeList.init: empty list
% 

inasmuch as it dies when it starts printing the path of the default
config file. However, I see no way that the string involved can lead
to a call to init, on an empty list or otherwise. And since it's
happening inside unsafePerformIO maybe this is a red herring.

Unfortunately since I'm building from the generated C I can't build
MkConfig with trace information or debug printouts or much of anything
else, and consequently I'm more or less stuck.

(This is after adding -m32 to ARCH in Makefile.inc; without that the
build fails almost instantly.)

Suggestions? Are there additional places where -m32 needs to be set
manually? (Given that the behavior is machine-dependent one possible
explanation is that -m32 is missing somewhere so something is mixing
32-bit and 64-bit data and passing nonsense to init.)

-- 
David A. Holland
dholland at netbsd.org