--numa doesn't work even if libnuma is available

The configure script set USE_LIBNUMA to 1 if numa exists however the code checks for HAVE_LIBNUMA.

From the main directory,

./configure && make clean && make boot && make
cd nofib/parallel/queens
../../../inplace/bin/ghc-stage2 Main.hs -rtsopts -threaded
./Main 15 +RTS -N24 -s -A64m --numa

It fails saying

Main: --numa: OS reports NUMA is not available

https://phabricator.haskell.org/D2329 introduced this error.

Trac metadata

Trac field	Value
Version	8.0.1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Runtime System
Test case
Differential revisions
BlockedBy
Related
Blocking
CC	niteria, simonmar
Operating system
Architecture