[gentoo-user] emerge dev-hasell/stack fails with unclear error

[Anton Molyboha]

When emerging dev-haskell/stack-1.3.2 I'm getting:

<snip>
[ 84 of 121] Compiling Stack.Path       ( src/Stack/Path.hs,
dist/build/Stack/Path.o )
[ 85 of 121] Compiling Stack.Package    ( src/Stack/Package.hs,
dist/build/Stack/Package.o )
[100 of 121] Compiling Stack.Upload     ( src/Stack/Upload.hs,
dist/build/Stack/Upload.o )
[101 of 121] Compiling Control.Concurrent.Execute (
src/Control/Concurrent/Execute.hs, dist/build/Control/Concurrent/Execute.o
)
* ERROR: dev-haskell/stack-1.3.2::gentoo failed (compile phase):
*   setup build failed
*
* Call stack:
*     ebuild.sh, line  124:  Called src_compile
*   environment, line 2851:  Called haskell-cabal_src_compile
*   environment, line 2049:  Called cabal_src_compile
*   environment, line  771:  Called cabal-build
*   environment, line  535:  Called die
* The specific snippet of code:
*       ./setup "$@" || die "setup build failed"
*
<snip>

So _probably_ something went wrong when compiling Control.Concurrent.Execute
-- but I see no way to tell what was the problem. How do I debug this?

The requisite information is below or attached. Thanks!
-- 
Anton


emerge -pqv '=dev-haskell/stack-1.3.2::gentoo'
[ebuild  N    ] dev-haskell/stack-1.3.2  USE="-doc -hscolour -profile {-test}"