Segmentation fault in Cabal

I get a segfault in the following program, compiled on OS X with the development version of GHC (last commit 50e4d40f), run with the command ./Setup configure. A .cabal file is not needed to produce the error.

-- ghc --make Setup.hs
import Distribution.Simple
main = defaultMainWithHooks simpleUserHooks

I discovered the problem when installing llvm-general-pure.

Trac metadata

Trac field	Value
Version	7.8.1-rc1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	libraries (other)
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
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changed weight to 5

added Tbug Trac import labels

Can you provide the exact steps you did? Also, can you try the RC1 binaries? And what platform are you on, OS version, etc etc?

I am using Mac OS 10.6.8. I can not find an RC1 binary for this OS. There are binaries for Mac OS 10.7 and 10.9.

The problem appeared when I updated a preexisting repository to get the fix for #8180 (closed). Here are the steps as I remember them.

I ran ./sync-all pull --rebase; make clean; configure --prefix=$HOME/env/ghc; make; make install. GHC 7.4.1 and Haskell platform 2012.2.0.0 were used to bootstrap. I ran into the bug after installing some packages, but the bug seems to depend only on the libraries included with GHC. The bug is produced by adding the install path to PATH, writing the program to Setup.hs, compiling it with ghc --make, and running ./Setup configure.

My local changes to the RTS were #ifdef'd out during the test. I haven't tested a pristine copy of the sources.

changed milestone to %7.8.2

I'm afraid it seems I can't reproduce this on my machines (Lion & Mavericks,) and unless a patch comes in, it's unlikely I'll be able to. I'm unfortunately going to have to punt this for 7.8.1.

Trac metadata

Trac field	Value
Version	7.8.1-rc1 →

Trac metadata

Trac field	Value
Version	→ 7.8.1-rc1

changed milestone to %7.8.3

closed

changed milestone to %7.8.1

This one was fixed with one of Simon's code generator changes for 7.8.1, actually. Yay!

Trac metadata

Trac field	Value
Resolution	Unresolved → ResolvedFixed

added runtime crash label

added Pnormal label