I tried building with -O1 but that didn't help.

I wonder if moving to ghc-7.8 will help.

(<http://s390.koji.fedoraproject.org/koji/taskinfo?taskID=1441705>)


The failure seems specific to s390.  It builds ok on s390x:
http://s390.koji.fedoraproject.org/koji/taskinfo?taskID=1441814

I think the problem will be the compiler process trying to allocate more than 1GB of heap or other memory. s390 has only 2GB address space per process as opposed to the usual 4GB on other 32-bit arches.

Ah right - that makes sense then.

Okay I will try later to play with heap size setting
to see if we can make it compile on s390 too.
2GB of heap still seems like quite a lot but yeah
looks like this lib pushes the limits a bit.

Okay sorry for the long pause.

I tried building with 1GB heap with the change below
but it still fails in the same way.

[ 1 of 22] Compiling Language.Haskell.Exts.Annotated.Syntax ( src/Language/Haskell/Exts/Annotated/Syntax.hs, dist/build/Language/Haskell/Exts/Annotated/Syntax.p_o )
virtual memory exhausted: Cannot allocate memory


```
--- a/ghc-haskell-src-exts.spec
+++ b/ghc-haskell-src-exts.spec
@@ -65,6 +65,10 @@ files.
 
 
 %build
+# s390 has max process size of 2GB
+%ifarch s390
+cabal_configure_extra_options="--ghc-option=+RTS --ghc-option=-M1000m --ghc-option=-RTS"
+%endif
 %ghc_lib_build
 
 
```

I guess the problem is that it actually needs more VM (not less).
So unless I am mistaken the only solution is to exclude s390 for now.

cf https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=654786#8 for a different package

How long do you plan to continue to support Fedora s390 btw?

For now I committed a change to pkg git master to exclude s390.

http://pkgs.fedoraproject.org/cgit/ghc-haskell-src-exts.git/commit/?id=d701a34b2d1a512f0186d9886a49517f8177ce12

It is not built yet but I can backport it to F21 if you like.

To "get further" will need a similar change to hlint and ghc-hgettext.

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