Simplifier ticks exhausted at compiling svg-builder

I tried to install svg-builder by "cabal install svg-builder"and got the following error:

Resolving dependencies... Configuring svg-builder-0.1.0.1... Building svg-builder-0.1.0.1... Preprocessing library svg-builder-0.1.0.1... [1 of 5] Compiling Graphics.Svg.Path ( src/Graphics/Svg/Path.hs, dist/build/Graphics/Svg/Path.o ) [2 of 5] Compiling Graphics.Svg.Core ( src/Graphics/Svg/Core.hs, dist/build/Graphics/Svg/Core.o ) ghc: panic! (the 'impossible' happened)

(GHC version 7.8.4 for x86_64-unknown-linux):

Simplifier ticks exhausted

When trying UnfoldingDone base:Foreign.Storable.$fStorableWord21{v

r2cT} [gid]

To increase the limit, use -fsimpl-tick-factor=N (default 100)

If you need to do this, let GHC HQ know, and what factor you needed

To see detailed counts use -ddump-simpl-stats

Total ticks: 34200

I tried again with ghc -fsimpl-tick-factor=300 and it worked.

Trac metadata

Trac field	Value
Version	7.8.4-rc1
Type	Bug
TypeOfFailure	OtherFailure
Priority	low
Resolution	Unresolved
Component	Compiler
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture

changed weight to 3

added Tbug Trac import labels

closed

I can reproduce the problem with ghc-7.8.4. Though it seems to have been fixed already in ghc-7.10 and higher.

In any case, svg-builder has a workaround for the problem now, setting -fsimpl-tick-factor=110 in the .cabal file: https://github.com/diagrams/svg-builder/commit/b7f4ac8209e66409b9848ae3de2b534692bd8be3

So I don't think there is anything left to do here. Thank you for the report. Please yell if you're still having problems (you'll have to build svg-builder from git master, or wait for a new release on hackage).

Trac metadata

Trac field	Value
Resolution	Unresolved → ResolvedWorksForMe

added Plow label