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-dynamic-too is ignored when using -dynamic #6746
Description
General summary/comments (optional)
When I add ghc-options: -dynamic to cabal-file and compile with -Werror, I get the following error:
[warn] when making flags consistent: error: [-Werror]
[warn] -dynamic-too is ignored when using -dynamic
Stack version
stack --version
Version 3.5.1, Git revision 86415540dffcb1990e0b503c894dcb913378f5dc x86_64 hpack-0.38.0
Method of installation
- Via GHCup
Platform
macOS 15.5
Activity
mpilgrem commentedon Jun 15, 2025
@cblp, thanks for reporting.
I can't find
dynamic-tooin Stack's own code.However, Cabal (the library) does make use of
-dynamic-too. (There are code comments in https://hackage.haskell.org/package/Cabal-3.14.2.0/src/src/Distribution/Simple/GHC/Build/Modules.hs).I can't find an existing issue at https://github.com/haskell/cabal/issues that goes directly to your experience. You might raise an issue there. I suppose the question is: why is Cabal itself specifying
-dynamic-toowhen-dynamichas been specified?