Reinstall (to add profiling) of libraries with C dependencies no longer possible

[jacobstanley]

With cabal-install-1.22.4.0 I am able to rebuild/reinstall a package in place in order to enable profiling, but without having to build all the *.o files again.

Attempting this with cabal-install-1.22.7.0 gives an error like this for the text package:

ar: dist/dist-sandbox-5f5bc1e1/build/cbits/cbits.p_o: No such file or directory

A quick look through the commits between these releases shows that eb46872 looks somewhat suspicious.

I have not yet verified if this happens on master.

[23Skidoo]

/cc @lukexi

[lukexi]

On it! Thanks for the cc

[lukexi]

Hi @jystic — I put a patch here for testing lukexi@ac14bdb.

Tested successfully with:

cabal get text
cd text-1.2.2.0
cabal configure --disable-library-profiling
cabal build
cabal configure --enable-library-profiling 
cabal build

[23Skidoo]

@lukexi Confirmed that your fix works, pushed it to master and 1.22. Can you please also add a test case to Cabal's PackageTests suite?

[jacobstanley]

💯 thanks for the quick response @lukexi @23Skidoo