Cut a new release version - (v1.6.6 or v1.7)

[recursion-ninja]

I've been waiting to use features added to Cabal-2.2.* in conjunction with stack for a month now. Unfortunately there's been no traction on the three issues listed as blocking release (#3796, #3791, #3782).

Specifically I need to use the cxx-options and cxx-sources buildinfo fields for separate compilation of C and C++ source files. stack's lack of support of these features is roadblocking our development and continuous integration efforts.

Could you prioritize resolving issues blocking a release incorporating Cabal-2.2.*?

[borsboom]

We're hoping to release 1.7 soon, so I've asked @mgsloan about the priotiy on those issues. The Cabal-2.2 changes are too big to backport to 1.6, so it'll have to be a new major release.

[recursion-ninja]

I'm glad to hear the new release is coming soon. Is there a time table for the v1.7 release somewhere or is that still being determined?

[davetapley]

Looks like #3791 was the sole remaining P0: Blocking release issue, and AFAICT the fix has been merged (#3795). Is my hope merited?

[recursion-ninja]

@dukedave I think so! I'm sure there's a bit a of a review process in tagging a new release, something I'm unfamiliar with. I'm hoping the Stack team can make progress on that next week!

[borsboom]

Release candidate for v1.7.1: https://github.com/commercialhaskell/stack/releases/tag/v1.7.0.1

[recursion-ninja]

@borsboom I tried to build this minimum working example test repository that requires the cxx-sources & cxx-options flags with the v1.7.0.1 pre-release version. Unfortunately it didn't correctly build.

I ran the following commands:

cabal --version
stack-1.7.0.1 init
stack-1.7.0.1 build

I got the following output:

stackuser@stackmachine:~/Code$ git clone https://github.com/recursion-ninja/tcm-memo.git
Cloning into 'tcm-memo'...
remote: Counting objects: 48, done.
remote: Total 48 (delta 0), reused 0 (delta 0), pack-reused 48
Unpacking objects: 100% (48/48), done.
stackuser@stackmachine:~/Code$ cd tcm-memo/
stackuser@stackmachine:~/Code/tcm-memo$ ls
Main.hs  memoized-tcm  README.md  src  tcm-memo.cabal
stackuser@stackmachine:~/Code/tcm-memo$ cabal --version
cabal-install version 2.2.0.0
compiled using version 2.2.0.1 of the Cabal library
stackuser@stackmachine:~/Code/tcm-memo$ stack-1.7.0.1 build
Preparing to install GHC to an isolated location.
This will not interfere with any system-level installation.
Downloaded ghc-8.2.2.                                      
Unpacking GHC into /home/stackuser/.stack/programs/x86_64-linux/ghc-8.2.2.temp/                                                                                 Installed GHC.     
Error parsing targets: The specified targets matched no packages.
Perhaps you need to run 'stack init'?
stackuser@stackmachine:~/Code/tcm-memo$ stack-1.7.0.1 init
Looking for .cabal or package.yaml files to use to init the project.
Using cabal packages:
- ./


Warning: Cabal file warning in /home/stackuser/Code/tcm-memo/tcm-memo.cabal@
         38:3: The field "cxx-sources" is available since Cabal [2,1]

Warning: Cabal file warning in /home/stackuser/Code/tcm-memo/tcm-memo.cabal@
         40:3: The field "cxx-options" is available since Cabal [2,1]
Selecting the best among 13 snapshots...

Downloaded lts-11.5 build plan.    
Didn't see GLFW-b-1.4.8.3@sha256:55beca023703a7d0fceeb381d7eb9c4d0617f161452962047a715d8200df82c6,2207 in your package indices.
Updating and trying again.
Updating package index Hackage (mirrored at https://s3.amazonaws.com/hackage.fpc                                                                                Selected mirror https://s3.amazonaws.com/hackage.fpcomplete.com/
Updating package index Hackage (mirrored at https://s3.amazonaws.com/hackage.fpc                                                                                Downloading timestamp
Updating package index Hackage (mirrored at https://s3.amazonaws.com/hackage.fpc                                                                                Downloading snapshot
Updating package index Hackage (mirrored at https://s3.amazonaws.com/hackage.fpc                                                                                Updating index   
Updating package index Hackage (mirrored at https://s3.amazonaws.com/hackage.fpc                                                                                Updated package index downloaded
Updating package index Hackage (mirrored at https://s3.amazonaws.com/hackage.fpc                                                                                Update complete  
Populated index cache.    
* Matches lts-11.5

Selected resolver: lts-11.5
Initialising configuration using resolver: lts-11.5
Total number of user packages considered: 1
Writing configuration to file: stack.yaml
All done.
stackuser@stackmachine:~/Code/tcm-memo$ stack-1.7.0.1 build

Warning: Cabal file warning in /home/stackuser/Code/tcm-memo/tcm-memo.cabal@
         38:3: The field "cxx-sources" is available since Cabal [2,1]

Warning: Cabal file warning in /home/stackuser/Code/tcm-memo/tcm-memo.cabal@
         40:3: The field "cxx-options" is available since Cabal [2,1]
[1 of 2] Compiling Main             ( /home/stackuser/.stack/setup-exe-src/setup-mPHDZzAJ.hs, /home/stackuser/.stack/setup-exe-src/setup-mPHDZzAJ.o )
[2 of 2] Compiling StackSetupShim   ( /home/stackuser/.stack/setup-exe-src/setup-shim-mPHDZzAJ.hs, /home/stackuser/.stack/setup-exe-src/setup-shim-mPHDZzAJ.o )
Linking /home/stackuser/.stack/setup-exe-cache/x86_64-linux/tmp-Cabal-simple_mPHDZzAJ_2.0.1.0_ghc-8.2.2 ...
base-orphans-0.7: configure
base-orphans-0.7: build
fail-4.9.0.0: configure
fail-4.9.0.0: build
mtl-2.2.2: configure
fail-4.9.0.0: copy/register
Progress 1/37: Cabal-2.0.1.1, base-orphans-0.7, call-stack-0.1.0, mtl-2.2.2, parallel-3.2.1.1, primitive-0.6.3.0, random-1.1, reflection-2.1.3, safe-0.3.17, sem                                                                                                                                                                mtl-2.2.2: build                         
Progress 1/37: Cabal-2.0.1.1, base-orphans-0.7, call-stack-0.1.0, mtl-2.2.2, parallel-3.2.1.1, primitive-0.6.3.0, random-1.1, reflection-2.1.3, safe-0.3.17, sem                                                                                                                                                                parallel-3.2.1.1: configure              
Progress 1/37: Cabal-2.0.1.1, base-orphans-0.7, call-stack-0.1.0, mtl-2.2.2, parallel-3.2.1.1, primitive-0.6.3.0, random-1.1, reflection-2.1.3, safe-0.3.17, sem                                                                                                                                                                base-orphans-0.7: copy/register          
Progress 1/37: Cabal-2.0.1.1, base-orphans-0.7, call-stack-0.1.0, mtl-2.2.2, parallel-3.2.1.1, primitive-0.6.3.0, random-1.1, reflection-2.1.3, safe-0.3.17, sem                                                                                                                                                                Progress 2/37: Cabal-2.0.1.1, call-stack-0.1.0, mtl-2.2.2, parallel-3.2.1.1, primitive-0.6.3.0, random-1.1, reflection-2.1.3, safe-0.3.17, semigroups-0.18.4, st                                                                                                                                                                parallel-3.2.1.1: build                        
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Progress 2/37: Cabal-2.0.1.1, call-stack-0.1.0, mtl-2.2.2, parallel-3.2.1.1, primitive-0.6.3.0, random-1.1, reflection-2.1.3, safe-0.3.17, semigroups-0.18.4, st                                                                                                                                                                random-1.1: build                              
Progress 2/37: Cabal-2.0.1.1, call-stack-0.1.0, mtl-2.2.2, parallel-3.2.1.1, primitive-0.6.3.0, random-1.1, reflection-2.1.3, safe-0.3.17, semigroups-0.18.4, st                                                                                                                                                                reflection-2.1.3: configure                    
Progress 2/37: Cabal-2.0.1.1, call-stack-0.1.0, mtl-2.2.2, parallel-3.2.1.1, primitive-0.6.3.0, random-1.1, reflection-2.1.3, safe-0.3.17, semigroups-0.18.4, stm-                                                                                                                                                                  reflection-2.1.3: build                      
Progress 2/37: Cabal-2.0.1.1, call-stack-0.1.0, mtl-2.2.2, parallel-3.2.1.1, primitive-0.6.3.0, random-1.1, reflection-2.1.3, safe-0.3.17, semigroups-0.18.4, stm-                                                                                                                                                                  safe-0.3.17: configure                       
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Progress 2/37: Cabal-2.0.1.1, call-stack-0.1.0, mtl-2.2.2, parallel-3.2.1.1, primitive-0.6.3.0, random-1.1, reflection-2.1.3, safe-0.3.17, semigroups-0.18.4, stm-                                                                                                                                                                  Progress 3/37: Cabal-2.0.1.1, call-stack-0.1.0, mtl-2.2.2, primitive-0.6.3.0, random-1.1, reflection-2.1.3, safe-0.3.17, semigroups-0.18.4, stm-2.4.5.0,                                                                                                                       safe-0.3.17: build                                                                                 
Progress 3/37: Cabal-2.0.1.1, call-stack-0.1.0, mtl-2.2.2, primitive-0.6.3.0, random-1.1, reflection-2.1.3, safe-0.3.17                                                                                                                       call-stack-0.1.0: configure                                                                        
Progress 3/37: Cabal-2.0.1.1, call-stack-0.1.0, mtl-2.2.2, primitive-0.6.3.0, random-1.1, reflection-2.1.3, safe-0.3.17                                                                                                                       mtl-2.2.2: copy/register                                                                           
Progress 3/37: Cabal-2.0.1.1, call-stack-0.1.0, mtl-2.2.2, primitive-0.6.3.0, random-1.1, reflection-2.1.3, safe-0.3.17                                                                                                                       Progress 4/37: Cabal-2.0.1.1, call-stack-0.1.0, primitive-0.6.3.0, random-1.1, reflection-2.1.3, safe-0.3.17, semigroup                                                                                                                       call-stack-0.1.0: build                                                                             
Progress 4/37: Cabal-2.0.1.1, call-stack-0.1.0, primitive-0.6.3.0, random-1.1, reflection-2.1.3, safe-0.3.17, semigroup                                                                                                                       semigroups-0.18.4: configure                                                                        
Progress 4/37: Cabal-2.0.1.1, call-stack-0.1.0, primitive-0.6.3.0, random-1.1, reflection-2.1.3, safe-0.3.17, semigroups-0.18.4, stm-2.4.5.0                                                                                                                                            semigroups-0.18.4: build                                                       
Progress 4/37: Cabal-2.0.1.1, call-stack-0.1.0, primitive-0.6.3.0, random-1.1, reflection-2.1.3, safe-0.3.17, semigroups-0.18.4, stm-2.4.5.0                                                                                                                                            stm-2.4.5.0: configure                                                         
Progress 4/37: Cabal-2.0.1.1, call-stack-0.1.0, primitive-0.6.3.0, random-1.1, reflection-2.1.3, safe-0.3.17, semigroups-0.18.4, stm-2.4.5.0                                                                                                                                            call-stack-0.1.0: copy/register                                                
Progress 4/37: Cabal-2.0.1.1, call-stack-0.1.0, primitive-0.6.3.0, random-1.1, reflection-2.1.3, safe-0.3.17, semigroups-0.18.4, stm-2.4.5.0                                                                                                                                            Progress 5/37: Cabal-2.0.1.1, primitive-0.6.3.0, random-1.1, reflection-2.1.3, safe-0.3.17, semigroups-0.18.4, stm-2.4.5.0, text-1.2.3.0, th                                                                                                                                            random-1.1: copy/register                                    
Progress 5/37: Cabal-2.0.1.1, primitive-0.6.3.0, random-1.1, reflection-2.1.3, safe-0.3.17, semigroups-0.18.4, stm-2.4.5.0, text-1.2.3.0, th                                                                                                                                            Progress 6/37: Cabal-2.0.1.1, primitive-0.6.3.0, reflection-2.1.3, safe-0.3.17, semigroups-0.18.4, stm-2.4.5.0, text-1.2.3.0, th-abstraction                                                                                                                                            stm-2.4.5.0: build                               
Progress 6/37: Cabal-2.0.1.1, primitive-0.6.3.0, reflection-2.1.3, safe-0.3.17, semigroups-0.18.4, stm-2.4.5.0, text-1.2.3.0, th-abstraction                                                                                                                                            primitive-0.6.3.0: configure                     
Progress 6/37: Cabal-2.0.1.1, primitive-0.6.3.0, reflection-2.1.3, safe-0.3.17, semigroups-0.18.4, stm-2.4.5.0, text-1.2.3.0, th-abstraction                                                                                                                                            semigroups-0.18.4: copy/register                 
Progress 6/37: Cabal-2.0.1.1, primitive-0.6.3.0, reflection-2.1.3, safe-0.3.17, semigroups-0.18.4, stm-2.4.5.0, text-1.2.3.0, th-abstraction                                                                                                                                            Progress 7/37: Cabal-2.0.1.1, primitive-0.6.3.0, reflection-2.1.3, safe-0.3.17, stm-2.4.5.0, text-1.2.3.0, th-abstraction-0.2.6.0, transform                                                                                                                                            safe-0.3.17: copy/register    
Progress 7/37: Cabal-2.0.1.1, primitive-0.6.3.0, reflection-2.1.3, safe-0.3.17, stm-2.4.5.0, text-1.2.3.0, th-abstraction-0.2.6.0, transform                                                                                                                                            Progress 8/37: Cabal-2.0.1.1, primitive-0.6.3.0, reflection-2.1.3, stm-2.4.5.0, text-1.2.3.0, th-abstraction-0.2.6.0, transformers-compat-0.                                                                                                                                            primitive-0.6.3.0: build
Progress 8/37: Cabal-2.0.1.1, primitive-0.6.3.0, reflection-2.1.3, stm-2.4.5.0, text-1.2.3.0, th-abstraction-0.2.6.0, transformers-compat-0.                                                                                                                                            Cabal-2.0.1.1: configure
Progress 8/37: Cabal-2.0.1.1, primitive-0.6.3.0, reflection-2.1.3, stm-2.4.5.0, text-1.2.3.0, th-abstraction-0.2.6.0, transformers-compat-0.                                                                                                                                            reflection-2.1.3: copy/register
Progress 8/37: Cabal-2.0.1.1, primitive-0.6.3.0, reflection-2.1.3, stm-2.4.5.0, text-1.2.3.0, th-abstraction-0.2.6.0, transformers-compat-0.                                                                                                                                            Cabal-2.0.1.1: build                                                                                                                       
text-1.2.3.0: configure                                                                                                                    
text-1.2.3.0: build                                                                                                                        
th-abstraction-0.2.6.0: configure                                                                                                          
stm-2.4.5.0: copy/register                                                                                                                 
Progress 9/37: Cabal-2.0.1.1, primitive-0.6.3.0, stm-2.4.5.0, text-1.2.3.0, th-abstraction-0.2.6.0, transformers-compat-0.5.1.4, void-0.7.2^Progress 10/37: Cabal-2.0.1.1, StateVar-1.1.0.4, primitive-0.6.3.0, text-1.2.3.0, th-abstraction-0.2.6.0, transformers-compat-0.5.1.4, void-                                                                                                                                            th-abstraction-0.2.6.0: build
Progress 10/37: Cabal-2.0.1.1, StateVar-1.1.0.4, primitive-0.6.3.0, text-1.2.3.0, th-abstraction-0.2.6.0, transformers-compat-0.5.1.4, void-                                                                                                                                            transformers-compat-0.5.1.4: configure
Progress 10/37: Cabal-2.0.1.1, StateVar-1.1.0.4, primitive-0.6.3.0, text-1.2.3.0, th-abstraction-0.2.6.0, transformers-compat-0.5.1.4, void-                                                                                                                                            transformers-compat-0.5.1.4: build
Progress 10/37: Cabal-2.0.1.1, StateVar-1.1.0.4, primitive-0.6.3.0, text-1.2.3.0, th-abstraction-0.2.6.0, transformers-compat-0.5.1.4, void-                                                                                                                                            void-0.7.2: configure
Progress 10/37: Cabal-2.0.1.1, StateVar-1.1.0.4, primitive-0.6.3.0, text-1.2.3.0, th-abstraction-0.2.6.0, transformers-compat-0.5.1.4, void-                                                                                                                                            void-0.7.2: build
Progress 10/37: Cabal-2.0.1.1, StateVar-1.1.0.4, primitive-0.6.3.0, text-1.2.3.0, th-abstraction-0.2.6.0, transformers-compat-0.5.1.4, void-                                                                                                                                            StateVar-1.1.0.4: configure
Progress 10/37: Cabal-2.0.1.1, StateVar-1.1.0.4, primitive-0.6.3.0, text-1.2.3.0, th-abstraction-0.2.6.0, transformers-compat-0.5.1.4, void-                                                                                                                                            transformers-compat-0.5.1.4: copy/register
Progress 10/37: Cabal-2.0.1.1, StateVar-1.1.0.4, primitive-0.6.3.0, text-1.2.3.0, th-abstraction-0.2.6.0, transformers-compat-0.5.1.4, void-                                                                                                                                            void-0.7.2: copy/register
Progress 10/37: Cabal-2.0.1.1, StateVar-1.1.0.4, primitive-0.6.3.0, text-1.2.3.0, th-abstraction-0.2.6.0, transformers-compat-0.5.1.4, void-                                                                                                                                            Progress 11/37: Cabal-2.0.1.1, StateVar-1.1.0.4, exceptions-0.8.3, primitive-0.6.3.0, tagged-0.8.5, text-1.2.3.0, th-abstraction-0.2.6.0, tr                                                                                                                                            Progress 12/37: Cabal-2.0.1.1, StateVar-1.1.0.4, exceptions-0.8.3, primitive-0.6.3.0, tagged-0.8.5, text-1.2.3.0, th-abstraction-0.2.6.0, tr                                                                                                                                            StateVar-1.1.0.4: build
Progress 12/37: Cabal-2.0.1.1, StateVar-1.1.0.4, exceptions-0.8.3, primitive-0.6.3.0, tagged-0.8.5, text-1.2.3.0, th-abstraction-0.2.6.0, tr                                                                                                                                            exceptions-0.8.3: configure
Progress 12/37: Cabal-2.0.1.1, StateVar-1.1.0.4, exceptions-0.8.3, primitive-0.6.3.0, tagged-0.8.5, text-1.2.3.0, th-abstraction-0.2.6.0, tr                                                                                                                                            exceptions-0.8.3: build
Progress 12/37: Cabal-2.0.1.1, StateVar-1.1.0.4, exceptions-0.8.3, primitive-0.6.3.0, tagged-0.8.5, text-1.2.3.0, th-abstraction-0.2.6.0, tr                                                                                                                                            transformers-base-0.4.4: configure
Progress 12/37: Cabal-2.0.1.1, StateVar-1.1.0.4, exceptions-0.8.3, primitive-0.6.3.0, tagged-0.8.5, text-1.2.3.0, th-abstraction-0.2.6.0, tr                                                                                                                                            StateVar-1.1.0.4: copy/register
Progress 12/37: Cabal-2.0.1.1, StateVar-1.1.0.4, exceptions-0.8.3, primitive-0.6.3.0, tagged-0.8.5, text-1.2.3.0, th-abstraction-0.2.6.0, tr                                                                                                                                            Progress 13/37: Cabal-2.0.1.1, contravariant-1.4.1, exceptions-0.8.3, primitive-0.6.3.0, tagged-0.8.5, text-1.2.3.0, th-abstraction-0.2.6.0,                                                                                                                                            transformers-base-0.4.4: build
Progress 13/37: Cabal-2.0.1.1, contravariant-1.4.1, exceptions-0.8.3, primitive-0.6.3.0, tagged-0.8.5, text-1.2.3.0, th-abstraction-0.2.6.0,                                                                                                                                            tagged-0.8.5: configure 
Progress 13/37: Cabal-2.0.1.1, contravariant-1.4.1, exceptions-0.8.3, primitive-0.6.3.0, tagged-0.8.5, text-1.2.3.0, th-abstraction-0.2.6.0,                                                                                                                                            th-abstraction-0.2.6.0: copy/register
Progress 13/37: Cabal-2.0.1.1, contravariant-1.4.1, exceptions-0.8.3, primitive-0.6.3.0, tagged-0.8.5, text-1.2.3.0, th-abstraction-0.2.6.0,                                                                                                                                            tagged-0.8.5: build                                                                                                                         
contravariant-1.4.1: configure                                                                                                              
primitive-0.6.3.0: copy/register                                                                                                            
exceptions-0.8.3: copy/register                                                                                                             
Progress 15/37: Cabal-2.0.1.1, contravariant-1.4.1, exceptions-0.8.3, tagged-0.8.5, text-1.2.3.0, tf-random-0.5, transformers-base-0.4.4, ve                                                                                                                                            contravariant-1.4.1: build
Progress 15/37: Cabal-2.0.1.1, contravariant-1.4.1, exceptions-0.8.3, tagged-0.8.5, text-1.2.3.0, tf-random-0.5, transformers-base-0.4.4, ve                                                                                                                                            tf-random-0.5: configure
Progress 15/37: Cabal-2.0.1.1, contravariant-1.4.1, exceptions-0.8.3, tagged-0.8.5, text-1.2.3.0, tf-random-0.5, transformers-base-0.4.4, ve                                                                                                                                            transformers-base-0.4.4: copy/register
Progress 15/37: Cabal-2.0.1.1, contravariant-1.4.1, exceptions-0.8.3, tagged-0.8.5, text-1.2.3.0, tf-random-0.5, transformers-base-0.4.4, ve                                                                                                                                            tf-random-0.5: build                                                                                                                   
vector-0.12.0.1: configure                                                                                    
vector-0.12.0.1: build                                                                                        
tagged-0.8.5: copy/register                                                                                   
contravariant-1.4.1: copy/register                                                                            
tf-random-0.5: copy/register                                                                    
QuickCheck-2.10.1: configure                                                   
QuickCheck-2.10.1: build                                                       
QuickCheck-2.10.1: copy/register                                               
text-1.2.3.0: copy/register                                                    
hashable-1.2.7.0: configure                                     
hashable-1.2.7.0: build                                         
hashable-1.2.7.0: copy/register                                 
unordered-containers-0.2.9.0: configure                                     
unordered-containers-0.2.9.0: build                                         
unordered-containers-0.2.9.0: copy/register                                 
vector-0.12.0.1: copy/register                                              
Cabal-2.0.1.1: copy/register                                                
cabal-doctest-1.0.6: configure     
cabal-doctest-1.0.6: build         
cabal-doctest-1.0.6: copy/register 
distributive-0.5.3: configure      
distributive-0.5.3: build         
distributive-0.5.3: copy/register 
comonad-5.0.3: configure          
comonad-5.0.3: build         
comonad-5.0.3: copy/register 
bifunctors-5.5.2: configure     
bifunctors-5.5.2: build         
bifunctors-5.5.2: copy/register 
profunctors-5.2.2: configure                          
profunctors-5.2.2: build                              
semigroupoids-5.2.2: configure                        
semigroupoids-5.2.2: build                            
profunctors-5.2.2: copy/register                      
semigroupoids-5.2.2: copy/register                    
free-5.0.1: configure              
free-5.0.1: build         
free-5.0.1: copy/register 
adjunctions-4.4: configure     
adjunctions-4.4: build         
adjunctions-4.4: copy/register 
kan-extensions-5.1: configure     
kan-extensions-5.1: build         
kan-extensions-5.1: copy/register 
lens-4.16.1: download             
lens-4.16.1: configure     
lens-4.16.1: build         
lens-4.16.1: copy/register 
Building all executables for `tcm-memo' once. After a successful build of all of them, only specified executables will be rebuilt.
tcm-memo-1.0.0.0: configure (lib + exe)
Warning: tcm-memo.cabal: Unknown fields: cxx-sources (line 38), cxx-options
(line 40)                       
Fields allowed in this section: 
exposed-modules, reexported-modules, signatures, exposed,
buildable, build-tools, build-tool-depends, build-depends, mixins,
cpp-options, cc-options, ld-options, pkgconfig-depends, frameworks,
extra-framework-dirs, c-sources, js-sources, default-language,
other-languages, default-extensions, other-extensions, extensions,
extra-libraries, extra-ghci-libraries, extra-lib-dirs, includes,
install-includes, include-dirs, hs-source-dirs, other-modules,
autogen-modules, ghc-prof-options, ghcjs-prof-options,
ghc-shared-options, ghcjs-shared-options, ghc-options,
ghcjs-options, jhc-options, hugs-options, nhc98-options
Configuring tcm-memo-1.0.0.0... 
tcm-memo-1.0.0.0: build (lib + exe)
Preprocessing library for tcm-memo-1.0.0.0..
Building library for tcm-memo-1.0.0.0..
[1 of 3] Compiling Bio.Character.Exportable.Class ( src/Bio/Character/Exportable/Class.hs, .stack-work/dist/x86_64-linux/Cabal-2.0.1.0/build/Bio/Character/Exportable/Class.o )
[2 of 3] Compiling Data.TCM.Memoized.FFI ( .stack-work/dist/x86_64-linux/Cabal-2.0.1.0/build/Data/TCM/Memoized/FFI.hs, .stack-work/dist/x86_64-linux/Cabal-2.0.1.0/build/Data/TCM/Memoized/FFI.o )
[3 of 3] Compiling Data.TCM.Memoized ( src/Data/TCM/Memoized.hs, .stack-work/dist/x86_64-linux/Cabal-2.0.1.0/build/Data/TCM/Memoized.o )
Preprocessing executable 'use-the-code' for tcm-memo-1.0.0.0..
Building executable 'use-the-code' for tcm-memo-1.0.0.0..
[1 of 1] Compiling Main             ( Main.hs, .stack-work/dist/x86_64-linux/Cabal-2.0.1.0/build/use-the-code/use-the-code-tmp/Main.o )
Linking .stack-work/dist/x86_64-linux/Cabal-2.0.1.0/build/use-the-code/use-the-code ...
/home/stackuser/Code/tcm-memo/.stack-work/dist/x86_64-linux/Cabal-2.0.1.0/build/libHStcm-memo-1.0.0.0-IOwpDFGvo0sIPrIJlWs5ou.a(costMatrixWrapper.o):costMatrixWrapper.c:function matrixInit: error: undefined reference to 'construct_CostMatrix_C'
/home/stackuser/Code/tcm-memo/.stack-work/dist/x86_64-linux/Cabal-2.0.1.0/build/libHStcm-memo-1.0.0.0-IOwpDFGvo0sIPrIJlWs5ou.a(costMatrixWrapper.o):costMatrixWrapper.c:function matrixDestroy: error: undefined reference to 'destruct_CostMatrix_C'
/home/stackuser/Code/tcm-memo/.stack-work/dist/x86_64-linux/Cabal-2.0.1.0/build/libHStcm-memo-1.0.0.0-IOwpDFGvo0sIPrIJlWs5ou.a(costMatrixWrapper.o):costMatrixWrapper.c:function getCostInternal: error: undefined reference to 'call_getSetCost_C'
/home/stackuser/Code/tcm-memo/.stack-work/dist/x86_64-linux/Cabal-2.0.1.0/build/libHStcm-memo-1.0.0.0-IOwpDFGvo0sIPrIJlWs5ou.a(costMatrixWrapper.o):costMatrixWrapper.c:function getCostAndMedian: error: undefined reference to 'call_getSetCost_C'
collect2: error: ld returned 1 exit status
`gcc' failed in phase `Linker'. (Exit code: 1)
Completed 37 action(s).         

--  While building custom Setup.hs for package tcm-memo-1.0.0.0 using:
      /home/stackuser/.stack/setup-exe-cache/x86_64-linux/Cabal-simple_mPHDZzAJ_2.0.1.0_ghc-8.2.2 --builddir=.stack-work/dist/x86_64-linux/Cabal-2.0.1.0 build lib:tcm-memo exe:use-the-code --ghc-options " -ddump-hi -ddump-to-file -fdiagnostics-color=always"
    Process exited with code: ExitFailure 1

There were a lot of warnings emitted regarding the cxx-sources & cxx-options flags. Also, there was a lot of Cabal-2.0.1.1 in the output. I'm not convinced that it is building using Cabal-2.2.

[borsboom]

tcm-memo.cabal should specify cabal-version: 2.2, otherwise those fields won't be recognized. Although once you do that, your build will fail with:

Cabal-simple_mPHDZzAJ_2.0.1.0_ghc-8.2.2: This package description follows
version 2.2 of the Cabal specification. This tool only supports up to version
2.0.1.0

That's because GHC 8.2.2 comes with Cabal-2.0.1.0 and so that is the version that's used to build your package. Change the resolver in stack.yaml to nightly-2018-04-17, to use GHC 8.4.1, and it should work.

[recursion-ninja]

@borsboom thanks for the technical assistance, let me try to rebuild in the morning with ghc-8.4.1.

I did try bumping the cabal-version field to 2.2 but was getting parse errors from cabal with ghc-8.2.2. That consumed my attention and caused me to miss the informative warning message.

[recursion-ninja]

@borsboom the test repository does build with the v1.7.0.1 release candidate after ensuring that the resolver used ghc-8.4.1!

[borsboom]

https://github.com/commercialhaskell/stack/releases/tag/v1.7.1 released.