Unable to build with ghc-9.2.3 on macOS

[alt-romes]

Hey, I think I haven't been able to build any package that depends on primitive because of a linker error.

I've just tried to do a build from scratch of primitive using ghc-9.2.3, macOS 12.4 Intel, with the result below
Unfortunately I don't know how to troubleshoot linker errors here, but I'd be happy to help try to fix this if you have some pointers.

Build profile: -w ghc-9.2.3 -O1
In order, the following will be built (use -v for more details):
 - primitive-0.7.4.0 (lib) (first run)
Configuring library for primitive-0.7.4.0..
Preprocessing library for primitive-0.7.4.0..
Building library for primitive-0.7.4.0..
[ 1 of 13] Compiling Control.Monad.Primitive ( Control/Monad/Primitive.hs, .../primitive/dist-newstyle/build/x86_64-osx/ghc-9.2.3/primitive-0.7.4.0/build/Control/Monad/Primitive.o, .../primitive/dist-newstyle/build/x86_64-osx/ghc-9.2.3/primitive-0.7.4.0/build/Control/Monad/Primitive.dyn_o )
[ 2 of 13] Compiling Data.Primitive.Array ( Data/Primitive/Array.hs, .../primitive/dist-newstyle/build/x86_64-osx/ghc-9.2.3/primitive-0.7.4.0/build/Data/Primitive/Array.o, .../primitive/dist-newstyle/build/x86_64-osx/ghc-9.2.3/primitive-0.7.4.0/build/Data/Primitive/Array.dyn_o )
[ 3 of 13] Compiling Data.Primitive.MVar ( Data/Primitive/MVar.hs, .../primitive/dist-newstyle/build/x86_64-osx/ghc-9.2.3/primitive-0.7.4.0/build/Data/Primitive/MVar.o, .../primitive/dist-newstyle/build/x86_64-osx/ghc-9.2.3/primitive-0.7.4.0/build/Data/Primitive/MVar.dyn_o )
[ 4 of 13] Compiling Data.Primitive.MachDeps ( Data/Primitive/MachDeps.hs, .../primitive/dist-newstyle/build/x86_64-osx/ghc-9.2.3/primitive-0.7.4.0/build/Data/Primitive/MachDeps.o, .../primitive/dist-newstyle/build/x86_64-osx/ghc-9.2.3/primitive-0.7.4.0/build/Data/Primitive/MachDeps.dyn_o )
[ 5 of 13] Compiling Data.Primitive.Internal.Operations ( Data/Primitive/Internal/Operations.hs, .../primitive/dist-newstyle/build/x86_64-osx/ghc-9.2.3/primitive-0.7.4.0/build/Data/Primitive/Internal/Operations.o, .../primitive/dist-newstyle/build/x86_64-osx/ghc-9.2.3/primitive-0.7.4.0/build/Data/Primitive/Internal/Operations.dyn_o )
ld.lld: error: /var/folders/8m/hh324vyn7svdt_7lpmlfghg40000gn/T/ghc14729_0/ghc_51.o: unknown file type
`ld.lld' failed in phase `Merge objects'. (Exit code: 1)

[chessai]

Are you able to share a link to the codebase you're trying to build? Are you building with cabal, nix, or stack? What operating system are you using?

cc @bgamari in case this is a bug

[alt-romes]

I did it as straightforward as I could before reporting it (see below).
I have, however, come across it multiple times when compiling other packages too.
The codebase I'm building is primitive itself :-)

On macOS 12.4 Intel:

git clone https://github.com/haskell/primitive && cd primitive
cabal build

and then got that output

I'm pretty sure I've previously attempted deleting all cabal/store/ghc-version to try and fix it when building other things, with no effect; though I can try once again if you really think it might make a difference in finding the issue.

I guess I should also cabal build with debug flags: which ones?

EDIT: I might add, I am also unable to compile with ghc-9.2.2, though ghc-9.0.2 works.

Thanks :)

[chessai]

cabal clean
cabal build -v3

Maybe this could glean a bit more information

[alt-romes]

Maybe this could glean a bit more information

Unfortunately doesn't seem to buy us much

[ 5 of 13] Compiling Data.Primitive.Internal.Operations ( Data/Primitive/Internal/Operations.hs, /Users/romes/projects/primitive/dist-newstyle/build/x86_64-osx/ghc-9.2.3/primitive-0.7.4.0/build/Data/Primitive/Internal/Operations.o, /Users/romes/projects/primitive/dist-newstyle/build/x86_64-osx/ghc-9.2.3/primitive-0.7.4.0/build/Data/Primitive/Internal/Operations.dyn_o )
ld.lld: error: /var/folders/8m/hh324vyn7svdt_7lpmlfghg40000gn/T/ghc21323_0/ghc_51.o: unknown file type
`ld.lld' failed in phase `Merge objects'. (Exit code: 1)

and there's this warning before which I don't think should be too relevant

Searching for strip in path.
Found strip at /usr/bin/strip
/usr/bin/strip --version
/usr/bin/strip returned ExitFailure 1 with error message:
error:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/strip:
unrecognized option: --version
Usage:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/strip
[-AnuSXx] [-] [-d filename] [-s filename] [-R filename] [-o output] file [...]
Warning: cannot determine version of /usr/bin/strip :
""

Edit: full output @ https://pastebin.mozilla.org/THLoQxJx/slim

[chessai]

Instead of interpreting and splitting up the output into chunks, it's always preferable to paste the full, uninterrupted output

[andrewthad]

From the error logs:

Searching for strip in path.
Found strip at /usr/bin/strip
/usr/bin/strip --version
/usr/bin/strip returned ExitFailure 1 with error message:
error:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/strip:
unrecognized option: --version
Usage:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/strip
[-AnuSXx] [-] [-d filename] [-s filename] [-R filename] [-o output] file [...]
Warning: cannot determine version of /usr/bin/strip :

I've not sure if this is a problem with OSX or a problem with @alt-romes's specific set up. On Ubuntu, I can run:

cabal unpack primitive-0.7.4.0
cd primitive-0.7.4.0
cabal build

And it works fine. I'd like to know if another OSX user is able to reproduce this issue.

[qua3k]

Hi, I just ran into this today. I reproduced with both LLVM@14 and LLVM@12 from Homebrew. This is also on M1 ARM.

user@MacBook ~ % cabal install vector       
Resolving dependencies...
Build profile: -w ghc-9.2.2 -O1
In order, the following will be built (use -v for more details):
 - primitive-0.7.4.0 (lib) (requires build)
 - vector-0.13.0.0 (lib) (requires build)
Starting     primitive-0.7.4.0 (lib)
Building     primitive-0.7.4.0 (lib)

Failed to build primitive-0.7.4.0.
Build log ( /Users/user/.cabal/logs/ghc-9.2.2/prmtv-0.7.4.0-4f8a5dbe.log ):
Configuring library for primitive-0.7.4.0..
Preprocessing library for primitive-0.7.4.0..
Building library for primitive-0.7.4.0..
[ 1 of 12] Compiling Control.Monad.Primitive ( Control/Monad/Primitive.hs, dist/build/Control/Monad/Primitive.o, dist/build/Control/Monad/Primitive.dyn_o )
[ 2 of 12] Compiling Data.Primitive.Array ( Data/Primitive/Array.hs, dist/build/Data/Primitive/Array.o, dist/build/Data/Primitive/Array.dyn_o )
[ 3 of 12] Compiling Data.Primitive.MVar ( Data/Primitive/MVar.hs, dist/build/Data/Primitive/MVar.o, dist/build/Data/Primitive/MVar.dyn_o )
[ 4 of 12] Compiling Data.Primitive.MachDeps ( Data/Primitive/MachDeps.hs, dist/build/Data/Primitive/MachDeps.o, dist/build/Data/Primitive/MachDeps.dyn_o )
[ 5 of 12] Compiling Data.Primitive.Internal.Operations ( Data/Primitive/Internal/Operations.hs, dist/build/Data/Primitive/Internal/Operations.o, dist/build/Data/Primitive/Internal/Operations.dyn_o )
ld.lld: error: /var/folders/0c/smkz_9457_71qqm2bvrm1vgw0000gn/T/ghc6699_0/ghc_49.o: unknown file type
`ld.lld' failed in phase `Merge objects'. (Exit code: 1)
cabal: Failed to build primitive-0.7.4.0 (which is required by
vector-0.13.0.0). See the build log above for details.

Some more logs

user@MacBook Internal % ghc Operations.hs ../MachDeps.hs -optlm --verbose       
[2 of 2] Compiling Data.Primitive.Internal.Operations ( Operations.hs, Operations.o )
ld.lld: /var/folders/0c/smkz_9457_71qqm2bvrm1vgw0000gn/T/ghc29570_0/ghc_12.ldscript
ld.lld: /var/folders/0c/smkz_9457_71qqm2bvrm1vgw0000gn/T/ghc29570_0/ghc_11.o
ld.lld: error: /var/folders/0c/smkz_9457_71qqm2bvrm1vgw0000gn/T/ghc29570_0/ghc_11.o: unknown file type
`ld.lld' failed in phase `Merge objects'. (Exit code: 1)

Attempting to use GNU ld yields

[2 of 2] Compiling Data.Primitive.Internal.Operations ( Operations.hs, Operations.o )
ld: warning: platform not specified
ld: warning: -arch not specified
ld: warning: No platform min-version specified on command line
ld: warning: ignoring file /var/folders/0c/smkz_9457_71qqm2bvrm1vgw0000gn/T/ghc30007_0/ghc_12.ldscript, building for -unknown but attempting to link with file built for unknown-unsupported file format ( 0x49 0x4E 0x50 0x55 0x54 0x28 0x22 0x2F 0x76 0x61 0x72 0x2F 0x66 0x6F 0x6C 0x64 )
Undefined symbols for architecture unknown:
  "_main", referenced from:
     implicit entry/start for main executable
ld: symbol(s) not found for architecture unknown
`ld' failed in phase `Merge objects'. (Exit code: 1)

[qua3k]

I've managed to successfully build with ghc versions <9.2, so there may have been problems porting, although this seems like a compiler bug...

[alt-romes]

I've opened an issue in GHC for this. It's already tracked and the problem is described here https://gitlab.haskell.org/ghc/ghc/-/issues/21570#note_436198

As a temporary workaround, one might uninstall GHC with ghcup, making sure LLVM isn't in $PATH, and then re-installing GHC with ghcup.

Afterwards LLVM can be put back into $PATH if desired

Further discussion on the GHC issue tracker.

Thanks!