Comments (14)
thomasjm
commented on August 25, 2024
1
Yeah, the error happened when using GHCi, but not when I ran stack build on hsass itself. Looks like it's the same as the issue you linked. Thanks!
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jakubfijalkowski
commented on August 25, 2024
Hi!
Does this error occur in GHCi only? GHCi seems to have problems with loading correct libstdc++ and this is "known bug" (see hLibsass readme ). Moreover, check the issue jakubfijalkowski/hlibsass#6 - it seems to be the same (and related to shared libraries).
I will probably be able to check and try to fix this once and for all on the weekend. I'll come back in a few days.
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nrolland
commented on August 25, 2024
@thomasjm could you get it to work ? I just upgraded to Sierra and I have the same pb again....
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thomasjm
commented on August 25, 2024
Nope, still waiting on a fix.
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nrolland
commented on August 25, 2024
can you compile hsass with the flags
flags:
hlibsass:
externalLibsass: true
in the stack.yaml ?
I get
Progress: 1/2
-- While building package hlibsass-0.1.5.0 using:
/private/var/folders/9d/vgq7v77x27xb7v93gg85bcmc0000gn/T/stack91128/hlibsass-0.1.5.0/.stack-work/dist/x86_64-osx/Cabal-1.24.2.0/setup/setup --builddir=.stack-work/dist/x86_64-osx/Cabal-1.24.2.0 configure --with-ghc=/Users/nrolland/.stack/programs/x86_64-osx/ghc-8.0.2/bin/ghc --with-ghc-pkg=/Users/nrolland/.stack/programs/x86_64-osx/ghc-8.0.2/bin/ghc-pkg --with-ghcjs=/Users/nrolland/.local/bin/ghcjs --with-ghcjs-pkg=/Users/nrolland/.local/bin/ghcjs-pkg --user --package-db=clear --package-db=global --package-db=/Users/nrolland/.stack/snapshots/x86_64-osx/lts-8.5/8.0.2/pkgdb --package-db=/Users/nrolland/Sync/clones/hsass/.stack-work/install/x86_64-osx/lts-8.5/8.0.2/pkgdb --libdir=/Users/nrolland/Sync/clones/hsass/.stack-work/install/x86_64-osx/lts-8.5/8.0.2/lib --bindir=/Users/nrolland/Sync/clones/hsass/.stack-work/install/x86_64-osx/lts-8.5/8.0.2/bin --datadir=/Users/nrolland/Sync/clones/hsass/.stack-work/install/x86_64-osx/lts-8.5/8.0.2/share --libexecdir=/Users/nrolland/Sync/clones/hsass/.stack-work/install/x86_64-osx/lts-8.5/8.0.2/libexec --sysconfdir=/Users/nrolland/Sync/clones/hsass/.stack-work/install/x86_64-osx/lts-8.5/8.0.2/etc --docdir=/Users/nrolland/Sync/clones/hsass/.stack-work/install/x86_64-osx/lts-8.5/8.0.2/doc/hlibsass-0.1.5.0 --htmldir=/Users/nrolland/Sync/clones/hsass/.stack-work/install/x86_64-osx/lts-8.5/8.0.2/doc/hlibsass-0.1.5.0 --haddockdir=/Users/nrolland/Sync/clones/hsass/.stack-work/install/x86_64-osx/lts-8.5/8.0.2/doc/hlibsass-0.1.5.0 --dependency=base=base-4.9.1.0 -fexternalLibsass -f-sharedlibsass --exact-configuration
Process exited with code: ExitFailure 1
Logs have been written to: /Users/nrolland/Sync/clones/hsass/.stack-work/logs/hlibsass-0.1.5.0.log
[1 of 2] Compiling Main ( /private/var/folders/9d/vgq7v77x27xb7v93gg85bcmc0000gn/T/stack91128/hlibsass-0.1.5.0/Setup.hs, /private/var/folders/9d/vgq7v77x27xb7v93gg85bcmc0000gn/T/stack91128/hlibsass-0.1.5.0/.stack-work/dist/x86_64-osx/Cabal-1.24.2.0/setup/Main.o )
[2 of 2] Compiling StackSetupShim ( /Users/nrolland/.stack/setup-exe-src/setup-shim-mPHDZzAJ.hs, /private/var/folders/9d/vgq7v77x27xb7v93gg85bcmc0000gn/T/stack91128/hlibsass-0.1.5.0/.stack-work/dist/x86_64-osx/Cabal-1.24.2.0/setup/StackSetupShim.o )
Linking /private/var/folders/9d/vgq7v77x27xb7v93gg85bcmc0000gn/T/stack91128/hlibsass-0.1.5.0/.stack-work/dist/x86_64-osx/Cabal-1.24.2.0/setup/setup ...
Configuring hlibsass-0.1.5.0...
setup: Missing dependency on a foreign library:
* Missing C library: sass
This problem can usually be solved by installing the system package that
provides this library (you may need the "-dev" version). If the library is
already installed but in a non-standard location then you can use the flags
--extra-include-dirs= and --extra-lib-dirs= to specify where it is.
the program sass is on my path. not sure if it should be specified elsewhere for cabal (or some other voodoo) to know where it is.
Adding the location of which sass to stack.yaml does not change anything
extra-include-dirs:
- /Users/nrolland/.rvm/gems/ruby-2.3.3/bin/
extra-lib-dirs:
- /Users/nrolland/.rvm/gems/ruby-2.3.3/bin/
$ stack build not sandboxed
hlibsass-0.1.5.0: configure
Progress: 1/2
-- While building package hlibsass-0.1.5.0 using:
/private/var/folders/9d/vgq7v77x27xb7v93gg85bcmc0000gn/T/stack94353/hlibsass-0.1.5.0/.stack-work/dist/x86_64-osx/Cabal-1.24.2.0/setup/setup --builddir=.stack-work/dist/x86_64-osx/Cabal-1.24.2.0 configure --with-ghc=/Users/nrolland/.stack/programs/x86_64-osx/ghc-8.0.2/bin/ghc --with-ghc-pkg=/Users/nrolland/.stack/programs/x86_64-osx/ghc-8.0.2/bin/ghc-pkg --with-ghcjs=/Users/nrolland/.local/bin/ghcjs --with-ghcjs-pkg=/Users/nrolland/.local/bin/ghcjs-pkg --user --package-db=clear --package-db=global --package-db=/Users/nrolland/.stack/snapshots/x86_64-osx/lts-8.5/8.0.2/pkgdb --package-db=/Users/nrolland/Sync/clones/hsass/.stack-work/install/x86_64-osx/lts-8.5/8.0.2/pkgdb --libdir=/Users/nrolland/Sync/clones/hsass/.stack-work/install/x86_64-osx/lts-8.5/8.0.2/lib --bindir=/Users/nrolland/Sync/clones/hsass/.stack-work/install/x86_64-osx/lts-8.5/8.0.2/bin --datadir=/Users/nrolland/Sync/clones/hsass/.stack-work/install/x86_64-osx/lts-8.5/8.0.2/share --libexecdir=/Users/nrolland/Sync/clones/hsass/.stack-work/install/x86_64-osx/lts-8.5/8.0.2/libexec --sysconfdir=/Users/nrolland/Sync/clones/hsass/.stack-work/install/x86_64-osx/lts-8.5/8.0.2/etc --docdir=/Users/nrolland/Sync/clones/hsass/.stack-work/install/x86_64-osx/lts-8.5/8.0.2/doc/hlibsass-0.1.5.0 --htmldir=/Users/nrolland/Sync/clones/hsass/.stack-work/install/x86_64-osx/lts-8.5/8.0.2/doc/hlibsass-0.1.5.0 --haddockdir=/Users/nrolland/Sync/clones/hsass/.stack-work/install/x86_64-osx/lts-8.5/8.0.2/doc/hlibsass-0.1.5.0 --dependency=base=base-4.9.1.0 -fexternalLibsass -f-sharedlibsass --extra-include-dirs=/Users/nrolland/.rvm/gems/ruby-2.3.3/bin --extra-lib-dirs=/Users/nrolland/.rvm/gems/ruby-2.3.3/bin --exact-configuration
Process exited with code: ExitFailure 1
Logs have been written to: /Users/nrolland/Sync/clones/hsass/.stack-work/logs/hlibsass-0.1.5.0.log
[1 of 2] Compiling Main ( /private/var/folders/9d/vgq7v77x27xb7v93gg85bcmc0000gn/T/stack94353/hlibsass-0.1.5.0/Setup.hs, /private/var/folders/9d/vgq7v77x27xb7v93gg85bcmc0000gn/T/stack94353/hlibsass-0.1.5.0/.stack-work/dist/x86_64-osx/Cabal-1.24.2.0/setup/Main.o )
[2 of 2] Compiling StackSetupShim ( /Users/nrolland/.stack/setup-exe-src/setup-shim-mPHDZzAJ.hs, /private/var/folders/9d/vgq7v77x27xb7v93gg85bcmc0000gn/T/stack94353/hlibsass-0.1.5.0/.stack-work/dist/x86_64-osx/Cabal-1.24.2.0/setup/StackSetupShim.o )
Linking /private/var/folders/9d/vgq7v77x27xb7v93gg85bcmc0000gn/T/stack94353/hlibsass-0.1.5.0/.stack-work/dist/x86_64-osx/Cabal-1.24.2.0/setup/setup ...
Configuring hlibsass-0.1.5.0...
setup: Missing dependency on a foreign library:
* Missing C library: sass
This problem can usually be solved by installing the system package that
provides this library (you may need the "-dev" version). If the library is
already installed but in a non-standard location then you can use the flags
--extra-include-dirs= and --extra-lib-dirs= to specify where it is.
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jakubfijalkowski
commented on August 25, 2024
Okay, I have no idea what is going on. I think this problem is unrelated to the previous one (the GHCi not being able to load hlibsass) and occurs only on LTS-8. The fun thing is, Travis is able to build and test hsass under GHC 8.0.2 and stack 1.4. I have been unable to do so just a second ago (up-to-date Mint 18.1), but after some magic (nuking .stack-work, building under LTS-6, nuking, building under LTS-8 and some other steps that I don't remember), it just started to work. After stack clean it stopped, but I think it might be repeatable.
I need to dig deeper into the newest stack, GHC and Cabal. I don't know when I will be able to do so, but I hope it won't take me another year (I have finally started to have some time for things other than my studies and work, but I don't know if it stays like that for long). I made a promise to fix this a couple of times now, but I failed miserably (different priorities) - sorry for that.
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nrolland
commented on August 25, 2024
That would be nice of course. Are other packages relying on external libraries relying on the same specific setup.hs ? If it really is necessary to have an ad-hoc setup, having a nix option flag might be a way that to normalize the behavior across platforms (and delegating normalization), as you can abstract the location business by shelling out some nix commands
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jakubfijalkowski
commented on August 25, 2024
If I understand your question correctly - yes, other libs do rely on a custom Setup.hs, if one of the dependencies do have one. Because libsass wasn't available as a distro package (at least not in Ubuntu, but that was 2 years ago), I have chosen to use custom setup and compile and link with libsass manually. There are many issues with this approach, but I had (or haven't knew about) no other choice.
Unfortunately, I know nothing about nix, but I'll check it out.
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jakubfijalkowski
commented on August 25, 2024
Okay, the problem with compilation should be fixed in hlibsass 0.1.5.2 and hsass 0.4.1. Could you check, please?
Also, with GHC 8.0.2, Cabal-1.24 and stack 1.4 (i.e LTS Haskell 8.5), GHCi seems to work, even with statically (and locally-built) linked libsass. Can you confirm?
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nrolland
commented on August 25, 2024
I could compile on stack 1.4 with hlibsass 0.1.5.2 both hsass and my project, provided I do not specify
flags:
hlibsass:
externalLibsass: true
ps : what's the best reference for what's going on in Setup.hs in your opinion ?
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jakubfijalkowski
commented on August 25, 2024
What happens when you set the externalLibsass flag to true? Do you have libsass.a on the search path? It works for me (Linux Mint 18.1 with LibSass 3.3.4 from Ubuntu Xenial repo), but I am currently unable to check on macOS.
Moreover - do GHCi work now?
Ad. PS - do you mean Setup.hs from hlibsass or generally custom setup scripts? If generally - I ended up reading Cabal code, doing printf-style debugging and just experimenting. I couldn't find any comprehensive documentation for this.
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nrolland
commented on August 25, 2024
External option works on this project hsass by adding to stack.yaml
extra-lib-dirs: #this is passed to GHC
- /usr/local/lib #where your libs are
flags:
hlibsass:
externalLibsass: true
I could compile once my other project but upon testing other ways to install libsass, I had the following error
$ stack build
xquant2-0.1.0.0: build (exe)
Log files have been written to: /Users/nrolland/Sync/clones/xquant2/.stack-work/logs/
-- While building package xquant2-0.1.0.0 using:
/Users/nrolland/.stack/setup-exe-cache/x86_64-osx/Cabal-simple_mPHDZzAJ_1.24.2.0_ghc-8.0.2 --builddir=.stack-work/dist/x86_64-osx/Cabal-1.24.2.0 build exe:xquant2 --ghc-options " -ddump-hi -ddump-to-file"
Process exited with code: ExitFailure 1
Logs have been written to: /Users/nrolland/Sync/clones/xquant2/.stack-work/logs/xquant2-0.1.0.0.log
Preprocessing executable 'xquant2' for xquant2-0.1.0.0...
Linking .stack-work/dist/x86_64-osx/Cabal-1.24.2.0/build/xquant2/xquant2 ...
Undefined symbols for architecture x86_64:
"_sass_option_get_plugin_path", referenced from:
_chb9_info in libHShlibsass-0.1.5.2-1oW1V9GIDOwBgO0dG4ULhr.a(Context.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
`gcc' failed in phase `Linker'. (Exit code: 1)
Which I imagined comes from some mismatch between expected libsass version of 'hlibsass'.
Although I see plugin_path both in 'current' libsass and in 'current' hlibsass
It turned out it that installing via brew install --HEAD libsass caused the failure, while brew install libsass works fine. Using head and pray is plain wrong. Nix is really great for that. Cross platform, it really pins down which version gets used. I guess that's a prime exemple for the nix facility in stack.
Thanks for having a look at that Setup.hs, this is typically out of reach for casual users.
Even for me, although I am not so unfamiliar with Haskell, I am in a phase where I dont use everyday right now and just wanted to use it casually... So thanks ;)
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jakubfijalkowski
commented on August 25, 2024
Big thanks for the check. I consider this issue closed. :)
Next - nix. Will look at it sometime soon. The probable version mismatch was the thing that I've wanted to avoid (the other being libsass not available as a precompiled package, but that was long ago), hence the custom setup. :)
Yeah, Setup.hs is quite cryptic, but it's just scary and not that hard, really. I don't consider myself a "professional Haskeller" (I haven't used it for anything serious yet), but still been able to grasp it. Cabal people did a great job making the source code readable.
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dantiel
commented on August 25, 2024
impossible to link on High Siierra. anyway its still easily possible to use sass with the shell wrapper and just read from stdin sass -s.
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Related Issues (9)
- hlibsass-0.1.2.0 test suite failure HOT 1
- Distinguish between quoted and unquoted strings HOT 2
- Encoding and decoding of c strings is affected by locale settings HOT 3
- What do importPath and importBase in SassImport really mean? HOT 2
- Link to libsass is broken HOT 1
- Unable to run compileFile from GHCi on OS X HOT 3
- Issues building hsass on windows HOT 3
- Including encoding information in text is error-prone HOT 4
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