OSX: C shared library linked as relative

[domenkozar]

I'm building https://github.com/serokell/rocksdb-haskell/ with just Nix and also with Stack (+Nix). Both fail to build even when rocksdb lib forder is passed correctly:

configureFlags: --verbose --prefix=/nix/store/8mlm6x003sj8781qf688qx031yjysa83-rocksdb-0.1.0 --libdir=$prefix/lib/$compiler --libsubdir=$pkgid --with-gcc=clang --package-db=/private/var/folders/v0/ydgx93x96375ws14_16p93gr0000gq/T/nix-build-rocksdb-0.1.0.
drv-1/package.conf.d --ghc-option=-optl=-Wl,-headerpad_max_install_names --disable-split-objs --enable-library-profiling --disable-profiling --enable-shared --enable-library-vanilla --enable-executable-dynamic --enable-tests --extra-include-dirs=/nix/sto
re/mj95pj47pjjmxgdzzfp2357zsylw9m3s-rocksdb-4.13/include --extra-lib-dirs=/nix/store/mj95pj47pjjmxgdzzfp2357zsylw9m3s-rocksdb-4.13/lib

Build fails as:

dyld: Library not loaded: librocksdb.4.13.dylib
  Referenced from: /private/var/folders/v0/ydgx93x96375ws14_16p93gr0000gq/T/nix-build-rocksdb-0.1.0.drv-1/rocksdb-haskell-0a5bced/dist/build/Database/RocksDB/C_hsc_make
  Reason: image not found
running dist/build/Database/RocksDB/C_hsc_make failed (exit code -5)
command was: dist/build/Database/RocksDB/C_hsc_make  >dist/build/Database/RocksDB/C.hs
note: keeping build directory _/private/var/folders/v0/ydgx93x96375ws14_16p93gr0000gq/T/nix-build-rocksdb-0.1.0.drv-1_

This is a masked error, really it doesn't find rocksdb library because it's not linked as absolute path:

$ $(which otool) -L /private/var/folders/v0/ydgx93x96375ws14_16p93gr0000gq/T/nix-build-rocksdb-0.1.0.drv-1/rocksdb-haskell-0a5bced/dist/build/Database/RocksDB/C_hsc_make                                                 
/private/var/folders/v0/ydgx93x96375ws14_16p93gr0000gq/T/nix-build-rocksdb-0.1.0.drv-1/rocksdb-haskell-0a5bced/dist/build/Database/RocksDB/C_hsc_make:
        librocksdb.4.13.dylib (compatibility version 0.0.0, current version 0.0.0)
        /nix/store/wngzdrk0b53q24b5infy1g2j4d5mh1mx-libiconv-osx-10.11.6/lib/libiconv.dylib (compatibility version 7.0.0, current version 7.0.0)
        /nix/store/f0m22bm6x14fq68jxnzw2w9dca83jfk7-gmp-6.1.1/lib/libgmp.10.dylib (compatibility version 14.0.0, current version 14.1.0)
        /nix/store/qsq0qzfi0dib713a83adz70scf5m3z1a-Libsystem-osx-10.11.6/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1226.10.1)

Following work around works that sets the path back to absolute:

LnL7/nixpkgs@6edec59

[LnL7]

/participate

[Ericson2314]

Might this relate to relocatable builds?

[LnL7]

Possibly, is there some way to disable that? I'm also not sure how this would work outside of nix.

[domenkozar]

I've found out the culprit (thanks @christiaanb).

A bit more background how this is fixed in Nix

How rocksdb was fixed

General solution for Nix