Compilation on macOS broken?

[sternenseemann]

I've tried to get FractalArt to compile on darwin with nix using the following override:

  FractalArt = overrideCabal super.FractalArt (drv: {
    executableSystemDepends = [
      darwin.libobjc
    ] ++ (drv.librarySystemDepends or []);
    executableFrameworkDepends = [
      darwin.apple_sdk.frameworks.AppKit
    ] ++ (drv.executableFrameworkDepends or []);
  });

Which results in the following build log:

setupCompilerEnvironmentPhase
Build with /nix/store/66sk6q7j0gd3v83ixraisd25mzhi3l0c-ghc-8.10.4.
unpacking sources
unpacking source archive /nix/store/hhvy3bx21bgiymw44c7jaxgmwqd7sw8p-FractalArt-0.2.0.3.tar.gz
source root is FractalArt-0.2.0.3
setting SOURCE_DATE_EPOCH to timestamp 1462540030 of file FractalArt-0.2.0.3/FractalArt.cabal
patching sources
compileBuildDriverPhase
setupCompileFlags: -package-db=/private/tmp/nix-build-FractalArt-0.2.0.3.drv-0/setup-package.conf.d -j1 -threaded -rtsopts
[1 of 1] Compiling Main             ( Setup.hs, /private/tmp/nix-build-FractalArt-0.2.0.3.drv-0/Main.o )
Linking Setup ...
configuring
configureFlags: --verbose --prefix=/nix/store/wxxxrv18ygsh821ml2kb5ym8vzkxny8g-FractalArt-0.2.0.3 --libdir=$prefix/lib/$compiler --libsubdir=$abi/$libname --docdir=/nix/store/88i0j3l35cqc7970lvp8kynsbsbqbpim-FractalArt-0.2.0.3-doc/share/doc/FractalArt-0.2.0.3 --with-gcc=clang --package-db=/private/tmp/nix-build-FractalArt-0.2.0.3.drv-0/package.conf.d --ghc-options=-j1 --disable-split-objs --enable-library-profiling --profiling-detail=exported-functions --disable-profiling --enable-shared --disable-coverage --enable-static --disable-executable-dynamic --enable-tests --disable-benchmarks --enable-library-vanilla --disable-library-for-ghci --extra-include-dirs=/nix/store/mw8cdz4nbq523xa33zyamsylci73cd63-libcxx-7.1.0-dev/include --extra-lib-dirs=/nix/store/64d69jqbz4s8ziqbpam41sd70w338ars-libcxx-7.1.0/lib --extra-include-dirs=/nix/store/i8mm0yixkl8c10a4kmwz68zp99cb3nrs-libcxxabi-7.1.0-dev/include --extra-lib-dirs=/nix/store/6q1rhqvyzxb3j5pb1h4qxsa0hh1i45wv-libcxxabi-7.1.0/lib --extra-include-dirs=/nix/store/xcix5ygyy05z2q9v6901xlm4ljw2yvs8-compiler-rt-libc-7.1.0-dev/include --extra-lib-dirs=/nix/store/pdd276ydvg3zvky684wp78q8zfjkc6d4-compiler-rt-libc-7.1.0/lib --extra-lib-dirs=/nix/store/kdydav4gqzd91qlpprnjascbs5hs8qmg-ncurses-6.2/lib --extra-lib-dirs=/nix/store/680v3dy36ghk5szlz07r2s54b8r119pi-libffi-3.3/lib --extra-lib-dirs=/nix/store/ka12q1srbmcrc5fm7kn5slgwnajppppc-gmp-6.2.1/lib --extra-include-dirs=/nix/store/pgnb12anscja205zycd2l994028vas2b-libiconv-50/include --extra-lib-dirs=/nix/store/pgnb12anscja205zycd2l994028vas2b-libiconv-50/lib --extra-include-dirs=/nix/store/08iavk27gxjf5kwpzisj9fqhbfqxg0r1-objc4-709.1/include --extra-lib-dirs=/nix/store/08iavk27gxjf5kwpzisj9fqhbfqxg0r1-objc4-709.1/lib --extra-framework-dirs=/nix/store/39y8lss2p8dlhqq0il46z2dpgmag17h4-apple-framework-AppKit/Library/Frameworks --extra-framework-dirs=/nix/store/w7nyyfn0n0nxn5pbr65sakcrckl1jv8k-apple-framework-ApplicationServices/Library/Frameworks --extra-framework-dirs=/nix/store/r2f98pgsb6vk53ha9cipq5yl64qcg5i2-apple-framework-CoreGraphics/Library/Frameworks --extra-framework-dirs=/nix/store/5a8mq3rrryr8c3zii078qg7p7rp41xdg-apple-framework-Accelerate/Library/Frameworks --extra-framework-dirs=/nix/store/cghxll8lpzg7x0x7nhzyrqdk4q8xhiwz-apple-framework-CoreWLAN/Library/Frameworks --extra-framework-dirs=/nix/store/dn63dxzz06k8g39lnvankk5schq8b97v-apple-framework-SecurityFoundation/Library/Frameworks --extra-framework-dirs=/nix/store/dvs74mhgp5kgk5v2is05sizgwr9p3bb7-apple-framework-IOBluetooth/Library/Frameworks --extra-framework-dirs=/nix/store/8pwz6jq4zpqlzsz0q0xwz69hlsypyyvq-apple-framework-CoreBluetooth/Library/Frameworks --extra-framework-dirs=/nix/store/yy952p18g4hvkgwd3hh8c4rql8ic5bwk-apple-framework-IOKit/Library/Frameworks --extra-framework-dirs=/nix/store/yy952p18g4hvkgwd3hh8c4rql8ic5bwk-apple-framework-IOKit/Library/Frameworks --extra-framework-dirs=/nix/store/hjx5rb2n7l730b2qxwbh3bn875qqj1x7-apple-framework-IOSurface/Library/Frameworks --extra-include-dirs=/nix/store/q7awcbl6bkn34glqalr02gkid537ky0f-apple-lib-xpc/include --extra-framework-dirs=/nix/store/1cl9r959bj5pz9y4d6dzszch5yadq3vg-apple-framework-SystemConfiguration/Library/Frameworks --extra-framework-dirs=/nix/store/293i28pj9jswm0bgx7qdnbpkckz72kwb-apple-framework-Security/Library/Frameworks --extra-framework-dirs=/nix/store/9sfxgkvasbzsl6ny0i9m12ipq0qccxl9-apple-framework-CoreServices/Library/Frameworks --extra-framework-dirs=/nix/store/svnhbzykd9wfglyc8jzkc7683pyhx8ka-apple-framework-CFNetwork/Library/Frameworks --extra-framework-dirs=/nix/store/m17pjjxfq8gx9anyqbyw3v72zzaajqqr-apple-framework-CoreAudio/Library/Frameworks --extra-framework-dirs=/nix/store/hbk6lpggwx5v1am7r0nwj14w8rr6xki0-apple-framework-CoreData/Library/Frameworks --extra-framework-dirs=/nix/store/f9cchxc5hkk9p4n6y45cw4f3nf3w3va1-apple-framework-CoreFoundation/Library/Frameworks --extra-framework-dirs=/nix/store/s7166g2g4ay8zij3ih08xw25hwmhw13f-apple-framework-DiskArbitration/Library/Frameworks --extra-framework-dirs=/nix/store/wkxjczcm6h9gppa6mc097jm1rza4a0fz-apple-framework-NetFS/Library/Frameworks --extra-framework-dirs=/nix/store/nr0zr4wdd1a5w4rqy2908kgn9j1vlcm8-apple-framework-OpenDirectory/Library/Frameworks --extra-framework-dirs=/nix/store/6wjm2ml2sq0fwsw954mj8q5h7yrhhxb6-apple-framework-ServiceManagement/Library/Frameworks --extra-framework-dirs=/nix/store/57hx4c6dv3vd0g2gjf9gqzld1fr4ncm2-apple-framework-CoreText/Library/Frameworks --extra-framework-dirs=/nix/store/bgq90w547d89zy496kyisckyx3y42cly-apple-framework-ImageIO/Library/Frameworks --extra-framework-dirs=/nix/store/pfj4xw40bgfjxr014ab4sj50615n2jw1-apple-framework-AudioToolbox/Library/Frameworks --extra-framework-dirs=/nix/store/zwha875pf1mah7lb52qxly4nf5d1gpmk-apple-framework-CoreMIDI/Library/Frameworks --extra-framework-dirs=/nix/store/xpzbd9lkkl3152xs8pgp72w07nvsjaa1-apple-framework-AudioUnit/Library/Frameworks --extra-framework-dirs=/nix/store/4k7hfca13xys2gckrsf96y8v4ln5w04c-apple-framework-Carbon/Library/Frameworks --extra-framework-dirs=/nix/store/b73xlnighh544ah15qgpn2id95ibskfc-apple-framework-Foundation/Library/Frameworks --extra-include-dirs=/nix/store/08iavk27gxjf5kwpzisj9fqhbfqxg0r1-objc4-709.1/include --extra-lib-dirs=/nix/store/08iavk27gxjf5kwpzisj9fqhbfqxg0r1-objc4-709.1/lib --extra-framework-dirs=/nix/store/fpga8if76brxvgn30z06c8haa60rnmlb-apple-framework-QuartzCore/Library/Frameworks --extra-framework-dirs=/nix/store/y7bmnccssmbxqz559rqqnb9ippd4p5rw-apple-framework-CoreImage/Library/Frameworks --extra-framework-dirs=/nix/store/sfvln72zl1wk9d8lz9l29addvzdgi4a7-apple-framework-CoreVideo/Library/Frameworks --extra-framework-dirs=/nix/store/48b91qzw4wwm851il6b0mqvc6c04xp65-apple-framework-OpenGL/Library/Frameworks --extra-framework-dirs=/nix/store/7fq6iy6xzygy0m94krccdgi29iz3dpv1-apple-framework-Metal/Library/Frameworks --extra-framework-dirs=/nix/store/pa4zkrwmswyiz71q9a8mhf6i9kpwawdi-apple-framework-OpenCL/Library/Frameworks --extra-framework-dirs=/nix/store/mlj2ij9gqrk1h7y9ixsfn4b1b5dqvlap-apple-framework-UIFoundation/Library/Frameworks --extra-include-dirs=/nix/store/3qzl4kq8yi6vwcrsff2s27v67j8ysnp6-libX11-1.7.0-dev/include --extra-lib-dirs=/nix/store/3qzl4kq8yi6vwcrsff2s27v67j8ysnp6-libX11-1.7.0-dev/lib --extra-include-dirs=/nix/store/gyz5pnynjsh1gj13ib6qrfwvjii3prw1-xorgproto-2021.3/include --extra-include-dirs=/nix/store/spb7wn7kd6j3a5mnv6b8b02xzf10cim2-libxcb-1.14-dev/include --extra-lib-dirs=/nix/store/spb7wn7kd6j3a5mnv6b8b02xzf10cim2-libxcb-1.14-dev/lib --extra-lib-dirs=/nix/store/mb6xzkbwamq51lbc9swxwbv7zdgnvzp8-libxcb-1.14/lib --extra-lib-dirs=/nix/store/77dwv9vvxxy2nksb3gy6wb0kq6z3v97x-libX11-1.7.0/lib --extra-framework-dirs=/nix/store/f7f3gz636cqxkav7cy1nlldkwv2b22n1-swift-corefoundation/Library/Frameworks
Using Parsec parser
Configuring FractalArt-0.2.0.3...
Dependency JuicyPixels -any: using JuicyPixels-3.3.5
Dependency base >4 && <5: using base-4.14.1.0
Dependency directory -any: using directory-1.3.6.0
Dependency filepath -any: using filepath-1.4.2.1
Dependency mwc-random -any: using mwc-random-0.14.0.0
Dependency primitive -any: using primitive-0.7.1.0
Dependency random -any: using random-1.2.0
Dependency vector -any: using vector-0.12.3.0
Source component graph: component exe:FractalArt
Configured component graph:
    component FractalArt-0.2.0.3-5FQHmKvRZTs9LKdFPKk9aZ-FractalArt
        include JuicyPixels-3.3.5-LgFab8Qpa6TC01PG99Wtwj
        include base-4.14.1.0
        include directory-1.3.6.0
        include filepath-1.4.2.1
        include mwc-random-0.14.0.0-9StmDrCPrGJExSaB8A4gFD
        include primitive-0.7.1.0-Jxsyd70oUttYiCXCa0HqV
        include random-1.2.0-6zIdUIrmHInBiqbyqpDYsu
        include vector-0.12.3.0-GzQsO3hyEsQ1m59KXdGHEQ
Linked component graph:
    unit FractalArt-0.2.0.3-5FQHmKvRZTs9LKdFPKk9aZ-FractalArt
        include JuicyPixels-3.3.5-LgFab8Qpa6TC01PG99Wtwj
        include base-4.14.1.0
        include directory-1.3.6.0
        include filepath-1.4.2.1
        include mwc-random-0.14.0.0-9StmDrCPrGJExSaB8A4gFD
        include primitive-0.7.1.0-Jxsyd70oUttYiCXCa0HqV
        include random-1.2.0-6zIdUIrmHInBiqbyqpDYsu
        include vector-0.12.3.0-GzQsO3hyEsQ1m59KXdGHEQ
Ready component graph:
    definite FractalArt-0.2.0.3-5FQHmKvRZTs9LKdFPKk9aZ-FractalArt
        depends JuicyPixels-3.3.5-LgFab8Qpa6TC01PG99Wtwj
        depends base-4.14.1.0
        depends directory-1.3.6.0
        depends filepath-1.4.2.1
        depends mwc-random-0.14.0.0-9StmDrCPrGJExSaB8A4gFD
        depends primitive-0.7.1.0-Jxsyd70oUttYiCXCa0HqV
        depends random-1.2.0-6zIdUIrmHInBiqbyqpDYsu
        depends vector-0.12.3.0-GzQsO3hyEsQ1m59KXdGHEQ
Using Cabal-3.2.1.0 compiled by ghc-8.10
Using compiler: ghc-8.10.4
Using install prefix:
/nix/store/wxxxrv18ygsh821ml2kb5ym8vzkxny8g-FractalArt-0.2.0.3
Executables installed in:
/nix/store/wxxxrv18ygsh821ml2kb5ym8vzkxny8g-FractalArt-0.2.0.3/bin
Libraries installed in:
/nix/store/wxxxrv18ygsh821ml2kb5ym8vzkxny8g-FractalArt-0.2.0.3/lib/ghc-8.10.4/x86_64-osx-ghc-8.10.4/FractalArt-0.2.0.3
Dynamic Libraries installed in:
/nix/store/wxxxrv18ygsh821ml2kb5ym8vzkxny8g-FractalArt-0.2.0.3/lib/ghc-8.10.4/x86_64-osx-ghc-8.10.4
Private executables installed in:
/nix/store/wxxxrv18ygsh821ml2kb5ym8vzkxny8g-FractalArt-0.2.0.3/libexec/x86_64-osx-ghc-8.10.4/FractalArt-0.2.0.3
Data files installed in:
/nix/store/wxxxrv18ygsh821ml2kb5ym8vzkxny8g-FractalArt-0.2.0.3/share/x86_64-osx-ghc-8.10.4/FractalArt-0.2.0.3
Documentation installed in:
/nix/store/88i0j3l35cqc7970lvp8kynsbsbqbpim-FractalArt-0.2.0.3-doc/share/doc/FractalArt-0.2.0.3
Configuration files installed in:
/nix/store/wxxxrv18ygsh821ml2kb5ym8vzkxny8g-FractalArt-0.2.0.3/etc
No alex found
Using ar found on system at:
/nix/store/9xawf09c90761xkxv8r1b55ja46x4wr3-cctools-binutils-darwin-949.0.1/bin/ar
No c2hs found
No cpphs found
No doctest found
Using gcc version 4.2.1 given by user at:
/nix/store/d4p8v32sivk3zj3jklx3irswbwwigxcd-clang-wrapper-7.1.0/bin/clang
Using ghc version 8.10.4 found on system at:
/nix/store/66sk6q7j0gd3v83ixraisd25mzhi3l0c-ghc-8.10.4/bin/ghc
Using ghc-pkg version 8.10.4 found on system at:
/nix/store/66sk6q7j0gd3v83ixraisd25mzhi3l0c-ghc-8.10.4/bin/ghc-pkg
No ghcjs found
No ghcjs-pkg found
No greencard found
Using haddock version 2.24.0 found on system at:
/nix/store/66sk6q7j0gd3v83ixraisd25mzhi3l0c-ghc-8.10.4/bin/haddock
No happy found
Using haskell-suite found on system at: haskell-suite-dummy-location
Using haskell-suite-pkg found on system at: haskell-suite-pkg-dummy-location
No hmake found
Using hpc version 0.68 found on system at:
/nix/store/66sk6q7j0gd3v83ixraisd25mzhi3l0c-ghc-8.10.4/bin/hpc
Using hsc2hs version 0.68.7 found on system at:
/nix/store/66sk6q7j0gd3v83ixraisd25mzhi3l0c-ghc-8.10.4/bin/hsc2hs
No hscolour found
No jhc found
Using ld found on system at:
/nix/store/7qk9mqi411ip2jh10d1bbj7x7mgrfksg-cctools-binutils-darwin-wrapper-949.0.1/bin/ld
No pkg-config found
Using runghc version 8.10.4 found on system at:
/nix/store/66sk6q7j0gd3v83ixraisd25mzhi3l0c-ghc-8.10.4/bin/runghc
Using strip found on system at:
/nix/store/9xawf09c90761xkxv8r1b55ja46x4wr3-cctools-binutils-darwin-949.0.1/bin/strip
Using tar found on system at:
/nix/store/y215y67kv3z408mdja2fy3xkk0maqhx3-gnutar-1.34/bin/tar
No uhc found
building
Preprocessing executable 'FractalArt' for FractalArt-0.2.0.3..
Building executable 'FractalArt' for FractalArt-0.2.0.3..
[1 of 3] Compiling FractalArt.ForeignFunctions ( src/FractalArt/ForeignFunctions.hs, dist/build/FractalArt/FractalArt-tmp/FractalArt/ForeignFunctions.o )
ld: warning: /nix/store/pgnb12anscja205zycd2l994028vas2b-libiconv-50/lib/libiconv.dylib, ignoring unexpected dylib file
ld: warning: /nix/store/f9cchxc5hkk9p4n6y45cw4f3nf3w3va1-apple-framework-CoreFoundation/Library/Frameworks/CoreFoundation.framework/CoreFoundation.tbd, ignoring unexpected dylib text stub file
[2 of 3] Compiling FractalArt.SimpleCommandParser ( src/FractalArt/SimpleCommandParser.hs, dist/build/FractalArt/FractalArt-tmp/FractalArt/SimpleCommandParser.o )
[3 of 3] Compiling Main             ( src/Main.hs, dist/build/FractalArt/FractalArt-tmp/Main.o )

cbits/wallpaper.m:3:9: error:
     fatal error: module 'AppKit' not found
  |
3 | @import AppKit;
  |         ^
@import AppKit;
 ~~~~~~~^~~~~~
1 error generated.
`cc' failed in phase `C Compiler'. (Exit code: 1)
builder for '/nix/store/mm01r7j2hx1pr085jwjnxn1dqz5w0q40-FractalArt-0.2.0.3.drv' failed with exit code 1

[TomSmeets]

Hi,
I have to admit that I don't know much about Mac OS and Objective C.

Ill look around the documentation and see if I can figure out the issue.
Is it somehow possible for me to reproduce this issue without owning a MacOS machine?

The code for Mac OS was contributed by @codebje in #1.
@codebje if you have some free time, maybe you could take a quick look?

Tom

[codebje]

I'm not able to help with nix issues to any substantial degree - it needs more disk space than I have available to install and use, and more head space than I have available to understand and debug.

You can still build FractalArt on OS X using stack --no-nix build though, if that's useful as a work-around.

[TomSmeets]

Thanks for the feedback codebje. Good to hear that it does compile normally without nix.

It seems that the code has problems finding the AppKit module. After looking a bit into Objective-C if found that the @import is a newer version of #import. It could be that this causes issues for some reason. I also found one instance of this inside nixpkgs. The commit did not state the reason for why the sed was used, but they might have had the same issue.

I would suggest @sternenseemann that you try the following commit 5170bad which is available in the nix-macos-fix branch.

diff --git a/cbits/wallpaper.m b/cbits/wallpaper.m
index ee744f9..d580f36 100644
--- a/cbits/wallpaper.m
+++ b/cbits/wallpaper.m
@@ -1,6 +1,6 @@
 #include <stdlib.h>
 
-@import AppKit;
+#import <AppKit/AppKit.h>
 
 NSSize getRootWindowSize() {
   @autoreleasepool {

If that doesn't work, then try adding the following to the nix override:

NIX_LDFLAGS = "-framework AppKit";

[sternenseemann]

That does work, but now we have a new linker error:

Linking dist/build/FractalArt/FractalArt ...
Undefined symbols for architecture x86_64:
  "_OBJC_CLASS_$_NSString", referenced from:
      objc-class-ref in wallpaper.o
  "_OBJC_CLASS_$_NSWorkspace", referenced from:
      objc-class-ref in wallpaper.o
  "_OBJC_CLASS_$_NSScreen", referenced from:
      objc-class-ref in wallpaper.o
ld: symbol(s) not found for architecture x86_64
clang-7: error: linker command failed with exit code 1 (use -v to see invocation)
`cc' failed in phase `Linker'. (Exit code: 1)

darwin.libobjc is in librarySystemDepends already (removing it doesn't change the error though), so not sure what we should do here. Maybe ghc is not passing a flag or something.