devtools nix flake error LLVM_SYS_130_PREFIX · beginners

Following the nix instructions on macos aarch64, I had no trouble getting the repl working, but I'm struggling with the devtools. As you can see below, LLVM_SYS_130_PREFIX works fine from inside the roc environment, but can't be found when building roc-devtools. Any help would be appreciated.

roc % nix develop
Restored session: Sat 23 Sep 2023 09:55:30 BST
Johns-MacBook-Pro:roc john$ echo $LLVM_SYS_130_PREFIX
/nix/store/fvs60mzmhnqgpj2js7qij36irnwq2qpw-llvm-13.0.1-dev
Johns-MacBook-Pro:roc john$ exit
exit

Saving session...
...saving history...truncating history files...
...completed.
roc % cd ../roc-devtools
roc-devtools % nix develop
warning: Git tree '/Users/john/Git/roc-devtools' is dirty
error:
       … while calling the 'derivationStrict' builtin

         at /builtin/derivation.nix:9:12: (source not available)

       … while evaluating derivation 'nix-shell'
         whose name attribute is located at /nix/store/8qr2x85z4rkf7rca3pk1dfyzsi60j7r2-source/pkgs/stdenv/generic/make-derivation.nix:300:7

       … while evaluating attribute 'LLVM_SYS_130_PREFIX' of derivation 'nix-shell'

         at /nix/store/jhcviv44hxx2bqbx4s439j92cdbfxnmw-source/flake.nix:48:11:

           47|           # env vars
           48|           LLVM_SYS_130_PREFIX = rocShell.LLVM_SYS_130_PREFIX;
             |           ^
           49|           NIX_GLIBC_PATH = rocShell.NIX_GLIBC_PATH;

       error: attribute 'LLVM_SYS_130_PREFIX' missing

       at /nix/store/jhcviv44hxx2bqbx4s439j92cdbfxnmw-source/flake.nix:48:33:

           47|           # env vars
           48|           LLVM_SYS_130_PREFIX = rocShell.LLVM_SYS_130_PREFIX;
             |                                 ^
           49|           NIX_GLIBC_PATH = rocShell.NIX_GLIBC_PATH;

Anton (Sep 23 2023 at 09:31):

Anton (Sep 23 2023 at 16:31):

Can you try out my devtools-nix-fix branch @John Colvin? It's best to start from scratch with the steps mentioned in the README .

John Colvin (Sep 23 2023 at 19:36):

roc-devtools % nix develop
warning: Git tree '/Users/john/Git/roc-devtools' is dirty
error:
       … while calling the 'derivationStrict' builtin

         at /builtin/derivation.nix:9:12: (source not available)

       … while evaluating derivation 'nix-shell'
         whose name attribute is located at /nix/store/8qr2x85z4rkf7rca3pk1dfyzsi60j7r2-source/pkgs/stdenv/generic/make-derivation.nix:300:7

       … while evaluating attribute 'nativeBuildInputs' of derivation 'nix-shell'

         at /nix/store/8qr2x85z4rkf7rca3pk1dfyzsi60j7r2-source/pkgs/stdenv/generic/make-derivation.nix:344:7:

          343|       depsBuildBuild              = lib.elemAt (lib.elemAt dependencies 0) 0;
          344|       nativeBuildInputs           = lib.elemAt (lib.elemAt dependencies 0) 1;
             |       ^
          345|       depsBuildTarget             = lib.elemAt (lib.elemAt dependencies 0) 2;

       error: Package ‘gdb-13.2’ in /nix/store/8qr2x85z4rkf7rca3pk1dfyzsi60j7r2-source/pkgs/development/tools/misc/gdb/default.nix:140 is not available on the requested hostPlatform:
         hostPlatform.config = "aarch64-apple-darwin"
         package.meta.platforms = [
           "aarch64-linux"
           "armv5tel-linux"
           "armv6l-linux"
           "armv7a-linux"
           "armv7l-linux"
           "i686-linux"
           "loongarch64-linux"
           "m68k-linux"
           "microblaze-linux"
           "microblazeel-linux"
           "mips-linux"
           "mips64-linux"
           "mips64el-linux"
           "mipsel-linux"
           "powerpc64-linux"
           "powerpc64le-linux"
           "riscv32-linux"
           "riscv64-linux"
           "s390-linux"
           "s390x-linux"
           "x86_64-linux"
           "i686-cygwin"
           "x86_64-cygwin"
           "x86_64-darwin"
         ]
         package.meta.badPlatforms = [ ]
       , refusing to evaluate.

       a) To temporarily allow packages that are unsupported for this system, you can use an environment variable
          for a single invocation of the nix tools.

            $ export NIXPKGS_ALLOW_UNSUPPORTED_SYSTEM=1

        Note: For `nix shell`, `nix build`, `nix develop` or any other Nix 2.4+
        (Flake) command, `--impure` must be passed in order to read this
        environment variable.

       b) For `nixos-rebuild` you can set
         { nixpkgs.config.allowUnsupportedSystem = true; }
       in configuration.nix to override this.

       c) For `nix-env`, `nix-build`, `nix-shell` or any other Nix command you can add
         { allowUnsupportedSystem = true; }
       to ~/.config/nixpkgs/config.nix.

John Colvin (Sep 24 2023 at 11:52):

I removed gdb and vadimcn.vscode-lldb from flake.nix, finally got it building. I think maybe the template needs some adjustment for macos-aarch64 users.

Anton (Sep 25 2023 at 09:45):

Anton (Sep 26 2023 at 15:36):

Your fixes have been applied @John Colvin and are now available on the main branch. I've also added a test for the devtools flake on macos aarch64.

Stream: beginners