Hey All,
Having some trouble compiling a pretty simple bevy app with nix-shell. I keep running into this compiler error:
Compiling serde_derive v1.0.183
Compiling thiserror v1.0.44
Compiling bytemuck v1.13.1
Compiling bevy_reflect_derive v0.10.1
Compiling bevy_ecs_macros v0.10.1
Compiling objc_exception v0.1.2
Compiling sysinfo v0.28.4
Compiling fsevent-sys v4.1.0
Compiling filetime v0.2.22
Compiling num-integer v0.1.45
Compiling block v0.1.6
The following warnings were emitted during compilation:
warning: extern/exception.m:1:10: fatal error: 'objc/objc.h' file not found
warning: #include <objc/objc.h>
warning: ^~~~~~~~~~~~~
warning: 1 error generated.
error: failed to run custom build command for `objc_exception v0.1.2`
Caused by:
process didn't exit successfully: `/Users/andrewplaza/Projects/insipx/portfolio-os/target/debug/build/objc_exception-967dc747fad11fc1/build-script-build` (exit status: 1)
--- stdout
TARGET = Some("aarch64-apple-darwin")
OPT_LEVEL = Some("3")
HOST = Some("aarch64-apple-darwin")
cargo:rerun-if-env-changed=CC_aarch64-apple-darwin
CC_aarch64-apple-darwin = None
cargo:rerun-if-env-changed=CC_aarch64_apple_darwin
CC_aarch64_apple_darwin = None
cargo:rerun-if-env-changed=HOST_CC
HOST_CC = None
cargo:rerun-if-env-changed=CC
CC = None
cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
CRATE_CC_NO_DEFAULTS = None
DEBUG = Some("true")
CARGO_CFG_TARGET_FEATURE = Some("aes,crc,dit,dotprod,dpb,dpb2,fcma,fhm,flagm,fp16,frintts,jsconv,lor,lse,neon,paca,pacg,pan,pmuv3,ras,rcpc,rcpc2,rdm,sb,sha2,sha3,ssbs,v8.1a,v8.2a,v8.3a,v8.4a,vh")
cargo:rerun-if-env-changed=CFLAGS_aarch64-apple-darwin
CFLAGS_aarch64-apple-darwin = None
cargo:rerun-if-env-changed=CFLAGS_aarch64_apple_darwin
CFLAGS_aarch64_apple_darwin = None
cargo:rerun-if-env-changed=HOST_CFLAGS
HOST_CFLAGS = None
cargo:rerun-if-env-changed=CFLAGS
CFLAGS = Some("-iframework /nix/store/4cxlahsfynhsvh4057p2y80dcg7gjm4h-devenv-profile/Library/Frameworks")
running: "cc" "-O3" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-2" "-fno-omit-frame-pointer" "-arch" "arm64" "-iframework" "/nix/store/4cxlahsfynhsvh4057p2y80dcg7gjm4h-devenv-profile/Library/Frameworks" "-o" "/Users/andrewplaza/Projects/insipx/portfolio-os/target/debug/build/objc_exception-6a080bf62f73939a/out/extern/exception.o" "-c" "extern/exception.m"
cargo:warning=extern/exception.m:1:10: fatal error: 'objc/objc.h' file not found
cargo:warning=#include <objc/objc.h>
cargo:warning= ^~~~~~~~~~~~~
cargo:warning=1 error generated.
exit status: 1
--- stderr
error occurred: Command "cc" "-O3" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-2" "-fno-omit-frame-pointer" "-arch" "arm64" "-iframework" "/nix/store/4cxlahsfynhsvh4057p2y80dcg7gjm4h-devenv-profile/Library/Frameworks" "-o" "/Users/andrewplaza/Projects/insipx/portfolio-os/target/debug/build/objc_exception-6a080bf62f73939a/out/extern/exception.o" "-c" "extern/exception.m" with args "cc" did not execute successfully (status code exit status: 1).
warning: build failed, waiting for other jobs to finish...
The shell I’m using for development is this:
{ pkgs, lib, ... }:
{
# https://devenv.sh/basics/
env.GREET = "devenv";
# https://devenv.sh/packages/
packages = with pkgs;
[
cargo-watch
clang
gcc
mold
llvmPackages.libcxxStdenv
llvmPackages.libclang
vulkan-headers
vulkan-loader
clang
pkg-config
] ++ lib.optionals pkgs.hostPlatform.isDarwin [
darwin.apple_sdk.frameworks.Security
darwin.apple_sdk.frameworks.CoreFoundation
darwin.apple_sdk.frameworks.SystemConfiguration
darwin.apple_sdk.frameworks.AGL
darwin.apple_sdk.frameworks.CoreGraphics
darwin.apple_sdk.frameworks.GameKit
darwin.apple_sdk.frameworks.Carbon
];
# https://devenv.sh/scripts/
scripts.hello.exec = "echo hello from $GREET";
languages.rust = {
enable = true;
channel = "nightly";
components = [ "rustc" "cargo" "clippy" "rustfmt" "rust-analyzer" ];
};
enterShell = ''
hello
git --version
'';
env.LIBCLANG_PATH = "${pkgs.llvmPackages.libclang}/lib";
# https://devenv.sh/languages/
# languages.nix.enable = true;
# https://devenv.sh/pre-commit-hooks/
# pre-commit.hooks.shellcheck.enable = true;
# https://devenv.sh/processes/
# processes.ping.exec = "ping example.com";
# See full reference at https://devenv.sh/reference/options/
}
I’m not sure where to get this objc.h. I’ve tried using libobjc in packages, but no dice. I’ve also looked up other posts to discourse about compiling a bevy app but couldn’t find a solution.
I am using a custom linker config:
# Add the contents of this file to `config.toml` to enable "fast build" configuration. Please read the notes below.
[target.x86_64-unknown-linux-gnu]
linker = "clang"
rustflags = ["-Clink-arg=-fuse-ld=.devenv/profile/bin/mold", "-Zshare-generics=y"]
# NOTE: you must install [Mach-O LLD Port](https://lld.llvm.org/MachO/index.html) on mac. you can easily do this by installing llvm which includes lld with the "brew" package manager:
# `brew install llvm`
[target.x86_64-apple-darwin]
rustflags = [
"-C",
"link-arg=-fuse-ld=.devenv/profile/bin/ld64.mold",
"-Zshare-generics=y",
]
[target.aarch64-apple-darwin]
rustflags = [
"-C",
"link-arg=-fuse-ld=.devenv/profile/bin/ld64.mold",
"-Zshare-generics=y",
]
# Optional: Uncommenting the following improves compile times, but reduces the amount of debug info to 'line number tables only'
# In most cases the gains are negligible, but if you are on macos and have slow compile times you should see significant gains.
#[profile.dev]
#debug = 1