Library not loaded: @rpath/libLTO.dylib - Reason: image not found

[DerekCrosson]

I don't have enough disk space to download and install Xcode.app so I downloaded the latest zld binary and moved it to my user directory, then added it to the path. This is the output when I run cargo watch -x check -x test -x run:

[Running 'cargo check && cargo test && cargo run']
    Checking email-newsletter v0.1.0 (/Volumes/DataStorage/CodeRepos/email-newsletter)
    Finished dev [unoptimized + debuginfo] target(s) in 0.87s
   Compiling email-newsletter v0.1.0 (/Volumes/DataStorage/CodeRepos/email-newsletter)
error: linking with `cc` failed: exit status: 254
  |
  = note: "cc" "-m64" "-arch" "x86_64" "/Volumes/DataStorage/CodeRepos/email-newsletter/target/debug/deps/email_newsletter-8d05e5d3049ed29a.119utbgb6sklrmny.rcgu.o" "/Volumes/DataStorage/CodeRepos/email-newsletter/target/debug/deps/email_newsletter-8d05e5d3049ed29a.238ezk0u3lhsox0c.rcgu.o" "/Volumes/DataStorage/CodeRepos/email-newsletter/target/debug/deps/email_newsletter-8d05e5d3049ed29a.2dcdtu3ls8tkzldn.rcgu.o" "/Volumes/DataStorage/CodeRepos/email-newsletter/target/debug/deps/email_newsletter-8d05e5d3049ed29a.41ufewda175mbemm.rcgu.o" "/Volumes/DataStorage/CodeRepos/email-newsletter/target/debug/deps/email_newsletter-8d05e5d3049ed29a.42zln2t70lwha9sx.rcgu.o" "/Volumes/DataStorage/CodeRepos/email-newsletter/target/debug/deps/email_newsletter-8d05e5d3049ed29a.4jp3cfhagr9urn2v.rcgu.o" "/Volumes/DataStorage/CodeRepos/email-newsletter/target/debug/deps/email_newsletter-8d05e5d3049ed29a.qw45qoou779hoex.rcgu.o" "/Volumes/DataStorage/CodeRepos/email-newsletter/target/debug/deps/email_newsletter-8d05e5d3049ed29a.47bz974wqy9tttab.rcgu.o" "-L" "/Volumes/DataStorage/CodeRepos/email-newsletter/target/debug/deps" "-L" "/Users/derek/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/x86_64-apple-darwin/lib" "/Users/derek/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/x86_64-apple-darwin/lib/libtest-77ee8c29c330e4a3.rlib" "/Users/derek/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/x86_64-apple-darwin/lib/libgetopts-0bbae02160b24516.rlib" "/Users/derek/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/x86_64-apple-darwin/lib/libunicode_width-ce5857cb149a5e3e.rlib" "/Users/derek/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/x86_64-apple-darwin/lib/librustc_std_workspace_std-60dd2b72a4b069df.rlib" "/Users/derek/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/x86_64-apple-darwin/lib/libstd-04b20da5d2b4e02d.rlib" "/Users/derek/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/x86_64-apple-darwin/lib/libpanic_unwind-00f5b50d82ace1e3.rlib" "/Users/derek/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/x86_64-apple-darwin/lib/libobject-45c041bae4e30a62.rlib" "/Users/derek/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/x86_64-apple-darwin/lib/libmemchr-1bc22f5f5be77a23.rlib" "/Users/derek/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/x86_64-apple-darwin/lib/libaddr2line-caa784d0cecbd501.rlib" "/Users/derek/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/x86_64-apple-darwin/lib/libgimli-0ad46247e89234f6.rlib" "/Users/derek/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/x86_64-apple-darwin/lib/librustc_demangle-68dabd8f37218f7c.rlib" "/Users/derek/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/x86_64-apple-darwin/lib/libstd_detect-4c67204728564461.rlib" "/Users/derek/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/x86_64-apple-darwin/lib/libhashbrown-eca93a0d11ef9a39.rlib" "/Users/derek/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/x86_64-apple-darwin/lib/librustc_std_workspace_alloc-6ddabe46ef182f8b.rlib" "/Users/derek/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/x86_64-apple-darwin/lib/libunwind-7dc1037a76f2c18c.rlib" "/Users/derek/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/x86_64-apple-darwin/lib/libcfg_if-100dc4191a6287d7.rlib" "/Users/derek/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/x86_64-apple-darwin/lib/liblibc-c596c47fc21af016.rlib" "/Users/derek/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/x86_64-apple-darwin/lib/liballoc-c7163fef4a8cdd33.rlib" "/Users/derek/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/x86_64-apple-darwin/lib/librustc_std_workspace_core-3463abc69f183e66.rlib" "/Users/derek/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/x86_64-apple-darwin/lib/libcore-12a50039d8929e4e.rlib" "/Users/derek/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/x86_64-apple-darwin/lib/libcompiler_builtins-a4134bbc9f4f0dab.rlib" "-lSystem" "-lresolv" "-lc" "-lm" "-liconv" "-L" "/Users/derek/.rustup/toolchains/stable-x86_64-apple-darwin/lib/rustlib/x86_64-apple-darwin/lib" "-o" "/Volumes/DataStorage/CodeRepos/email-newsletter/target/debug/deps/email_newsletter-8d05e5d3049ed29a" "-Wl,-dead_strip" "-nodefaultlibs" "-fuse-ld=/Users/derek/zld"
  = note: dyld: Library not loaded: @rpath/libLTO.dylib
            Referenced from: /Users/derek/zld
            Reason: image not found
          clang: error: unable to execute command: Abort trap: 6
          clang: error: linker command failed due to signal (use -v to see invocation)


error: could not compile `email-newsletter` due to previous error
[Finished running. Exit status: 101]

And this is my .cargo/config.toml:

[target.x86_64-apple-darwin]
rustflags = ["-C", "link-arg=-fuse-ld=/Users/derek/zld"]

Any ideas how to solve this?

[bjorn3]

Duplicate of #69. You need XCode to get libLTO.dylib. Based on #100 it seems that running install_name_tool -add_rpath /Library/Developer/CommandLineTools/usr/lib /Users/derek/zld may work after you have installed the xcode command line tools. If that doesn't work you will unfortunately have to install the entirety of XCode.

[DerekCrosson]

install_name_tool -add_rpath /Library/Developer/CommandLineTools/usr/lib /Users/derek/zld

This worked, thanks @bjorn3! Really appreciate it 🙂

[michaeleisel]

1.3.4 has this change