linker error during build on macos

[davidbrai]

Hi,

I ran cargo build on my macos and got the following error:

➜  cow-dex-solver git:(main) cargo build
   Compiling ethcontract-derive v0.15.3
error: linking with `cc` failed: exit status: 1
  |
  = note: "cc" "-m64" "-arch" "x86_64" "/Users/...
...
  = note: ld: reference to symbol (which has not been assigned an address) __ZN4curl4init9INIT_CTOR17h32bbb45c3dd2c85aE in '__ZN4curl4init17h65fffcaa4ea77c83E' from /Users/david/projects/crypto/cow-dex-solver/target/debug/deps/libcurl-4fcdd02a82e2cd5f.rlib(curl-4fcdd02a82e2cd5f.curl.779571c0-cgu.15.rcgu.o) for architecture x86_64
          clang: error: linker command failed with exit code 1 (use -v to see invocation)


error: could not compile `ethcontract-derive` due to previous error

Any ideas what's the issue / how to fix?

[davidbrai]

ok, I found a workaround.
in case someone else encounters this:

this will work:

export MACOSX_DEPLOYMENT_TARGET=10.7
cargo clean
cargo build/run/etc

thanks to:
alexcrichton/curl-rust#417
rust-lang/rust#90342