Link error for x86_64-pc-windows-gnu

[zonyitoo]

* Building x86_64-pc-windows-gnu package 1.8.2 ...
   Compiling shadowsocks-rust v1.8.2 (/project)
error: linking with `gcc` failed: exit code: 1
  |
  = note: "gcc" "-fno-use-linker-plugin" "-Wl,--nxcompat" "-nostdlib" "-m64" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/crt2.o" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/rsbegin.o" "-L" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib" "/target/x86_64-pc-windows-gnu/release/deps/ssurl-28e42ab8516f5980.ssurl.7wvvpq37-cgu.1.rcgu.o" "-o" "/target/x86_64-pc-windows-gnu/release/deps/ssurl-28e42ab8516f5980.exe" "-Wl,--gc-sections" "-nodefaultlibs" "-L" "/target/x86_64-pc-windows-gnu/release/deps" "-L" "/target/release/deps" "-L" "/cargo/registry/src/github.com-1ecc6299db9ec823/winapi-x86_64-pc-windows-gnu-0.4.0/lib" "-L" "/usr/x86_64-w64-mingw32/lib" "-L" "/usr/x86_64-w64-mingw32/lib" "-L" "/target/x86_64-pc-windows-gnu/release/build/ring-111ba8649af88a7c/out" "-L" "/target/x86_64-pc-windows-gnu/release/build/backtrace-sys-c62025733561b702/out" "-L" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib" "-Wl,-Bstatic" "/tmp/rustcpZ7ap9/liblibsodium_sys-e1f382851cf88836.rlib" "/tmp/rustcpZ7ap9/libopenssl_sys-9653330b16ffda9c.rlib" "/tmp/rustcpZ7ap9/libring-6093be3c65bfd4e9.rlib" "/tmp/rustcpZ7ap9/libbacktrace_sys-f8f2b1afe0245f37.rlib" "-Wl,--start-group" "/tmp/rustcpZ7ap9/libbacktrace_sys-e1f0d80e45647562.rlib" "-Wl,--end-group" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/libcompiler_builtins-960a85ac60917763.rlib" "-Wl,-Bdynamic" "-lgdi32" "-luser32" "-lcrypt32" "-lws2_32" "-ladvapi32" "-ladvapi32" "-lws2_32" "-lkernel32" "-liphlpapi" "-lwinapi_advapi32" "-lwinapi_cfgmgr32" "-lwinapi_credui" "-lwinapi_fwpuclnt" "-lwinapi_gdi32" "-lwinapi_kernel32" "-lwinapi_msimg32" "-lwinapi_mswsock" "-lwinapi_ntdll" "-lwinapi_opengl32" "-lwinapi_secur32" "-lwinapi_synchronization" "-lwinapi_user32" "-lwinapi_winspool" "-lwinapi_ws2_32" "-ladvapi32" "-lws2_32" "-luserenv" "-Wl,-Bstatic" "-lgcc_eh" "-lpthread" "-Wl,-Bdynamic" "-lmingwex" "-lmingw32" "-lgcc" "-lmsvcrt" "-lmsvcrt" "-luser32" "-lkernel32" "/rust/lib/rustlib/x86_64-pc-windows-gnu/lib/rsend.o"
  = note: /usr/bin/ld: unrecognized option '--nxcompat'
          /usr/bin/ld: use the --help option for usage information
          collect2: error: ld returned 1 exit status

It seems that cargo is using the wrong linker (x86_64-w64-mingw32-gcc instead of gcc).

Build script: https://github.com/shadowsocks/shadowsocks-rust/blob/master/build/build-release#L17-L19

Dockerfile: https://github.com/shadowsocks/shadowsocks-rust/blob/master/build/Dockerfile.x86_64-pc-windows-gnu

[zonyitoo]

It seems that CARGO_TARGET_X86_64_PC_WINDOWS_GNU_LINKER is ignored.

[zonyitoo]

Related: rust-lang/cargo#7763

[BurntSushi]

@zonyitoo How did you end up fixing this? I'm using the 2020-01-15 nightly, but still getting the same error.

[zonyitoo]

I fixed it just by updating rustc to the "latest" nightly.

cross 0.1.16
cargo 1.42.0-nightly (6e1ca924a 2020-01-06)

[BurntSushi]

Yeah, I am on the latest nightly.

Turns out the problem was between the chair and the keyboard. I was running cross t --target ... and t is treated as an "other" sub-command that is passed through to Cargo without running docker. But it wasn't at all clear that that was what was happening. So I ended up with weird linker errors. Using cross test --target ... fixed it for me.