i can't build

[iceyee]

Problem:

a few months ago, it works well. but today i try "cargo update" and "cargo build", it wrong.

error message:

error: failed to run custom build command for `aws-lc-sys v0.20.1`

Caused by:
  process didn't exit successfully: `/home/ljq/git/rust_buff/iceyee_buff_sell/target/release/build/aws-lc-sys-01021d10d0778e38/build-script-main` (exit status: 101)
  --- stdout
  cargo:rerun-if-env-changed=AWS_LC_SYS_NO_PREFIX
  cargo:rerun-if-env-changed=AWS_LC_SYS_INTERNAL_BINDGEN
  cargo:rerun-if-env-changed=AWS_LC_SYS_EXTERNAL_BINDGEN
  cargo:rerun-if-env-changed=AWS_LC_SYS_NO_ASM
  cargo:rustc-cfg=x86_64_unknown_linux_gnu
  cargo:rerun-if-env-changed=AWS_LC_SYS_CMAKE_BUILDER
  cargo:rerun-if-env-changed=AWS_LC_SYS_STATIC
  default_for Target: 'x86_64-unknown-linux-gnu'
  cargo:rerun-if-env-changed=CARGO_FEATURE_SSL
  default_for Target: 'x86_64-unknown-linux-gnu'
  cargo:rerun-if-env-changed=CARGO_FEATURE_SSL
  cargo:root=/home/ljq/git/rust_buff/iceyee_buff_sell/target/release/build/aws-lc-sys-9affc2d379bf0b66/out
  default_for Target: 'x86_64-unknown-linux-gnu'
  OPT_LEVEL = Some(3)
  TARGET = Some(x86_64-unknown-linux-gnu)
  OUT_DIR = Some(/home/ljq/git/rust_buff/iceyee_buff_sell/target/release/build/aws-lc-sys-9affc2d379bf0b66/out)
  HOST = Some(x86_64-unknown-linux-gnu)
  cargo:rerun-if-env-changed=CC_x86_64-unknown-linux-gnu
  CC_x86_64-unknown-linux-gnu = None
  cargo:rerun-if-env-changed=CC_x86_64_unknown_linux_gnu
  CC_x86_64_unknown_linux_gnu = None
  cargo:rerun-if-env-changed=HOST_CC
  HOST_CC = None
  cargo:rerun-if-env-changed=CC
  CC = None
  cargo:rerun-if-env-changed=CC_ENABLE_DEBUG_OUTPUT
  RUSTC_WRAPPER = None
  cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
  CRATE_CC_NO_DEFAULTS = None
  DEBUG = Some(false)
  CARGO_CFG_TARGET_FEATURE = Some(fxsr,sse,sse2)
  cargo:rerun-if-env-changed=CFLAGS_x86_64-unknown-linux-gnu
  CFLAGS_x86_64-unknown-linux-gnu = None
  cargo:rerun-if-env-changed=CFLAGS_x86_64_unknown_linux_gnu
  CFLAGS_x86_64_unknown_linux_gnu = None
  cargo:rerun-if-env-changed=HOST_CFLAGS
  HOST_CFLAGS = None
  cargo:rerun-if-env-changed=CFLAGS
  CFLAGS = None
  
  --- stderr
  thread 'main' panicked at /home/ljq/.cargo/registry/src/index.crates.io-6f17d22bba15001f/aws-lc-sys-0.20.1/builder/cc_builder.rs:244:13:
  Your compiler (cc) is not supported due to a memcmp related bug reported in https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95189.We strongly recommend against using this compiler.EXECUTED: true ERROR:  OUTPUT:
  note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
warning: build failed, waiting for other jobs to finish...

Relevant details

AWS-LC for Rust versions or commit: (6b1bce0...)

System information:

• CPU architecture: x86-64
• CPU name: 12th Gen Intel(R) Core(TM) i3-12100
• OS: Ubuntu 20.04
• cargo: 1.82.0-nightly
• gcc: 9.4.0

[justsmth]

Hello!

This sounds similar to the build failure reported here: #474

The error message you listed summarizes the reason for the failure:

Your compiler (cc) is not supported due to a memcmp related bug reported in https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95189.We strongly recommend against using this compiler.

This is supposedly a bug only present in GCC 10.1, but perhaps there are other compiler versions that have it as well?

As a debug step, would you try setting AWS_LC_SYS_CMAKE_BUILDER=1 in your environment so the build uses CMake? I'm curious whether the "CMake build" would also complain about this issue.

[iceyee]

yes, i have tried your suggestion, and its ok. its a valid solution.

i also tried another solution, upgrade gcc to the newest version 10.5, it works well too.