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BurntSushi / memchr

Optimized string search routines for Rust.
The Unlicense
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failed to compile `memchr 2.5.0` on macos-12 and macos-11 #124

Closed chenrui333 closed 1 year ago

chenrui333 commented 1 year ago

While trying to upgrade gifski to 1.11.0, we found some compilation error with memchr 2.5.0 on macos-12 and macos-11

thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: NotPresent', /Users/caleb/Library/Caches/Homebrew/cargo_cache/registry/src/index.crates.io-6f17d22bba15001f/memchr-2.5.0/build.rs:21:50
stack backtrace:
   0:        0x10002f1d6 - __mh_execute_header
   1:        0x10003fb9a - __mh_execute_header
   2:        0x10002193c - __mh_execute_header
   3:        0x10002efba - __mh_execute_header
   4:        0x10001d0a3 - __mh_execute_header
   5:        0x10001cd92 - __mh_execute_header
   6:        0x10001dc15 - __mh_execute_header
   7:        0x10002f4f4 - __mh_execute_header
   8:        0x10002f2d9 - __mh_execute_header
   9:        0x10001d6dd - __mh_execute_header
  10:        0x100045223 - __mh_execute_header
  11:        0x1000455d5 - __mh_execute_header
  12:        0x100005f6d - __mh_execute_header
  13:        0x100007700 - __mh_execute_header
  14:        0x100007699 - __mh_execute_header
  15:        0x10000592a - __mh_execute_header
  16:        0x10000602d - __mh_execute_header
  17:        0x100005d40 - __mh_execute_header
  18:        0x10001c3a4 - __mh_execute_header
  19:        0x100005d18 - __mh_execute_header
  20:        0x100007f48 - __mh_execute_header
Process 58184 exited with status = 101 (0x00000065)

full build log, https://github.com/Homebrew/homebrew-core/actions/runs/5083561622/jobs/9134939048 relates to https://github.com/Homebrew/homebrew-core/pull/129833

BurntSushi commented 1 year ago

So #125 passes, which to me means this isn't a macOS-{11,12} issue?

The error seems to be coming from this line: https://github.com/BurntSushi/memchr/blob/be564d425bfcabd2c9925a8a360f4a62b866bb90/build.rs#LL21C26-L21C47

Which seems to suggest that CARGO_CFG_TARGET_ARCH isn't set? That to me suggests something else is going wrong unrelated to this crate. You'll note that CARGO_CFG_TARGET_ARCH is part of the set of environment variables that are set by Cargo when running build scripts: https://doc.rust-lang.org/cargo/reference/environment-variables.html#environment-variables-cargo-sets-for-build-scripts

So something isn't setting those environment variables. Whatever that is, that's your problem I'd imagine.

BurntSushi commented 1 year ago

Looks like this was not a memchr issue, as the linked Homebrew issue seems to have been resolved.