[MacPorts] #61396: Rust fails to build on Big Sur (Public Beta).

[MacPorts]

#61396: Rust fails to build on Big Sur (Public Beta).
------------------------+--------------------
 Reporter:  5nefarious  |      Owner:  (none)
     Type:  defect      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:
 Keywords:              |       Port:  rust
------------------------+--------------------
 I'm trying to create a package and it looks like `rust` is one of the sub-
 dependencies (chromaprint > ffmpeg > librsvg > rust). However, it fails to
 build on the `darwin_20` platform, which is what I'm currently running.
 Looking at the log output, it looks like it's failing to link an FFI
 library:

 {{{
 :info:build    Compiling regex v1.3.9
 :info:build    Compiling globset v0.4.5
 :info:build    Compiling ignore v0.4.16
 :info:build    Compiling toml v0.5.6
 :info:build    Compiling bootstrap v0.0.0 (/opt/local/var/macports/build
 /_opt_mports_macports-
 ports_lang_rust/rust/work/rustc-1.47.0-src/src/bootstrap)
 :info:build     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
 :info:build running: /opt/local/var/macports/build/_opt_mports_macports-
 ports_lang_rust/rust/work/rustc-1.47.0-src/build/bootstrap/debug/bootstrap
 build --stage 2 -v -j8
 :info:build dyld: Library not loaded: /opt/local/lib/libffi.6.dylib
 :info:build   Referenced from:
 /opt/local/libexec/llvm-9.0/lib/libLLVM.dylib
 :info:build   Reason: image not found
 :info:build thread 'main' panicked at 'command did not execute
 successfully: "/opt/local/libexec/llvm-9.0/bin/llvm-config" "--bindir"
 :info:build expected success, got: signal: 6',
 src/build_helper/lib.rs:139:9
 :info:build note: run with `RUST_BACKTRACE=1` environment variable to
 display a backtrace
 :info:build Traceback (most recent call last):
 :info:build   File "/opt/local/var/macports/build/_opt_mports_macports-
 ports_lang_rust/rust/work/rustc-1.47.0-src/src/bootstrap/bootstrap.py",
 line 1026, in <module>
 :info:build     main()
 :info:build   File "/opt/local/var/macports/build/_opt_mports_macports-
 ports_lang_rust/rust/work/rustc-1.47.0-src/src/bootstrap/bootstrap.py",
 line 1009, in main
 :info:build     bootstrap(help_triggered)
 :info:build   File "/opt/local/var/macports/build/_opt_mports_macports-
 ports_lang_rust/rust/work/rustc-1.47.0-src/src/bootstrap/bootstrap.py",
 line 995, in bootstrap
 :info:build     run(args, env=env, verbose=build.verbose)
 :info:build   File "/opt/local/var/macports/build/_opt_mports_macports-
 ports_lang_rust/rust/work/rustc-1.47.0-src/src/bootstrap/bootstrap.py",
 line 143, in run
 :info:build     raise RuntimeError(err)
 :info:build RuntimeError: failed to run: /opt/local/var/macports/build
 /_opt_mports_macports-
 ports_lang_rust/rust/work/rustc-1.47.0-src/build/bootstrap/debug/bootstrap
 build --stage 2 -v -j8
 :info:build make: *** [all] Error 1
 :info:build make: Leaving directory `/opt/local/var/macports/build
 /_opt_mports_macports-ports_lang_rust/rust/work/rustc-1.47.0-src'
 :info:build Command failed:  cd "/opt/local/var/macports/build
 /_opt_mports_macports-ports_lang_rust/rust/work/rustc-1.47.0-src" &&
 /usr/bin/make -j8 -w all VERBOSE=1 BOOTSTRAP_ARGS="-v -j8"
 :info:build Exit code: 2
 :error:build Failed to build rust: command execution failed
 :debug:build Error code: CHILDSTATUS 81677 2
 :debug:build Backtrace: command execution failed
 :debug:build     while executing
 :debug:build "system {*}$notty {*}$callback {*}$nice $fullcmdstring"
 :debug:build     invoked from within
 :debug:build "command_exec -callback
 portprogress::target_progress_callback build"
 :debug:build     (procedure "portbuild::build_main" line 8)
 :debug:build     invoked from within
 :debug:build "$procedure $targetname"
 :error:build See /opt/local/var/macports/logs/_opt_mports_macports-
 ports_lang_rust/rust/main.log for details.
 }}}

 I checked and found that there is no `/opt/local/lib/libffi.6.dylib`, only
 `/opt/local/lib/libffi.7.dylib`. Is this something that needs to be fixed
 in MacPorts or an upstream problem?

-- 
Ticket URL: <https://trac.macports.org/ticket/61396>
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