[MacPorts] #63333: cargo @0.54.0_1 fails to build some crates on 10.9

MacPorts noreply at macports.org
Tue Aug 3 01:53:08 UTC 2021


#63333: cargo @0.54.0_1 fails to build some crates on 10.9
----------------------------------------+-------------------------
  Reporter:  fhgwright                  |      Owner:  herbygillot
      Type:  defect                     |     Status:  assigned
  Priority:  Normal                     |  Milestone:
 Component:  ports                      |    Version:  2.7.1
Resolution:                             |   Keywords:
      Port:  cargo, rust-compiler-wrap  |
----------------------------------------+-------------------------

Comment (by fhgwright):

 There isn't a "build log" in the MacPorts sense, but here's the output.
 Note that this is in a git repo derived from the project noted above.

 {{{
 MacPro:~ fw$ cd /Volumes/MacPro-Misc/GitHub/library-loader/ll-cli/
 MacPro:ll-cli fw$ cargo build --release --bin library-loader-cli
    Compiling bzip2-sys v0.1.9+1.0.8
    Compiling serde_derive v1.0.114
    Compiling failure_derive v0.1.8
 error: linking with `/opt/local/libexec/rust-compiler-wrap/bin/ld-rust`
 failed: exit status: 1
   |
   = note: "/opt/local/libexec/rust-compiler-wrap/bin/ld-rust" "-m64"
 "-arch" "x86_64" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/build/bzip2-sys-4025a183244f9380/build_script_build-
 4025a183244f9380.build_script_build.22t64wl1-cgu.0.rcgu.o" "/Volumes
 /MacPro-Misc/GitHub/library-loader/target/release/build/bzip2-sys-
 4025a183244f9380/build_script_build-
 4025a183244f9380.build_script_build.22t64wl1-cgu.1.rcgu.o" "/Volumes
 /MacPro-Misc/GitHub/library-loader/target/release/build/bzip2-sys-
 4025a183244f9380/build_script_build-
 4025a183244f9380.build_script_build.22t64wl1-cgu.10.rcgu.o" "/Volumes
 /MacPro-Misc/GitHub/library-loader/target/release/build/bzip2-sys-
 4025a183244f9380/build_script_build-
 4025a183244f9380.build_script_build.22t64wl1-cgu.11.rcgu.o" "/Volumes
 /MacPro-Misc/GitHub/library-loader/target/release/build/bzip2-sys-
 4025a183244f9380/build_script_build-
 4025a183244f9380.build_script_build.22t64wl1-cgu.12.rcgu.o" "/Volumes
 /MacPro-Misc/GitHub/library-loader/target/release/build/bzip2-sys-
 4025a183244f9380/build_script_build-
 4025a183244f9380.build_script_build.22t64wl1-cgu.13.rcgu.o" "/Volumes
 /MacPro-Misc/GitHub/library-loader/target/release/build/bzip2-sys-
 4025a183244f9380/build_script_build-
 4025a183244f9380.build_script_build.22t64wl1-cgu.14.rcgu.o" "/Volumes
 /MacPro-Misc/GitHub/library-loader/target/release/build/bzip2-sys-
 4025a183244f9380/build_script_build-
 4025a183244f9380.build_script_build.22t64wl1-cgu.15.rcgu.o" "/Volumes
 /MacPro-Misc/GitHub/library-loader/target/release/build/bzip2-sys-
 4025a183244f9380/build_script_build-
 4025a183244f9380.build_script_build.22t64wl1-cgu.2.rcgu.o" "/Volumes
 /MacPro-Misc/GitHub/library-loader/target/release/build/bzip2-sys-
 4025a183244f9380/build_script_build-
 4025a183244f9380.build_script_build.22t64wl1-cgu.3.rcgu.o" "/Volumes
 /MacPro-Misc/GitHub/library-loader/target/release/build/bzip2-sys-
 4025a183244f9380/build_script_build-
 4025a183244f9380.build_script_build.22t64wl1-cgu.4.rcgu.o" "/Volumes
 /MacPro-Misc/GitHub/library-loader/target/release/build/bzip2-sys-
 4025a183244f9380/build_script_build-
 4025a183244f9380.build_script_build.22t64wl1-cgu.5.rcgu.o" "/Volumes
 /MacPro-Misc/GitHub/library-loader/target/release/build/bzip2-sys-
 4025a183244f9380/build_script_build-
 4025a183244f9380.build_script_build.22t64wl1-cgu.6.rcgu.o" "/Volumes
 /MacPro-Misc/GitHub/library-loader/target/release/build/bzip2-sys-
 4025a183244f9380/build_script_build-
 4025a183244f9380.build_script_build.22t64wl1-cgu.7.rcgu.o" "/Volumes
 /MacPro-Misc/GitHub/library-loader/target/release/build/bzip2-sys-
 4025a183244f9380/build_script_build-
 4025a183244f9380.build_script_build.22t64wl1-cgu.8.rcgu.o" "/Volumes
 /MacPro-Misc/GitHub/library-loader/target/release/build/bzip2-sys-
 4025a183244f9380/build_script_build-
 4025a183244f9380.build_script_build.22t64wl1-cgu.9.rcgu.o" "/Volumes
 /MacPro-Misc/GitHub/library-loader/target/release/build/bzip2-sys-
 4025a183244f9380/build_script_build-
 4025a183244f9380.3nyps5y8nyv2dd92.rcgu.o" "-L" "/Volumes/MacPro-
 Misc/GitHub/library-loader/target/release/deps" "-L"
 "/opt/local/lib/rustlib/x86_64-apple-darwin/lib" "/Volumes/MacPro-
 Misc/GitHub/library-loader/target/release/deps/libpkg_config-
 f472b2c14eb36a1a.rlib" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/libcc-426671f5d7707c4e.rlib"
 "/opt/local/lib/rustlib/x86_64-apple-darwin/lib/libstd-
 b4aa51e1b3a806c5.rlib" "/opt/local/lib/rustlib/x86_64-apple-darwin/lib
 /libpanic_unwind-b5e0ee5b34899691.rlib" "/opt/local/lib/rustlib/x86_64
 -apple-darwin/lib/libobject-b389e7e5aaedc266.rlib"
 "/opt/local/lib/rustlib/x86_64-apple-darwin/lib/libaddr2line-
 c6c30fe85d21a041.rlib" "/opt/local/lib/rustlib/x86_64-apple-darwin/lib
 /libgimli-df71b1a0f7222dab.rlib" "/opt/local/lib/rustlib/x86_64-apple-
 darwin/lib/libstd_detect-8e384ecaefcd351e.rlib"
 "/opt/local/lib/rustlib/x86_64-apple-darwin/lib/librustc_demangle-
 73ebcb64354151a4.rlib" "/opt/local/lib/rustlib/x86_64-apple-darwin/lib
 /libhashbrown-877dea5675c34ac2.rlib" "/opt/local/lib/rustlib/x86_64-apple-
 darwin/lib/librustc_std_workspace_alloc-65c1b0a6ae77b061.rlib"
 "/opt/local/lib/rustlib/x86_64-apple-darwin/lib/libunwind-
 4b8c2da58aa4bbee.rlib" "/opt/local/lib/rustlib/x86_64-apple-darwin/lib
 /libcfg_if-8e613fbb2d10ca79.rlib" "/opt/local/lib/rustlib/x86_64-apple-
 darwin/lib/liblibc-1374d24935c09ecf.rlib" "/opt/local/lib/rustlib/x86_64
 -apple-darwin/lib/liballoc-844578fece21232b.rlib"
 "/opt/local/lib/rustlib/x86_64-apple-darwin/lib
 /librustc_std_workspace_core-8fa8b753ada45943.rlib"
 "/opt/local/lib/rustlib/x86_64-apple-darwin/lib/libcore-
 58d35d64ccb4eecf.rlib" "/opt/local/lib/rustlib/x86_64-apple-darwin/lib
 /libcompiler_builtins-a130f34109f01370.rlib" "-lSystem" "-lresolv" "-lc"
 "-lm" "-liconv" "-L" "/opt/local/lib/rustlib/x86_64-apple-darwin/lib" "-o"
 "/Volumes/MacPro-Misc/GitHub/library-loader/target/release/build/bzip2
 -sys-4025a183244f9380/build_script_build-4025a183244f9380"
 "-Wl,-dead_strip" "-nodefaultlibs"
   = note: Undefined symbols for architecture x86_64:
             "_linkat", referenced from:
                 std::sys::unix::fs::link::h95dca71bfe26f889 in libstd-
 b4aa51e1b3a806c5.rlib(std-b4aa51e1b3a806c5.std.e6zzngrm-cgu.9.rcgu.o)
           ld: symbol(s) not found for architecture x86_64
           clang: error: linker command failed with exit code 1 (use -v to
 see invocation)


 error: aborting due to previous error

 error: could not compile `bzip2-sys`

 To learn more, run the command again with --verbose.
 warning: build failed, waiting for other jobs to finish...
 error: linking with `/opt/local/libexec/rust-compiler-wrap/bin/ld-rust`
 failed: exit status: 1
   |
   = note: "/opt/local/libexec/rust-compiler-wrap/bin/ld-rust" "-m64"
 "-arch" "x86_64" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/failure_derive-2d65b3ddb607f2d7.failure_derive
 .4k1r9wpx-cgu.0.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/failure_derive-2d65b3ddb607f2d7.failure_derive
 .4k1r9wpx-cgu.1.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/failure_derive-2d65b3ddb607f2d7.failure_derive
 .4k1r9wpx-cgu.10.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/failure_derive-2d65b3ddb607f2d7.failure_derive
 .4k1r9wpx-cgu.11.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/failure_derive-2d65b3ddb607f2d7.failure_derive
 .4k1r9wpx-cgu.12.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/failure_derive-2d65b3ddb607f2d7.failure_derive
 .4k1r9wpx-cgu.13.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/failure_derive-2d65b3ddb607f2d7.failure_derive
 .4k1r9wpx-cgu.14.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/failure_derive-2d65b3ddb607f2d7.failure_derive
 .4k1r9wpx-cgu.15.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/failure_derive-2d65b3ddb607f2d7.failure_derive
 .4k1r9wpx-cgu.2.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/failure_derive-2d65b3ddb607f2d7.failure_derive
 .4k1r9wpx-cgu.3.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/failure_derive-2d65b3ddb607f2d7.failure_derive
 .4k1r9wpx-cgu.4.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/failure_derive-2d65b3ddb607f2d7.failure_derive
 .4k1r9wpx-cgu.5.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/failure_derive-2d65b3ddb607f2d7.failure_derive
 .4k1r9wpx-cgu.6.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/failure_derive-2d65b3ddb607f2d7.failure_derive
 .4k1r9wpx-cgu.7.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/failure_derive-2d65b3ddb607f2d7.failure_derive
 .4k1r9wpx-cgu.8.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/failure_derive-2d65b3ddb607f2d7.failure_derive
 .4k1r9wpx-cgu.9.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/failure_derive-
 2d65b3ddb607f2d7.1jdvlz2zivmzt2bg.rcgu.o" "/Volumes/MacPro-Misc/GitHub
 /library-loader/target/release/deps/failure_derive-
 2d65b3ddb607f2d7.2u1glcancic3ar2g.rcgu.o" "-L" "/Volumes/MacPro-
 Misc/GitHub/library-loader/target/release/deps" "-L"
 "/opt/local/lib/rustlib/x86_64-apple-darwin/lib" "/Volumes/MacPro-
 Misc/GitHub/library-loader/target/release/deps/libsynstructure-
 09cc56e2c8bd9e58.rlib" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/libsyn-eebee8414f5b9106.rlib" "/Volumes/MacPro-
 Misc/GitHub/library-loader/target/release/deps/libquote-
 3c2d5323625e099f.rlib" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/libproc_macro2-4f4068827287fc39.rlib" "/Volumes
 /MacPro-Misc/GitHub/library-loader/target/release/deps/libunicode_xid-
 8ea77799edfa54fd.rlib" "/opt/local/lib/rustlib/x86_64-apple-darwin/lib
 /libproc_macro-79dc1d8219f18da8.rlib" "/opt/local/lib/rustlib/x86_64
 -apple-darwin/lib/libstd-b4aa51e1b3a806c5.rlib"
 "/opt/local/lib/rustlib/x86_64-apple-darwin/lib/libpanic_unwind-
 b5e0ee5b34899691.rlib" "/opt/local/lib/rustlib/x86_64-apple-darwin/lib
 /libobject-b389e7e5aaedc266.rlib" "/opt/local/lib/rustlib/x86_64-apple-
 darwin/lib/libaddr2line-c6c30fe85d21a041.rlib"
 "/opt/local/lib/rustlib/x86_64-apple-darwin/lib/libgimli-
 df71b1a0f7222dab.rlib" "/opt/local/lib/rustlib/x86_64-apple-darwin/lib
 /libstd_detect-8e384ecaefcd351e.rlib" "/opt/local/lib/rustlib/x86_64
 -apple-darwin/lib/librustc_demangle-73ebcb64354151a4.rlib"
 "/opt/local/lib/rustlib/x86_64-apple-darwin/lib/libhashbrown-
 877dea5675c34ac2.rlib" "/opt/local/lib/rustlib/x86_64-apple-darwin/lib
 /librustc_std_workspace_alloc-65c1b0a6ae77b061.rlib"
 "/opt/local/lib/rustlib/x86_64-apple-darwin/lib/libunwind-
 4b8c2da58aa4bbee.rlib" "/opt/local/lib/rustlib/x86_64-apple-darwin/lib
 /libcfg_if-8e613fbb2d10ca79.rlib" "/opt/local/lib/rustlib/x86_64-apple-
 darwin/lib/liblibc-1374d24935c09ecf.rlib" "/opt/local/lib/rustlib/x86_64
 -apple-darwin/lib/liballoc-844578fece21232b.rlib"
 "/opt/local/lib/rustlib/x86_64-apple-darwin/lib
 /librustc_std_workspace_core-8fa8b753ada45943.rlib"
 "/opt/local/lib/rustlib/x86_64-apple-darwin/lib/libcore-
 58d35d64ccb4eecf.rlib" "/opt/local/lib/rustlib/x86_64-apple-darwin/lib
 /libcompiler_builtins-a130f34109f01370.rlib" "-lSystem" "-lresolv" "-lc"
 "-lm" "-liconv" "-L" "/opt/local/lib/rustlib/x86_64-apple-darwin/lib" "-o"
 "/Volumes/MacPro-Misc/GitHub/library-loader/target/release/deps
 /libfailure_derive-2d65b3ddb607f2d7.dylib" "-Wl,-dead_strip" "-dynamiclib"
 "-Wl,-dylib" "-nodefaultlibs"
   = note: Undefined symbols for architecture x86_64:
             "_linkat", referenced from:
                 std::sys::unix::fs::link::h95dca71bfe26f889 in libstd-
 b4aa51e1b3a806c5.rlib(std-b4aa51e1b3a806c5.std.e6zzngrm-cgu.9.rcgu.o)
           ld: symbol(s) not found for architecture x86_64
           clang: error: linker command failed with exit code 1 (use -v to
 see invocation)


 error: aborting due to previous error

 error: linking with `/opt/local/libexec/rust-compiler-wrap/bin/ld-rust`
 failed: exit status: 1
   |
   = note: "/opt/local/libexec/rust-compiler-wrap/bin/ld-rust" "-m64"
 "-arch" "x86_64" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/serde_derive-40265251519554d0.serde_derive
 .97u09uqu-cgu.0.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/serde_derive-40265251519554d0.serde_derive
 .97u09uqu-cgu.1.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/serde_derive-40265251519554d0.serde_derive
 .97u09uqu-cgu.10.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/serde_derive-40265251519554d0.serde_derive
 .97u09uqu-cgu.11.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/serde_derive-40265251519554d0.serde_derive
 .97u09uqu-cgu.12.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/serde_derive-40265251519554d0.serde_derive
 .97u09uqu-cgu.13.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/serde_derive-40265251519554d0.serde_derive
 .97u09uqu-cgu.14.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/serde_derive-40265251519554d0.serde_derive
 .97u09uqu-cgu.15.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/serde_derive-40265251519554d0.serde_derive
 .97u09uqu-cgu.2.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/serde_derive-40265251519554d0.serde_derive
 .97u09uqu-cgu.3.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/serde_derive-40265251519554d0.serde_derive
 .97u09uqu-cgu.4.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/serde_derive-40265251519554d0.serde_derive
 .97u09uqu-cgu.5.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/serde_derive-40265251519554d0.serde_derive
 .97u09uqu-cgu.6.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/serde_derive-40265251519554d0.serde_derive
 .97u09uqu-cgu.7.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/serde_derive-40265251519554d0.serde_derive
 .97u09uqu-cgu.8.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/serde_derive-40265251519554d0.serde_derive
 .97u09uqu-cgu.9.rcgu.o" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/serde_derive-
 40265251519554d0.5gehjm3gfe0gpjm2.rcgu.o" "/Volumes/MacPro-Misc/GitHub
 /library-loader/target/release/deps/serde_derive-
 40265251519554d0.2ovazu7y522672fw.rcgu.o" "-L" "/Volumes/MacPro-
 Misc/GitHub/library-loader/target/release/deps" "-L"
 "/opt/local/lib/rustlib/x86_64-apple-darwin/lib" "/Volumes/MacPro-
 Misc/GitHub/library-loader/target/release/deps/libsyn-
 eebee8414f5b9106.rlib" "/Volumes/MacPro-Misc/GitHub/library-
 loader/target/release/deps/libquote-3c2d5323625e099f.rlib" "/Volumes
 /MacPro-Misc/GitHub/library-
 loader/target/release/deps/libproc_macro2-4f4068827287fc39.rlib" "/Volumes
 /MacPro-Misc/GitHub/library-loader/target/release/deps/libunicode_xid-
 8ea77799edfa54fd.rlib" "/opt/local/lib/rustlib/x86_64-apple-darwin/lib
 /libproc_macro-79dc1d8219f18da8.rlib" "/opt/local/lib/rustlib/x86_64
 -apple-darwin/lib/libstd-b4aa51e1b3a806c5.rlib"
 "/opt/local/lib/rustlib/x86_64-apple-darwin/lib/libpanic_unwind-
 b5e0ee5b34899691.rlib" "/opt/local/lib/rustlib/x86_64-apple-darwin/lib
 /libobject-b389e7e5aaedc266.rlib" "/opt/local/lib/rustlib/x86_64-apple-
 darwin/lib/libaddr2line-c6c30fe85d21a041.rlib"
 "/opt/local/lib/rustlib/x86_64-apple-darwin/lib/libgimli-
 df71b1a0f7222dab.rlib" "/opt/local/lib/rustlib/x86_64-apple-darwin/lib
 /libstd_detect-8e384ecaefcd351e.rlib" "/opt/local/lib/rustlib/x86_64
 -apple-darwin/lib/librustc_demangle-73ebcb64354151a4.rlib"
 "/opt/local/lib/rustlib/x86_64-apple-darwin/lib/libhashbrown-
 877dea5675c34ac2.rlib" "/opt/local/lib/rustlib/x86_64-apple-darwin/lib
 /librustc_std_workspace_alloc-65c1b0a6ae77b061.rlib"
 "/opt/local/lib/rustlib/x86_64-apple-darwin/lib/libunwind-
 4b8c2da58aa4bbee.rlib" "/opt/local/lib/rustlib/x86_64-apple-darwin/lib
 /libcfg_if-8e613fbb2d10ca79.rlib" "/opt/local/lib/rustlib/x86_64-apple-
 darwin/lib/liblibc-1374d24935c09ecf.rlib" "/opt/local/lib/rustlib/x86_64
 -apple-darwin/lib/liballoc-844578fece21232b.rlib"
 "/opt/local/lib/rustlib/x86_64-apple-darwin/lib
 /librustc_std_workspace_core-8fa8b753ada45943.rlib"
 "/opt/local/lib/rustlib/x86_64-apple-darwin/lib/libcore-
 58d35d64ccb4eecf.rlib" "/opt/local/lib/rustlib/x86_64-apple-darwin/lib
 /libcompiler_builtins-a130f34109f01370.rlib" "-lSystem" "-lresolv" "-lc"
 "-lm" "-liconv" "-L" "/opt/local/lib/rustlib/x86_64-apple-darwin/lib" "-o"
 "/Volumes/MacPro-Misc/GitHub/library-loader/target/release/deps
 /libserde_derive-40265251519554d0.dylib" "-Wl,-dead_strip" "-dynamiclib"
 "-Wl,-dylib" "-nodefaultlibs"
   = note: Undefined symbols for architecture x86_64:
             "_linkat", referenced from:
                 std::sys::unix::fs::link::h95dca71bfe26f889 in libstd-
 b4aa51e1b3a806c5.rlib(std-b4aa51e1b3a806c5.std.e6zzngrm-cgu.9.rcgu.o)
           ld: symbol(s) not found for architecture x86_64
           clang: error: linker command failed with exit code 1 (use -v to
 see invocation)


 error: aborting due to previous error

 error: build failed
 MacPro:ll-cli fw$
 }}}

 It seems to me that the missing piece is having the compiler wrapper
 provide the legacy-support library for linking.  There seem to be three
 different ways to do that; I'm not sure which is best in this context.
 One can see the "-lSystem" in the linker command line, which is presumably
 where it's linking against the standard OS runtime.  Merely tweaking this
 for the legacy-support version doesn't work, since it doesn't have the
 appropriate directory in its library search paths.  One question is
 whether to add another path here, or to put a symlink in rust's library
 directory pointing to the legacy-support library.

-- 
Ticket URL: <https://trac.macports.org/ticket/63333#comment:6>
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Ports system for macOS


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