Re: rust: use system libunwind

[matthewd%fastmail.us@localhost]

On Tue, Apr 2, 2024, at 7:06 PM, Jason Bacon wrote:
> On 4/2/24 07:41, Jason Bacon wrote:
>> On 1/15/24 06:25, Adam Ciarciński wrote:
>>> Module Name:    pkgsrc-wip
>>> Committed By:    Adam Ciarciński <aciarcinski%teonite.com@localhost>
>>> Pushed By:    adam
>>> Date:        Mon Jan 15 13:25:19 2024 +0100
>>> Changeset:    4435fd3d9a1cb0f77c2ac3bc00a651986f8e9f10
>>>
>>> Modified Files:
>>>     rust175/options.mk
>>>
>>> Log Message:
>>> rust: use system libunwind
>>>
>>> To see a diff of this commit:
>>> https://wip.pkgsrc.org/cgi-bin/gitweb.cgi?p=pkgsrc-wip.git;a=commitdiff;h=4435fd3d9a1cb0f77c2ac3bc00a651986f8e9f10
>>>
>>> Please note that diffs are not public domain; they are subject to the
>>> copyright notices on the relevant files.
>>>
>>> diffstat:
>>>   rust175/options.mk | 3 ++-
>>>   1 file changed, 2 insertions(+), 1 deletion(-)
>>>
>>> diffs:
>>> diff --git a/rust175/options.mk b/rust175/options.mk
>>> index a92c7d88f1..d1204912cc 100644
>>> --- a/rust175/options.mk
>>> +++ b/rust175/options.mk
>>> @@ -41,9 +41,10 @@ PKG_OPTIONS_LEGACY_OPTS+=    
>>> rust-llvm:rust-internal-llvm
>>>   .if empty(PKG_OPTIONS:Mrust-internal-llvm)
>>>   # External LLVM must be >= 15, ref. RELEASES.md
>>>   BUILDLINK_API_DEPENDS.llvm+=    llvm>=15
>>> +.include "../../lang/libunwind/buildlink3.mk"
>>>   .include "../../lang/llvm/buildlink3.mk"
>>>   CONFIGURE_ARGS+=    --enable-llvm-link-shared
>>> -#CONFIGURE_ARGS+=    --llvm-libunwind=system
>>> +CONFIGURE_ARGS+=    --llvm-libunwind=system
>>>   CONFIGURE_ARGS+=    --llvm-root=${BUILDLINK_PREFIX.llvm}
>>>   .endif
>> 
>> FYI, this does not work on Lubuntu 23.10.  Tail of the build output below.
>> 
>> Removing
>> 
>> CONFIGURE_ARGS+=    --llvm-libunwind=system
>> 
>> fixes the build.
>> 
>> ===
>> 
>> error: linking with `cc` failed: exit status: 1
>>    |
>>    = note: LC_ALL="C" 
>> PATH="/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-sysroot/lib/rustlib/x86_64-unknown-linux-gnu/bin:/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/.cwrapper/bin:/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/.buildlink/bin:/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/.gcc/bin:/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/.tools/bin:/home/bacon/Pkgsrc/pkg/bin:/home/bacon/Pkgsrc/pkg/bin:/home/bacon/Pkgsrc/pkg/sbin:/usr/bin:/usr/sbin:/bin:/sbin:/home/bacon/Pkgsrc/pkg/bin:/home/bacon/Pkgsrc/pkg/bin" VSLANG="1033" "cc" "-Wl,--version-script=/tmp/rustciGiG69/list" "-Wl,--no-undefined-version" "-m64" "/tmp/rustciGiG69/symbols.o" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/std-332a9c262c07cdcc.std.20d0122ca182c1f9-cgu.00.rcgu.o" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/std-332a9c262c07cdcc.std.20d0122ca182c1f9-cgu.01.rcgu.o" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/std-332a9c262c07cdcc.std.20d0122ca182c1f9-cgu.02.rcgu.o" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/std-332a9c262c07cdcc.std.20d0122ca182c1f9-cgu.03.rcgu.o" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/std-332a9c262c07cdcc.std.20d0122ca182c1f9-cgu.04.rcgu.o" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/std-332a9c262c07cdcc.std.20d0122ca182c1f9-cgu.05.rcgu.o" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/std-332a9c262c07cdcc.std.20d0122ca182c1f9-cgu.06.rcgu.o" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/std-332a9c262c07cdcc.std.20d0122ca182c1f9-cgu.07.rcgu.o" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/std-332a9c262c07cdcc.std.20d0122ca182c1f9-cgu.08.rcgu.o" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/std-332a9c262c07cdcc.std.20d0122ca182c1f9-cgu.09.rcgu.o" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/std-332a9c262c07cdcc.std.20d0122ca182c1f9-cgu.10.rcgu.o" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/std-332a9c262c07cdcc.std.20d0122ca182c1f9-cgu.11.rcgu.o" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/std-332a9c262c07cdcc.std.20d0122ca182c1f9-cgu.12.rcgu.o" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/std-332a9c262c07cdcc.std.20d0122ca182c1f9-cgu.13.rcgu.o" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/std-332a9c262c07cdcc.std.20d0122ca182c1f9-cgu.14.rcgu.o" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/std-332a9c262c07cdcc.std.20d0122ca182c1f9-cgu.15.rcgu.o" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/std-332a9c262c07cdcc.42nu0ne0uus9i0kv.rcgu.rmeta" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/std-332a9c262c07cdcc.4o6xms2byjghilr1.rcgu.o" "-Wl,--as-needed" "-L" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps" "-L" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/release/deps" "-L" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/build/compiler_builtins-9759d073f2f26727/out" "-L" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libpanic_unwind-4fcc1b6499b0a41b.rlib" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libobject-bcdf079bb57ce576.rlib" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libmemchr-c34929fe109b1843.rlib" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libaddr2line-7882f09625e65fe5.rlib" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libgimli-5bc0e2dbd6ad9aca.rlib" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/librustc_demangle-720e01426455f276.rlib" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libstd_detect-9c831a3c4dc9c2b3.rlib" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libhashbrown-4d03e5662f092227.rlib" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/librustc_std_workspace_alloc-ead363fb14adbd26.rlib" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libminiz_oxide-8b5104886866b15c.rlib" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libadler-3bd57375896b5450.rlib" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libunwind-d82b42748e11cba3.rlib" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libcfg_if-3fded376348e70c7.rlib" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/liblibc-ae9f45677063d650.rlib" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/liballoc-ae7881a5ce1b581e.rlib" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/librustc_std_workspace_core-e7e91f9e38782d6c.rlib" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libcore-4432853a6da2a875.rlib" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libcompiler_builtins-604f7be089975ee9.rlib" "-Wl,-Bdynamic" "-lunwind" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-sysroot/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libstd-332a9c262c07cdcc.so" "-shared" "-Wl,-z,relro,-z,now" "-Wl,-O1" "-nodefaultlibs" "-Wl,-z,origin" "-Wl,-rpath,/home/bacon/Pkgsrc/pkg/lib"
>>    = note: /usr/bin/ld: cannot find -lunwind: No such file or directory
>>            collect2: error: ld returned 1 exit status
>> 
>> 
>>      Building [====================>      ] 28/35: std
>> Did not run successfully: exit status: 1
>> LD_LIBRARY_PATH="/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rust-bootstrap/lib:/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/release/deps:/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rust-bootstrap/lib:/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rust-bootstrap/lib" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rust-bootstrap/bin/rustc" "--crate-name" "std" "--edition=2021" "library/std/src/lib.rs" "--error-format=json" "--json=diagnostic-rendered-ansi,artifacts,future-incompat" "--diagnostic-width=83" "--crate-type" "dylib" "--crate-type" "rlib" "--emit=dep-info,link" "-C" "prefer-dynamic" "-C" "opt-level=3" "-C" "embed-bitcode=no" "--cfg" "feature=\"addr2line\"" "--cfg" "feature=\"backtrace\"" "--cfg" "feature=\"compiler-builtins-c\"" "--cfg" "feature=\"gimli-symbolize\"" "--cfg" "feature=\"miniz_oxide\"" "--cfg" "feature=\"object\"" "--cfg" "feature=\"panic_unwind\"" "--cfg" "feature=\"std_detect_dlsym_getauxval\"" "--cfg" "feature=\"std_detect_file_io\"" "--cfg" "feature=\"system-llvm-libunwind\"" "-Zunstable-options" "--check-cfg" "names()" "--check-cfg" "values()" "-C" "metadata=332a9c262c07cdcc" "-C" "extra-filename=-332a9c262c07cdcc" "--out-dir" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps" "--target" "x86_64-unknown-linux-gnu" "-L" "dependency=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps" "-L" "dependency=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/release/deps" "--extern" "priv:addr2line=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libaddr2line-7882f09625e65fe5.rlib" "--extern" "alloc=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/liballoc-ae7881a5ce1b581e.rlib" "--extern" "priv:cfg_if=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libcfg_if-3fded376348e70c7.rlib" "--extern" "priv:compiler_builtins=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libcompiler_builtins-604f7be089975ee9.rlib" "--extern" "core=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libcore-4432853a6da2a875.rlib" "--extern" "priv:hashbrown=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libhashbrown-4d03e5662f092227.rlib" "--extern" "libc=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/liblibc-ae9f45677063d650.rlib" "--extern" "priv:miniz_oxide=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libminiz_oxide-8b5104886866b15c.rlib" "--extern" "priv:object=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libobject-bcdf079bb57ce576.rlib" "--extern" "priv:panic_abort=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libpanic_abort-5d1c452a9fabea58.rlib" "--extern" "priv:panic_unwind=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libpanic_unwind-4fcc1b6499b0a41b.rlib" "--extern" "priv:rustc_demangle=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/librustc_demangle-720e01426455f276.rlib" "--extern" "priv:std_detect=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libstd_detect-9c831a3c4dc9c2b3.rlib" "--extern" "priv:unwind=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libunwind-d82b42748e11cba3.rlib" "-Z" "unstable-options" "--cfg=bootstrap" "-Csymbol-mangling-version=legacy" "-Zunstable-options" "-Zunstable-options" "--check-cfg=values(bootstrap)" "--check-cfg=values(stdarch_intel_sde)" "--check-cfg=values(no_fp_fmt_parse)" "--check-cfg=values(no_global_oom_handling)" "--check-cfg=values(no_rc)" "--check-cfg=values(no_sync)" "--check-cfg=values(freebsd12)" "--check-cfg=values(freebsd13)" "--check-cfg=values(backtrace_in_libstd)" "--check-cfg=values(target_env,\"libnx\")" "--check-cfg=values(target_arch,\"asmjs\",\"spirv\",\"nvptx\",\"xtensa\")" "-Zmacro-backtrace" "-Clink-args=-Wl,-z,origin" "-Clink-args=-Wl,-rpath,/home/bacon/Pkgsrc/pkg/lib" "-Csplit-debuginfo=off" "-Cprefer-dynamic" "-Zinline-mir" "-Zcrate-attr=doc(html_root_url=\"https://doc.rust-lang.org/1.75.0/\";)" "-Z" "binary-dep-depinfo" "-L" "native=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/build/compiler_builtins-9759d073f2f26727/out" "--cfg" "backtrace_in_libstd" "-Wrust_2018_idioms" "-Wunused_lifetimes" "-Wsemicolon_in_expressions_from_macros" "-Dwarnings" "--sysroot" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-sysroot" "-Z" "force-unstable-if-unmarked"
>> -------------
>> error: could not compile `std` (lib) due to previous error
>> 
>> Caused by:
>>    process didn't exit successfully: 
>> `/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/bootstrap/debug/rustc --crate-name std --edition=2021 library/std/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --diagnostic-width=83 --crate-type dylib --crate-type rlib --emit=dep-info,link -C prefer-dynamic -C opt-level=3 -C embed-bitcode=no --cfg 'feature="addr2line"' --cfg 'feature="backtrace"' --cfg 'feature="compiler-builtins-c"' --cfg 'feature="gimli-symbolize"' --cfg 'feature="miniz_oxide"' --cfg 'feature="object"' --cfg 'feature="panic_unwind"' --cfg 'feature="std_detect_dlsym_getauxval"' --cfg 'feature="std_detect_file_io"' --cfg 'feature="system-llvm-libunwind"' -Zunstable-options --check-cfg 'names()' --check-cfg 'values()' -C metadata=332a9c262c07cdcc -C extra-filename=-332a9c262c07cdcc --out-dir /home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps --target x86_64-unknown-linux-gnu -L dependency=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps -L dependency=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/release/deps --extern 'priv:addr2line=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libaddr2line-7882f09625e65fe5.rlib' --extern alloc=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/liballoc-ae7881a5ce1b581e.rlib --extern 'priv:cfg_if=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libcfg_if-3fded376348e70c7.rlib' --extern 'priv:compiler_builtins=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libcompiler_builtins-604f7be089975ee9.rlib' --extern core=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libcore-4432853a6da2a875.rlib --extern 'priv:hashbrown=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libhashbrown-4d03e5662f092227.rlib' --extern libc=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/liblibc-ae9f45677063d650.rlib --extern 'priv:miniz_oxide=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libminiz_oxide-8b5104886866b15c.rlib' --extern 'priv:object=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libobject-bcdf079bb57ce576.rlib' --extern 'priv:panic_abort=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libpanic_abort-5d1c452a9fabea58.rlib' --extern 'priv:panic_unwind=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libpanic_unwind-4fcc1b6499b0a41b.rlib' --extern 'priv:rustc_demangle=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/librustc_demangle-720e01426455f276.rlib' --extern 'priv:std_detect=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libstd_detect-9c831a3c4dc9c2b3.rlib' --extern 'priv:unwind=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/deps/libunwind-d82b42748e11cba3.rlib' -Z unstable-options --cfg=bootstrap -Csymbol-mangling-version=legacy -Zunstable-options -Zunstable-options '--check-cfg=values(bootstrap)' '--check-cfg=values(stdarch_intel_sde)' '--check-cfg=values(no_fp_fmt_parse)' '--check-cfg=values(no_global_oom_handling)' '--check-cfg=values(no_rc)' '--check-cfg=values(no_sync)' '--check-cfg=values(freebsd12)' '--check-cfg=values(freebsd13)' '--check-cfg=values(backtrace_in_libstd)' '--check-cfg=values(target_env,"libnx")' '--check-cfg=values(target_arch,"asmjs","spirv","nvptx","xtensa")' -Zmacro-backtrace -Clink-args=-Wl,-z,origin -Clink-args=-Wl,-rpath,/home/bacon/Pkgsrc/pkg/lib -Csplit-debuginfo=off -Cprefer-dynamic -Zinline-mir '-Zcrate-attr=doc(html_root_url="https://doc.rust-lang.org/1.75.0/";)' -Z binary-dep-depinfo -L native=/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std/x86_64-unknown-linux-gnu/release/build/compiler_builtins-9759d073f2f26727/out --cfg backtrace_in_libstd` (exit status: 1)
>> command did not execute successfully: cd 
>> "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src" && env -u 
>> MAKEFLAGS -u MFLAGS AR_x86_64_unknown_linux_gnu="ar" 
>> CARGO_INCREMENTAL="0" CARGO_PROFILE_RELEASE_DEBUG="0" 
>> CARGO_PROFILE_RELEASE_DEBUG_ASSERTIONS="false" 
>> CARGO_PROFILE_RELEASE_OVERFLOW_CHECKS="false" 
>> CARGO_TARGET_DIR="/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-std" CC_x86_64_unknown_linux_gnu="cc" CFG_COMPILER_HOST_TRIPLE="x86_64-unknown-linux-gnu" CFG_DISABLE_UNSTABLE_FEATURES="1" CFG_RELEASE_CHANNEL="stable" CFLAGS_x86_64_unknown_linux_gnu="-O2 -ffunction-sections -fdata-sections -fPIC -m64 -O2 -I/home/bacon/Pkgsrc/pkg/include -I/usr/include -I/home/bacon/Pkgsrc/pkg/include/python3.11" CXXFLAGS_x86_64_unknown_linux_gnu="-O2 -ffunction-sections -fdata-sections -fPIC -m64 -O2 -I/home/bacon/Pkgsrc/pkg/include -I/usr/include -I/home/bacon/Pkgsrc/pkg/include/python3.11" CXX_x86_64_unknown_linux_gnu="c++" LIBC_CHECK_CFG="1" RANLIB_x86_64_unknown_linux_gnu="ar s" REAL_LIBRARY_PATH="/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rust-bootstrap/lib" REAL_LIBRARY_PATH_VAR="LD_LIBRARY_PATH" RUSTBUILD_NATIVE_DIR="/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/native" RUSTC="/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/bootstrap/debug/rustc" RUSTC_BOOTSTRAP="1" RUSTC_BREAK_ON_ICE="1" RUSTC_ERROR_METADATA_DST="/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/tmp/extended-error-metadata" RUSTC_FORCE_UNSTABLE="1" RUSTC_HOST_FLAGS="--cfg=bootstrap -Zunstable-options --check-cfg=values(bootstrap)" RUSTC_INSTALL_BINDIR="bin" RUSTC_LIBDIR="/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rust-bootstrap/lib" RUSTC_LINT_FLAGS="-Wrust_2018_idioms -Wunused_lifetimes -Wsemicolon_in_expressions_from_macros -Dwarnings" RUSTC_REAL="/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rust-bootstrap/bin/rustc" RUSTC_SNAPSHOT="/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rust-bootstrap/bin/rustc" RUSTC_SNAPSHOT_LIBDIR="/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rust-bootstrap/lib" RUSTC_STAGE="0" RUSTC_SYSROOT="/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/x86_64-unknown-linux-gnu/stage0-sysroot" RUSTC_VERBOSE="1" RUSTDOC="/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/bootstrap/debug/rustdoc" RUSTDOCFLAGS="--cfg=bootstrap -Csymbol-mangling-version=legacy -Zunstable-options -Zunstable-options --check-cfg=values(bootstrap) --check-cfg=values(stdarch_intel_sde) --check-cfg=values(no_fp_fmt_parse) --check-cfg=values(no_global_oom_handling) --check-cfg=values(no_rc) --check-cfg=values(no_sync) --check-cfg=values(freebsd12) --check-cfg=values(freebsd13) --check-cfg=values(backtrace_in_libstd) --check-cfg=values(target_env,\"libnx\") --check-cfg=values(target_arch,\"asmjs\",\"spirv\",\"nvptx\",\"xtensa\") -Dwarnings -Wrustdoc::invalid_codeblock_attributes --crate-version 1.75.0\t(82e1608df\t2023-12-21)\t(built\tfrom\ta\tsource\ttarball) -Zcrate-attr=doc(html_root_url=\"https://doc.rust-lang.org/1.75.0/\";) -Zcrate-attr=warn(rust_2018_idioms)" RUSTDOC_REAL="/path/to/nowhere/rustdoc/not/required" RUSTFLAGS="--cfg=bootstrap -Csymbol-mangling-version=legacy -Zunstable-options -Zunstable-options --check-cfg=values(bootstrap) --check-cfg=values(stdarch_intel_sde) --check-cfg=values(no_fp_fmt_parse) --check-cfg=values(no_global_oom_handling) --check-cfg=values(no_rc) --check-cfg=values(no_sync) --check-cfg=values(freebsd12) --check-cfg=values(freebsd13) --check-cfg=values(backtrace_in_libstd) --check-cfg=values(target_env,\"libnx\") --check-cfg=values(target_arch,\"asmjs\",\"spirv\",\"nvptx\",\"xtensa\") -Zmacro-backtrace -Clink-args=-Wl,-z,origin -Clink-args=-Wl,-rpath,/home/bacon/Pkgsrc/pkg/lib -Csplit-debuginfo=off -Cprefer-dynamic -Zinline-mir -Zcrate-attr=doc(html_root_url=\"https://doc.rust-lang.org/1.75.0/\";)" RUST_COMPILER_RT_ROOT="/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/src/llvm-project/compiler-rt" RUST_TEST_THREADS="8" WINAPI_NO_BUNDLED_LIBRARIES="1" __CARGO_DEFAULT_LIB_METADATA="bootstrapstd" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rust-bootstrap/bin/cargo" "build" "--target" "x86_64-unknown-linux-gnu" "--release" "-Zcheck-cfg=names,values,output" "-Zbinary-dep-depinfo" "-j" "8" "-v" "--frozen" "--features" " panic-unwind system-llvm-libunwind backtrace compiler-builtins-c" "--manifest-path" "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/library/sysroot/Cargo.toml" "--message-format" "json-render-diagnostics"
>> expected success, got: exit status: 101
>> Traceback (most recent call last):
>>    File 
>> "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/./x.py", line 
>> 50, in <module>
>>      bootstrap.main()
>>    File 
>> "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/src/bootstrap/bootstrap.py", line 1145, in main
>>      bootstrap(args)
>>    File 
>> "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/src/bootstrap/bootstrap.py", line 1121, in bootstrap
>>      run(args, env=env, verbose=build.verbose, is_bootstrap=True)
>>    File 
>> "/home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/src/bootstrap/bootstrap.py", line 187, in run
>>      raise RuntimeError(err)
>> RuntimeError: failed to run: 
>> /home/bacon/Pkgsrc/pkgsrc/lang/rust/work/rustc-1.75.0-src/build/bootstrap/debug/bootstrap -v build --stage 2 -j 8
>> *** Error code 1
>> 
>> Stop.
>> bmake[1]: stopped in /home/bacon/Pkgsrc/pkgsrc/lang/rust
>> *** Error code 1
>> 
>> Stop.
>> bmake: stopped in /home/bacon/Pkgsrc/pkgsrc/lang/rust
>> 
>
> Same issue on Alma 8.  Might be a problem on all Linux distros.

On my debian / ubuntu machines installing a newer version of libunwind worked.  On ubuntu, it was libunwind-15-dev, and ony my debian box is was libunwind-16-dev.

-Matthew