rustc: Fix cross-compilation for the targets with dot in name

When you are trying to cross-compile rustc to the target platform with
the dot in name, e.g. "thumb8vm.main-none-eabi", rustc compilation fails
with this error during configuration:

    armv8m-unknown-none-eabi-rustc> Running phase: configurePhase
    armv8m-unknown-none-eabi-rustc> patching script interpreter paths in ./configure
    armv8m-unknown-none-eabi-rustc> ./configure: interpreter directive changed from "#!/bin/sh" to "/nix/store/ih68ar79msmj0496pgld4r3vqfr7bbin-bash-5.2p37/bin/sh"
    armv8m-unknown-none-eabi-rustc> configure flags: --prefix=/nix/store/wscr78z0s5v2hxx3p1n4qjgjnds8dm0g-armv8m-unknown-none-eabi-rustc-1.86.0 --sysconfdir=/nix/store/wscr78z0s5v2hxx3p1n4qjgjnds8dm0g-armv8m-unknown-none-eabi-rustc-1.86.0/etc --release-channel=stable --set=build.rustc=/nix/store/f9zdz15l2zd408yq7a3bgrj593kpwjqx-rustc-wrapper-1.86.0/bin/rustc --set=build.cargo=/nix/store/ygri5mmqmril5ll9lhawa01faa2qhdvd-cargo-1.86.0/bin/cargo --tools=rustc\,rustdoc\,rust-analyzer-proc-macro-srv --enable-rpath --enable-vendor --disable-lld --build=x86_64-unknown-linux-gnu --host=x86_64-unknown-linux-gnu --target=thumbv8m.main-none-eabi --set=target.x86_64-unknown-linux-gnu.cc=/nix/store/a0d7m3zn9p2dfa1h7ag9h2wzzr2w25sn-gcc-wrapper-14.2.1.20250322/bin/cc --set=target.x86_64-unknown-linux-gnu.cc=/nix/store/a0d7m3zn9p2dfa1h7ag9h2wzzr2w25sn-gcc-wrapper-14.2.1.20250322/bin/cc --set=target.thumbv8m.main-none-eabi.cc=/nix/store/wnnwk5vknch7d8jy3cdykbsnn5qrmjj3-armv8m-unknown-none-eabi-gcc-wrapper-14.2.1.20250322/bin/armv8m-unknown-none-eabi-cc --set=target.thumbv8m.main-none-eabi.linker=/nix/store/wnnwk5vknch7d8jy3cdykbsnn5qrmjj3-armv8m-unknown-none-eabi-gcc-wrapper-14.2.1.20250322/bin/armv8m-unknown-none-eabi-cc --set=target.x86_64-unknown-linux-gnu.linker=/nix/store/a0d7m3zn9p2dfa1h7ag9h2wzzr2w25sn-gcc-wrapper-14.2.1.20250322/bin/cc --set=target.x86_64-unknown-linux-gnu.linker=/nix/store/a0d7m3zn9p2dfa1h7ag9h2wzzr2w25sn-gcc-wrapper-14.2.1.20250322/bin/cc --set=target.x86_64-unknown-linux-gnu.cxx=/nix/store/a0d7m3zn9p2dfa1h7ag9h2wzzr2w25sn-gcc-wrapper-14.2.1.20250322/bin/c++ --set=target.x86_64-unknown-linux-gnu.cxx=/nix/store/a0d7m3zn9p2dfa1h7ag9h2wzzr2w25sn-gcc-wrapper-14.2.1.20250322/bin/c++ --set=target.thumbv8m.main-none-eabi.cxx=/nix/store/wnnwk5vknch7d8jy3cdykbsnn5qrmjj3-armv8m-unknown-none-eabi-gcc-wrapper-14.2.1.20250322/bin/armv8m-unknown-none-eabi-c++ --set=target.x86_64-unknown-linux-gnu.crt-static=false --set=target.x86_64-unknown-linux-gnu.crt-static=false --set=target.thumbv8m.main-none-eabi.crt-static=false --enable-llvm-link-shared --set=target.x86_64-unknown-linux-gnu.llvm-config=/nix/store/bw1i8r1ilp79xyybr2n633aq3jj1wrrd-llvm-19.1.7-dev/bin/llvm-config --set=target.x86_64-unknown-linux-gnu.llvm-config=/nix/store/bw1i8r1ilp79xyybr2n633aq3jj1wrrd-llvm-19.1.7-dev/bin/llvm-config --set=target.thumbv8m.main-none-eabi.llvm-config=/nix/store/bw1i8r1ilp79xyybr2n633aq3jj1wrrd-llvm-19.1.7-dev/bin/llvm-config --disable-llvm-bitcode-linker --disable-docs
    armv8m-unknown-none-eabi-rustc> configure: processing command line
    armv8m-unknown-none-eabi-rustc> configure:
    armv8m-unknown-none-eabi-rustc> configure: build.configure-args := ['--prefix=/nix/store/wscr78z0s5v2hxx3p1n4qjgj ...
    armv8m-unknown-none-eabi-rustc> configure: install.prefix       := /nix/store/wscr78z0s5v2hxx3p1n4qjgjnds8dm0g-ar ...
    armv8m-unknown-none-eabi-rustc> configure: install.sysconfdir   := /nix/store/wscr78z0s5v2hxx3p1n4qjgjnds8dm0g-ar ...
    armv8m-unknown-none-eabi-rustc> configure: rust.channel         := stable
    armv8m-unknown-none-eabi-rustc> configure: build.rustc          := /nix/store/f9zdz15l2zd408yq7a3bgrj593kpwjqx-ru ...
    armv8m-unknown-none-eabi-rustc> configure: build.cargo          := /nix/store/ygri5mmqmril5ll9lhawa01faa2qhdvd-ca ...
    armv8m-unknown-none-eabi-rustc> configure: target.x86_64-unknown-linux-gnu.cc := /nix/store/a0d7m3zn9p2dfa1h7ag9h ...
    armv8m-unknown-none-eabi-rustc> configure: target.x86_64-unknown-linux-gnu.cc := /nix/store/a0d7m3zn9p2dfa1h7ag9h ...
    armv8m-unknown-none-eabi-rustc> configure: target.thumbv8m.main-none-eabi.cc := /nix/store/wnnwk5vknch7d8jy3cdykb ...
    armv8m-unknown-none-eabi-rustc> configure: target.thumbv8m.main-none-eabi.linker := /nix/store/wnnwk5vknch7d8jy3c ...
    armv8m-unknown-none-eabi-rustc> configure: target.x86_64-unknown-linux-gnu.linker := /nix/store/a0d7m3zn9p2dfa1h7 ...
    armv8m-unknown-none-eabi-rustc> configure: target.x86_64-unknown-linux-gnu.linker := /nix/store/a0d7m3zn9p2dfa1h7 ...
    armv8m-unknown-none-eabi-rustc> configure: target.x86_64-unknown-linux-gnu.cxx := /nix/store/a0d7m3zn9p2dfa1h7ag9 ...
    armv8m-unknown-none-eabi-rustc> configure: target.x86_64-unknown-linux-gnu.cxx := /nix/store/a0d7m3zn9p2dfa1h7ag9 ...
    armv8m-unknown-none-eabi-rustc> configure: target.thumbv8m.main-none-eabi.cxx := /nix/store/wnnwk5vknch7d8jy3cdyk ...
    armv8m-unknown-none-eabi-rustc> configure: target.x86_64-unknown-linux-gnu.crt-static := False
    armv8m-unknown-none-eabi-rustc> configure: target.x86_64-unknown-linux-gnu.crt-static := False
    armv8m-unknown-none-eabi-rustc> configure: target.thumbv8m.main-none-eabi.crt-static := False
    armv8m-unknown-none-eabi-rustc> configure: target.x86_64-unknown-linux-gnu.llvm-config := /nix/store/bw1i8r1ilp79 ...
    armv8m-unknown-none-eabi-rustc> configure: target.x86_64-unknown-linux-gnu.llvm-config := /nix/store/bw1i8r1ilp79 ...
    armv8m-unknown-none-eabi-rustc> configure: target.thumbv8m.main-none-eabi.llvm-config := /nix/store/bw1i8r1ilp79x ...
    armv8m-unknown-none-eabi-rustc> configure: build.tools          := ['rustc', 'rustdoc', 'rust-analyzer-proc-macro ...
    armv8m-unknown-none-eabi-rustc> configure: rust.rpath           := True
    armv8m-unknown-none-eabi-rustc> configure: build.vendor         := True
    armv8m-unknown-none-eabi-rustc> configure: rust.lld             := False
    armv8m-unknown-none-eabi-rustc> configure: build.build          := x86_64-unknown-linux-gnu
    armv8m-unknown-none-eabi-rustc> configure: build.host           := ['x86_64-unknown-linux-gnu']
    armv8m-unknown-none-eabi-rustc> configure: build.target         := ['thumbv8m.main-none-eabi']
    armv8m-unknown-none-eabi-rustc> configure: llvm.link-shared     := True
    armv8m-unknown-none-eabi-rustc> configure: rust.llvm-bitcode-linker := False
    armv8m-unknown-none-eabi-rustc> configure: build.docs           := False
    armv8m-unknown-none-eabi-rustc> configure: profile              := dist
    armv8m-unknown-none-eabi-rustc> Traceback (most recent call last):
    armv8m-unknown-none-eabi-rustc>   File "/build/rustc-1.86.0-src/./src/bootstrap/configure.py", line 762, in <module>
    armv8m-unknown-none-eabi-rustc>     section_order, sections, targets = parse_args(sys.argv[1:])
    armv8m-unknown-none-eabi-rustc>                                        ^^^^^^^^^^^^^^^^^^^^^^^^
    armv8m-unknown-none-eabi-rustc>   File "/build/rustc-1.86.0-src/./src/bootstrap/configure.py", line 446, in parse_args
    armv8m-unknown-none-eabi-rustc>     return parse_example_config(known_args, config)
    armv8m-unknown-none-eabi-rustc>            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    armv8m-unknown-none-eabi-rustc>   File "/build/rustc-1.86.0-src/./src/bootstrap/configure.py", line 622, in parse_example_config
    armv8m-unknown-none-eabi-rustc>     configure_file(sections, top_level_keys, targets, config)
    armv8m-unknown-none-eabi-rustc>   File "/build/rustc-1.86.0-src/./src/bootstrap/configure.py", line 709, in configure_file
    armv8m-unknown-none-eabi-rustc>     configure_section(targets[target], section_config[target])
    armv8m-unknown-none-eabi-rustc>   File "/build/rustc-1.86.0-src/./src/bootstrap/configure.py", line 683, in configure_section
    armv8m-unknown-none-eabi-rustc>     raise RuntimeError("failed to find config line for {}".format(key))
    armv8m-unknown-none-eabi-rustc> RuntimeError: failed to find config line for main-none-eabi

This is probably related to
https://github.com/rust-lang/rust/issues/130602 and thus target string
should be double-quotted so bootstrap/configure.py can parse it
correctly.

Changes tested on x86_64-linux build machine with rustc built for
"thumb8vm.main-none-eabi" target.

0 files changed, 0 insertions, 0 deletions