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Remove old MinGW workaround #158021

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Remove old MinGW workaround #158021

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b1483e3
Update mingw-w64 C toolchain
mati865 Jun 17, 2026
fddee44
Remove old mingw-w64 workaround
mati865 Jun 17, 2026
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8 changes: 0 additions & 8 deletions src/ci/run.sh
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Expand Up @@ -79,14 +79,6 @@ RUST_CONFIGURE_ARGS="$RUST_CONFIGURE_ARGS --set rust.codegen-units-std=1"
# of our CPU resources.
RUST_CONFIGURE_ARGS="$RUST_CONFIGURE_ARGS --set dist.compression-profile=balanced"

# When building for mingw, limit the number of parallel linker jobs during
# the LLVM build, as not to run out of memory.
# This is an attempt to fix the spurious build error tracked by
# https://github.com/rust-lang/rust/issues/108227.
if isKnownToBeMingwBuild; then
RUST_CONFIGURE_ARGS="$RUST_CONFIGURE_ARGS --set llvm.link-jobs=1"
fi

# Only produce xz tarballs on CI. gz tarballs will be generated by the release
# process by recompressing the existing xz ones. This decreases the storage
# space required for CI artifacts.
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4 changes: 2 additions & 2 deletions src/ci/scripts/install-mingw.sh
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Expand Up @@ -6,8 +6,8 @@ IFS=$'\n\t'

source "$(cd "$(dirname "$0")" && pwd)/../shared.sh"

MINGW_ARCHIVE_32="i686-14.1.0-release-posix-dwarf-msvcrt-rt_v12-rev0.7z"
MINGW_ARCHIVE_64="x86_64-14.1.0-release-posix-seh-msvcrt-rt_v12-rev0.7z"
MINGW_ARCHIVE_32="i686-14.2.0-release-posix-dwarf-msvcrt-rt_v12-rev2.7z"
MINGW_ARCHIVE_64="x86_64-14.2.0-release-posix-seh-msvcrt-rt_v12-rev2.7z"
LLVM_MINGW_ARCHIVE_AARCH64="llvm-mingw-20251104-ucrt-aarch64.zip"
LLVM_MINGW_ARCHIVE_X86_64="llvm-mingw-20251104-ucrt-x86_64.zip"

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12 changes: 12 additions & 0 deletions src/doc/rustc/src/platform-support/windows-gnu.md
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Expand Up @@ -26,6 +26,18 @@ They follow Windows calling convention for `extern "C"`.

Like with any other Windows target, created binaries are in PE format.

### C toolchain

The targets are built and tested using a reasonably modern C toolchain, and it should be considered as the oldest supported version:

* GNU Binutils 2.44
* GCC 14.2
* mingw-w64 12.0.0
* MSVCRT library as the default

Using older tools (especially Binutils) may not work properly, due to the number of issues plaguing older versions of Binutils.
The supported toolchain versions are subject to change.

## Building Rust programs

Rust does ship a pre-compiled std library for those targets.
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