Rustc-1.93.1

Installation of Rustc

To install into the /opt directory, remove any existing /opt/rustc symlink and create a new directory (i.e. with a different name if trying a modified build of the same version). As the root user:

mkdir -pv /opt/rustc-1.93.1 &&
ln -svfn rustc-1.93.1 /opt/rustc

Create a suitable bootstrap.toml file which will configure the build.

cat > bootstrap.toml << "EOF" &&
# See bootstrap.toml.example for more possible options,
# and see src/bootstrap/defaults/bootstrap.dist.toml for a few options
# automatically set when building from a release tarball.
# A decent number of options need to be changed.

# Tell x.py that the editors have reviewed the content of this file
# and updated it to follow the major changes of the building system.
# x.py during the build process will warn about it if this is not set.
change-id = 148795

[llvm]
# When using system-installed LLVM, prefer the shared libraries.
link-shared = true

EOF
if [ ! -f /usr/lib32/libc.so.6 ]; then
cat >> bootstrap.toml << "EOF"
# If the shipped LLVM source will be built, only enable the x86 target
# instead of all the targets supported by LLVM.
targets = "X86"

EOF
fi
cat >> bootstrap.toml << "EOF"
[build]
description = "for GLFS #cbdfa8"
EOF
if [ -f /usr/lib32/libc.so.6 ]; then
cat >> bootstrap.toml << "EOF"
target = [
  "x86_64-unknown-linux-gnu",
  "i686-unknown-linux-gnu",
]
EOF
fi &&
cat >> bootstrap.toml << "EOF" &&

# Omit the documentation to save time and space (the default is to build them).
docs = false

# Do not look for new versions of dependencies online.
locked-deps = true

# Specify which extended tools to install.
tools = ["cargo", "clippy", "rustdoc", "rustfmt", "src"]

[install]
prefix = "/opt/rustc-1.93.1"
docdir = "share/doc/rustc-1.93.1"

[rust]
channel = "stable"

# Uncomment if FileCheck has been installed.
#codegen-tests = false

# If you didn't build in NVPTX support, you can uncomment this.
#llvm-bitcode-linker = false

# Enable the same optimizations as the official upstream build.
lto = "thin"
codegen-units = 1

EOF
if [ -f /usr/lib32/libc.so.6 ]; then
cat >> bootstrap.toml << "EOF"
[target.x86_64-unknown-linux-gnu]
cc = "/usr/bin/gcc"
cxx = "/usr/bin/g++"
ar = "/usr/bin/gcc-ar"
ranlib = "/usr/bin/gcc-ranlib"
llvm-config = "/usr/bin/llvm-config"

[target.i686-unknown-linux-gnu]
cc = "/usr/bin/gcc"
cxx = "/usr/bin/g++"
ar = "/usr/bin/gcc-ar"
ranlib = "/usr/bin/gcc-ranlib"
EOF
else
cat >> bootstrap.toml << "EOF"
[target.x86_64-unknown-linux-gnu]
llvm-config = "/usr/bin/llvm-config"

[target.i686-unknown-linux-gnu]
llvm-config = "/usr/bin/llvm-config"
EOF
fi

Compile Rust by running the following commands:

./x.py build

Now, as the root user, install the package:

./x.py install

Still as the root user, fix the installation of the documentation, symlink a Zsh completion file into the correct location, and move a Bash completion file into the location that is recommended by the Bash completion maintainers:

rm -fv /opt/rustc-1.93.1/share/doc/rustc-1.93.1/*.old   &&
install -vDm644 README.md \
  -t /opt/rustc-1.93.1/share/doc/rustc-1.93.1/ &&
install -vdm755 /usr/share/zsh/site-functions &&
ln -sfv /opt/rustc/share/zsh/site-functions/_cargo \
        /usr/share/zsh/site-functions &&
mv -v /etc/bash_completion.d/cargo \
      /usr/share/bash-completion/completions