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# enable i686-unknown-linux-gnu target
# and replace pentium4 (SSE2) with pentium3 (no SSE2) in the compiler spec file
#
# Also trying to reduce memory usage by building with
# -debuginfo-level-std=1
# see https://github.com/rust-lang/rust/issues/60294
source+=(config.toml.patch)
sha256sums+=('a8b42b5f47c0eaebafbb2cd1f39d2f944945cbb55e87d4dc21c7bd5b1b8964d8')
eval "$(
declare -f prepare | \
sed '
$ i patch -p1 -i "$srcdir/config.toml.patch"
'
)"
# stop insanity of nproc (see FS#62952)
eval "$(
declare -f build | \
sed '
s/-j "$(nproc)"/-j1/
'
)"
if [ "${CARCH}" != 'pentium4' ]; then
eval "$(
declare -f prepare | \
sed '
$ i sed -i "s/pentium4/pentium3/g" "$srcdir/rustc-$pkgver-src/vendor/rustc-ap-rustc_target/src/spec/i686_unknown_linux_gnu.rs"
$ i sed -i "s/pentium4/pentium3/g" "$srcdir/rustc-$pkgver-src/compiler/rustc_target/src/spec/i686_unknown_linux_gnu.rs"
$ i sed -i "s/87a043fd55d96d4bf471c7969df0912ccebdb1a5d52d157f4896af52f7af6d41/1c032d897011bc643fdb241251280d12c1b8cfd3ca3a31a8a2a107f8bf7dce13/g" "$srcdir/rustc-$pkgver-src/vendor/rustc-ap-rustc_target/.cargo-checksum.json"
'
)"
fi
# Don't move lib32 support into rust32-lib, we are on 32-bit in the end
# and don't draw a symlink to 64-bit libraries (but to 32-bit instead)
# move rust-musl though, also patch architecture for musl accordingly
eval "$(
declare -f build | \
sed '
/mv.*i686-unknown-linux-gnu.*/d
s/x86_64-unknown-linux-musl/i686-unknown-linux-musl/
'
)"
eval "$(
declare -f package_rust | \
sed '
/ln /s/x86_64-unknown-linux-gnu/i686-unknown-linux-gnu/g
'
)"
eval "$(
declare -f package_rust-musl | \
sed '
s/x86_64-unknown-linux-musl/i686-unknown-linux-musl/
'
)"
# remove 32-bit stuff (shouldn't that be removed automatically?)
pkgname=(
$(
printf '%s\n' "${pkgname[@]}" | \
grep -v '^lib32-rust-libs'
)
)
makedepends=(${makedepends[@]//lib32-gcc-libs/})
# Enable on demand, if your previous rust is broken use previous version
# from build-support (this is preferable to using rust-bin below, but
# requires all intermediate versions of rust to be built
#makedepends=(${makedepends[@]//rust/})
#makedepends+=('rust148')
# Enable on demand, if your previous rust is broken use previous version
# from build-support
#makedepends=(${makedepends[@]//rust/})
#makedepends+=('rust-bin')
# rust 1.56 is built against llvm12.0, so force that in as a make dependency
makedepends+=('llvm12-libs')
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