commit:     0c6ec743ace5257046552f4d1745bbf46f2ed73c
Author:     Georgy Yakovlev <gyakovlev <AT> gentoo <DOT> org>
AuthorDate: Fri Jul 31 08:01:57 2020 +0000
Commit:     Georgy Yakovlev <gyakovlev <AT> gentoo <DOT> org>
CommitDate: Fri Jul 31 09:20:33 2020 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=0c6ec743

dev-lang/rust: bump to 1.45.1

Bug: https://bugs.gentoo.org/734018
Package-Manager: Portage-3.0.1, Repoman-2.3.23
Signed-off-by: Georgy Yakovlev <gyakovlev <AT> gentoo.org>

 dev-lang/rust/Manifest           |   1 +
 dev-lang/rust/rust-1.45.1.ebuild | 504 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 505 insertions(+)

diff --git a/dev-lang/rust/Manifest b/dev-lang/rust/Manifest
index cdb786770d7..a212b99c9c1 100644
--- a/dev-lang/rust/Manifest
+++ b/dev-lang/rust/Manifest
@@ -73,3 +73,4 @@ DIST rustc-1.42.0-src.tar.xz 94186592 BLAKE2B 
82298ef3da44188546bb945bcbfc1af630
 DIST rustc-1.43.1-src.tar.xz 94405276 BLAKE2B 
8679fe937abc4f758f3e35c2542d57cc1ad0bb72111597881873b30779b6e7b6711baa52493cb5ff954bf9cd31367b36db4e4fc8676635026059197a33659048
 SHA512 
24bb01237b1f3f5412109290bb4406b9742cf8956162f4090a98ed3a59a6e2e8dda399452bec1c93c8afdcf5effd98e4825e7f218238e0e88735c1ff4a5b385f
 DIST rustc-1.44.1-src.tar.xz 94756856 BLAKE2B 
60f536c3ba0fa1fec4b6333ee57809ee5226090ad5041c14a136b4356ff3b898062e06c3fe54effe873e27931ac8fcb902cd48a38615a8de7eebc6ecb3bdc2bd
 SHA512 
1c17002edae844a710db9b144c17171416330dc565343c65af8a6e112fb61555e2025bb4cf33cac1229d7df689e6ff8858b91ae00552400ccacafaf1de11849b
 DIST rustc-1.45.0-src.tar.xz 98677856 BLAKE2B 
2558ba9444a53268de4f1604f13e701077a27e9480c97732a30706d656682672c17f87d8c015da3b839ed3b38081ef8d132bbab3522911bf9b50f018367e6ec7
 SHA512 
ff049eb65b36e6c64531d56251ebd446336a782f26504eccf375df1c22fa94b5f18e84660cef423edb815c1b31a1a7c9e57aea4aa0779576f3b0d7e81e19427b
+DIST rustc-1.45.1-src.tar.xz 98686408 BLAKE2B 
49eec97cccc9932915877cf28cc6b27b8008d5fecc2c6255d8974d9ee52375b95933d0052fad23ed2e60f4f08fcc305e1ca47239e8f5adaa8a3acb62eb2c1e14
 SHA512 
ef71a1706c84fa8557f481d310033285a41ecd9b8d537bacb846d01ed9954b679b915272db57cd96d5ee097cc0134899e584d517c467a9d2949496312e5995df

diff --git a/dev-lang/rust/rust-1.45.1.ebuild b/dev-lang/rust/rust-1.45.1.ebuild
new file mode 100644
index 00000000000..e1a02923012
--- /dev/null
+++ b/dev-lang/rust/rust-1.45.1.ebuild
@@ -0,0 +1,504 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python3_{6,7,8} )
+
+inherit bash-completion-r1 check-reqs estack flag-o-matic llvm multiprocessing 
multilib-build python-any-r1 rust-toolchain toolchain-funcs
+
+if [[ ${PV} = *beta* ]]; then
+       betaver=${PV//*beta}
+       BETA_SNAPSHOT="${betaver:0:4}-${betaver:4:2}-${betaver:6:2}"
+       MY_P="rustc-beta"
+       SLOT="beta/${PV}"
+       SRC="${BETA_SNAPSHOT}/rustc-beta-src.tar.xz"
+else
+       ABI_VER="$(ver_cut 1-2)"
+       SLOT="stable/${ABI_VER}"
+       MY_P="rustc-${PV}"
+       SRC="${MY_P}-src.tar.xz"
+       KEYWORDS="~amd64 ~arm ~arm64 ~ppc64 ~x86"
+fi
+
+RUST_STAGE0_VERSION="1.$(($(ver_cut 2) - 1)).1"
+
+DESCRIPTION="Systems programming language from Mozilla"
+HOMEPAGE="https://www.rust-lang.org/";
+
+SRC_URI="
+       https://static.rust-lang.org/dist/${SRC} -> rustc-${PV}-src.tar.xz
+       !system-bootstrap? ( $(rust_all_arch_uris rust-${RUST_STAGE0_VERSION}) )
+"
+
+ALL_LLVM_TARGETS=( AArch64 AMDGPU ARM BPF Hexagon Lanai Mips MSP430
+       NVPTX PowerPC RISCV Sparc SystemZ WebAssembly X86 XCore )
+ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
+LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/?}
+
+LICENSE="|| ( MIT Apache-2.0 ) BSD-1 BSD-2 BSD-4 UoI-NCSA"
+
+IUSE="clippy cpu_flags_x86_sse2 debug doc libressl miri nightly 
parallel-compiler rls rustfmt system-bootstrap system-llvm wasm 
${ALL_LLVM_TARGETS[*]}"
+
+# Please keep the LLVM dependency block separate. Since LLVM is slotted,
+# we need to *really* make sure we're not pulling more than one slot
+# simultaneously.
+
+# How to use it:
+# 1. List all the working slots (with min versions) in ||, newest first.
+# 2. Update the := to specify *max* version, e.g. < 11.
+# 3. Specify LLVM_MAX_SLOT, e.g. 10.
+LLVM_DEPEND="
+       || (
+               sys-devel/llvm:10[${LLVM_TARGET_USEDEPS// /,}]
+               sys-devel/llvm:9[${LLVM_TARGET_USEDEPS// /,}]
+       )
+       <sys-devel/llvm-11:=
+       wasm? ( sys-devel/lld )
+"
+LLVM_MAX_SLOT=10
+
+BOOTSTRAP_DEPEND="|| ( >=dev-lang/rust-1.$(($(ver_cut 2) - 1)) 
>=dev-lang/rust-bin-1.$(($(ver_cut 2) - 1)) )"
+
+BDEPEND="${PYTHON_DEPS}
+       app-eselect/eselect-rust
+       || (
+               >=sys-devel/gcc-4.7
+               >=sys-devel/clang-3.5
+       )
+       system-bootstrap? ( ${BOOTSTRAP_DEPEND} )
+       !system-llvm? (
+               dev-util/cmake
+               dev-util/ninja
+       )
+"
+
+# libgit2 should be at least same as bundled into libgit-sys #707746
+DEPEND="
+       >=dev-libs/libgit2-0.99:=
+       net-libs/libssh2:=
+       net-libs/http-parser:=
+       net-misc/curl:=[http2,ssl]
+       sys-libs/zlib:=
+       !libressl? ( dev-libs/openssl:0= )
+       libressl? ( dev-libs/libressl:0= )
+       elibc_musl? ( sys-libs/libunwind )
+       system-llvm? (
+               ${LLVM_DEPEND}
+       )
+"
+
+RDEPEND="${DEPEND}
+       app-eselect/eselect-rust
+"
+
+REQUIRED_USE="|| ( ${ALL_LLVM_TARGETS[*]} )
+       miri? ( nightly )
+       parallel-compiler? ( nightly )
+       wasm? ( llvm_targets_WebAssembly )
+       x86? ( cpu_flags_x86_sse2 )
+"
+
+QA_FLAGS_IGNORED="
+       usr/bin/.*-${PV}
+       usr/lib.*/lib.*.so
+       usr/lib/rustlib/.*/bin/rust-lld
+       usr/lib/rustlib/.*/codegen-backends/librustc_codegen_llvm-llvm.so
+       usr/lib/rustlib/.*/lib/lib.*.so
+"
+
+QA_SONAME="
+       usr/lib.*/lib.*.so
+       usr/lib.*/librustc_macros.*.s
+"
+
+# tests need a bit more work, currently they are causing multiple
+# re-compilations and somewhat fragile.
+RESTRICT="test"
+
+PATCHES=(
+       "${FILESDIR}"/0012-Ignore-broken-and-non-applicable-tests.patch
+       "${FILESDIR}"/1.44.0-libressl.patch
+)
+
+S="${WORKDIR}/${MY_P}-src"
+
+toml_usex() {
+       usex "$1" true false
+}
+
+pre_build_checks() {
+       CHECKREQS_DISK_BUILD="9G"
+       eshopts_push -s extglob
+       if is-flagq '-g?(gdb)?([1-9])'; then
+               CHECKREQS_DISK_BUILD="15G"
+       fi
+       eshopts_pop
+       check-reqs_pkg_setup
+}
+
+pkg_pretend() {
+       pre_build_checks
+}
+
+pkg_setup() {
+       pre_build_checks
+       python-any-r1_pkg_setup
+
+       # required to link agains system libs, otherwise
+       # crates use bundled sources and compile own static version
+       export LIBGIT2_SYS_USE_PKG_CONFIG=1
+       export LIBSSH2_SYS_USE_PKG_CONFIG=1
+       export PKG_CONFIG_ALLOW_CROSS=1
+
+       if use system-llvm; then
+               llvm_pkg_setup
+
+               local llvm_config="$(get_llvm_prefix 
"$LLVM_MAX_SLOT")/bin/llvm-config"
+
+               export LLVM_LINK_SHARED=1
+               export RUSTFLAGS="${RUSTFLAGS} -Lnative=$("${llvm_config}" 
--libdir)"
+       fi
+}
+
+src_prepare() {
+       if ! use system-bootstrap; then
+               local rust_stage0_root="${WORKDIR}"/rust-stage0
+               local rust_stage0="rust-${RUST_STAGE0_VERSION}-$(rust_abi)"
+
+               "${WORKDIR}/${rust_stage0}"/install.sh --disable-ldconfig \
+                       --destdir="${rust_stage0_root}" --prefix=/ || die
+       fi
+
+       default
+}
+
+src_configure() {
+       local rust_target="" rust_targets="" arch_cflags
+
+       # Collect rust target names to compile standard libs for all ABIs.
+       for v in $(multilib_get_enabled_abi_pairs); do
+               rust_targets="${rust_targets},\"$(rust_abi $(get_abi_CHOST 
${v##*.}))\""
+       done
+       if use wasm; then
+               rust_targets="${rust_targets},\"wasm32-unknown-unknown\""
+               if use system-llvm; then
+                       # un-hardcode rust-lld linker for this target
+                       # https://bugs.gentoo.org/715348
+                       sed -i '/linker:/ s/rust-lld/wasm-ld/' 
src/librustc_target/spec/wasm32_base.rs || die
+               fi
+       fi
+       rust_targets="${rust_targets#,}"
+
+       local tools="\"cargo\","
+       if use clippy; then
+               tools="\"clippy\",$tools"
+       fi
+       if use miri; then
+               tools="\"miri\",$tools"
+       fi
+       if use rls; then
+               tools="\"rls\",\"analysis\",\"src\",$tools"
+       fi
+       if use rustfmt; then
+               tools="\"rustfmt\",$tools"
+       fi
+
+       local rust_stage0_root
+       if use system-bootstrap; then
+               rust_stage0_root="$(rustc --print sysroot)"
+       else
+               rust_stage0_root="${WORKDIR}"/rust-stage0
+       fi
+
+       rust_target="$(rust_abi)"
+
+       cat <<- EOF > "${S}"/config.toml
+               [llvm]
+               optimize = $(toml_usex !debug)
+               release-debuginfo = $(toml_usex debug)
+               assertions = $(toml_usex debug)
+               ninja = true
+               targets = "${LLVM_TARGETS// /;}"
+               experimental-targets = ""
+               link-shared = $(toml_usex system-llvm)
+               [build]
+               build = "${rust_target}"
+               host = ["${rust_target}"]
+               target = [${rust_targets}]
+               cargo = "${rust_stage0_root}/bin/cargo"
+               rustc = "${rust_stage0_root}/bin/rustc"
+               docs = $(toml_usex doc)
+               compiler-docs = $(toml_usex doc)
+               submodules = false
+               python = "${EPYTHON}"
+               locked-deps = true
+               vendor = true
+               extended = true
+               tools = [${tools}]
+               verbose = 2
+               sanitizers = false
+               profiler = false
+               cargo-native-static = false
+               [install]
+               prefix = "${EPREFIX}/usr"
+               libdir = "lib"
+               docdir = "share/doc/${PF}"
+               mandir = "share/man"
+               [rust]
+               optimize = true
+               debug = $(toml_usex debug)
+               debug-assertions = $(toml_usex debug)
+               debuginfo-level-rustc = 0
+               backtrace = true
+               incremental = false
+               default-linker = "$(tc-getCC)"
+               parallel-compiler = $(toml_usex parallel-compiler)
+               channel = "$(usex nightly nightly stable)"
+               rpath = false
+               verbose-tests = true
+               optimize-tests = $(toml_usex !debug)
+               codegen-tests = true
+               dist-src = false
+               remap-debuginfo = true
+               lld = $(usex system-llvm false $(toml_usex wasm))
+               backtrace-on-ice = true
+               jemalloc = false
+               [dist]
+               src-tarball = false
+       EOF
+
+       for v in $(multilib_get_enabled_abi_pairs); do
+               rust_target=$(rust_abi $(get_abi_CHOST ${v##*.}))
+               arch_cflags="$(get_abi_CFLAGS ${v##*.})"
+
+               cat <<- EOF >> "${S}"/config.env
+                       CFLAGS_${rust_target}=${arch_cflags}
+               EOF
+
+               cat <<- EOF >> "${S}"/config.toml
+                       [target.${rust_target}]
+                       cc = "$(tc-getBUILD_CC)"
+                       cxx = "$(tc-getBUILD_CXX)"
+                       linker = "$(tc-getCC)"
+                       ar = "$(tc-getAR)"
+               EOF
+               # librustc_target/spec/linux_musl_base.rs sets 
base.crt_static_default = true;
+               if use elibc_musl; then
+                       cat <<- EOF >> "${S}"/config.toml
+                               crt-static = false
+                       EOF
+               fi
+               if use system-llvm; then
+                       cat <<- EOF >> "${S}"/config.toml
+                               llvm-config = "$(get_llvm_prefix 
"${LLVM_MAX_SLOT}")/bin/llvm-config"
+                       EOF
+               fi
+       done
+       if use wasm; then
+               cat <<- EOF >> "${S}"/config.toml
+                       [target.wasm32-unknown-unknown]
+                       linker = "$(usex system-llvm lld rust-lld)"
+               EOF
+       fi
+
+       if [[ -n ${I_KNOW_WHAT_I_AM_DOING_CROSS} ]]; then #whitespace 
intentionally shifted below
+       # experimental cross support
+       # discussion: https://bugs.gentoo.org/679878
+       # TODO: c*flags, clang, system-llvm, cargo.eclass target support
+       # it would be much better if we could split out stdlib
+       # complilation to separate ebuild and abuse CATEGORY to
+       # just install to /usr/lib/rustlib/<target>
+
+       # extra targets defined as a bash array
+       # spec format:  <LLVM target>:<rust-target>:<CTARGET>
+       # best place would be /etc/portage/env/dev-lang/rust
+       # Example:
+       # RUST_CROSS_TARGETS=(
+       #       "AArch64:aarch64-unknown-linux-gnu:aarch64-unknown-linux-gnu"
+       # )
+       # no extra hand holding is done, no target transformations, all
+       # values are passed as-is with just basic checks, so it's up to user to 
supply correct values
+       # valid rust targets can be obtained with
+       #       rustc --print target-list
+       # matching cross toolchain has to be installed
+       # matching LLVM_TARGET has to be enabled for both rust and llvm (if 
using system one)
+       # only gcc toolchains installed with crossdev are checked for now.
+
+       # BUG: we can't pass host flags to cross compiler, so just filter for 
now
+       # BUG: this should be more fine-grained.
+       filter-flags '-mcpu=*' '-march=*' '-mtune=*'
+
+       local cross_target_spec
+       for cross_target_spec in "${RUST_CROSS_TARGETS[@]}";do
+               # extracts first element form <LLVM 
target>:<rust-target>:<CTARGET>
+               local cross_llvm_target="${cross_target_spec%%:*}"
+               # extracts toolchain triples, <rust-target>:<CTARGET>
+               local cross_triples="${cross_target_spec#*:}"
+               # extracts first element after before : separator
+               local cross_rust_target="${cross_triples%%:*}"
+               # extracts last element after : separator
+               local cross_toolchain="${cross_triples##*:}"
+               use llvm_targets_${cross_llvm_target} || die "need 
llvm_targets_${cross_llvm_target} target enabled"
+               command -v ${cross_toolchain}-gcc > /dev/null 2>&1 || die "need 
${cross_toolchain} cross toolchain"
+
+               cat <<- EOF >> "${S}"/config.toml
+                       [target.${cross_rust_target}]
+                       cc = "${cross_toolchain}-gcc"
+                       cxx = "${cross_toolchain}-g++"
+                       linker = "${cross_toolchain}-gcc"
+                       ar = "${cross_toolchain}-ar"
+               EOF
+               if use system-llvm; then
+                       cat <<- EOF >> "${S}"/config.toml
+                               llvm-config = "$(get_llvm_prefix 
"${LLVM_MAX_SLOT}")/bin/llvm-config"
+                       EOF
+               fi
+
+               # append cross target to "normal" target list
+               # example 'target = ["powerpc64le-unknown-linux-gnu"]'
+               # becomes 'target = 
["powerpc64le-unknown-linux-gnu","aarch64-unknown-linux-gnu"]'
+
+               rust_targets="${rust_targets},\"${cross_rust_target}\""
+               sed -i "/^target = \[/ s#\[.*\]#\[${rust_targets}\]#" 
config.toml || die
+
+               ewarn
+               ewarn "Enabled ${cross_rust_target} rust target"
+               ewarn "Using ${cross_toolchain} cross toolchain"
+               ewarn
+               if ! has_version -b 'sys-devel/binutils[multitarget]' ; then
+                       ewarn "'sys-devel/binutils[multitarget]' is not 
installed"
+                       ewarn "'strip' will be unable to strip cross libraries"
+                       ewarn "cross targets will be installed with full debug 
information"
+                       ewarn "enable 'multitarget' USE flag for binutils to be 
able to strip object files"
+                       ewarn
+                       ewarn "Alternatively llvm-strip can be used, it 
supports stripping any target"
+                       ewarn "define STRIP=\"llvm-strip\" to use it 
(experimental)"
+                       ewarn
+               fi
+       done
+       fi # I_KNOW_WHAT_I_AM_DOING_CROSS
+
+       einfo "Rust configured with the following settings:"
+       cat "${S}"/config.toml || die
+}
+
+src_compile() {
+       env $(cat "${S}"/config.env) RUST_BACKTRACE=1\
+               "${EPYTHON}" ./x.py build -vv --config="${S}"/config.toml 
-j$(makeopts_jobs) || die
+}
+
+src_test() {
+       env $(cat "${S}"/config.env) RUST_BACKTRACE=1\
+               "${EPYTHON}" ./x.py test -vv --config="${S}"/config.toml 
-j$(makeopts_jobs) --no-doc --no-fail-fast \
+               src/test/codegen \
+               src/test/codegen-units \
+               src/test/compile-fail \
+               src/test/incremental \
+               src/test/mir-opt \
+               src/test/pretty \
+               src/test/run-fail \
+               src/test/run-make \
+               src/test/run-make-fulldeps \
+               src/test/ui \
+               src/test/ui-fulldeps || die
+}
+
+src_install() {
+       env $(cat "${S}"/config.env) DESTDIR="${D}" \
+               "${EPYTHON}" ./x.py install -vv --config="${S}"/config.toml || 
die
+
+       # bug #689562, #689160
+       rm "${D}/etc/bash_completion.d/cargo" || die
+       rmdir "${D}"/etc{/bash_completion.d,} || die
+       dobashcomp build/tmp/dist/cargo-image/etc/bash_completion.d/cargo
+
+       mv "${ED}/usr/bin/rustc" "${ED}/usr/bin/rustc-${PV}" || die
+       mv "${ED}/usr/bin/rustdoc" "${ED}/usr/bin/rustdoc-${PV}" || die
+       mv "${ED}/usr/bin/rust-gdb" "${ED}/usr/bin/rust-gdb-${PV}" || die
+       mv "${ED}/usr/bin/rust-gdbgui" "${ED}/usr/bin/rust-gdbgui-${PV}" || die
+       mv "${ED}/usr/bin/rust-lldb" "${ED}/usr/bin/rust-lldb-${PV}" || die
+       mv "${ED}/usr/bin/cargo" "${ED}/usr/bin/cargo-${PV}" || die
+       if use clippy; then
+               mv "${ED}/usr/bin/clippy-driver" 
"${ED}/usr/bin/clippy-driver-${PV}" || die
+               mv "${ED}/usr/bin/cargo-clippy" 
"${ED}/usr/bin/cargo-clippy-${PV}" || die
+       fi
+       if use miri; then
+               mv "${ED}/usr/bin/miri" "${ED}/usr/bin/miri-${PV}" || die
+               mv "${ED}/usr/bin/cargo-miri" "${ED}/usr/bin/cargo-miri-${PV}" 
|| die
+       fi
+       if use rls; then
+               mv "${ED}/usr/bin/rls" "${ED}/usr/bin/rls-${PV}" || die
+       fi
+       if use rustfmt; then
+               mv "${ED}/usr/bin/rustfmt" "${ED}/usr/bin/rustfmt-${PV}" || die
+               mv "${ED}/usr/bin/cargo-fmt" "${ED}/usr/bin/cargo-fmt-${PV}" || 
die
+       fi
+
+       # Move public shared libs to abi specific libdir
+       # Private and target specific libs MUST stay in 
/usr/lib/rustlib/${rust_target}/lib
+       if [[ $(get_libdir) != lib ]]; then
+               dodir /usr/$(get_libdir)
+               mv "${ED}/usr/lib"/*.so "${ED}/usr/$(get_libdir)/" || die
+       fi
+
+       dodoc COPYRIGHT
+       rm "${ED}/usr/share/doc/${P}"/*.old || die
+       rm "${ED}/usr/share/doc/${P}/LICENSE-APACHE" || die
+       rm "${ED}/usr/share/doc/${P}/LICENSE-MIT" || die
+
+       # note: eselect-rust adds EROOT to all paths below
+       cat <<-EOF > "${T}/provider-${P}"
+               /usr/bin/cargo
+               /usr/bin/rustdoc
+               /usr/bin/rust-gdb
+               /usr/bin/rust-gdbgui
+               /usr/bin/rust-lldb
+       EOF
+       if use clippy; then
+               echo /usr/bin/clippy-driver >> "${T}/provider-${P}"
+               echo /usr/bin/cargo-clippy >> "${T}/provider-${P}"
+       fi
+       if use miri; then
+               echo /usr/bin/miri >> "${T}/provider-${P}"
+               echo /usr/bin/cargo-miri >> "${T}/provider-${P}"
+       fi
+       if use rls; then
+               echo /usr/bin/rls >> "${T}/provider-${P}"
+       fi
+       if use rustfmt; then
+               echo /usr/bin/rustfmt >> "${T}/provider-${P}"
+               echo /usr/bin/cargo-fmt >> "${T}/provider-${P}"
+       fi
+
+       insinto /etc/env.d/rust
+       doins "${T}/provider-${P}"
+}
+
+pkg_postinst() {
+       eselect rust update --if-unset
+
+       elog "Rust installs a helper script for calling GDB and LLDB,"
+       elog "for your convenience it is installed under 
/usr/bin/rust-{gdb,lldb}-${PV}."
+
+       if has_version app-editors/emacs; then
+               elog "install app-emacs/rust-mode to get emacs support for 
rust."
+       fi
+
+       if has_version app-editors/gvim || has_version app-editors/vim; then
+               elog "install app-vim/rust-vim to get vim support for rust."
+       fi
+
+       if use elibc_musl; then
+               ewarn "${PN} on *-musl targets is configured with crt-static"
+               ewarn ""
+               ewarn "you will need to set RUSTFLAGS=\"-C 
target-feature=-crt-static\" in make.conf"
+               ewarn "to use it with portage, otherwise you may see failures 
like"
+               ewarn "error: cannot produce proc-macro for serde_derive 
v1.0.98 as the target "
+               ewarn "x86_64-unknown-linux-musl does not support these crate 
types"
+       fi
+}
+
+pkg_postrm() {
+       eselect rust cleanup
+}

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