PKGBUILD: Fix linker failure on LTO enabled

I guess that this problem related GCC's LTO and
LLVM's one have not compatibility.

See briansmith/ring#1444

Signed-off-by: Shohei Maruyama <[email protected]>

Author: cheat-sc

.SRCINFO

@@ -1,13 +1,15 @@
 pkgbase = turbo
 	pkgdesc = Incremental bundler and build system optimized for JavaScript and TypeScript, written in Rust – including Turbopack and Turborepo.
 	pkgver = 1.12.4
-	pkgrel = 1
+	pkgrel = 2
 	url = https://turbo.build
 	arch = x86_64
 	license = MPL
 	makedepends = cargo-nightly
 	makedepends = protobuf
 	makedepends = capnproto
+	makedepends = clang
+	makedepends = lld
 	provides = turbopack
 	provides = turborepo
 	source = turbo-1.12.4.tar.gz::https://github.com/vercel/turbo/archive/refs/tags/v1.12.4.tar.gz

PKGBUILD

@@ -2,7 +2,7 @@
 
 pkgname='turbo'
 pkgver=1.12.4
-pkgrel=1
+pkgrel=2
 pkgdesc='Incremental bundler and build system optimized for JavaScript and TypeScript, written in Rust – including Turbopack and Turborepo.'
 arch=('x86_64')
 url='https://turbo.build'
@@ -11,7 +11,7 @@ provides=('turbopack' 'turborepo')
 source=(
 	"${pkgname}-${pkgver}.tar.gz::https://github.com/vercel/turbo/archive/refs/tags/v${pkgver}.tar.gz"
 )
-makedepends=('cargo-nightly' 'protobuf' 'capnproto')
+makedepends=('cargo-nightly' 'protobuf' 'capnproto' 'clang' 'lld')
 sha256sums=(
 	'8a0d51816a9daf55f6e35f13d7cc2e6da6de28afa24a26c3ee6af2ec06a7c0c4'
 )
@@ -26,6 +26,8 @@ build() {
 	cd "${pkgname}-${pkgver}"
 
 	export CARGO_TARGET_DIR=target
+	export RUSTFLAGS='-Clinker-plugin-lto -Clinker=clang -Clink-arg=-fuse-ld=lld'
+	export CC=clang
 	cargo build --frozen --release -p turbo
 }