#!/bin/bash

MAKEDEPS=(cmake )
DEPS=(curl gcc libssh2)

PKG_VER=1.58.1
SOURCE=https://static.rust-lang.org/dist/rustc-$PKG_VER-src.tar.gz
DESC="Systems programming language focused on safety, speed and concurrency"

prepare () {
    mkdir $PKG_DEST/opt/rustc-$PKG_VER             &&
    ln -svfin rustc-$PKG_VER $PKG_DEST/opt/rustc

    cat << EOF > config.toml
# see config.toml.example for more possible options
# See the 8.4 book for an example using shipped LLVM
# e.g. if not installing clang, or using a version before 10.0
[llvm]
# by default, rust will build for a myriad of architectures
targets = "X86"

# When using system llvm prefer shared libraries
link-shared = true

[build]
# omit docs to save time and space (default is to build them)
docs = false

# install cargo as well as rust
extended = true

[install]
prefix = "/opt/rustc-1.58.1"
docdir = "share/doc/rustc-1.58.1"

[rust]
channel = "stable"
rpath = false

# BLFS does not install the FileCheck executable from llvm,
# so disable codegen tests
codegen-tests = false

[target.x86_64-unknown-linux-gnu]
# NB the output of llvm-config (i.e. help options) may be
# dumped to the screen when config.toml is parsed.
llvm-config = "/usr/bin/llvm-config"

[target.i686-unknown-linux-gnu]
# NB the output of llvm-config (i.e. help options) may be
# dumped to the screen when config.toml is parsed.
llvm-config = "/usr/bin/llvm-config"


EOF

}

build () {
    export RUSTFLAGS="$RUSTFLAGS -C link-args=-lffi" &&
    python3 ./x.py build --exclude src/tools/miri

}

package () {
    export LIBSSH2_SYS_USE_PKG_CONFIG=1 &&
    DESTDIR=${PWD}/install python3 ./x.py install &&
    unset LIBSSH2_SYS_USE_PKG_CONFIG

    chown -R root:root install &&
    cp -a install/* $PKG_DEST

    mkdir -pv $PKG_DEST/etc/profile.d/
    cat > $PKG_DEST/etc/profile.d/rustc.sh << "EOF"
# Begin /etc/profile.d/rustc.sh

pathprepend /opt/rustc/bin           PATH

# End /etc/profile.d/rustc.sh
EOF
}

postinstall () {
cat >> /etc/ld.so.conf << EOF
# Begin rustc addition

/opt/rustc/lib

# End rustc addition
EOF

ldconfig
}