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#!/usr/bin/env bash
# Copyright (c) 2018 Egor Tensin <egor@tensin.name>
# This file is part of the "linux-home" project.
# For details, see https://github.com/egor-tensin/linux-home.
# Distributed under the MIT License.
alias update-my-alternatives='update-alternatives --quiet --altdir ~/.local/etc/alternatives --admindir ~/.local/var/lib/alternatives'
setup_alternatives_cc() (
set -o errexit -o nounset -o pipefail
shopt -s inherit_errexit 2> /dev/null || true
gcc_cc="$( command -v gcc 2> /dev/null )" || return 0
gcc_cxx="$( command -v g++ 2> /dev/null )" || return 0
clang_cc="$( command -v clang 2> /dev/null )" || return 0
clang_cxx="$( command -v clang++ 2> /dev/null )" || return 0
mkdir -p -- ~/.local/bin
update-my-alternatives --remove-all cc || true
update-my-alternatives --install ~/.local/bin/cc cc "$clang_cc" 256 --slave ~/.local/bin/c++ c++ "$clang_cxx"
update-my-alternatives --install ~/.local/bin/cc cc "$gcc_cc" 512 --slave ~/.local/bin/c++ c++ "$gcc_cxx"
)
setup_alternatives() (
set -o errexit -o nounset -o pipefail
shopt -s inherit_errexit 2> /dev/null || true
command -v update-alternatives > /dev/null 2>&1 || return 0
mkdir -p -- ~/.local/etc/alternatives ~/.local/var/lib/alternatives
setup_alternatives_cc
)
setup_alternatives
alt_gcc() (
set -o errexit -o nounset -o pipefail
shopt -s inherit_errexit 2> /dev/null || true
gcc_cc="$( command -v gcc 2> /dev/null )"
update-my-alternatives --set cc "$gcc_cc"
)
alt_clang() (
set -o errexit -o nounset -o pipefail
shopt -s inherit_errexit 2> /dev/null || true
clang_cc="$( command -v clang 2> /dev/null )"
update-my-alternatives --set cc "$clang_cc"
)
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