80 lines
2.5 KiB
Bash
80 lines
2.5 KiB
Bash
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#!/bin/sh
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set -eu
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# tool used to download. url as argument, output to stdout.
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DOWNLOAD_BIN=${DOWNLOAD_BIN:-ftp -Vo-}
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#DOWNLOAD_BIN=${DOWNLOAD_BIN:-curl -s}
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if [ $# -ne 2 ]; then
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cat >&2 <<EOF
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usage: ${0} url output-dir
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examples:
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- ${0} https://cdn.openbsd.org/pub/OpenBSD/6.9/amd64/ \${PWD}/6.9/amd64
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- ${0} https://cdn.openbsd.org/pub/OpenBSD/snapshots/i386/ \${PWD}/snapshots/i386
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EOF
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exit 1
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fi
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url="${1}"
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target_directory="${2}"
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if [ -r "${target_directory}/libc.conf" ] ; then
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echo "warn: ${target_directory}/libc.conf already exists" >&2
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exit 0
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fi
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echo "- Getting OpenBSD version" >&2
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target_version=`${DOWNLOAD_BIN} "${url}/SHA256" \
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| sed -ne 's,.*(base\([0-9]\)\([0-9]\)\.tgz).*,\1\2,p'`
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echo "- Downloading and extracting libc environment" >&2
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mkdir -p "${target_directory}"
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cat >"${target_directory}/CACHEDIR.TAG" <<EOF
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Signature: 8a477f597d28d172789f06886806bc55
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# This file is a cache directory tag created by ${0}.
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# For information about cache directory tags see https://bford.info/cachedir/
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EOF
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${DOWNLOAD_BIN} "${url}/base${target_version}.tgz" \
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| tar zxf - -C "${target_directory}" ./usr/include ./usr/lib
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${DOWNLOAD_BIN} "${url}/comp${target_version}.tgz" \
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| tar zxf - -C "${target_directory}" ./usr/include ./usr/lib
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echo "- Creating linux-like library links" >&2
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for lib in "${target_directory}"/usr/lib/lib*.so.*.* ; do
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ln -fs -- "${lib}" "${lib%.*.*}"
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done
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echo "- Creating ZIG_LIBC file" >&2
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cat >"${target_directory}/libc.conf" <<EOF
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# The directory that contains \`stdlib.h\`.
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# On POSIX-like systems, include directories be found with: \`cc -E -Wp,-v -xc /dev/null\`
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include_dir=${target_directory}/usr/include
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# The system-specific include directory. May be the same as \`include_dir\`.
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# On Windows it's the directory that includes \`vcruntime.h\`.
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# On POSIX it's the directory that includes \`sys/errno.h\`.
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sys_include_dir=${target_directory}/usr/include
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# The directory that contains \`crt1.o\` or \`crt2.o\`.
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# On POSIX, can be found with \`cc -print-file-name=crt1.o\`.
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# Not needed when targeting MacOS.
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crt_dir=${target_directory}/usr/lib
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# The directory that contains \`vcruntime.lib\`.
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# Only needed when targeting MSVC on Windows.
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msvc_lib_dir=
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# The directory that contains \`kernel32.lib\`.
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# Only needed when targeting MSVC on Windows.
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kernel32_lib_dir=
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# The directory that contains \`crtbeginS.o\` and \`crtendS.o\`
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# Only needed when targeting Haiku.
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gcc_dir=
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EOF
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echo "ZIG_LIBC=${target_directory}/libc.conf"
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