227 lines
6.6 KiB
Bash
Executable file
227 lines
6.6 KiB
Bash
Executable file
#!/bin/bash
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#
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# Singe 3
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# Copyright (C) 2006-2026 Scott Duensing <scott@kangaroopunch.com>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public Licens
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# as published by the Free Software Foundation; either version 3
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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#
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# Builds Singe and every vendored library for one platform, or all of them. The work is done
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# by the CMake superbuild (cmake/Superbuild.cmake, one preset per platform in
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# CMakePresets.json); this script installs the host packages and calls it:
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#
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# ./build-all.sh every supported platform
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# ./build-all.sh linux x86_64 one platform
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#
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# Anything cmake --build accepts can follow the platform, so a single library can be redone:
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#
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# ./build-all.sh linux x86_64 --target rebuild-ffmpeg
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G_BUILDDIR=.builddir
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G_INSTALL="$(dirname "$0")/INSTALL"
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# The one copy of the host package list. Everything else that names these packages derives from it.
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# Grouped by what wants them, because the SDL3 half is long and a bare list gives no clue why a
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# package is here: SDL3 compiles a backend whenever it finds the headers, so a package missing from
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# this list does not fail the build, it quietly drops a backend from the binary.
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G_HOSTPACKAGES=(
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# Toolchain
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build-essential
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cmake
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git-lfs
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pkg-config
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perl
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nasm
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llvm
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autoconf
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automake
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libtool
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# Content the build generates: embedded images, the menu video, the LuaSec table, the manual
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imagemagick
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ffmpeg
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lua5.4
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asciidoctor
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ruby-asciidoctor-pdf
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# Video decode and display
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libva-dev
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libvdpau-dev
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libdrm-dev
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libgl-dev
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libegl-dev
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libgles-dev
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libgbm-dev
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# SDL3 audio backends
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libasound2-dev
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libpulse-dev
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libpipewire-0.3-dev
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libjack-jackd2-dev
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libsndio-dev
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# SDL3 device hotplug, desktop integration and input methods
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libudev-dev
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libdbus-1-dev
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libibus-1.0-dev
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libxkbcommon-dev
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# SDL3 X11 video backend and the extensions it uses
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libx11-dev
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libxext-dev
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libxfixes-dev
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libxi-dev
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libxcursor-dev
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libxrandr-dev
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libxss-dev
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libxtst-dev
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# SDL3 Wayland video backend
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libwayland-dev
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wayland-protocols
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libdecor-0-dev
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)
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G_INSTALLLEAD="Host packages (what build-all.sh installs):"
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G_INSTALLWIDTH=72
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function buildAll() {
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local OS=$1
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local ARCH=$2
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shift 2
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# Every platform builds with the zig the build fetches itself; the Pi preset also fetches its
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# platform packages and macOS needs the Apple SDK tarball (see INSTALL).
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# "macos universal" builds both macOS presets and joins them with llvm-lipo.
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if [[ "${OS}" == "macos" && "${ARCH}" == "universal" ]]; then
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buildAll macos aarch64 "$@"
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buildAll macos x86_64 "$@"
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cmake -P cmake/zig/macosUniversal.cmake
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return
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fi
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cmake --preset ${OS}-${ARCH}
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cmake --build --preset ${OS}-${ARCH} "$@"
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}
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# assets/ holds the artwork, the font and the menu video in Git LFS. A clone made without git-lfs
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# leaves pointer stubs -- a hundred and thirty bytes of text where a video should be -- and the
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# resource generators embed them without complaining, so the failure only shows up at run time as a
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# menu with no background. One sentinel is enough to tell the two apart.
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function checkoutHydrated() {
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local SENTINEL="$(dirname "$0")/assets/180503_01_PurpleGrid.mp4"
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# A sentinel that is not there at all is not a hydrated checkout either, and saying so beats
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# passing quietly because the path was wrong.
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[[ -f "${SENTINEL}" ]] || return 1
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! head -c 64 "${SENTINEL}" | grep -q "git-lfs.github.com/spec"
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}
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# The package list as INSTALL wants to read it: one sentence, wrapped, ending in a full stop.
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function installParagraph() {
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local LINE="${G_INSTALLLEAD}"
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local SEP=" "
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local WORD
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for WORD in "${G_HOSTPACKAGES[@]}"; do
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if (( ${#LINE} + ${#SEP} + ${#WORD} > G_INSTALLWIDTH )); then
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printf '%s\n' "${LINE}"
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LINE="${WORD}"
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else
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LINE="${LINE}${SEP}${WORD}"
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fi
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SEP=" "
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done
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printf '%s.\n' "${LINE}"
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}
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# What INSTALL says today: from the lead line to the first line that ends the sentence.
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function installCurrent() {
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awk -v lead="${G_INSTALLLEAD}" '
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index($0, lead) == 1 { found = 1 }
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found { print; if (/\.$/) exit }
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' "${G_INSTALL}"
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}
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function installMatches() {
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# A checkout without INSTALL is not worth nagging about; there is nothing to disagree with.
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[[ ! -f "${G_INSTALL}" ]] || [[ "$(installParagraph)" == "$(installCurrent)" ]]
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}
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# Writes the paragraph back into INSTALL, replacing whatever sentence is there now.
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function installSync() {
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local TEMP
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TEMP=$(mktemp)
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awk -v lead="${G_INSTALLLEAD}" -v replacement="$(installParagraph)" '
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index($0, lead) == 1 && !done {
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print replacement
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skip = 1
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}
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skip { if (/\.$/) { skip = 0; done = 1 } next }
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{ print }
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' "${G_INSTALL}" > "${TEMP}"
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mv "${TEMP}" "${G_INSTALL}"
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}
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# -e = stop script on errors
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# -u = stop script on undefined variable
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# -o pipefail = stop pipeline if any step fails
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set -euo pipefail
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case "${1:-}" in
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--packages)
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printf '%s\n' "${G_HOSTPACKAGES[@]}"
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exit 0
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;;
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--sync-install)
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installSync
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echo "INSTALL rewritten from build-all.sh."
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exit 0
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;;
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esac
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mkdir -p ${G_BUILDDIR}
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# Host packages the build needs on a Debian based system. INSTALL prints the same list for a
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# reader who has not run anything yet, so it is written from this one: --sync-install rewrites
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# that paragraph and every build checks it, which is why there is no second list to keep in step.
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if ! installMatches; then
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echo "warning: INSTALL's host package list no longer matches this script."
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echo " Run ./build-all.sh --sync-install to write it from here."
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fi
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sudo apt-get install -y "${G_HOSTPACKAGES[@]}"
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if ! checkoutHydrated; then
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echo "error: assets/ holds git-lfs pointer files, not the real artwork, font and video."
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echo " The build would embed those stubs and produce a broken binary."
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echo " Fix the checkout with: git lfs install && git lfs pull"
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exit 1
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fi
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if [[ $# -ge 2 ]]; then
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buildAll "$@" 2>&1 | tee ${G_BUILDDIR}/$1-$2.log
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else
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buildAll linux x86_64 2>&1 | tee ${G_BUILDDIR}/linux-x86_64.log
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buildAll macos universal 2>&1 | tee ${G_BUILDDIR}/macos-universal.log
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buildAll linux aarch64 2>&1 | tee ${G_BUILDDIR}/linux-aarch64.log
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buildAll windows x86_64 2>&1 | tee ${G_BUILDDIR}/windows-x86_64.log
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fi
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