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Add premake support for ARM-based macOS #1958

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Merged
tritao merged 1 commit into from
Feb 8, 2026
+27 −9
Merged

Add premake support for ARM-based macOS #1958

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36 changes: 27 additions & 9 deletions build/build.sh
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Original file line number Diff line number Diff line change
@@ -1,7 +1,6 @@
#!/usr/bin/env bash
set -e
builddir=$(cd "$(dirname "$0")"; pwd)
platform=x64
vs=vs2022
configuration=DebugOpt
build_only=false
Expand All @@ -18,8 +17,17 @@ oshost=""
os=""
test=

if [[ $(uname -m) != *"64"* ]]; then
_machine=$(uname -m)

if [[ $_machine == "arm64" ]]; then
platform="arm64"
elif [[ $_machine == "x86_64" ]]; then
platform="x64"
elif [[ $_machine == "i686" ]]; then
platform=x86
else
echo "Unsupported machine type: ${_machine}"
exit 1

@perlun perlun Feb 8, 2026

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Changed the logic here a bit to be more explicit. The x86 branch might need to support some more types than i686 but can be added if/when needed.

fi

build()
Expand Down Expand Up @@ -103,7 +111,7 @@ test()
}

clean()
{
{
rm -rf "$objdir"
rm -rf "$gendir"
rm -rf "$bindir"
Expand All @@ -125,14 +133,22 @@ download_premake()

if ! [ -f "$premake_path" ]; then
echo "Downloading and unpacking Premake..."
premake_version=5.0.0-beta2
unpack_filename=$premake_filename
if [ $oshost = "macosx" ]; then
# macOS needs a newer premake version which has arm64 (Apple Silicon) support
premake_version=5.0.0-beta8
else
# Other systems need an older premake that still works on Ubuntu 22.04
premake_version=5.0.0-beta2
unpack_filename=./${premake_filename}
fi
premake_archive=premake-$premake_version-$oshost.$premake_archive_ext

@perlun perlun Feb 8, 2026

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An important detail: premake 5.0.0-beta8 switches to using arm64 as the default: https://github.com/premake/premake-core/releases/tag/v5.0.0-beta8. This means that this will now "work", but will break things for Intel-based Macs. If we want to support them, the generated file name should be premake-5.0.0-beta8-macosx-x64.tar.gz for such platforms.

As far as I'm concerned, we could ignore this and focus on supporting ARM-based macOS for now, but if this is considered an issue, we should resolve this before merge.

premake_url=https://github.com/premake/premake-core/releases/download/v$premake_version/$premake_archive
curl -L -O $premake_url
if [ $oshost = "windows" ]; then
unzip $premake_archive $premake_filename -d "$premake_dir"
else
tar -xf $premake_archive -C "$premake_dir" ./$premake_filename
tar -xf $premake_archive -C "$premake_dir" $unpack_filename
fi
chmod +x "$premake_path"
rm $premake_archive
Expand Down Expand Up @@ -161,7 +177,9 @@ package_llvm()

detect_os()
{
case "$(uname -s)" in
local _system=$(uname -s)

case "${_system}" in
Darwin)
oshost=macosx
;;
Expand All @@ -172,7 +190,7 @@ detect_os()
oshost=windows
;;
*)
echo "Unsupported platform"
echo "Unsupported platform: ${_system}"
exit 1
;;
esac
Expand Down Expand Up @@ -202,7 +220,7 @@ while [[ $# > 0 ]]; do
-configuration)
configuration=$2
shift
;;
;;
-platform)
platform=$2
shift
Expand Down Expand Up @@ -240,7 +258,7 @@ case "$cmd" in
;;
generate_config)
generate_config
;;
;;
prepack)
prepack
;;
Expand Down