#!/bin/bash -e

. sdk.sh
export MACOSX_DEPLOYMENT_TARGET=10.13

LUAJIT_VERSION=2.1

if [ ! -d LuaJIT-src ]; then
	wget https://github.com/LuaJIT/LuaJIT/archive/v$LUAJIT_VERSION.zip
	unzip v$LUAJIT_VERSION.zip
	mv LuaJIT-$LUAJIT_VERSION LuaJIT-src
	rm v$LUAJIT_VERSION.zip
fi

cd LuaJIT-src

# 32-bit
make amalg -j \
	DEFAULT_CC=clang HOST_CC="clang -m32 -arch i386" CROSS="$(dirname $IOS_CC)/" TARGET_SYS=iOS \
	TARGET_FLAGS="-arch armv7 $IOS_FLAGS_NOARCH" \
	TARGET_CFLAGS+="-Wno-implicit-function-declaration -fno-omit-frame-pointer"
mv src/libluajit.a templib_32.a
make clean

# 64-bit
make amalg -j \
	DEFAULT_CC=clang HOST_CC=clang CROSS="$(dirname $IOS_CC)/" TARGET_SYS=iOS \
	TARGET_FLAGS="-arch arm64 $IOS_FLAGS_NOARCH" \
	TARGET_CFLAGS+="-Wno-implicit-function-declaration"
mv src/libluajit.a templib_64.a
make clean

# 64-bit [arm64e]
make amalg -j \
	DEFAULT_CC=clang HOST_CC=clang CROSS="$(dirname $IOS_CC)/" TARGET_SYS=iOS \
	TARGET_FLAGS="-arch arm64e $IOS_FLAGS_NOARCH" \
	TARGET_CFLAGS+="-Wno-implicit-function-declaration"
mv src/libluajit.a templib_64e.a
make clean

# repack into one .a
lipo -create templib_*.a -output libluajit.a
rm templib_*.a

mkdir -p ../luajit/{lib,include}
cp -v src/*.h ../luajit/include
cp -v libluajit.a ../luajit/lib

echo "LuaJIT build successful"