How to fix libluajit in architecture x86_64?

Question

I'm trying to compile my project but see this problem

Problem: [Undefined symbols for architecture x86_64]

Image: http://i.imgur.com/iDOlwMX.png

I used: + Cocos2d-2.1rc0-x-2.1.2 + xCode 6.1 + libluajit newest

Build Setting:

Valid Architecture: arm64, armv7, armv7s

--> i dont know how to fix it, can you help me to solve this?

Thank you so much!

run file libluajit.a to see whether library contains required x86_64 slice. If not - you need to compile it for all needed archs — Andrei Shender
Hi @AndreiShender, Do you see i.imgur.com/iDOlwMX.png? I used Xcode to build .ipa file but can not add arm64 architectures — ducnguyen

La Reine J. La Reine J. · Accepted Answer · 2015-01-15T03:29:15

i met the same problem as you, solution as below:

1. download luajit v2.1

2. edit build_ios.sh like this:

#!/bin/sh
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
LIPO="xcrun -sdk iphoneos lipo"
STRIP="xcrun -sdk iphoneos strip"

SRCDIR=$DIR/src
DESTDIR=$DIR/prebuilt/ios
IXCODE=`xcode-select -print-path`
ISDK=$IXCODE/Platforms/iPhoneOS.platform/Developer
INFOPLIST_PATH=$IXCODE/Platforms/iPhoneOS.platform/version.plist
BUNDLE_ID=$(/usr/libexec/PlistBuddy -c "Print :CFBundleShortVersionString" "${INFOPLIST_PATH}")
ISDKVER=iPhoneOS${BUNDLE_ID}.sdk

if [ "${ISDKVER}" = "iPhoneOS8.0.sdk" ] || [ "${ISDKVER}" = "iPhoneOS8.1.sdk" ]; then
ISDKP=$IXCODE/usr/bin/
else
ISDKP=$ISDK/usr/bin/
fi

if [ ! -e $ISDKP/ar ]; then 
  sudo cp $ISDK/usr/bin/ar $ISDKP
fi

if [ ! -e $ISDKP/ranlib ]; then
  sudo cp $ISDK/usr/bin/ranlib $ISDKP
fi

if [ ! -e $ISDKP/strip ]; then
  sudo cp $ISDK/usr/bin/strip $ISDKP
fi

rm "$DESTDIR"/*.a
cd $SRCDIR


make clean
ISDKF="-arch armv7 -isysroot $ISDK/SDKs/$ISDKVER"
if [ ${ISDKVER} = "iPhoneOS8.0.sdk" ] || [ ${ISDKVER} = "iPhoneOS8.1.sdk" ]; then
make HOST_CC="gcc -m32 -arch i386" TARGET_FLAGS="$ISDKF" TARGET=arm TARGET_SYS=iOS
else
make HOST_CC="gcc -m32 -arch i386" CROSS=$ISDKP TARGET_FLAGS="$ISDKF" TARGET_SYS=iOS
fi
mv "$SRCDIR"/src/libluajit.a "$DESTDIR"/libluajit-armv7.a

make clean
ISDKF="-arch armv7s -isysroot $ISDK/SDKs/$ISDKVER"
if [ ${ISDKVER} = "iPhoneOS8.0.sdk" ] || [ ${ISDKVER} = "iPhoneOS8.1.sdk" ]; then
make HOST_CC="gcc -m32 -arch i386" TARGET_FLAGS="$ISDKF" TARGET=arm TARGET_SYS=iOS
else
make HOST_CC="gcc -m32 -arch i386" CROSS=$ISDKP TARGET_FLAGS="$ISDKF" TARGET_SYS=iOS
fi
mv "$SRCDIR"/src/libluajit.a "$DESTDIR"/libluajit-armv7s.a

make clean
make CC="gcc -m32 -arch i386" clean all
mv "$SRCDIR"/src/libluajit.a "$DESTDIR"/libluajit-i386.a

make clean
ISDKF="-arch arm64 -isysroot $ISDK/SDKs/$ISDKVER"
make HOST_CC="gcc " CROSS="$ISDKP" TARGET_FLAGS="$ISDKF" TARGET=arm64 TARGET_SYS=iOS
mv "$SRCDIR"/src/libluajit.a "$DESTDIR"/libluajit-arm64.a

make clean
make CC="gcc -m64 -arch x86_64" clean all
mv "$SRCDIR"/src/libluajit.a "$DESTDIR"/libluajit-x86_64.a

$LIPO -create "$DESTDIR"/libluajit-*.a -output "$DESTDIR"/libluajit.a
$STRIP -S "$DESTDIR"/libluajit.a
$LIPO -info "$DESTDIR"/libluajit.a

rm "$DESTDIR"/libluajit-*.a

make clean

3. run this script to create a new 'luajit.a'

4. Xcode project add new parameters ' -pagezero_size 10000 -image_base 100000000 ' in 'other linker flags'

How to fix libluajit in architecture x86_64?

1 Answers