HowToBuild.md

Build LuaJIT

Windows

In Visual Studio Developer Command Prompt:

cd <Flexilite_location>
copy .\luajit_msvcbuild.bat .\lib\torch-luajit-rocks\luajit-2.1\src\msvcbuild.bat
cd .\lib\torch-luajit-rocks\luajit-2.1\src
setenv /release /x86
or
setenv /release /x64
msvcbuild static

macOS

Flexilite uses fork of LuaJIT from Torch and expects the latest Xcode and its tools to be installed to compile LuaJIT.

cd <Flexilite_location>
cd ./lib/torch-luajit-rocks
mkdir -p ./build
cd ./build
cmake .. -DCMAKE_INSTALL_PREFIX=/usr/local/etc/torch -DWITH_LUAJIT21=ON 
make

If you are getting error about math.h or other header files not found, try to run the following command before make:

export CPATH=`xcrun --show-sdk-path`/usr/include

To install Torch LuaJIT and LuaRocks run this command:

sudo make install
cd /usr/local/etc/torch/bin
sudo luarocks install penlight
sudo luarocks install busted

If installing Luarocks fails, try to clean up .luarocks folder:

sudo rm -rf ~/.cache/luarocks

Also, make sure that wget is installed:

brew install wget

Add Torch binaries to PATH :

sudo nano ~/.profile

Append the following line to the end of file:

export PATH=$PATH:/usr/local/etc/torch/bin 

Linux (Ubuntu, Debian)

sudo apt-get install libc6-dbg gdb valgrind

cd <Flexilite_location>
cd ./lib/torch-luajit-rocks
mkdir ./build
cd ./build
cmake .. -DCMAKE_INSTALL_PREFIX=/usr/torch -DWITH_LUAJIT21=ON 
make 

Install dependencies

cd ./lib/debugger-lua && luajit embed/debugger.c.lua

Test

busted is used to run Flexilite tests

Since by default busted expects Lua 5.3, and Flexilite is based on LuaJIT 2.1, it needs to run with the following setting:

busted --lua=<PATH_TO_LUAJIT> test.lua