InstallingLuainMac

Lua is distributed in source form. You
need to build it before using it. Building Lua should be straightforward because
Lua is implemented in pure ANSI C and compiles unmodified in all known platforms
that have an ANSI C compiler. Lua also compiles unmodified as C++. The
instructions given below for building Lua are for Unix-like platforms. See also
instructions
for other systems and customization
options.

If you don‘t have the time or the inclination to compile Lua yourself, get a
binary from LuaBinaries. Try
also Lua for Windows, an
easy-to-use distribution of Lua that includes many useful libraries.

Building Lua

In most Unix-like platforms, simply do "make" with a suitable
target. Here are the details.

1. Open a terminal window and move to the top-level directory, which is named
   lua-5.2.3. The Makefile there controls both the build process and the
   installation process.

    



2. Do "make" and see if your platform is listed. The platforms
   currently supported are:

    

   aix ansi bsd freebsd generic linux macosx mingw posix
   solaris

   If your platform is listed, just do "make xxx", where xxx is
   your platform name.

   If your platform is not listed, try the closest one or posix, generic,
   ansi, in this order.

    



3. The compilation takes only a few moments and produces three files in the
   src directory: lua (the interpreter), luac (the compiler), and
   liblua.a (the library).

    



4. To check that Lua has been built correctly, do "make test"
   after building Lua. This will run the interpreter and print its version
   string.

If you‘re running Linux and get compilation errors, make sure you have
installed the readline development package. If you get link errors
after that, then try "make linux MYLIBS=-ltermcap".

Installing Lua

Once you have built Lua, you may want to install it in an official place in
your system. In this case, do "make install". The official place and
the way to install files are defined in the Makefile. You‘ll probably need the
right permissions to install files.

To build and install Lua in one step, do "make xxx install", where
xxx is your platform name.

To install Lua locally, do "make local". This will create a
directory install with subdirectories bin, include,
lib, man, and install Lua as listed below. To install Lua
locally, but in some other directory, do "make install
INSTALL_TOP=xxx", where xxx is your chosen directory.

bin:

lua luac

include:

lua.h luaconf.h lualib.h lauxlib.h lua.hpp

lib:

liblua.a

man/man1:

lua.1 luac.1

These are the only directories you need for development. If you only want to
run Lua programs, you only need the files in bin and man. The files in include
and lib are needed for embedding Lua in C or C++ programs.

Customization

Three kinds of things can be customized by editing a file:

• Where and how to install Lua — edit Makefile.


• How to build Lua — edit src/Makefile.


• Lua features — edit src/luaconf.h.

You don‘t actually need to edit the Makefiles because you may set the
relevant variables in the command line when invoking make. Nevertheless, it‘s
probably best to edit and save the Makefiles to record the changes you need.

On the other hand, if you need to customize some Lua features, you‘ll need to
edit src/luaconf.h before building and installing Lua. The edited file
will be the one installed, and it will be used by any Lua clients that you
build, to ensure consistency. Further customization is available to experts by
editing the Lua sources.

We strongly recommend that you enable dynamic loading in
src/luaconf.h. This is done automatically for all platforms listed
above that have this feature and also for Windows.

Building Lua on other systems

If you‘re not using the usual Unix tools, then the instructions for building
Lua depend on the compiler you use. You‘ll need to create projects (or whatever
your compiler uses) for building the library, the interpreter, and the compiler,
as follows:

library:

lapi.c lcode.c lctype.c ldebug.c ldo.c ldump.c lfunc.c lgc.c llex.c lmem.c
lobject.c lopcodes.c lparser.c lstate.c lstring.c ltable.c ltm.c lundump.c
lvm.c lzio.c lauxlib.c lbaselib.c lbitlib.c lcorolib.c ldblib.c liolib.c
lmathlib.c loslib.c lstrlib.c ltablib.c loadlib.c linit.c

interpreter:

library, lua.c

compiler:

library, luac.c

To use Lua as a library in your own programs you‘ll need to know how to
create and use libraries with your compiler. Moreover, to dynamically load C
libraries for Lua you‘ll need to know how to create dynamic libraries and you‘ll
need to make sure that the Lua API functions are accessible to those dynamic
libraries — but don‘t link the Lua library into each dynamic library.
For Unix, we recommend that the Lua library be linked statically into the host
program and its symbols exported for dynamic linking; src/Makefile does
this for the Lua interpreter. For Windows, we recommend that the Lua library be
a DLL.

As mentioned above, you may edit src/luaconf.h to customize some
features before building Lua.