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# Compiling
## Requirements
Unfortunately, the requirements for building Textadept are not quite as minimal
as running it.
### Linux and BSD
Linux systems need the GTK+ development libraries. Your package manager should
allow you to install them. For Debian-based distributions like Ubuntu, the
package is typically called `libgtk2.0-dev`. Otherwise, compile and install GTK
from the [GTK+ website][]. Additionally you will need the [GNU C compiler][]
(`gcc`) and [GNU Make][] (`make`). Both should be available for your Linux
distribution through its package manager. For example, Ubuntu includes these
tools in the `build-essential` package.
If you would like to compile the terminal version of Textadept, you will need
the ncurses and CDK development libraries. Similarly, they should be available
from your package manager. For Debian-based distributions like Ubuntu, the
packages are typically called `libncurses5-dev` and `libcdk5-dev`. Otherwise,
compile and install them from their [respective][] [websites][].
[GTK+ website]: http://www.gtk.org/download/linux.html
[GNU C compiler]: http://gcc.gnu.org
[GNU Make]: http://www.gnu.org/software/make/
[respective]: http://invisible-island.net/ncurses/#download_ncurses
[websites]: http://invisible-island.net/cdk/#download
### Windows
Compiling Textadept on Windows is no longer supported. If you wish to do so
however, you need a C compiler that supports the C99 standard (Microsoft's does
not) and the [GTK+ for Windows bundle][] (2.24 is recommended).
The preferred way to compile for Windows is cross-compiling from Linux. To do
so, in addition to the GTK bundle mentioned above, you need [MinGW][] with the
Windows header files. They should be available from your package manager.
[GTK+ for Windows bundle]: http://www.gtk.org/download/win32.html
[MinGW]: http://mingw.org
### Mac OSX
[XCode][] is needed for Mac OSX as well as [jhbuild][]. After building
`meta-gtk-osx-bootstrap` and `meta-gtk-osx-core`, you need to build
`meta-gtk-osx-themes`. Note that the entire compiling process can easily take
30 minutes or more and ultimately consume nearly 1GB of disk space.
[XCode]: http://developer.apple.com/TOOLS/xcode/
[jhbuild]: http://sourceforge.net/apps/trac/gtk-osx/wiki/Build
## Compiling
Make sure you downloaded the `textadept_x.x.src.zip` (regardless of what
platform you are on) and not a platform-specific binary package.
### Linux and BSD
For Linux systems, simply run `make` in the `src/` directory. The `textadept`
and `textadeptjit` executables are created in the root directory. Make a symlink
from them to `/usr/bin/` or elsewhere in your `PATH`.
### Cross Compiling for Windows
When cross-compiling from within Linux, first unzip the GTK+ for Windows bundle
into a new `src/win32gtk` directory. Then, depending on your MingW installation,
either run `make win32`, modify the `CROSS` variable in the `win32` block of
`src/Makefile` and run `make win32`, or run `make CROSS=i486-mingw32- win32` to
build `../textadept.exe` and `../textadeptjit.exe`.
Please note that a `lua51.dll` is produced for _only_ the `textadeptjit.exe`
because limitations on external Lua library loading do not allow statically
linking LuaJIT to Textadept.
### Mac OSX
After using `jhbuild`, GTK is in `~/gtk` so make a symlink from `~/gtk/inst` to
`src/gtkosx` in Textadept. Then run `make` to build `../textadept.osx` and
`../textadeptjit.osx`. At this point it is recommended to build a new
`Textadept.app` from an existing one. Download the most recent app and replace
`Contents/MacOS/textadept.osx`, `Contents/MacOS/textadeptjit.osx`, all `.dylib`
files in `Contents/Resources/lib`, and all `.so` files in
`Contents/Resources/lib/gtk-2.0/<version>/{engines,immodules,loaders}` with your
own versions in `src/gtkosx/lib`. If you wish, you may also replace the files
in `Contents/Resources/{etc,share}`, but these rarely change.
#### Problems
If the build fails because of a
`redefinition of 'struct Sci_TextRange'`
error, open `src/scintilla/include/Scintilla.h` and comment out the following
lines (put `//` at the start of the line):
#define CharacterRange Sci_CharacterRange
#define TextRange Sci_TextRange
#define TextToFind Sci_TextToFind
### Notes on LuaJIT
[LuaJIT][] is a Just-In-Time Compiler for Lua and can boost the speed of Lua
programs. I have noticed that syntax highlighting can be up to 2 times faster
with LuaJIT than with vanilla Lua. This difference is largely unnoticable on
modern computers and usually only discernable when initially loading large
files. Other than syntax highlighting, LuaJIT offers no real benefit
performance-wise to justify it being Textadept's default runtime. LuaJIT's
[ffi library][], however, appears to be useful for interfacing with external,
non-Lua, libraries.
[LuaJIT]: http://luajit.org
[ffi library]: http://luajit.org/ext_ffi.html
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