ref: d1ed4fbdedb5afef82e0711c0ee686a4dc83044c
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# RGBDS
RGBDS (Rednex Game Boy Development System) is a free assembler/linker package
for the Game Boy and Game Boy Color. It consists of:
- rgbasm (assembler)
- rgblink (linker)
- rgbfix (checksum/header fixer)
- rgbgfx (PNG‐to‐Game Boy graphics converter)
This is a fork of the original RGBDS which aims to make the programs more like
other UNIX tools.
## Installing RGBDS (UNIX)
RGBDS requires libpng and pkg-config to be installed.
On Mac OS X, install them with [Homebrew](http://brew.sh/). On other Unixes,
use the built-in package manager.
You can test if they're installed by running `pkg-config --cflags libpng`:
if the output is a path, then you're good, and if it outputs an error then
you need to install them via a package manager.
To build the programs on a UNIX or UNIX-like system, just run in your terminal:
```sh
make
```
Then to install the compiled programs and manual pages, run (with appropriate
privileges):
```sh
make install
```
After installation, you can read the manuals with the man(1) command. E.g.,
```sh
man 1 rgbasm
```
Note: the variables described below can affect installation behavior when given
on the make command line. For example, to install rgbds in your home directory
instead of systemwide, run the following:
```sh
mkdir -p $HOME/{bin,man/man1,man/man7}
make install PREFIX=$HOME
```
`PREFIX`: Location where RGBDS will be installed. Defaults to `/usr/local`.
`BINPREFIX`: Location where the RGBDS programs will be installed. Defaults
to `${PREFIX}/bin`.
`MANPREFIX`: Location where the RGBDS man pages will be installed. Defaults
to `${PREFIX}/man`.
`Q`: Whether to quiet the build or not. To make the build more verbose, clear
this variable. Defaults to `@`.
`STRIP`: Whether to strip the installed binaries of debug symbols or not.
Defaults to `-s`.
`BINMODE`: Permissions of the installed binaries. Defaults to `555`.
`MANMODE`: Permissions of the installed manpages. Defaults to `444`.
## Installing RGBDS (Windows)
Windows builds are available here: https://github.com/rednex/rgbds/releases
Copy the .exe files to C:\Windows\ or similar.