README.MD
1 # lz4 for DOS/djgpp
2 This file details on how to compile lz4.exe, and liblz4.a for use on DOS/djgpp using
3 Andrew Wu's build-djgpp cross compilers ([GH][0], [Binaries][1]) on OSX, Linux.
4
5 ## Setup
6 * Download a djgpp tarball [binaries][1] for your platform.
7 * Extract and install it (`tar jxvf djgpp-linux64-gcc492.tar.bz2`). Note the path. We'll assume `/home/user/djgpp`.
8 * Add the `bin` folder to your `PATH`. In bash, do `export PATH=/home/user/djgpp/bin:$PATH`.
9 * The `Makefile` in `contrib/djgpp/` sets up `CC`, `AR`, `LD` for you. So, `CC=i586-pc-msdosdjgpp-gcc`, `AR=i586-pc-msdosdjgpp-ar`, `LD=i586-pc-msdosdjgpp-gcc`.
10
11 ## Building LZ4 for DOS
12 In the base dir of lz4 and with `contrib/djgpp/Makefile`, try:
13 Try:
14 * `make -f contrib/djgpp/Makefile`
15 * `make -f contrib/djgpp/Makefile liblz4.a`
16 * `make -f contrib/djgpp/Makefile lz4.exe`
17 * `make -f contrib/djgpp/Makefile DESTDIR=/home/user/dos install`, however it doesn't make much sense on a \*nix.
18 * You can also do `make -f contrib/djgpp/Makefile uninstall`
19
20 [0]: https://github.com/andrewwutw/build-djgpp
21 [1]: https://github.com/andrewwutw/build-djgpp/releases
22