A script to automatically build an open-source toolchain for PSP homebrew development.
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davidgfnet and artart78 Fixing double precision in the gcc 4.9 patch
Turns out gcc 4.9 assumes that, by default, double precision is
hardware implemented. Yet the MIPS R3000 allegrex does only have
single precision support.

This patch has been taken from issue #85:

Thanks for the fixes to @csnover and @wjp. This should fix #85 #65
Latest commit a435ee0 Nov 24, 2017


What does this do?

This program will automatically build and install a compiler and other tools used in the creation of homebrew software for the Sony Playstation Portable handheld videogame system.

How do I use it?

  1. Set up your environment by installing the following software:

     autoconf, automake, bison, flex, gcc, g++/gcc-c++, libusb-dev, make, ncurses, patch, readline, subversion, texinfo, wget, mpc, gmp, libelf, mpfr, git
  2. Set the PSPDEV and PATH environmental variables:

     export PSPDEV=/usr/local/pspdev
     export PATH=$PATH:$PSPDEV/bin

    The PSPDEV variable is the directory the toolchain will be installed to, change this if you wish. If possible the toolchain script will automatically add these variables to your systems login scripts, otherwise you will need to manually add these variables yourself.

  3. Run the toolchain script:


NOTE: If you have issues with compiling try increasing the amount of memory available to your system by creating a swapfile.

dd if=/dev/zero of=/swapfile bs=1M count=2048
chmod 600 /swapfile
mkswap /swapfile
swapon /swapfile

After you are done use swapoff -a disable the swapfile. Finally you can remove it with rm.


  1. Install the required packages by running.

     sudo apt-get install g++ build-essential autoconf automake cmake doxygen bison flex libncurses5-dev libsdl1.2-dev libreadline-dev libusb-dev texinfo libgmp3-dev libmpfr-dev libelf-dev libmpc-dev libfreetype6-dev zlib1g-dev libtool libtool-bin subversion git tcl unzip wget
  2. Build and install the toolchain and SDK.

     sudo ./toolchain-sudo.sh

NOTE: If you do not wish for the toolchain to be installed in /usr/local/pspdev then edit toolchain-sudo.sh and change the INSTALLDIR variable.


  1. Install port or brew.

  2. Run prepare-mac-os.sh. This will auto-install all the libraries you will need before building.

     sudo ./prepare-mac-os.sh
  3. Build and install the toolchain and SDK.

     sudo ./toolchain-sudo.sh

Where do I go from here?

Visit the following sites to learn more:

http://www.ps2dev.org http://forums.ps2dev.org