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Setting Up the Development Environment on macOS

Necessary Software

  • git
  • brew
  • Xcode
  • cmake (3.2.2 or later)
  • Qt 5.x (5.9.2 or later)
  • boost (1.55.0 or later)

Building on macOS

Download and install Xcode from Apple

When downloading Xcode, you should use the appropriate version for your OS version. You can refer to the Version Comparison Table on https://en.wikipedia.org/wiki/Xcode to find out which version you should use.

Apple store usually provides for the most recent macOS version. For older versions, you will need to go to the Apple Developer site.

After installing the application, you will need to start it in order to complete the installation.

Install Homebrew from https://brew.sh

Check site for any changes in installation instructions, but they will probably just be this:

  1. Open a Terminal window
  2. Execute the following statement:
$ /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"

Install required software using brew

In a Terminal window, execute the following statements:

$ brew install glew lz4 libjpeg libpng lzo pkg-config libusb cmake git-lfs libmypaint qt@5 boost jpeg-turbo opencv
$ git lfs install

NOTE: This will install the latest version of QT v5.x which may not be compatible with older OS versions.

If you cannot use the most recent version, download the online installer from https://www.qt.io/download and install the appropriate macOS version (min 5.9.2). If installing via this method, be sure to install the Qt Script (Deprecated) libraries.

Remove incompatible symbolic directory

Check to see if this symbolic glew directory exists. If so, remove it:

$ ls -l /usr/local/lib/cmake/glew
$ rm /usr/local/lib/cmake/glew

Set up OpenToonz repository

These steps will put the OpenToonz repository under /Users/yourlogin/Documents.

$ cd ~/Documents   #or where you want to store the repository#
$ git clone https://github.com/opentoonz/opentoonz
$ cd opentoonz
$ git lfs pull
$ cd thirdparty/lzo
$ cp -r 2.03/include/lzo driver
$ cd ../tiff-4.0.3
$ ./configure --disable-lzma && make

If you downloaded and installed boost from https://boost.org instead of homebrew, move the package under thirdparty/boost as follows:

$ cd thirdparty/boost
$ mv ~/Downloads/boost_1_72_0.tar.bz2 .   #or whatever the boost filename you downloaded is#
$ tar xvjf boost_1_72_0.tar.bz2

Configure environment and Build OpenToonz

  1. Create the build directory with the following:
$ cd ~/Documents/opentoonz/toonz
$ mkdir build
$ cd build
  1. Include libjpeg-turbo path to PKG_CONFIG_PATH
$ export PKG_CONFIG_PATH="/usr/local/opt/jpeg-turbo/lib/pkgconfig:$PKG_CONFIG_PATH"
  1. Set up build environment

To build from command line, do the following:

$ cmake ../sources -DQT_PATH='/usr/local/opt/qt@5/lib'  #replace QT path with your installed QT version#
$ make
  • If you downloaded the QT installer and installed to /Users/yourlogin/Qt instead of by using homebrew, your lib path may look something like this: ~/Qt/5.12.2/clang_64/lib or ~/Qt/5.12.2/clang_32/lib

To build using Xcode, do the following:

$ sudo xcode-select -s /Applications/Xcode.app/Contents/Developer
$ cmake -G Xcode ../sources -B. -DQT_PATH='/usr/local/opt/qt@5/lib' -DWITH_TRANSLATION=OFF   #replace QT path with your installed QT version#

  • Note that the option -DWITH_TRANSLATION=OFF is needed to avoid error when using XCode 12+ which does not allow to add the same source to multiple targets.

  • Open Xcode app and open project /Users/yourlogin/Documents/opentoonz/toonz/build/OpenToonz.xcodeproj

  • Change ALL_BUILD to OpenToonz

  • Start build with: Product -> Build

    • NOTE about rebuilding in Xcode: The initial build should succeed without any errors. There after, the build will succeed but the following 3 errors can be ignored:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/install_name_tool: for: /Users/yourlogin/Documents/opentoonz/toonz/build/toonz/Debug/OpenToonz.app/Contents/MacOS/OpenToonz (for architecture x86_64) option "-add_rpath @executable_path/." would duplicate path, file already has LC_RPATH for: @executable_path/.
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/install_name_tool: for: /Users/yourlogin/Documents/opentoonz/toonz/build/toonz/Debug/OpenToonz.app/Contents/MacOS/OpenToonz (for architecture x86_64) option "-add_rpath /usr/local/Cellar/qt/5.12.2/lib/" would duplicate path, file already has LC_RPATH for: /usr/local/Cellar/qt/5.12.2/lib/
Command /bin/sh emitted errors but did not return a nonzero exit code to indicate failure

Side note: If you want the option to build by command line and Xcode, create a separate build directory for each.

Create the stuff Directory

If you have installed OpenToonz on the machine already, you can skip this. Otherwise, you need to create the stuff folder with the following:

$ cd ~/Documents/opentoonz
$ sudo mkdir /Applications/OpenToonz
$ sudo cp -r stuff /Applications/OpenToonz/OpenToonz_stuff
$ sudo chmod -R 777 /Applications/OpenToonz

Running the build

  • If built using command line, run the following:
$ open ~/Documents/opentoonz/build/toonz/OpenToonz.app

  • If built using Xcode, do the following:

    • Open Scheme editor for OpenToonz: Product -> Scheme -> Edit Scheme

    • Uncheck: Run -> Options -> Document Versions

    • Run in Debug mode: Product -> Run

    • To open with command line or from Finder window, the application is found in /Users/yourlogin/Documents/opentoonz/toonz/build/Debug/OpenToonz.app