Revision as of 03:10, 16 September 2011 by Marco Piccioni (Talk | contribs)

This page gives you an overview about how to get EiffelStudio running on your Mac (Leopard, Snow Leopard or Lion).


  • You will need to install XCode from your OSX-Installation disk, or by downloading it from Apple's developer web site. Make sure that you install the development tools with Xcode. You don't need to install X11 if you are using OSX >=10.5.


Using MacPorts

The following should work on Mac OS X 10.4 and later.

MacPorts is a tool that allows you to use many Unix applications on the Mac. We have created a package in the MacPorts repository that allows you to to install Eiffel Studio with all dependencies in a convenient way. First, install MacPorts as described here.

Now simply type:

sudo port install eiffelstudio68

and you're ready to go (after a few hours compiling that is :)). Compiling on a 2.4 GHz Intel Mac takes about an hour.

Older development packages are available under the name eiffelstudio65, etc. (All packages can be installed simultaneously because they are in different directories.)

When a new release of the same version EiffelStudio becomes available, you can upgrade like so:

sudo port selfupdate
sudo port uprade outdated
sudo port upgrade eiffelstudio68

or, if you just want to upgrade EiffelStudio:

sudo port upgrade eiffelstudio68

Note: EiffelStudio68 lists gtk2 as a dependency, and gtk2 version 2_24_5_0+x11 breaks EiffelStudio68. A fix is to install gtk2 2_24_4_0+x11 (the previous minor version) or deactivate the former and activate the latter if you already have both installed.

sudo port deactivate gtk2 @2_24_5_0+x11
sudo port activate gtk2 @2_24_4_0+x11

Using binary packages

Warning.png Warning: This method does not work at the moment. Please install EiffelStudio using MacPorts.
See Discussion for more information.

  1. Install the latest version of XQuartz: download
  2. Install the EiffelStudio 6.4 Mac package: download

This installer was created using MacPorts as well as using the mpkg command. For more information take a look at the MacPorts Guide

Starting EiffelStudio

Simply navigate to /Applications/MacPorts/Eiffel<nn> and double click the EiffelStudio icon.

Alternatively, you can also start EiffelStudio from the command line by entering the command 'estudio' or use the command-line eiffel compiler 'ec'.


I get a crash with a Permission denied: Operating system error, how do I fix it?

Delete the .ec directory in your home directory.

I get an error with precompiles, why is that ?

Precompiles did not work on the Mac before EiffelStudio 6.4 due to a limitation of the linker. To work around this issue you have to disable the precompiles with those versions or upgrade to a recent version of EiffelStudio.

Information.png Note: When you create a project, EiffelStudio will ask if you want to perform precompiles – say no. Then disable the precompiles for this project through the Project>Project menu. In the 'Groups>Precompile' section, remove all precompiles (eg., base_pre). Select the 'base_pre' precompile and click the red cross delete tool at the top of the window.

Information.png Note: Precompiling the Eiffel libraries after installing the Port is possible, there are security policies to take into account. The Port installs EiffelStudio under the system's /Application/MacPorts directory and not the user ~/Application/MacPorts. Due of this, EiffelStudio must be run as a super user and the precompiles build using the Tools > Precompile Wizard option. Alternatively, alter the base installation path when requesting to install the Port.

How can I make EiffelStudio on the Mac look nicer?

  • Use the gtk clearlooks theme from MacPorts (packages gtk2-clearlooks and gtk-theme-switch, then run 'switch2')

Typing ec or estudio on the command line doesn't work

To run the ec compiler from your shell, set up variables similar to these (e.g. in ~/.profile):

# Setting variables for EiffelStudio.
export ISE_EIFFEL=/Applications/MacPorts/Eiffel66
export ISE_PLATFORM=macosx-ppc (or macosx-x86)
export ES_PATH=$ISE_EIFFEL/studio/spec/$ISE_PLATFORM/bin


  • Pick and Drop works with Apple-key + mouse click.
  • To set up the correct (default) browsers use "open" as your command-line browser in Tools>Preferences...
  • The F10 and F11 debugging shortcuts conflict with the standard Exposé keys. Here are some workarounds:
    • Use the toolbar instead.
    • Reassign these shortcuts in EiffelStudio (Tools>Preferences).
    • Reassign the Exposé keys in System Preferences.
  • The version of X11 installed with Mac OS X Leopard 10.5.0 and 10.5.1 does not work. The 10.5.2 and later updates are probably ok, however, but if you're having problems have a look at http://trac.macosforge.org/projects/xquartz. For more details, see http://www.eiffelroom.com/blog/paulbates/a_little_help_for_mac_users which pre-dates the release of 10.5.2.