ARB on M1

Warning:
Under some circumstances ARB freezes when running under M1/Rosetta!
See ticket #844 for details.

We've been reported ARB has sucessfully been installed on M1 using the following steps:

1. Check the "Open using Rosetta" checkbox in Terminal Info.
2. Check the following in Terminal.

   $ uname -m
   x86_64
   

3. Install Homebrew in /usr/local.

   $ /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
   

4. Make a path.

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

5. Download ARB

   $ brew install arb-project/arb/arb@7
   (https://github.com/arb-project/homebrew-arb)
   

   For details and options see ​homebrew-arb.
6. Open ARB

   $ arb
   

Steps to build ARB on Mac OSX (Macports; probably out-dated)

These instruction are from 2015; for version using Macports.
Currently its recommended to brew your own arb using ​homebrew-arb.

• install Apple"s XCode (from app store or from ​https://developer.apple.com/downloads/index.action)
• install Apple's Command Line Developer Tools (from ​https://developer.apple.com/downloads/index.action)
• Run XCode at least once and accept the EULA (otherwise the command line tools will not run)
• Install macports ​http://www.macports.org
• run

  sudo port -v selfupdate
  

  (uses rsync, some firewalls may not like that)
• Install XQuartz from ​http://xquartz.macosforge.org/landing/
• restart your computer to use XQuartz as default X11 display
• restart to use XQuartz as default X11 display
• install following packages using macports

  sudo port install imake makedepend lynx openmotif gsed sablotron glw glew xfig gv xorg-libXaw gtime coreutils
  

• svn co http://vc.arb-home.de/readonly/trunk
• set ARBHOME
• set LD_LIBRARY_PATH to $ARBHOME/lib
• Add $ARBHOME/bin to PATH
• export PREFIX≤macports prefix> (usually /opt/local)
• Edit config.makefile to enable OSX and disable OpenGL (see arb_OS_X.txt in $ARBHOME for infos on how to get open gl working)
• compile and run!