McIDAS User's Guide
Version 2019.1

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Installing McIDAS-X on Unix or macOS Workstations

If you are installing McIDAS-X on a workstation running the Windows 7 operating system, go to Installing McIDAS-X on Windows 7 Workstations.

The system administrator or person who installs McIDAS-X will use these installation instructions. The instructions follow the table below, which lists the Unix and macOS software versions compatible with McIDAS-X 2019.1.

McIDAS-X 2019.1 was tested - and is fully supported - on these versions only. In most cases, you should be able to install and run McIDAS-X 2019.1 on workstations running later editions in the same version series (e.g., if McIDAS-X is tested and supported on version 1.2.1, then versions 1.2.2, 1.2.3, etc. are also likely to work correctly). However, please keep in mind that McIDAS User Services is very limited in its ability to acquire and test versions other than those below and thus is limited in its ability to assist in troubleshooting problems that occur with other versions.

Vendor Operating System Fortran compiler C compiler X Server /
X Window System
Apple® macOS®
10.14.6 Intel
gfortran: 8.3 gcc: 8.3 XQuartz 2.7.11
10.13.6 Intel
gfortran: 7.3 gcc: 7.3 XQuartz 2.7.11
macOS Notes:
  1. In order to build and install McIDAS-X on macOS, you must install the Xcode Developer Tools and Command Line Tools on your workstation. Xcode is available via the App Store and from Command Line Tools are available at (developer login required).
  2. XQuartz is available for free at We recommend installing the latest available version.
  3. The gcc and gfortran compilers are available for free at These compilers must be reinstalled if Xcode is updated.
  4. On macOS 10.14 systems, after installing the compilers, you must install the Command Line Tools again, and then install the SDK headers
Red Hat Enterprise Linux®
7.7 Intel
gfortran : 4.8.5 gcc : 4.8.5 packaged with
Enterprise Linux 7.7
Enterprise Linux
6.10 Intel
gfortran : 4.4.7 gcc : 4.4.7 packaged with
Enterprise Linux 6.10
Linux Notes:
  1. We have encountered problems with the GUI when using the GNOME 3 desktop environment, which is the default on RHEL 7 systems. We recommend installing and using KDE instead. On RHEL 6 systems we recommend using earlier versions of GNOME. Using a different desktop environment on either system may result in the McIDAS-X GUI windows not displaying correctly or at all.
  2. Enterprise Linux does not install the compress utility by default. So you must install compress if you will be configuring your Enterprise Linux workstation as an ADDE remote server.


The McIDAS-X installation consists of seven tasks:

If you have questions about the installation, call the McIDAS Help Desk at (608) 262-2455, or send email to McIDAS User Services.

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