Package: x2goclient
Version: X2Go Client v. 4.0.5.2 (Qt - 4.8.7)
Operating System: OS X El Capitan version 10.11.6
Tags: macos osx x2goclient xmodmap path

I have installed the latest x2goclient package on OS X El Capitan using
MacPorts.  I have also installed the MacPorts xorg-server and xmodmap
packages.

In my user account .profile script, MacPorts has added the following line
to set the PATH variable:
export PATH="/opt/local/bin:/opt/local/sbin:$PATH"

I have confirmed that xmodmap exists in one of these directories, in:
/opt/local/bin

When attempting to connect to any X2Go session, an error dialog appears
with the following message before the application crashes:

xmodmap failed to start.

This likely means the binary is not available.  The current search path is:
/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin

X2Go Client will now terminate.

It appears that /opt/local/bin is not being searched for xmodmap, despite
its presence in the PATH variable of my user account .profile script.  I
even attempted to reboot before starting x2goclient in case the PATH
variable needed to be re-read, but the error did not change.

This is preventing me from using the OS X x2goclient application.