I needed to get the authbind utility, available from:

http://www.chiark.greenend.org.uk/ucgi/~ian/git/authbind.git/

up and running on a Mac OSX box (specifically, Mac OSX 10.7 Lion). I made a few changes to the source code; most of the changes are in the Makefile.

To install this authbind on your Mac OSX, simply do:

$ cd MacOSX-authbind
$ make
$ sudo make install

Then set up the authbind config files as one would normally do.

Note: if you're using a Mac with Apple's M-series chips, before running make, edit the Makefile by following the instructions here

Changes

Here's the list of changes I made, and why:

• PRELOAD_VAR defined to DYLD_INSERT_LIBRARIES, rather than to LD_PRELOAD
• Added setting of DYLD_FORCE_FLAT_NAMESPACE environment variable, as per dyld(1) man page recommendation.
• Added more logging to stderr of errors found in libauthbind, and the helper.

The original files are marked as .orig; this distribution also contains a patches/macosx/ directory with the diffs, for easier inspection. Note that I did not make the Makefile intelligent enough to Do The Right Thing(tm) for Linux platforms; it is currently specific to Mac OSX.