johnson (2.0.0.pre3) is Failing
for Nate Bird (Mac OSX, 9 months ago)

Doesn't work on 1.9.2 with any version

johnson (1.9.2) is Failing
for andy (GNU/Linux, 11 months ago)

not working on Nov 16, 2010

johnson (2.0.0.pre3) is Failing
for James Thompson (Mac OSX, about 1 year ago)

Busted on 1.9.2p0

johnson (1.1.0) is Failing
for Brendan (Mac OSX, about 1 year ago)

Tried current version (failed)
Also tried 1.1.0 with Ruby 1.9.1-p378 (via rvm) and got:

jsprf.c: In function ‘BuildArgArray’:
jsprf.c:644: error: incompatible types in assignment
make[1]: *** [Darwin_DBG.OBJ/jsprf.o] Error 1
make: *** [all] Error 2

johnson (2.0.0.pre3) is Failing
for   (GNU/Linux, about 1 year ago)

...
ruby_land_proxy.cc:582: error: ‘ruby_errinfo’ was not declared in this scope
make: *** [ruby_land_proxy.o] Error 1

johnson (2.0.0.pre3) is Failing
for iain (Mac OSX, about 1 year ago)

As described in the mailinglist, Johnson needs a ruby header file which doesn't exist in Ruby 1.9 anymore. So both the current stable (1.2.0) and the beta (2.0.0.pre3) don't work.

http://groups.google.com/group/johnson-talk/browse_thread/thread/98340e48bb28b867/c8f1ab644f436e1b

johnson (1.2.0) is Failing
for James Conroy-Finn (Mac OSX, over 2 years ago)

Spidermonkey fails to build.

conversions.c:333: error: ‘ruby_errinfo’ undeclared (first use in this function)

johnson (1.1.0) is Working
for Justin Weiss (Mac OSX, over 2 years ago)

1.1.1 and 1.1.2 both fail, but 1.1.0 installs fine. I haven't had a chance to run it yet, though.