Leaving directory `/Users/dmoles/.emacs.d/elpa/color-theme-sanityinc-solarized-2.29'
Compiling file /Users/dmoles/.emacs.d/elpa/color-theme-sanityinc-solarized-2.29/color-theme-sanityinc-solarized.el at Mon Sep 14 11:26:12 2015
Entering directory `/Users/dmoles/.emacs.d/elpa/color-theme-sanityinc-solarized-2.29/'
In end of data:
color-theme-sanityinc-solarized.el:822:1:Warning: the function
`color-theme-install' is not known to be defined.
Compiling file /Users/dmoles/.emacs.d/elpa/color-theme-sanityinc-solarized-2.29/sanityinc-solarized-dark-theme.el at Mon Sep 14 11:26:12 2015
Compiling file /Users/dmoles/.emacs.d/elpa/color-theme-sanityinc-solarized-2.29/sanityinc-solarized-light-theme.el at Mon Sep 14 11:26:12 2015
I think the theme works anyway? But it's hard to tell whether it's working 100%.
This can be ignored. It's a side effect of the package supporting both the Emacs 24 color theme system and the old color-theme package, which you will not have installed.
With Gnu Emacs for Mac OS X 24.4 on Mac OS 10.10, on installing from MELPA:
I think the theme works anyway? But it's hard to tell whether it's working 100%.