evanmiller/ChicagoBoss — pull request #244 by cspiegel (2013-04-09 17:22:20+00:00)
Title: Fix for issue #243 (bashism in Makefile)

[[ is a bash/zsh-ism that does not exist in the POSIX /bin/sh, and by
default, GNU make (perhaps others) uses /bin/sh as its shell. On
systems where /bin/sh is a POSIX-compliant shell, the [[ test fails.

This addresses issue #243.