ros-controls/control_toolbox — pull request #9 by marcoesposito1988 (2014-02-03 10:47:13+00:00)
Title: Fix abs/fabs problem with Clang and libc++

Prevents the error: use of undeclared identifier 'abs'; did you mean 'fabs'?
with Clang 5 on Mac OS X Mavericks