search for: _r_check_bashisms_

Dear R-devel, Recently I ran into trouble installing two separate packages, nloptr and ncdf4, both due to the same issue: they have scripts that have the shebang `#! /bin/sh', but have bashisms in them, i.e. non-POSIX-compliant bash scripts. I use dash [1] as my shell environment, since it's about 4x as fast as bash. It looks like it's recently also become the default shell for