On 08/02/2010 03:15 PM, Eric Blake wrote:
On 07/31/2010 10:47 AM, Ralf Wildenhues wrote:
* Paolo Bonzini wrote on Sat, Jul 31, 2010 at 11:24:50AM CEST:
cd "${var:-.}"
Is :- portable now?
We still recommend against it in the manual. But Solaris /bin/sh
supports it, and according to http://www.in-ulm.de/~mascheck/bourne/, it
was added in SysIII in 1981, while shell functions appeared in SVR2 in
1984, and shell functions with local $@ in SVR3 in 1986. Since we
depend on the latter for most m4sh targest, should we start testing for
it in m4sh, and claiming that it is portable within configure scripts?
Pretty please... 8|)
The only problematic platform seems to be Ultrix, but didn't the Ultrix
shell even lack shell functions?
Paolo
