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?