* maint:
tests: fix a spurious XPASS on OpenIndiana
tests: avoid spurious failure of 't/vala-vapi.sh' on OpenIndiana
tests: avoid spurious failure of 't/uninstall-fail.sh' on OpenIndiana
tests: reimplement wrappers for automake and aclocal in perl
tests: work around a ksh bug w.r.t. ${1+"$@"}
depcomp: style changes to Portland Group Compilers support
depcomp: initial support for Portland Group Compilers