=> Bootstrap dependency digest>=20211023: found digest-20220214
=> Checksum BLAKE2s OK for php-8.1.31.tar.xz
=> Checksum SHA512 OK for php-8.1.31.tar.xz
===> Installing dependencies for php81-opcache-8.1.31
=> Tool dependency libtool-base>=2.4.2nb9: found libtool-base-2.4.7nb1
=> Tool dependency mktools-[0-9]*: found mktools-20220614
=> Tool dependency automake>=1.9: found automake-1.16.5nb3
=> Tool dependency autoconf>=2.58: found autoconf-2.72
=> Tool dependency pkgconf-[0-9]*: found pkgconf-2.3.0
=> Tool dependency cwrappers>=20150314: found cwrappers-20220403
=> Build dependency pcre2>=10.30: found pcre2-10.44
=> Full dependency php>=8.1.30nb3<8.2: found php-8.1.31
ERROR: [resolve-dependencies] A package matching ``autoconf>=2.58'' should
ERROR:     be installed, but one cannot be found.  Perhaps there is a
ERROR:     stale work directory for ../../devel/autoconf?
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/devel/php-opcache