PKG_CONFIG_PATH=/tmp/myswitch/build/_opam/lib/pkgconfig PREFIX=/tmp/myswitch/build/_opam ORB_BUILDING_PACKAGE=mirage-unikernel-roburio-hvt OPAMERRLOGLEN=0 OPAMSOLVERTIMEOUT=600 SOURCE_DATE_EPOCH=1589138087 PATH=/bin:/sbin:/usr/bin:/usr/local/bin:/usr/local/sbin:/usr/sbin HOME=/root SWITCH_PATH=/tmp/myswitch/build OS_FAMILY=bsd OS_VERSION=1202000 OS_DISTRIBUTION=freebsd OS=freebsd