>>> Preparing source in /var/tmp/portage/sys-libs/efivar-0.21/work/efivar-0.21 ... * Applying 0.21-initializer.patch ... [ ok ] * Applying 0.21-musl.patch ... [ ok ] * Cannot find $EPATCH_SOURCE! Value for $EPATCH_SOURCE is: * * /var/repo/musl/sys-libs/efivar/files/0.21-nvme_ioctl.h.patch * ( 0.21-nvme_ioctl.h.patch ) * ERROR: sys-libs/efivar-0.21::musl failed (prepare phase): * Cannot find $EPATCH_SOURCE! * * Call stack: * ebuild.sh, line 115: Called src_prepare * environment, line 1960: Called epatch '/var/repo/musl/sys-libs/efivar/files/0.21-nvme_ioctl.h.patch' * environment, line 571: Called die * The specific snippet of code: * die "Cannot find \$EPATCH_SOURCE!"; * * If you need support, post the output of `emerge --info '=sys-libs/efivar-0.21::musl'`, * the complete build log and the output of `emerge -pqv '=sys-libs/efivar-0.21::musl'`. * The complete build log is located at '/var/tmp/portage/sys-libs/efivar-0.21/temp/build.log'. * The ebuild environment file is located at '/var/tmp/portage/sys-libs/efivar-0.21/temp/environment'. * Working directory: '/var/tmp/portage/sys-libs/efivar-0.21/work/efivar-0.21' * S: '/var/tmp/portage/sys-libs/efivar-0.21/work/efivar-0.21'
Okay I should have removed 0.21 because the in tree version works, see bug #543836. Please use that, or 30 from the overlay.
Actually 0.21 in-tree did not work for me, on amd64.