>>> Emerging (2 of 2) sys-cluster/singularity-3.8.7::core-kit
 * singularity-3.8.7-c6dcd5c.tar.gz BLAKE2B SHA512 size ;-) ...                                                                                                            [ ok ]
 * Determining the location of the kernel source code
 * Found kernel source directory:
 *     /usr/src/linux
 * Found sources for kernel version:
 *     5.18.14_p1-debian-sources
 * Checking for suitable kernel configuration options...                                                                                                                   [ ok ]
>>> Unpacking source...
>>> Unpacking singularity-3.8.7-c6dcd5c.tar.gz to /var/tmp/portage/sys-cluster/singularity-3.8.7/work
>>> Source unpacked in /var/tmp/portage/sys-cluster/singularity-3.8.7/work
>>> Preparing source in /var/tmp/portage/sys-cluster/singularity-3.8.7/work/singularity-3.8.7 ...
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/sys-cluster/singularity-3.8.7/work/singularity-3.8.7 ...
E: Not inside a git repository and no VERSION file found. Abort.
 * ERROR: sys-cluster/singularity-3.8.7::core-kit failed (configure phase):
 *   Error invoking mconfig
 * 
 * Call stack:
 *     ebuild.sh, line  93:  Called src_configure
 *   environment, line 1718:  Called die
 * The specific snippet of code:
 *       ./mconfig -v ${myconfargs[@]} || die "Error invoking mconfig"
 *