calculate ~ # emerge app-crypt/cprocsp -av

Local copy of remote index is up-to-date and will be used.

Local copy of remote index is up-to-date and will be used.

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild  N f  ~] app-crypt/cprocsp-4.0.0::local  0 KiB

Total: 1 package (1 new), Size of downloads: 0 KiB
Fetch Restriction: 1 package

Would you like to merge these packages? [Yes/No]
>>> Verifying ebuild manifests
>>> Emerging (1 of 1) app-crypt/cprocsp-4.0.0::local
>>> Failed to emerge app-crypt/cprocsp-4.0.0, Log file:
>>>  '/var/calculate/tmp/portage/app-crypt/cprocsp-4.0.0/temp/build.log'
>>> Jobs: 0 of 1 complete, 1 failed                 Load avg: 1.55, 1.01, 0.70
 * Package:    app-crypt/cprocsp-4.0.0
 * Repository: local
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux userland_GNU
 * FEATURES:   network-sandbox preserve-libs sandbox usersandbox
>>> Unpacking source...
 * ERROR: app-crypt/cprocsp-4.0.0::local failed (unpack phase):
 *   Nothing passed to the 'unpack' command
 *
 * Call stack:
 *          ebuild.sh, line  125:  Called src_unpack
 *        environment, line 2075:  Called unpack
 *   phase-helpers.sh, line  316:  Called die
 * The specific snippet of code:
 *   	[ -z "$*" ] && die "Nothing passed to the 'unpack' command"
 *
 * If you need support, post the output of `emerge --info '=app-crypt/cprocsp-4.0.0::local'`,
 * the complete build log and the output of `emerge -pqv '=app-crypt/cprocsp-4.0.0::local'`.
 * The complete build log is located at '/var/calculate/tmp/portage/app-crypt/cprocsp-4.0.0/temp/build.log'.
 * The ebuild environment file is located at '/var/calculate/tmp/portage/app-crypt/cprocsp-4.0.0/temp/environment'.
 * Working directory: '/var/calculate/tmp/portage/app-crypt/cprocsp-4.0.0/work'
 * S: '/var/calculate/tmp/portage/app-crypt/cprocsp-4.0.0/work/cprocsp-4.0.0'

 * Messages for package app-crypt/cprocsp-4.0.0:

 * ERROR: app-crypt/cprocsp-4.0.0::local failed (unpack phase):
 *   Nothing passed to the 'unpack' command
 *
 * Call stack:
 *          ebuild.sh, line  125:  Called src_unpack
 *        environment, line 2075:  Called unpack
 *   phase-helpers.sh, line  316:  Called die
 * The specific snippet of code:
 *   	[ -z "$*" ] && die "Nothing passed to the 'unpack' command"
 *
 * If you need support, post the output of `emerge --info '=app-crypt/cprocsp-4.0.0::local'`,
 * the complete build log and the output of `emerge -pqv '=app-crypt/cprocsp-4.0.0::local'`.
 * The complete build log is located at '/var/calculate/tmp/portage/app-crypt/cprocsp-4.0.0/temp/build.log'.
 * The ebuild environment file is located at '/var/calculate/tmp/portage/app-crypt/cprocsp-4.0.0/temp/environment'.
 * Working directory: '/var/calculate/tmp/portage/app-crypt/cprocsp-4.0.0/work'
 * S: '/var/calculate/tmp/portage/app-crypt/cprocsp-4.0.0/work/cprocsp-4.0.0'