emerge sys-libs/db
Calculating dependencies  ... done!

>>> Verifying ebuild manifests

>>> Emerging (1 of 1) sys-libs/db-5.3.28-r2::gentoo
 * db-5.3.28.tar.gz BLAKE2B SHA512 size ;-) ...                                                                                                        [ ok ]
>>> Unpacking source...
>>> Unpacking db-5.3.28.tar.gz to /var/tmp/portage_tmpfs/portage/sys-libs/db-5.3.28-r2/work
>>> Source unpacked in /var/tmp/portage_tmpfs/portage/sys-libs/db-5.3.28-r2/work
>>> Preparing source in /var/tmp/portage_tmpfs/portage/sys-libs/db-5.3.28-r2/work/db-5.3.28/build_unix ...
 * Applying db-4.8.24-java-manifest-location.patch ...                                                                                                 [ ok ]
 * Applying db-4.6-jni-check-prefix-first.patch ...                                                                                                    [ ok ]

 * Cannot find $EPATCH_SOURCE!  Value for $EPATCH_SOURCE is:
 *
 *   /var/tmp/portage_tmpfs/portage/sys-libs/db-5.3.28-r2/files/db-4.3-listen-to-java-options.patch
 *   ( db-4.3-listen-to-java-options.patch )

 * ERROR: sys-libs/db-5.3.28-r2::gentoo failed (prepare phase):
 *   Cannot find $EPATCH_SOURCE!
 *
 * Call stack:
 *     ebuild.sh, line  125:  Called src_prepare
 *   environment, line 5083:  Called epatch '/var/tmp/portage_tmpfs/portage/sys-libs/db-5.3.28-r2/files/db-4.3-listen-to-java-options.patch'
 *   environment, line 1474:  Called die
 * The specific snippet of code:
 *                   die "Cannot find \$EPATCH_SOURCE!";
 *
 * If you need support, post the output of `emerge --info '=sys-libs/db-5.3.28-r2::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=sys-libs/db-5.3.28-r2::gentoo'`.
!!! When you file a bug report, please include the following information:
GENTOO_VM=  CLASSPATH="" JAVA_HOME="/etc/java-config-2/current-system-vm"
JAVACFLAGS="" COMPILER=""
and of course, the output of emerge --info =db-5.3.28
 * The complete build log is located at '/var/log/portage/buildlog/sys-libs:db-5.3.28-r2:20191112-124302.log'.
 * The ebuild environment file is located at '/var/tmp/portage_tmpfs/portage/sys-libs/db-5.3.28-r2/temp/environment'.
 * Working directory: '/var/tmp/portage_tmpfs/portage/sys-libs/db-5.3.28-r2/work/db-5.3.28'
 * S: '/var/tmp/portage_tmpfs/portage/sys-libs/db-5.3.28-r2/work/db-5.3.28/build_unix'

>>> Failed to emerge sys-libs/db-5.3.28-r2, Log file:

>>>  '/var/log/portage/buildlog/sys-libs:db-5.3.28-r2:20191112-124302.log'

 * Messages for package sys-libs/db-5.3.28-r2:
 * Log file: /var/log/portage/buildlog/sys-libs:db-5.3.28-r2:20191112-124302.log

 * Cannot find $EPATCH_SOURCE!  Value for $EPATCH_SOURCE is:
 *
 *   /var/tmp/portage_tmpfs/portage/sys-libs/db-5.3.28-r2/files/db-4.3-listen-to-java-options.patch
 *   ( db-4.3-listen-to-java-options.patch )
 * ERROR: sys-libs/db-5.3.28-r2::gentoo failed (prepare phase):
 *   Cannot find $EPATCH_SOURCE!
 *
 * Call stack:
 *     ebuild.sh, line  125:  Called src_prepare
 *   environment, line 5083:  Called epatch '/var/tmp/portage_tmpfs/portage/sys-libs/db-5.3.28-r2/files/db-4.3-listen-to-java-options.patch'
 *   environment, line 1474:  Called die
 * The specific snippet of code:
 *                   die "Cannot find \$EPATCH_SOURCE!";
 *
 * If you need support, post the output of `emerge --info '=sys-libs/db-5.3.28-r2::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=sys-libs/db-5.3.28-r2::gentoo'`.
 * The complete build log is located at '/var/log/portage/buildlog/sys-libs:db-5.3.28-r2:20191112-124302.log'.
 * The ebuild environment file is located at '/var/tmp/portage_tmpfs/portage/sys-libs/db-5.3.28-r2/temp/environment'.
 * Working directory: '/var/tmp/portage_tmpfs/portage/sys-libs/db-5.3.28-r2/work/db-5.3.28'
 * S: '/var/tmp/portage_tmpfs/portage/sys-libs/db-5.3.28-r2/work/db-5.3.28/build_unix'