Reading package lists... Building dependency tree... Reading state information... NOTICE: 'ant' packaging is maintained in the 'Git' version control system at: git://anonscm.debian.org/pkg-java/ant.git Need to get 3,221 kB of source archives. Get:1 http://urika:3142/ftp.debian.org/debian/ sid/main ant 1.9.6-1 (dsc) [2,558 B] Get:2 http://urika:3142/ftp.debian.org/debian/ sid/main ant 1.9.6-1 (tar) [3,202 kB] Get:3 http://urika:3142/ftp.debian.org/debian/ sid/main ant 1.9.6-1 (diff) [16.8 kB] gpgv: keyblock resource `/tmp/.gnupg/trustedkeys.gpg': file open error gpgv: Signature made Mon 06 Jul 2015 09:06:07 AM UTC using RSA key ID E4B9D0AC gpgv: Can't check signature: public key not found dpkg-source: warning: failed to verify signature on ./ant_1.9.6-1.dsc dpkg-source: info: extracting ant in ant-1.9.6 dpkg-source: info: unpacking ant_1.9.6.orig.tar.xz dpkg-source: info: unpacking ant_1.9.6-1.debian.tar.xz dpkg-source: info: applying 0002-do-not-build-test-jars.patch dpkg-source: info: applying 0006-fix-ANT_HOME-path.patch dpkg-source: info: applying 0007-use-build.classpath.patch dpkg-source: info: applying 0008-junit4-replace-assumeFalse.patch Fetched 3,221 kB in 0s (5,254 kB/s) Reading package lists... Building dependency tree... Reading state information... The following packages have unmet dependencies: gcj-native-helper : Depends: default-jdk (= 2:1.7-52) but 2:1.8-52 is to be installed E: Build-dependencies for ant could not be satisfied. Killed old client process Internet Systems Consortium DHCP Client 4.3.2 Copyright 2004-2015 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/eth0/2a:d6:6a:bd:6a:1b Sending on LPF/eth0/2a:d6:6a:bd:6a:1b Sending on Socket/fallback DHCPRELEASE on eth0 to 10.0.3.1 port 67 dpkg-buildpackage: source package ant dpkg-buildpackage: source version 1.9.6-1 dpkg-buildpackage: source distribution unstable dpkg-buildpackage: source changed by Emmanuel Bourg dpkg-source --before-build ant-1.9.6 dpkg-buildpackage: host architecture amd64 dpkg-checkbuilddeps: Unmet build dependencies: gcj-native-helper libbcel-java (>= 5.0) libcommons-net-java dpkg-buildpackage: warning: build dependencies/conflicts unsatisfied; aborting dpkg-buildpackage: warning: (Use -d flag to override.)