That could be it From https://pidgin.im/pipermail/support/...il/014558.html and http://tehpost.blogspot.kr/2008/03/s...msn-error.html, I think you can either choose to install libgnutls26 or both libnspr4-dev and libnss3-dev
cp -a debian/tmp/usr/share/locale debian/pidgin-l10n//usr/share/ dh_install: usr/lib/purple-2/ssl-gnutls.so exists in debian/tmp but is not installed to anywhere dh_install: usr/lib/purple-2/ssl-nss.so exists in debian/tmp but is not installed to anywhere dh_install: missing files, aborting make: *** [binary-arch] Error 255 dpkg-buildpackage: error: fakeroot debian/rules binary gave error exit status 2