1.31.28 issue regarding some packages that cannot be authenticated is gone, but there's a new issue while building 1.31.29:

 /bin/mkdir -p '/usr/share/man/man3'
 /usr/bin/install -c -m 644 ./guestfs-perl.3 '/usr/share/man/man3'
/usr/bin/install: cannot stat './guestfs-perl.3': No such file or directory
Makefile:1531: recipe for target 'install-man3' failed
make[3]: *** [install-man3] Error 1
make[3]: Leaving directory '/home/actionmystique/Program-Files/Ubuntu/Libguestfs/git-libguestfs/perl/examples'
Makefile:1623: recipe for target 'install-am' failed
make[2]: *** [install-am] Error 2
make[2]: Leaving directory '/home/actionmystique/Program-Files/Ubuntu/Libguestfs/git-libguestfs/perl/examples'
Makefile:1843: recipe for target 'install-recursive' failed
make[1]: *** [install-recursive] Error 1
make[1]: Leaving directory '/home/actionmystique/Program-Files/Ubuntu/Libguestfs/git-libguestfs'
Makefile:2307: recipe for target 'install' failed
make: *** [install] Error 2

****  Installation failed. Aborting package creation.

Whole log is attached.

--
Jean-Christophe Manciot

  Architecte réseaux et Sécurité  Network & Security Architect