SRU: 64bit time_t changes for gnat rdep packages

[Matthias Klose]

The 64bit time_t changes for gnat-13 didn't make it for the 24.04 LTS release. These were prepared upstream in https://gcc.gnu.org/PR114065, and backported locally to the GCC 13 and GCC 14 packages.

These are almost all no-change rebuilds are prepared in the ubuntu-toolchain-r/gnat PPA using the proposed toolchain packages from the ubuntu-toolchain-r/ppa PPA.

Three packages were backported from noble, no new upstream versions, just Debian release updates. These are: gprbuild, libflorist and libgtkada.

[Matthias Klose (doko)]

The packages can be binary-copied to the proposed pocket. If they should be rebuilt in the proposed pocket, this will be a four-level transition in the following order:

Dependency level 1
adasockets
ghdl
libgmpada
libxmlada
music123
plplot
topal

Dependency level 2
gprbuild

Dependency level 3
ada-bar-codes
adacgi
ahven
libaunit
libflorist
libgnatcoll
libgtkada
libncursesada
libtemplates-parser
libtexttools
libxmlezout
phcpack

Dependency level 4
alire
anet
dbusada
libalog
libgnatcoll-bindings
liblog4ada
pcscada

Dependency level 5
libgnatcoll-db