Bug#991517: cups: CUPS cant access library files because they have different names

[Anthony Gaudino <anthonygaudino45@gmail.com>]

Package: cups
Version: 2.3.3op2-3+deb11u1
Severity: important
X-Debbugs-Cc: anthonygaudino45@gmail.com

Dear Maintainer,

When I try to print anything with CUPS I had the following 2 errors on
the CUPS log:

```
E [23/Jul/2021:17:37:03 +0100] [Job 27] libcups.so load failure
E [23/Jul/2021:17:37:03 +0100] [Job 27] Unable to open raster stream - : Broken pipe
```

The printer would not print anything.

After investigating, I found out that CUPS is trying to access
`/usr/lib/x86_64-linux-gnu/libcups.so` and `/usr/lib/x86_64-linux-gnu/libcupsimage.so`
but Debian has these files named as `libcups.so.2` and
`libcupsimage.so.2` instead.

I solved the problem for myself by just copying those files and saving
with the names CUPS was looking for.


-- System Information:
Debian Release: 11.0
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'unstable'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.10.0-8-amd64 (SMP w/16 CPU threads)
Kernel taint flags: TAINT_CPU_OUT_OF_SPEC, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages cups depends on:
ii  cups-client            2.3.3op2-3+deb11u1
ii  cups-common            2.3.3op2-3+deb11u1
ii  cups-core-drivers      2.3.3op2-3+deb11u1
ii  cups-daemon            2.3.3op2-3+deb11u1
ii  cups-filters           1.28.7-1
ii  cups-ppdc              2.3.3op2-3+deb11u1
ii  cups-server-common     2.3.3op2-3+deb11u1
ii  debconf [debconf-2.0]  1.5.77
ii  ghostscript            9.53.3~dfsg-7
ii  libavahi-client3       0.8-5
ii  libavahi-common3       0.8-5
ii  libc6                  2.31-13
ii  libcups2               2.3.3op2-3+deb11u1
ii  libgcc-s1              10.2.1-6
ii  libstdc++6             10.2.1-6
ii  libusb-1.0-0           2:1.0.24-3
ii  poppler-utils          20.09.0-3.1
ii  procps                 2:3.3.17-5

Versions of packages cups recommends:
ii  avahi-daemon  0.8-5
ii  colord        1.4.5-3

Versions of packages cups suggests:
pn  cups-bsd                                   <none>
pn  cups-pdf                                   <none>
pn  foomatic-db-compressed-ppds | foomatic-db  <none>
pn  smbclient                                  <none>
ii  udev                                       247.3-6

-- debconf information:
  cupsys/raw-print: true
  cupsys/backend: lpd, socket, usb, snmp, dnssd