Bug#819419: libc6: GLIBC_PRIVATE not defined in file libc.so.6

[pv0001@dynapic.net]

Package: libc6
Version: 2.22-4
Severity: normal

Dear Maintainer,

Apache2 does not start

Error reported:
apache2: Syntax error on line 140 of /etc/apache2/apache2.conf: Syntax
error on line 1 of /etc/apache2/mods-enabled/php5.load: Cannot load
/usr/lib/apache2/modules/libphp5.so into server:
/lib/x86_64-linux-gnu/libresolv.so.2: symbol __h_errno, version
GLIBC_PRIVATE not defined in file libc.so.6 with link time reference

Output of: # ldd /bin/ls
        linux-vdso.so.1 (0x00007ffea898f000)
        libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1
(0x00007f19ea11f000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f19e9d7b000)
        libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3
(0x00007f19e9b0a000)
        libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f19e9906000)
        /lib64/ld-linux-x86-64.so.2 (0x000055f6125c6000)
        libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007f19e96e9000)

-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 4.3.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=ANSI_X3.4-1968)
(ignored: LC_ALL set to C)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages libc6 depends on:
ii  libgcc1  1:5.3.1-12

libc6 recommends no packages.

Versions of packages libc6 suggests:
ii  debconf [debconf-2.0]  1.5.59
pn  glibc-doc              <none>
ii  libc-l10n              2.22-4
ii  locales                2.22-4

-- debconf information:
  glibc/kernel-not-supported:
  glibc/upgrade: true
  glibc/restart-services:
  glibc/restart-failed:
  glibc/kernel-too-old:
* libraries/restart-without-asking: true
  glibc/disable-screensaver: