[Bug 1247013] [NEW] mod_python APLOG_NOERRNO unable to log on Apache 2.4

[Jay Freeman (saurik)]

Public bug reported:

When an error occurs from mod_python on Saucy (which uses Apache 2.4)
there is nothing logged. I have tracked this issue down to the value of
APLOG_NOERRNO being incorrect. This value is defined to be
(APLOG_LEVELMASK + 1); on Apache 2.2, APLOG_LEVELMASK was 7, but on
Apache 2.4 it is 15. The value in mod_python's Python code (which sadly
can't use the C definition in a direct manner) is hardcoded as 8, but
for Apache 2.4 it needs to be updated to 16. This variable is defined in
lib/python/mod_python/apache.py, and should be an easy fix. (FWIW, I
have not experienced other issues so far with the mod_python 3.3.1
patches for Apache 2.4.) (Also, I will note that the 3.4 and now 3.5 of
mod_python from upstream no longer even have this variable: it still
exists for backwards-compatibility with old code, but it is defined as
0.)

** Affects: libapache2-mod-python (Ubuntu)
     Importance: Undecided
         Status: New

** Patch added: "patch to fix this issue against 3.3.1"
   https://bugs.launchpad.net/bugs/1247013/+attachment/3897448/+files/aplog_noerrno.patch

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Title:
  mod_python APLOG_NOERRNO unable to log on Apache 2.4

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