On 03/05/2014 01:56 PM, Fred Moyer wrote:
Recent testing on the 2.4 threading branch has uncovered the issue
where the httpd worker type cannot be determined in Apache2::Build for
the reason that MPM_NAME is no longer included in the output of apxs
-q:

fredmoyer@aiko ~/dev $ ./httpd24/bin/apxs -q | grep MPM
fredmoyer@aiko ~/dev $

This seems to be a blocking issue in getting the 2.4 threading branch
to build on prefork based environments. Soliciting suggestions here
for a solution.

The httpd executable on Linux provides this information for the
default server mpm, but I do not know the implications of this
approach on Windows.

fredmoyer@aiko ~/dev $ ./httpd24/bin/httpd -V
Server version: Apache/2.4.7 (Unix)
Server built:   Mar  5 2014 11:55:08
Server's Module Magic Number: 20120211:27
Server loaded:  APR 1.5.0, APR-UTIL 1.5.3
Compiled using: APR 1.5.0, APR-UTIL 1.5.3
Architecture:   64-bit
Server MPM:     prefork
   threaded:     no
     forked:     yes (variable process count)
Server compiled with....
  -D APR_HAS_SENDFILE
  -D APR_HAS_MMAP
  -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
  -D APR_USE_SYSVSEM_SERIALIZE
  -D APR_USE_PTHREAD_SERIALIZE
  -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
  -D APR_HAS_OTHER_CHILD
  -D AP_HAVE_RELIABLE_PIPED_LOGS
  -D DYNAMIC_MODULE_LIMIT=256
  -D HTTPD_ROOT="/Users/fredmoyer/dev/httpd24"
  -D SUEXEC_BIN="/Users/fredmoyer/dev/httpd24/bin/suexec"
  -D DEFAULT_PIDLOG="logs/httpd.pid"
  -D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
  -D DEFAULT_ERRORLOG="logs/error_log"
  -D AP_TYPES_CONFIG_FILE="conf/mime.types"
  -D SERVER_CONFIG_FILE="conf/httpd.conf"

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Should this really be compile time?  You can switch the MPM in config and restart apache. 
 How about always building for worker/event mpm, and then "do the right thing" 
when we are under prefork?

And isn't windows always using some windows_mpm?  You never really wanna change 
that do you?  So the windows build can hard code something and we can forget 
about it.  Its only *nix that switches, right?


-Andy



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