enable virtualbox release log

[ys]

Hi ,
I want to enable the verbose log for virtualbox , and tried VBOX_RELEASE_LOG environment varibale as follow
VBOX_RELEASE_LOG=all.flow
with this setting I think I will get all the LogFlow output but I seems not take effect . Could someone give me
some advice ? thanks in advance . BTW I'm using virtualbox 4.1.8 for Windows .

[mpack]

and tried VBOX_RELEASE_LOG environment variable as follow

I can't find anything in the user manual about a VBOX_RELEASE_LOG environment variable. Where did you get it from?

If you saw it in the source and it's a source build option then it will have no effect on code already compiled and linked.

[Martin]

How about the technical documentation in the Wiki?
https://www.virtualbox.org/wiki/VBoxLogging

[ys]

I've checked the log related code find LOG_ENABLED control all the Log* macros , if LOG_ENABLED
is not defined all the Log* call will expand to nothing , so , I think If I want to get these log message , I must
compile it by myself with LOG_ENABLED defined or get a debug version virtualbox binary . Is there such thing ?
Thanks

[michaln]

You build it yourself.