Things in the tools folder that do things differently if "OFFICIAL_BUILD_MACHINE" is set:

	in razzle.cmd:
		set __BUILDMACHINE__=%_BuildBranch%
		set NO_PDB_PATHS=1
		if type is "fre", sets _NTPOGODIR depending on what branch is set to

	in makefile.def:
		adds "-DOFFICIAL_BUILD=1" to TARGET_DBG_DEFINES

	in postbuild.cmd
		sets compression to true, regardless of cpu cores

	in timebuild.pl
		some check around line 404, doesn't look like it changes anything meaningful

	in verifybuildmachine.cmd
		checks BuildMachines.txt and sets/unsets OFFICIAL_BUILD_MACHINE accordingly

	in pbuild.dat:
		adds "PostBuildScripts\capturesourcefilelist.cmd -g ntdev"
		and "PostBuildScripts\submit_public.cmd"
		to the list of scripts to run during postbuild

	in postbuildscripts/catsign.cmd
		copies some extra files "for testing purposes" if it is == "1"

	in postbuildscripts/cdimage.cmd
		sets compression to true, regardless of cpu cores

	in postbuildscripts/copywow64.cmd
		sets compression to true, regardless of cpu cores
		calls errmsg.cmd instead of logmsg.cmd and does goto :END around line 137
		displays a different error message around line 293

	in postbuildscripts/cplocation.cmd
		according to message at the beginning of the file:
		"If OFFICIAL_BUILD_MACHINE is set will loop waiting for a
		 matching build number. Otherwise, just wait for any x86
		 build of the same debug type."

	in postbuildscripts/ddkcabs.bat
		script only "builds" if "-f" is passed, OFFICIAL_BUILD_MACHINE is set or if __BUILDMACHINE__ == "LB6RI"

	in postbuildscripts/deletebuild.cmd
		has some check for it around line 917

	in postbuildscripts/makebfloppy.cmd
		sets compression to true, regardless of cpu cores

	in postbuildscripts/makeprocd2.cmd
		sets compression to true, regardless of cpu cores

	in postbuildscripts/pbuild.cmd
		only adds lines beginning with "OFFICIAL" to list of scripts to run if OFFICIAL_BUILD_MACHINE is set

	in postbuildscripts/pdbsrcstream.cmd
		script doesn't run unless it is set

	in postbuildscripts/release.cmd
		only runs "miscrel.cmd" and "startsymcopy.pl" if OFFICIAL_BUILD_MACHINE is set

	in postbuildscripts/submit_public.cmd
		script doesn't run unless it is set

	in postbuildscripts/symbolcd.cmd
		script doesn't run unless it is set

	in postbuildscripts/symcd.cmd
		according to message at the beginning of the file:
		"If you define Official_Build_Machine, the script creates the cabs. If not, the
		 default does only munge public symbols."

	in postbuildscripts/symindex.pm
		doesn't "index symbols" unless it is set

	in postbuildscripts/symmungepublic.cmd
		has some lines starting with # that mention the variable

	in octobuild.cmd (which I'm pretty sure we don't use at all):
		runs "CaptureSourceFilelist.cmd"
		runs "perl release.pl"
		runs "postbuildscripts\AutoBootTest.cmd"

	in popfilter/popfilter.pl (which I'm pretty sure we don't use at all):
		does something with symbols
			(around lines 813 and 959)

	in quickindex.cmd (which I'm pretty sure we don't use at all)
		script only runs if it is set

	in sendbuildstats.pl (which I'm pretty sure we don't use at all)
		script does some things differently

	in sendbuildstatslab7.pl (which I'm pretty sure we don't use at all)
		script does some things differently

	in setbuildstatus.cmd  (which I'm pretty sure we don't use at all)
		script doesn't really do anything meaningful unless it is set

	in postbuildscripts/capturesourcefilelist.cmd (which has to do with source depot, so we can't really run it properly)
		script doesn't run unless it is set