Building deps for ....../../source-HEAD/mozilla/xpcom/glue/nsIInterfaceRequestorUtils.cpp
m:\tree-firefox-main\objdir\dist\include\xpcom\nsIProgrammingLanguage.h(35) : warning C4003: not enough actual parameters for macro 'NS_DEFINE_STATIC_IID_ACCESSOR'
m:\tree-firefox-main\objdir\dist\include\xpcom\nsIClassInfo.h(36) : warning C4003: not enough actual parameters for macro 'NS_DEFINE_STATIC_IID_ACCESSOR'
../../dist\include\xpcom\nsIInterfaceRequestor.h(41) : warning C4003: not enough actual parameters for macro 'NS_DEFINE_STATIC_IID_ACCESSOR'
m:\tree-firefox-main\objdir\dist\include\xpcom\nsISupportsUtils.h(202) : error C2039: 'GetIID' : is not a member of 'nsIInterfaceRequestor'
../../dist\include\xpcom\nsIInterfaceRequestor.h(38) : see declaration of 'nsIInterfaceRequestor'
This is the same error that the 'creature' tinderbox was getting, but unlike that machine, it didn't go away after all the bustage-fixes.
After nuking objdir/dist and objdir/xpcom/base - neither of which helped - I just nuked objdir/xpcom and it finally looks like it might work, having got twice as far into the build as the error point (though it would not surprise me if I needed to nuke other totally random directories later).
The build system is just broken.
It's getting to the point where I'm tempted to make an auto-build-fixer, that just keeps nuking random objdir folders until it works. It would be a more productive use of my time than fixing all these damn problems by hand.