https://dxr.mozilla.org/mozilla-central/search?q=DEFINES+path%3AMakefile.in&redirect=false&case=true A large chunk of these are in browser/installer and b2g/installer: https://dxr.mozilla.org/mozilla-central/source/browser/installer/Makefile.in https://dxr.mozilla.org/mozilla-central/source/b2g/installer/Makefile.in The latter was clearly copied from the former, so maybe we can consolidate those somewhere.
*/installer is totally out of the moz.build processing. Specifically, there is no moz.build for them, and adding one will undoubtedly open a big can of worms. I'd suggest forgetting about them for now.
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