Originally we used CodeWarrior internally and then Carbide. Most of the Carbide work was done in Dallas and
I remember them having a stressful time dealing with Symbian's weird MMP + abld build system.
Yeah, I know also those nice Perl based scripts with batch files glue somehow being called from CodeWarrior, just referred Carbide, because at the end the experience wasn't that bad, specially by the Belle days.
Google just doesn't get it, note that major GDC 2020 Android talks are mostly related to NDK improvements, 10 years later.