For a lot of people for a long time, yes. People were complaining about the syntax based upon specific types and amounts of whitespace in the 1980s. Now note

For a lot of people for a long time, yes. People were complaining about the syntax based upon specific types and amounts of whitespace in the 1980s. Now note from the rest of the very discussion here in front of us that people took action on this almost twenty years ago. And that's just Johnny-come-lately GNU make. Microsoft nmake accepted either spaces or tab characters pretty much a decade before that. And there were plenty of others, from Borland's to multiple shareware versions. Even I got in on the act with my own private reimplementation of make. Somewhere around 1990, if memory serves.