[avr-libc-dev] [bug #50811] using -Wl, -u, vfprintf -lprintf_min causes program to grow a lot

[anonymous]

Follow-up Comment #4, bug #50811 (project avr-libc):

You're correct, there's no reason when printf isn't being used to use those
linker options.  However:

* realistically at least some linker options are at least somewhat black magic
to many users.

* printf() is particularly likely to go from unused to used during debugging,
during which large swings in code size may be extra confusing

For these reasons, I still think adding something to the documentation would
make sense.  It could be as simple as one sentence explaining what you just
explained:

"Note that if your program doesn't end up calling vfprintf(), using the
printf_min linker flags will increase code size because it forces the
vfprintf() function to be included even though it isn't used."

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