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J. Nick Koston
4a842f8e83
IDF 6 uses picolibc instead of newlib. In newlib, vfprintf was a thin 36-byte trampoline to _vfprintf_r, so wrapping printf/vprintf/fprintf was sufficient to dead-code eliminate _vfprintf_r. In picolibc, vfprintf IS the heavy implementation (~2.8 KB) and is referenced directly by SDK components. Add vfprintf to the wrap list to intercept those references.
