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[Core] Update mpaland/printf to eyalroz/printf fork (#16163)

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mpaland printf implementation was abandoned in ~2019 and the fork by
eyalroz is now regarded to be the goto replacement of it. So this commit
incoporates the changes needed to use this fork in QMK.

Note that pointer ptrdiff_t is always supported since commit
51c90f93a97fdaef895783ecbe24569be0db7cb8
This commit is contained in:
Stefan Kerkmann 2022-07-07 09:27:50 +02:00 • committed by GitHub
parent 8f086faf8a
commit d9bb189e25
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8 changed files with 61 additions and 39 deletions
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platforms/avr/platform.mk
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@ -24,6 +24,7 @@ COMPILEFLAGS += -fdata-sections
COMPILEFLAGS += -fpack-struct
COMPILEFLAGS += -fshort-enums
COMPILEFLAGS += -mcall-prologues
COMPILEFLAGS += -fno-builtin-printf
# Linker relaxation is only possible if
# link time optimizations are not enabled.