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stm32/mboot: Use additional CFLAGS to compile string0.c. 

This is the same as a902b69dd5 but applied to
mboot's Makefile.

Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George 2020-06-23 14:00:16 +10:00
parent 81a7293ed6
commit b4dc4c5b9a
1 changed files with 5 additions and 0 deletions
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5
ports/stm32/mboot/Makefile
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@ -57,6 +57,10 @@ CFLAGS_MCU_h7 = $(CFLAGS_CORTEX_M) -mtune=cortex-m7 -mcpu=cortex-m7
CFLAGS_MCU_l4 = $(CFLAGS_CORTEX_M) -mtune=cortex-m4 -mcpu=cortex-m4
CFLAGS_MCU_wb = $(CFLAGS_CORTEX_M) -mtune=cortex-m4 -mcpu=cortex-m4
# Standard C functions like memset need to be compiled with special flags so
# the compiler does not optimise these functions in terms of themselves.
CFLAGS_BUILTIN ?= -ffreestanding -fno-builtin -fno-lto
CFLAGS = $(INC) -Wall -Wpointer-arith -Wdouble-promotion -Wfloat-conversion -Werror -std=gnu99 -nostdlib $(CFLAGS_MOD) $(CFLAGS_EXTRA)
CFLAGS += -D$(CMSIS_MCU)
CFLAGS += $(CFLAGS_MCU_$(MCU_SERIES))
@ -84,6 +88,7 @@ else
COPT += -Os -DNDEBUG
endif
$(BUILD)/lib/libc/string0.o: CFLAGS += $(CFLAGS_BUILTIN)
LIB_SRC_C = \
lib/libc/string0.c \
lib/oofatfs/ff.c \