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build: Add workaround to suppress broken avr-gcc "misspelled" warnings 

Detect avr gcc v4.8.1 and then disable warnings during the klipper.o
linking to suppress bogus "misspelled signal handler" warnings.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2017-04-23 19:42:38 -04:00
parent 37865d69a2
commit 1878da228d
3 changed files with 4 additions and 4 deletions
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2
Makefile
View File

@ -83,7 +83,7 @@ $(OUT)declfunc.lds: src/declfunc.lds.S
$(OUT)klipper.o: $(patsubst %.c, $(OUT)src/%.o,$(src-y)) $(OUT)declfunc.lds
@echo " Linking $@"
$(Q)$(CC) $(CFLAGS) -Wl,-r -Wl,-T,$(OUT)declfunc.lds -nostdlib $(patsubst %.c, $(OUT)src/%.o,$(src-y)) -o $@
$(Q)$(CC) $(CFLAGS) $(CFLAGS_klipper.o) -Wl,-r -Wl,-T,$(OUT)declfunc.lds -nostdlib $(patsubst %.c, $(OUT)src/%.o,$(src-y)) -o $@
$(OUT)compile_time_request.o: $(OUT)klipper.o ./scripts/buildcommands.py
@echo " Building $@"

3
docs/Installation.md
View File

@ -49,9 +49,6 @@ configured, run:
make
```
Ignore any warnings you may see about "misspelled signal handler" (it
is due to a bug fixed in gcc v4.8.3).
Installing Klipper on an AVR micro-controller
---------------------------------------------

3
src/avr/Makefile
View File

@ -13,6 +13,9 @@ src-$(CONFIG_AVR_WATCHDOG) += avr/watchdog.c
src-$(CONFIG_AVR_USBSERIAL) += avr/usbserial.c ../lib/pjrc_usb_serial/usb_serial.c
src-$(CONFIG_AVR_SERIAL) += avr/serial.c
# Suppress broken "misspelled signal handler" warnings on gcc 4.8.1
CFLAGS_klipper.o := $(if $(filter 4.8.1, $(shell $(CC) -dumpversion)), -w)
# Build the additional hex output file
target-y += $(OUT)klipper.elf.hex