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makefiles/gnu.inc.mk: set flags based on compiler version

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This commit is contained in:
Benjamin Valentin 2022-11-18 23:29:12 +01:00
parent e1aa925c35
commit b30efeeb65
3 changed files with 8 additions and 3 deletions
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2
cpu/esp8266/Makefile.include
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@ -52,5 +52,3 @@ LINKFLAGS += -Tesp8266.peripherals.ld
LINKFLAGS += -Wl,-wrap=pp_attach
LINKFLAGS += -Wl,-wrap=pm_attach
OPTIONAL_CFLAGS_BLACKLIST += -fmacro-prefix-map=$(RIOTBASE)/=

1
makefiles/arch/avr8.inc.mk
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@ -38,7 +38,6 @@ endif
OPTIONAL_CFLAGS_BLACKLIST += -Wformat-overflow
OPTIONAL_CFLAGS_BLACKLIST += -Wformat-truncation
OPTIONAL_CFLAGS_BLACKLIST += -gz
OPTIONAL_CFLAGS_BLACKLIST += -fmacro-prefix-map=$(RIOTBASE)/=
ifeq ($(TOOLCHAIN),gnu)
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105523

8
makefiles/toolchain/gnu.inc.mk
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@ -22,5 +22,13 @@ endif
# Default to the native (g)objdump, helps when using toolchain from docker
_OBJDUMP := $(or $(shell command -v $(PREFIX)objdump || command -v gobjdump),objdump)
OBJDUMP ?= $(_OBJDUMP)
GCC_VERSION := $(shell $(CC) -dumpversion | cut -d . -f 1)
# -fmacro-prefix-map requires GCC 8
ifneq (8, $(firstword $(shell echo 8 $(GCC_VERSION) | tr ' ' '\n' | sort -n))))
OPTIONAL_CFLAGS_BLACKLIST += -fmacro-prefix-map=$(RIOTBASE)/=
endif
# We use GDB for debugging
include $(RIOTMAKE)/tools/gdb.inc.mk