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Makefile: Fix linker error

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Instantiation of the static singleton instance thermalManager in general
requires locking, but we know its safe to do without.

Add -fno-threadsafe-statics to avoid using locking primitives, which
result in linking errors:
	undefined reference to `__cxa_guard_acquire'
	undefined reference to `__cxa_guard_release'

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
This commit is contained in:
Stefan Brüns 2017-03-08 04:55:31 +01:00
parent 6caf0830ae
commit ddecc1441d
1 changed files with 1 additions and 1 deletions
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Marlin/Makefile
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@ -393,7 +393,7 @@ ifneq ($(HARDWARE_MOTHERBOARD),)
CTUNING += -DMOTHERBOARD=${HARDWARE_MOTHERBOARD}
endif
#CEXTRA = -Wa,-adhlns=$(<:.c=.lst)
CEXTRA = -fno-use-cxa-atexit
CEXTRA = -fno-use-cxa-atexit -fno-threadsafe-statics
CFLAGS := $(CDEBUG) $(CDEFS) $(CINCS) -O$(OPT) $(CWARN) $(CEXTRA) $(CTUNING) $(CSTANDARD)
CXXFLAGS := $(CDEFS) $(CINCS) -O$(OPT) -Wall $(CEXTRA) $(CTUNING) $(CXXSTANDARD)