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sys/log: check that one and only one backend

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This commit is contained in:
Leandro Lanzieri 2021-11-30 12:24:43 +01:00
parent 81b93c9b95
commit dadaace394
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1 changed files with 12 additions and 0 deletions
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12
sys/log/Makefile.include
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@ -1,3 +1,15 @@
# check that one, and only one log backend is being used
USED_LOG_BACKENDS := $(sort $(filter log_%,$(USEMODULE)))
ifeq (0,$(words $(USED_LOG_BACKENDS)))
$(error The log module is being used but no backend is provided.)
else ifeq (1,$(words $(USED_LOG_BACKENDS)))
# only one backend is provided, this is correct
else
$(info Only one log backend can be used at a time.)
$(error Currently selecting: $(USED_LOG_BACKENDS))
endif
ifneq (,$(filter log_printfnoformat,$(USEMODULE)))
USEMODULE_INCLUDES += $(RIOTBASE)/sys/log/log_printfnoformat
endif