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make: use -std=c99 as default

pr/spi.typo
Kaspar Schleiser 6 years ago
parent
commit
5447a434e7
  1. 9
      Makefile.cflags

9
Makefile.cflags

@ -1,13 +1,8 @@
# Test if the input language was specified externally.
# Otherwise test if the compiler unterstands the "-std=gnu99" flag, and use it if so.
# Otherwise test if the compiler unterstands the "-std=c99" flag, and use it if so.
ifeq ($(filter -std=%,$(CFLAGS)),)
ifeq ($(shell $(CC) -std=gnu99 -E - 2>/dev/null >/dev/null </dev/null ; echo $$?),0)
CFLAGS += -std=gnu99
else
ifeq ($(shell $(CC) -std=c99 -E - 2>/dev/null >/dev/null </dev/null ; echo $$?),0)
CFLAGS += -std=c99
endif
ifeq ($(shell $(CC) -std=c99 -E - 2>/dev/null >/dev/null </dev/null ; echo $$?),0)
CFLAGS += -std=c99
endif
endif

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