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[build] Use -Wno-decl when running sparse

Linker table entries must be non-static in order to avoid being
completely optimised away by some versions of gcc.  Use -Wno-decl to
prevent sparse from warning about these, since the alternative would
be to litter the code with otherwise unnecessary "extern"
declarations.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
tags/v1.20.1
Michael Brown hace 11 años
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      src/Makefile.housekeeping

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@@ -207,6 +207,7 @@ endif
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 ifeq ($(C),1)
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 export REAL_CC := $(CC)
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 CC := cgcc
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+CFLAGS += -Wno-decl
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 endif
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 ###############################################################################

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