[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>

diff --git a/src/Makefile.housekeeping b/src/Makefile.housekeeping
index 6e9178a12205cac23ed69894c0aca94ac0c922c8..4dfaf7aba02b49a667f430f59429feee6862361d 100644 (file)
--- a/src/Makefile.housekeeping
+++ b/src/Makefile.housekeeping
@@ -207,6 +207,7 @@ endif
 ifeq ($(C),1)
 export REAL_CC := $(CC)
 CC := cgcc
+CFLAGS += -Wno-decl
 endif
 
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