[build] Allow sparse to be invoked via "make C=1"

Signed-off-by: Michael Brown <mcb30@ipxe.org>

diff --git a/src/Makefile.housekeeping b/src/Makefile.housekeeping
index 99de917ab87673f329c59c364e8945bf13c050fe..6e9178a12205cac23ed69894c0aca94ac0c922c8 100644 (file)
--- a/src/Makefile.housekeeping
+++ b/src/Makefile.housekeeping
@@ -200,6 +200,15 @@ Q := @
 QM := @
 endif
 
+###############################################################################
+#
+# Checker
+#
+ifeq ($(C),1)
+export REAL_CC := $(CC)
+CC := cgcc
+endif
+
 ###############################################################################
 #
 # Set BIN according to whatever was specified on the command line as