compile success for libsepl in kernel

kernel/libsepol/tests/Makefile

@@ -0,0 +1,60 @@
+ENV ?= env
+M4 ?= m4
+MKDIR ?= mkdir
+EXE ?= libsepol-tests
+
+CFLAGS += -g3 -gdwarf-2 -O0 -Wall -W -Wundef -Wmissing-noreturn -Wmissing-format-attribute -Wno-unused-parameter -Werror
+
+# Statically link libsepol on the assumption that we are going to
+# be testing internal functions.
+LIBSEPOL := ../src/libsepol.a
+
+# In order to load source policies we need to link in the checkpolicy/checkmodule parser and util code.
+# This is less than ideal, but it makes the tests easier to maintain by allowing source policies
+# to be loaded directly.
+CHECKPOLICY := ../../checkpolicy/
+override CPPFLAGS += -I../include/ -I$(CHECKPOLICY)
+
+# test program object files
+objs := $(patsubst %.c,%.o,$(sort $(wildcard *.c)))
+parserobjs := $(CHECKPOLICY)queue.o $(CHECKPOLICY)y.tab.o \
+	$(CHECKPOLICY)parse_util.o $(CHECKPOLICY)lex.yy.o \
+	$(CHECKPOLICY)policy_define.o $(CHECKPOLICY)module_compiler.o
+
+# test policy pieces
+m4support := $(wildcard policies/support/*.spt)
+testsuites := $(wildcard policies/test-*)
+policysrc := $(foreach path,$(testsuites),$(wildcard $(path)/*.conf))
+stdpol := $(addsuffix .std,$(policysrc))
+mlspol := $(addsuffix .mls,$(policysrc))
+policies := $(stdpol) $(mlspol)
+
+all: $(EXE) $(policies)
+policies: $(policies)
+
+$(EXE): $(objs) $(parserobjs) $(LIBSEPOL)
+	$(CC) $(LDFLAGS) $(objs) $(parserobjs) -lcunit $(LIBSEPOL) -o $@
+
+%.conf.std: $(m4support) %.conf
+	$(M4) $(M4PARAMS) $^ > $@
+
+%.conf.mls: $(m4support) %.conf
+	$(M4) $(M4PARAMS) -D enable_mls $^ > $@
+
+clean: 
+	rm -f $(objs) $(EXE)
+	rm -f $(policies)
+	rm -f policies/test-downgrade/policy.hi policies/test-downgrade/policy.lo
+
+# mkdir is run in a clean environment created by env -i to avoid failing under ASan with:
+#
+#   ASan runtime does not come first in initial library list;
+#   you should either link runtime to your application or manually preload it with LD_PRELOAD
+#
+# when the source code is built with ASan
+test: $(EXE) $(policies)
+	$(ENV) -i $(MKDIR) -p policies/test-downgrade
+	../../checkpolicy/checkpolicy -M policies/test-cond/refpolicy-base.conf -o policies/test-downgrade/policy.hi	
+	./$(EXE)
+
+.PHONY: all policies clean test