1 files changed, 47 insertions, 0 deletions
diff --git a/util/sconfig/Makefile.mk b/util/sconfig/Makefile.mk
new file mode 100644
index 0000000000..c3da29d199
--- /dev/null
+++ b/util/sconfig/Makefile.mk
@@ -0,0 +1,47 @@
+## SPDX-License-Identifier: GPL-2.0-only
+sconfigobj :=
+sconfigobj += lex.yy.o
+sconfigobj += sconfig.tab.o
+sconfigobj += main.o
+
+SCONFIGFLAGS += -I$(top)/util/sconfig -I$(objutil)/sconfig
+SCONFIGFLAGS += -I$(top)/src/commonlib/include -I$(top)/src/commonlib/bsd/include
+
+$(objutil)/sconfig:
+	mkdir -p $@
+
+$(objutil)/sconfig/.generated: $(objutil)/sconfig
+	touch $@
+
+$(objutil)/sconfig/%.o: util/sconfig/%.c | $(objutil)/sconfig/.generated
+	printf "    HOSTCC     $(subst $(obj)/,,$(@))\n"
+	$(HOSTCC) $(SCONFIGFLAGS) $(HOSTCFLAGS) -c -o $@ $<
+
+$(objutil)/sconfig/%.o: $(objutil)/sconfig/%.c
+	printf "    HOSTCC     $(subst $(obj)/,,$(@))\n"
+	$(HOSTCC) $(SCONFIGFLAGS) $(HOSTCFLAGS) -c -o $@ $<
+
+ifeq ($(CONFIG_UTIL_GENPARSER),y)
+$(top)/util/sconfig/lex.yy.c_shipped: $(top)/util/sconfig/sconfig.l
+	printf "    FLEX       $(subst $(top)/,,$(@))\n"
+	flex -L -o $@ $<
+
+# the .c rule also creates .h
+$(top)/util/sconfig/sconfig.tab.h_shipped: $(top)/util/sconfig/sconfig.tab.c_shipped
+$(top)/util/sconfig/sconfig.tab.c_shipped: $(top)/util/sconfig/sconfig.y
+	printf "    BISON      $(subst $(top)/,,$(@))\n"
+	bison -l --defines=$(top)/util/sconfig/sconfig.tab.h_shipped -o $@ $<
+
+endif
+
+$(objutil)/sconfig/lex.yy.o: $(objutil)/sconfig/sconfig.tab.h
+
+$(objutil)/sconfig/%: $(top)/util/sconfig/%_shipped
+	mkdir -p $(dir $@)
+	cp $< $@
+
+$(objutil)/sconfig/sconfig: $(addprefix $(objutil)/sconfig/,$(sconfigobj))
+	printf "    HOSTCC     $(subst $(obj)/,,$(@)) (link)\n"
+	$(HOSTCC) $(SCONFIGFLAGS) -o $@ $(addprefix $(objutil)/sconfig/,$(sconfigobj))
+
+$(addprefix $(objutil)/sconfig/,$(sconfigobj)) : $(objutil)/sconfig/sconfig.tab.h $(objutil)/sconfig/sconfig.tab.c $(objutil)/sconfig/lex.yy.c