diff --git a/tools/lib/api/Makefile b/tools/lib/api/Makefile
index fe1b02c..8806ea7 100644
--- a/tools/lib/api/Makefile
+++ b/tools/lib/api/Makefile
@@ -21,10 +21,10 @@
 
 RM = rm -f
 
-build  := -f $(srctree)/tools/build/Makefile.build dir=. obj
 API_IN := $(OUTPUT)libapi-in.o
 
 export srctree OUTPUT CC LD CFLAGS V
+include $(srctree)/tools/build/Makefile.include
 
 all: $(LIBFILE)
 
diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile
index e630f9f..c66ade68 100644
--- a/tools/lib/bpf/Makefile
+++ b/tools/lib/bpf/Makefile
@@ -124,7 +124,7 @@
 MAKEOVERRIDES=
 
 export srctree OUTPUT CC LD CFLAGS V
-build := -f $(srctree)/tools/build/Makefile.build dir=. obj
+include $(srctree)/tools/build/Makefile.include
 
 BPF_IN    := $(OUTPUT)libbpf-in.o
 LIB_FILE := $(addprefix $(OUTPUT),$(LIB_FILE))
diff --git a/tools/lib/lockdep/Makefile b/tools/lib/lockdep/Makefile
index 18ffccf..d12081d 100644
--- a/tools/lib/lockdep/Makefile
+++ b/tools/lib/lockdep/Makefile
@@ -94,7 +94,7 @@
 endif
 
 export srctree OUTPUT CC LD CFLAGS V
-build := -f $(srctree)/tools/build/Makefile.build dir=. obj
+include $(srctree)/tools/build/Makefile.include
 
 do_compile_shared_library =			\
 	($(print_shared_lib_compile)		\