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-rw-r--r--usr/Makefile3
-rw-r--r--usr/include/Makefile4
2 files changed, 4 insertions, 3 deletions
diff --git a/usr/Makefile b/usr/Makefile
index 6a89eb019275..e6f7cb2f81db 100644
--- a/usr/Makefile
+++ b/usr/Makefile
@@ -11,6 +11,9 @@ datafile_y = initramfs_data.cpio$(suffix_y)
datafile_d_y = .$(datafile_y).d
AFLAGS_initramfs_data.o += -DINITRAMFS_IMAGE="usr/$(datafile_y)"
+# clean rules do not have CONFIG_INITRAMFS_COMPRESSION. So clean up after all
+# possible compression formats.
+clean-files += initramfs_data.cpio*
# Generate builtin.o based on initramfs_data.o
obj-$(CONFIG_BLK_DEV_INITRD) := initramfs_data.o
diff --git a/usr/include/Makefile b/usr/include/Makefile
index 379cc5abc162..c9449aaf438d 100644
--- a/usr/include/Makefile
+++ b/usr/include/Makefile
@@ -114,6 +114,4 @@ header-test-y += $(filter-out $(header-test-), \
$(patsubst $(obj)/%,%, $(wildcard \
$(addprefix $(obj)/, *.h */*.h */*/*.h */*/*/*.h))))
-# For GNU Make <= 4.2.1, $(wildcard $(obj)/*/) matches to not only directories
-# but also regular files. Use $(filter %/, ...) just in case.
-clean-dirs += $(patsubst $(obj)/%/,%,$(filter %/, $(wildcard $(obj)/*/)))
+clean-files += $(filter-out Makefile, $(notdir $(wildcard $(obj)/*)))