--- zzzz-none-000/linux-4.1.52/scripts/Makefile.headersinst	2018-05-28 02:26:45.000000000 +0000
+++ bcm63-7530ax-731/linux-4.1.52/scripts/Makefile.headersinst	2022-03-02 11:37:14.000000000 +0000
@@ -23,7 +23,7 @@
 
 include scripts/Kbuild.include
 
-installdir    := $(INSTALL_HDR_PATH)/$(subst uapi/,,$(_dst))
+installdir    := $(INSTALL_HDR_PATH)/$(subst /uapi,,$(_dst))
 
 header-y      := $(sort $(header-y))
 subdirs       := $(patsubst %/,%,$(filter %/, $(header-y)))
@@ -107,7 +107,7 @@
 
 targets += $(install-file)
 $(install-file): scripts/headers_install.sh $(input-files1) $(input-files2) $(input-files3) FORCE
-	$(if $(unwanted),$(call cmd,remove),)
+	$(if $(subst include/uapi,,$(_dst)),$(if $(unwanted),$(call cmd,remove),))
 	$(if $(wildcard $(dir $@)),,$(shell mkdir -p $(dir $@)))
 	$(call if_changed,install)