diff -r 7129b977c4af -r 01cc48ed67f3 make/common/MakeBase.gmk
--- a/make/common/MakeBase.gmk	Fri May 04 11:00:26 2018 +0100
+++ b/make/common/MakeBase.gmk	Wed May 16 15:52:51 2018 -0700
@@ -446,4 +446,51 @@
 
 ################################################################################
 
+define AddFileToCopy
+  # Helper macro for SetupCopyFiles
+  # 1 : Source file
+  # 2 : Dest file
+  # 3 : Variable to add targets to
+  # 4 : Macro to call for copy operation
+  $2: $1
+	$(ECHO) $(LOG_INFO) Copying $$(patsubst $(OUTPUT_ROOT)/%,%,$$@)
+	$$($$(strip $4))
+
+  $3 += $2
+endef
+
+define SetupCopyFiles
+  # param 1 is for example COPY_MYFILES
+  # param 2,3,4,5 are named args.
+  #   SRC     : Source root dir (defaults to dir of first file)
+  #   DEST    : Dest root dir
+  #   FILES   : List of files to copy with absolute paths, or path relative to SRC.
+  #             Must be in SRC.
+  #   FLATTEN : Set to flatten the directory structure in the DEST dir.
+  #   MACRO   : Optionally override the default macro used for making the copy.
+  #             Default is 'install-file'
+  $(foreach i,2 3 4 5 6, $(if $($i),$1_$(strip $($i)))$(NEWLINE))
+  $(call LogSetupMacroEntry,SetupCopyFiles($1),$2,$3,$4,$5,$6)
+  $(if $(7),$(error Internal makefile error: Too many arguments to SetupCopyFiles))
+
+  ifeq ($$($1_MACRO), )
+    $1_MACRO := install-file
+  endif
+
+  # Default SRC to the dir of the first file.
+  ifeq ($$($1_SRC), )
+    $1_SRC := $$(dir $$(firstword $$($1_FILES)))
+  endif
+
+  # Remove any trailing slash from SRC
+  $1_SRC := $$(patsubst %/,%,$$($1_SRC))
+
+  $$(foreach f, $$(patsubst $$($1_SRC)/%,%,$$($1_FILES)), \
+      $$(eval $$(call AddFileToCopy, $$($1_SRC)/$$f, \
+      $$($1_DEST)/$$(if $$($1_FLATTEN),$$(notdir $$f),$$f), $1, $$($1_MACRO))))
+
+endef
+
+################################################################################
+
 endif # _MAKEBASE_GMK