make/common/MakeBase.gmk

*** 910,919 ****
--- 910,930 ----
    # Use printf to get consistent behavior on all platforms.
    WriteFile = \
        $(shell $(PRINTF) "%s" $(call ShellQuote, $1) > $2)
  endif
  
+ # Param 1 - Text to write
+ # Param 2 - File to write to
+ ifeq ($(HAS_FILE_FUNCTION), true)
+   AppendFile = \
+       $(file >>$2,$(strip $1))
+ else
+   # Use printf to get consistent behavior on all platforms.
+   AppendFile = \
+       $(shell $(PRINTF) "%s" $(call ShellQuote, $1) >> $2)
+ endif
+ 
  ################################################################################
  # DependOnVariable
  #
  # This macro takes a variable name and puts the value in a file only if the
  # value has changed since last. The name of the file is returned. This can be