--- old/common/autoconf/spec.gmk.in	2016-03-14 18:58:05.542832576 +0000
+++ new/common/autoconf/spec.gmk.in	2016-03-14 18:58:05.454834057 +0000
@@ -343,6 +343,9 @@
 WARNINGS_AS_ERRORS := @WARNINGS_AS_ERRORS@
 
 CFLAGS_CCACHE:=@CFLAGS_CCACHE@
+NO_NULL_POINTER_CHECK_FLAG=@NO_NULL_POINTER_CHECK_CFLAG@
+NO_LIFETIME_DSE_CFLAG=@NO_LIFETIME_DSE_CFLAG@
+CXXSTD_CXXFLAG=@CXXSTD_CXXFLAG@
 
 # Tools that potentially need to be cross compilation aware.
 CC:=@FIXPATH@ @CCACHE@ @ICECC@ @CC@