--- a/make/autoconf/spec.gmk.in	Fri Nov 15 16:10:29 2019 +0100
+++ b/make/autoconf/spec.gmk.in	Wed Nov 06 18:06:36 2019 +0100
@@ -767,6 +767,7 @@
 XCODEBUILD=@XCODEBUILD@
 DTRACE := @DTRACE@
 FIXPATH:=@FIXPATH@
+ULIMIT:=@ULIMIT@
 
 TAR_TYPE:=@TAR_TYPE@
 TAR_CREATE_EXTRA_PARAM:=@TAR_CREATE_EXTRA_PARAM@