Index: head/sys/dev/bhnd/tools/nvram_map_gen.sh
===================================================================
--- head/sys/dev/bhnd/tools/nvram_map_gen.sh	(revision 299691)
+++ head/sys/dev/bhnd/tools/nvram_map_gen.sh	(revision 299692)
@@ -1,12 +1,12 @@
 #!/bin/sh
 
 # Use C locale to ensure AWK string comparisons always produce
 # a stable sort order.
 
 # $FreeBSD$
 
 BHND_TOOLDIR="$(dirname $0)/"
 
 LC_ALL=C; export LC_ALL
 
-"$BHND_TOOLDIR/nvram_map_gen.awk" $@
+"${AWK:-/usr/bin/awk}" -f "$BHND_TOOLDIR/nvram_map_gen.awk" $@