--- a/pcmu2efr/Makefile	Sun May 12 00:56:42 2024 +0000
+++ b/pcmu2efr/Makefile	Sun May 12 03:06:12 2024 +0000
@@ -1,8 +1,10 @@
 CC=	gcc
 CFLAGS=	-O2
-PROGS=	amrefr-out stdefr-diff stdefr-out
+PROGS=	amrefr-out dhf-check stdefr-diff stdefr-out
 
 AMREFR_OBJS=	amrefr-out.o gen-amrefr.o gen160.o seqsyncu.o ulaw-expand.o
+DHF_CHECK_OBJS=	dhf-check.o gen-amrefr.o gen-efr.o gen160.o seqsyncu.o \
+		ulaw-expand.o
 STDEFR_OBJS=	gen-efr.o gen160.o seqsyncu.o stdefr-out.o ulaw-expand.o
 STDEFRD_OBJS=	gen-efr.o gen160.o seqsyncu.o stdefr-diff.o ulaw-expand.o
 
@@ -11,6 +13,9 @@
 amrefr-out:	${AMREFR_OBJS}
 	${CC} ${CFLAGS} -o $@ ${AMREFR_OBJS} -lgsmefr -ltwamr
 
+dhf-check:	${DHF_CHECK_OBJS}
+	${CC} ${CFLAGS} -o $@ ${DHF_CHECK_OBJS} -lgsmefr -ltwamr
+
 stdefr-diff:	${STDEFRD_OBJS}
 	${CC} ${CFLAGS} -o $@ ${STDEFRD_OBJS} -lgsmefr