diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 0925e9606b..06d426b680 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -459,7 +459,6 @@ OBJS-$(CONFIG_VC1_DXVA2_HWACCEL)       += dxva2_vc1.o
 OBJS-$(CONFIG_VC1_VAAPI_HWACCEL)       += vaapi_vc1.o
 OBJS-$(CONFIG_VC1_VDPAU_HWACCEL)       += vdpau_vc1.o
 OBJS-$(CONFIG_VCR1_DECODER)            += vcr1.o
-OBJS-$(CONFIG_VCR1_ENCODER)            += vcr1.o
 OBJS-$(CONFIG_VMDAUDIO_DECODER)        += vmdav.o
 OBJS-$(CONFIG_VMDVIDEO_DECODER)        += vmdav.o
 OBJS-$(CONFIG_VMNC_DECODER)            += vmnc.o
diff --git a/libavformat/rtpdec.c b/libavformat/rtpdec.c
index 0cfb74f175..597b8040a3 100644
--- a/libavformat/rtpdec.c
+++ b/libavformat/rtpdec.c
@@ -258,7 +258,7 @@ int ff_rtp_check_and_send_back_rr(RTPDemuxContext *s, URLContext *fd,
     uint32_t extended_max;
     uint32_t expected_interval;
     uint32_t received_interval;
-    uint32_t lost_interval;
+    int32_t  lost_interval;
     uint32_t expected;
     uint32_t fraction;