build: Conditionally build and test iirfilter

configure

@@ -1548,6 +1548,7 @@ CONFIG_EXTRA="
     huffyuvdsp
     huffyuvencdsp
     idctdsp
+    iirfilter
     intrax8
     lgplv3
     lpc
@@ -1720,7 +1721,7 @@ mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
 
 # decoders / encoders
 aac_decoder_select="mdct sinewin"
-aac_encoder_select="audio_frame_queue mdct sinewin"
+aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
 aac_latm_decoder_select="aac_decoder aac_latm_parser"
 ac3_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"

libavcodec/Makefile

@@ -54,6 +54,7 @@ OBJS-$(CONFIG_HUFFYUVDSP)              += huffyuvdsp.o
 OBJS-$(CONFIG_HUFFYUVENCDSP)           += huffyuvencdsp.o
 OBJS-$(CONFIG_IDCTDSP)                 += idctdsp.o faanidct.o          \
                                           simple_idct.o jrevdct.o
+OBJS-$(CONFIG_IIRFILTER)               += iirfilter.o
 OBJS-$(CONFIG_INTRAX8)                 += intrax8.o intrax8dsp.o
 OBJS-$(CONFIG_LIBXVID)                 += libxvid_rc.o
 OBJS-$(CONFIG_LPC)                     += lpc.o
@@ -93,8 +94,7 @@ OBJS-$(CONFIG_AAC_DECODER)             += aacdec.o aactab.o aacsbr.o aacps.o \
                                           sbrdsp.o aacpsdsp.o
 OBJS-$(CONFIG_AAC_ENCODER)             += aacenc.o aaccoder.o    \
                                           aacpsy.o aactab.o      \
-                                          psymodel.o iirfilter.o \
-                                          mpeg4audio.o kbdwin.o
+                                          psymodel.o mpeg4audio.o kbdwin.o
 OBJS-$(CONFIG_AASC_DECODER)            += aasc.o msrledec.o
 OBJS-$(CONFIG_AC3_DECODER)             += ac3dec.o ac3dec_data.o ac3.o kbdwin.o
 OBJS-$(CONFIG_AC3_ENCODER)             += ac3enc_float.o ac3enc.o ac3tab.o \
@@ -715,9 +715,10 @@ TESTPROGS = dct                                                         \
             fft                                                         \
             fft-fixed                                                   \
             golomb                                                      \
-            iirfilter                                                   \
             rangecoder                                                  \
 
+TESTPROGS-$(CONFIG_IIRFILTER)             += iirfilter
+
 TESTOBJS = dctref.o
 
 HOSTPROGS = aac_tablegen                                                \

tests/fate/libavcodec.mak

@@ -9,7 +9,7 @@ fate-idct8x8: CMD = run libavcodec/dct-test -i
 fate-idct8x8: CMP = null
 fate-idct8x8: REF = /dev/null
 
-FATE_LIBAVCODEC-yes += fate-iirfilter
+FATE_LIBAVCODEC-$(CONFIG_IIRFILTER) += fate-iirfilter
 fate-iirfilter: libavcodec/iirfilter-test$(EXESUF)
 fate-iirfilter: CMD = run libavcodec/iirfilter-test