build: Add separate hidden config option for the intrax8 code

This allows for slightly cleaner dependency specification.

configure

@@ -1455,6 +1455,7 @@ CONFIG_EXTRA="
     h264qpel
     hpeldsp
     huffman
+    intrax8
     lgplv3
     lpc
     mpegaudio
@@ -1764,7 +1765,7 @@ twinvq_decoder_select="mdct lsp sinewin"
 utvideo_decoder_select="dsputil"
 utvideo_encoder_select="dsputil huffman"
 vble_decoder_select="dsputil"
-vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
+vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel intrax8"
 vc1image_decoder_select="vc1_decoder"
 vorbis_decoder_select="mdct"
 vorbis_encoder_select="mdct"
@@ -1784,7 +1785,7 @@ wmav2_encoder_select="mdct sinewin"
 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
 wmv1_decoder_select="h263_decoder"
 wmv1_encoder_select="h263_encoder"
-wmv2_decoder_select="h263_decoder videodsp"
+wmv2_decoder_select="h263_decoder intrax8 videodsp"
 wmv2_encoder_select="h263_encoder"
 wmv3_decoder_select="vc1_decoder"
 wmv3image_decoder_select="wmv3_decoder"

libavcodec/Makefile

@@ -46,6 +46,7 @@ OBJS-$(CONFIG_H264PRED)                += h264pred.o
 OBJS-$(CONFIG_H264QPEL)                += h264qpel.o
 OBJS-$(CONFIG_HPELDSP)                 += hpeldsp.o
 OBJS-$(CONFIG_HUFFMAN)                 += huffman.o
+OBJS-$(CONFIG_INTRAX8)                 += intrax8.o intrax8dsp.o
 OBJS-$(CONFIG_LIBXVID)                 += libxvid_rc.o
 OBJS-$(CONFIG_LPC)                     += lpc.o
 OBJS-$(CONFIG_LSP)                     += lsp.o
@@ -376,8 +377,7 @@ OBJS-$(CONFIG_V210X_DECODER)           += v210x.o
 OBJS-$(CONFIG_VB_DECODER)              += vb.o
 OBJS-$(CONFIG_VBLE_DECODER)            += vble.o
 OBJS-$(CONFIG_VC1_DECODER)             += vc1dec.o vc1.o vc1data.o vc1dsp.o \
-                                          msmpeg4dec.o msmpeg4.o msmpeg4data.o \
-                                          intrax8.o intrax8dsp.o
+                                          msmpeg4dec.o msmpeg4.o msmpeg4data.o
 OBJS-$(CONFIG_VCR1_DECODER)            += vcr1.o
 OBJS-$(CONFIG_VMDAUDIO_DECODER)        += vmdav.o
 OBJS-$(CONFIG_VMDVIDEO_DECODER)        += vmdav.o
@@ -408,8 +408,7 @@ OBJS-$(CONFIG_WMAVOICE_DECODER)        += wmavoice.o \
                                           acelp_vectors.o acelp_filters.o
 OBJS-$(CONFIG_WMV1_DECODER)            += msmpeg4dec.o msmpeg4.o msmpeg4data.o
 OBJS-$(CONFIG_WMV2_DECODER)            += wmv2dec.o wmv2.o wmv2dsp.o \
-                                          msmpeg4dec.o msmpeg4.o msmpeg4data.o \
-                                          intrax8.o intrax8dsp.o
+                                          msmpeg4dec.o msmpeg4.o msmpeg4data.o
 OBJS-$(CONFIG_WMV2_ENCODER)            += wmv2enc.o wmv2.o wmv2dsp.o \
                                           msmpeg4.o msmpeg4enc.o msmpeg4data.o
 OBJS-$(CONFIG_WNV1_DECODER)            += wnv1.o