Documentation/DocBook/media/Makefile

   1 ###
   2 # Media build rules - Auto-generates media contents/indexes and *.h xml's
   3 #
   4
   5 SHELL=/bin/bash
   6
   7 MEDIA_OBJ_DIR=$(objtree)/Documentation/DocBook/
   8 MEDIA_SRC_DIR=$(srctree)/Documentation/DocBook/media
   9
  10 MEDIA_TEMP =  media-entities.tmpl \
  11               media-indices.tmpl \
  12               videodev2.h.xml \
  13               v4l2.xml \
  14               audio.h.xml \
  15               ca.h.xml \
  16               dmx.h.xml \
  17               frontend.h.xml \
  18               net.h.xml \
  19               video.h.xml \
  20
  21 IMGFILES := $(patsubst %.b64,%, $(notdir $(shell ls $(MEDIA_SRC_DIR)/*.b64)))
  22 OBJIMGFILES := $(addprefix $(MEDIA_OBJ_DIR)/, $(IMGFILES))
  23 GENFILES := $(addprefix $(MEDIA_OBJ_DIR)/, $(MEDIA_TEMP))
  24
  25 PHONY += cleanmediadocs
  26
  27 cleanmediadocs:
  28         -@rm -f `find $(MEDIA_OBJ_DIR) -type l` $(GENFILES) $(OBJIMGFILES) 2>/dev/null
  29
  30 $(obj)/media_api.xml: $(GENFILES) FORCE
  31
  32 #$(MEDIA_OBJ_DIR)/media_api.html: $(MEDIA_OBJ_DIR)/media_api.xml
  33 #$(MEDIA_OBJ_DIR)/media_api.pdf: $(MEDIA_OBJ_DIR)/media_api.xml
  34 #$(MEDIA_OBJ_DIR)/media_api.ps: $(MEDIA_OBJ_DIR)/media_api.xml
  35
  36 V4L_SGMLS = \
  37         $(shell ls $(MEDIA_SRC_DIR)/v4l/*.xml|perl -ne 'print "$$1 " if (m,.*/(.*)\n,)') \
  38         capture.c.xml \
  39         keytable.c.xml \
  40         v4l2grab.c.xml
  41
  42 DVB_SGMLS = \
  43         $(shell ls $(MEDIA_SRC_DIR)/dvb/*.xml|perl -ne 'print "$$1 " if (m,.*/(.*)\n,)')
  44
  45 MEDIA_SGMLS =  $(addprefix ./,$(V4L_SGMLS)) $(addprefix ./,$(DVB_SGMLS)) $(addprefix ./,$(MEDIA_TEMP))
  46
  47 FUNCS = \
  48         close \
  49         ioctl \
  50         mmap \
  51         munmap \
  52         open \
  53         poll \
  54         read \
  55         select \
  56         write \
  57
  58 IOCTLS = \
  59         $(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/videodev2.h) \
  60         $(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/dvb/audio.h) \
  61         $(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/dvb/ca.h) \
  62         $(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/dvb/dmx.h) \
  63         $(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/dvb/frontend.h) \
  64         $(shell perl -ne 'print "$$1 " if /\#define\s+([A-Z][^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/dvb/net.h) \
  65         $(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/dvb/video.h) \
  66         $(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/media.h) \
  67         $(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/v4l2-subdev.h) \
  68
  69 DEFINES = \
  70         $(shell perl -ne 'print "$$1 " if /\#define\s+(DTV_[^\s]+)\s+/' $(srctree)/include/uapi/linux/dvb/frontend.h) \
  71
  72 TYPES = \
  73         $(shell perl -ne 'print "$$1 " if /^typedef\s+.*\s+(\S+)\;/' $(srctree)/include/uapi/linux/videodev2.h) \
  74         $(shell perl -ne 'print "$$1 " if /^typedef\s+.*\s+(\S+)\;/' $(srctree)/include/uapi/linux/dvb/frontend.h)
  75
  76 ENUMS = \
  77         $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' \
  78                 $(srctree)/include/uapi/linux/videodev2.h \
  79                 $(srctree)/include/uapi/linux/dvb/audio.h \
  80                 $(srctree)/include/uapi/linux/dvb/ca.h \
  81                 $(srctree)/include/uapi/linux/dvb/dmx.h \
  82                 $(srctree)/include/uapi/linux/dvb/frontend.h \
  83                 $(srctree)/include/uapi/linux/dvb/net.h \
  84                 $(srctree)/include/uapi/linux/dvb/video.h \
  85                 $(srctree)/include/uapi/linux/media.h \
  86                 $(srctree)/include/uapi/linux/v4l2-mediabus.h \
  87                 $(srctree)/include/uapi/linux/v4l2-subdev.h)
  88
  89 ENUM_DEFS = \
  90         $(shell perl -e 'open IN,"cat @ARGV| cpp -fpreprocessed |"; while (<IN>) { if ($$enum) {print "$$1\n" if (/\s*([A-Z]\S+)\b/); } $$enum = 0 if ($$enum && /^\}/); $$enum = 1 if(/^\s*enum\s/); }; close IN;' \
  91                 $(srctree)/include/uapi/linux/dvb/dmx.h \
  92                 $(srctree)/include/uapi/linux/dvb/frontend.h)
  93
  94 STRUCTS = \
  95         $(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/videodev2.h) \
  96         $(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s\{]+)\s*/)' $(srctree)/include/uapi/linux/dvb/audio.h) \
  97         $(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s]+)\s+/)' $(srctree)/include/uapi/linux/dvb/ca.h) \
  98         $(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s]+)\s+/)' $(srctree)/include/uapi/linux/dvb/dmx.h) \
  99         $(shell perl -ne 'print "$$1 " if (!/dtv\_cmds\_h/ && /^struct\s+([^\s]+)\s+/)' $(srctree)/include/uapi/linux/dvb/frontend.h) \
 100         $(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s]+)\s+/ && !/_old/)' $(srctree)/include/uapi/linux/dvb/net.h) \
 101         $(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s]+)\s+/)' $(srctree)/include/uapi/linux/dvb/video.h) \
 102         $(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/media.h) \
 103         $(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/v4l2-subdev.h) \
 104         $(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/v4l2-mediabus.h)
 105
 106 ERRORS = \
 107         E2BIG \
 108         EACCES \
 109         EAGAIN \
 110         EBADF \
 111         EBADFD \
 112         EBADR \
 113         EBADRQC \
 114         EBUSY \
 115         ECHILD \
 116         ECONNRESET \
 117         EDEADLK \
 118         EDOM \
 119         EEXIST \
 120         EFAULT \
 121         EFBIG \
 122         EILSEQ \
 123         EINIT \
 124         EINPROGRESS \
 125         EINTR \
 126         EINVAL \
 127         EIO \
 128         EMFILE \
 129         ENFILE \
 130         ENOBUFS \
 131         ENODATA \
 132         ENODEV \
 133         ENOENT \
 134         ENOIOCTLCMD \
 135         ENOMEM \
 136         ENOSPC \
 137         ENOSR \
 138         ENOSYS \
 139         ENOTSUP \
 140         ENOTSUPP \
 141         ENOTTY \
 142         ENXIO \
 143         EOPNOTSUPP \
 144         EOVERFLOW \
 145         EPERM \
 146         EPIPE \
 147         EPROTO \
 148         ERANGE \
 149         EREMOTE \
 150         EREMOTEIO \
 151         ERESTART \
 152         ERESTARTSYS \
 153         ESHUTDOWN \
 154         ESPIPE \
 155         ETIME \
 156         ETIMEDOUT \
 157         EUSERS \
 158         EWOULDBLOCK \
 159         EXDEV \
 160
 161 ESCAPE = \
 162         -e "s/&/\\&amp;/g" \
 163         -e "s/</\\&lt;/g" \
 164         -e "s/>/\\&gt;/g"
 165
 166 FILENAME = \
 167         -e s,"^[^\/]*/",, \
 168         -e s/"\\.xml"// \
 169         -e s/"\\.tmpl"// \
 170         -e s/\\\./-/g \
 171         -e s/"^func-"// \
 172         -e s/"^pixfmt-"// \
 173         -e s/"^vidioc-"//
 174
 175 # Generate references to these structs in videodev2.h.xml.
 176 DOCUMENTED = \
 177         -e "s/\(enum *\)v4l2_mpeg_cx2341x_video_\([a-z]*_spatial_filter_type\)/\1<link linkend=\"\2\">v4l2_mpeg_cx2341x_video_\2<\/link>/g" \
 178         -e "s/\(\(enum\|struct\) *\)\(v4l2_[a-zA-Z0-9_]*\)/\1<link linkend=\"\3\">\3<\/link>/g" \
 179         -e "s/\(V4L2_PIX_FMT_[A-Z0-9_]\+\)\(\s\+v4l2_fourcc\)/<link linkend=\"\1\">\1<\/link>\2/g" \
 180         -e ":a;s/\(linkend=\".*\)_\(.*\">\)/\1-\2/;ta" \
 181         -e "s/v4l2\-mpeg\-vbi\-ITV0/v4l2-mpeg-vbi-itv0-1/g"
 182
 183 DVB_DOCUMENTED = \
 184         -e "s,\(struct\s\+\)\([a-z0-9_]\+\)\(\s\+{\),\1\<link linkend=\"\2\">\2\<\/link\>\3,g" \
 185         -e "s,\(}\s\+\)\([a-z0-9_]\+_t\+\),\1\<link linkend=\"\2\">\2\<\/link\>,g" \
 186         -e "s,\(define\s\+\)\(DTV_[A-Z0-9_]\+\)\(\s\+[0-9]\+\),\1\<link linkend=\"\2\">\2\<\/link\>\3,g" \
 187         -e "s,<link\s\+linkend=\".*\">\(DTV_IOCTL_MAX_MSGS\|dtv_cmds_h\|__.*_old\)<\/link>,\1,g" \
 188         -e ":a;s/\(linkend=\".*\)_\(.*\">\)/\1-\2/;ta" \
 189         -e "s,\(audio-mixer\|audio-karaoke\|audio-status\|ca-slot-info\|ca-descr-info\|ca-caps\|ca-msg\|ca-descr\|ca-pid\|dmx-filter\|dmx-caps\|video-system\|video-highlight\|video-spu\|video-spu-palette\|video-navi-pack\)-t,\1,g" \
 190         -e "s,DTV-ISDBT-LAYER[A-C],DTV-ISDBT-LAYER,g" \
 191         -e "s,\(define\s\+\)\([A-Z0-9_]\+\)\(\s\+_IO\),\1\<link linkend=\"\2\">\2\<\/link\>\3,g" \
 192         -e "s,\(define\s\+\)\(DTV_[A-Z0-9_]\+\)\(\s\+\),\1\<link linkend=\"\2\">\2\<\/link\>\3,g" \
 193         -e "s,<link\s\+linkend=\".*\">\(__.*_OLD\)<\/link>,\1,g" \
 194         -e "s/\(linkend\=\"\)FE_SET_PROPERTY/\1FE_GET_PROPERTY/g" \
 195         -e "s,<link\s\+linkend=\".*\">\(DTV_ISDBS_TS_ID_LEGACY\|DTV_MAX_COMMAND\|DTV_IOCTL_MAX_MSGS\)<\/link>,\1,g" \
 196
 197 #
 198 # Media targets and dependencies
 199 #
 200
 201 install_media_images = \
 202         $(Q)-mkdir $(MEDIA_OBJ_DIR)/media_api; \
 203         cp $(OBJIMGFILES) $(MEDIA_SRC_DIR)/*.svg $(MEDIA_SRC_DIR)/v4l/*.svg $(MEDIA_OBJ_DIR)/media_api
 204
 205 $(MEDIA_OBJ_DIR)/%: $(MEDIA_SRC_DIR)/%.b64
 206         $(Q)base64 -d $< >$@
 207
 208 $(MEDIA_OBJ_DIR)/v4l2.xml: $(OBJIMGFILES)
 209         @$($(quiet)gen_xml)
 210         @(ln -sf `cd $(MEDIA_SRC_DIR) && /bin/pwd`/v4l/*xml $(MEDIA_OBJ_DIR)/)
 211         @(ln -sf `cd $(MEDIA_SRC_DIR) && /bin/pwd`/dvb/*xml $(MEDIA_OBJ_DIR)/)
 212
 213 $(MEDIA_OBJ_DIR)/videodev2.h.xml: $(srctree)/include/uapi/linux/videodev2.h $(MEDIA_OBJ_DIR)/v4l2.xml
 214         @$($(quiet)gen_xml)
 215         @(                                      \
 216         echo "<programlisting>") > $@
 217         @(                                      \
 218         expand --tabs=8 < $< |                  \
 219           sed $(ESCAPE) $(DOCUMENTED) |         \
 220           sed 's/i\.e\./&ie;/') >> $@
 221         @(                                      \
 222         echo "</programlisting>") >> $@
 223
 224 $(MEDIA_OBJ_DIR)/audio.h.xml: $(srctree)/include/uapi/linux/dvb/audio.h $(MEDIA_OBJ_DIR)/v4l2.xml
 225         @$($(quiet)gen_xml)
 226         @(                                      \
 227         echo "<programlisting>") > $@
 228         @(                                      \
 229         expand --tabs=8 < $< |                  \
 230           sed $(ESCAPE) $(DVB_DOCUMENTED) |     \
 231           sed 's/i\.e\./&ie;/') >> $@
 232         @(                                      \
 233         echo "</programlisting>") >> $@
 234
 235 $(MEDIA_OBJ_DIR)/ca.h.xml: $(srctree)/include/uapi/linux/dvb/ca.h $(MEDIA_OBJ_DIR)/v4l2.xml
 236         @$($(quiet)gen_xml)
 237         @(                                      \
 238         echo "<programlisting>") > $@
 239         @(                                      \
 240         expand --tabs=8 < $< |                  \
 241           sed $(ESCAPE) $(DVB_DOCUMENTED) |     \
 242           sed 's/i\.e\./&ie;/') >> $@
 243         @(                                      \
 244         echo "</programlisting>") >> $@
 245
 246 $(MEDIA_OBJ_DIR)/dmx.h.xml: $(srctree)/include/uapi/linux/dvb/dmx.h $(MEDIA_OBJ_DIR)/v4l2.xml
 247         @$($(quiet)gen_xml)
 248         @(                                      \
 249         echo "<programlisting>") > $@
 250         @(                                      \
 251         for ident in $(ENUM_DEFS) ; do          \
 252           entity=`echo $$ident | tr _ -` ;      \
 253           r="$$r s/([^\w\-])$$ident([^\w\-])/\1\&$$entity\;\2/g;";\
 254         done;                                   \
 255         expand --tabs=8 < $< |                  \
 256           sed $(ESCAPE) $(DVB_DOCUMENTED) |     \
 257           sed 's/i\.e\./&ie;/' |                \
 258           perl -ne "$$r print $$_;") >> $@
 259         @(                                      \
 260         echo "</programlisting>") >> $@
 261
 262 $(MEDIA_OBJ_DIR)/frontend.h.xml: $(srctree)/include/uapi/linux/dvb/frontend.h $(MEDIA_OBJ_DIR)/v4l2.xml
 263         @$($(quiet)gen_xml)
 264         @(                                      \
 265         echo "<programlisting>") > $@
 266         @(                                      \
 267         for ident in $(ENUM_DEFS) ; do          \
 268           entity=`echo $$ident | tr _ -` ;      \
 269           r="$$r s/([^\w\-])$$ident([^\w\-])/\1\&$$entity\;\2/g;";\
 270         done;                                   \
 271         expand --tabs=8 < $< |                  \
 272           sed $(ESCAPE) $(DVB_DOCUMENTED) |     \
 273           sed 's/i\.e\./&ie;/' |                \
 274           perl -ne "$$r print $$_;") >> $@
 275         @(                                      \
 276         echo "</programlisting>") >> $@
 277
 278 $(MEDIA_OBJ_DIR)/net.h.xml: $(srctree)/include/uapi/linux/dvb/net.h $(MEDIA_OBJ_DIR)/v4l2.xml
 279         @$($(quiet)gen_xml)
 280         @(                                      \
 281         echo "<programlisting>") > $@
 282         @(                                      \
 283         expand --tabs=8 < $< |                  \
 284           sed $(ESCAPE) $(DVB_DOCUMENTED) |     \
 285           sed 's/i\.e\./&ie;/') >> $@
 286         @(                                      \
 287         echo "</programlisting>") >> $@
 288
 289 $(MEDIA_OBJ_DIR)/video.h.xml: $(srctree)/include/uapi/linux/dvb/video.h $(MEDIA_OBJ_DIR)/v4l2.xml
 290         @$($(quiet)gen_xml)
 291         @(                                      \
 292         echo "<programlisting>") > $@
 293         @(                                      \
 294         expand --tabs=8 < $< |                  \
 295           sed $(ESCAPE) $(DVB_DOCUMENTED) |     \
 296           sed 's/i\.e\./&ie;/') >> $@
 297         @(                                      \
 298         echo "</programlisting>") >> $@
 299
 300 $(MEDIA_OBJ_DIR)/media-entities.tmpl: $(MEDIA_OBJ_DIR)/v4l2.xml
 301         @$($(quiet)gen_xml)
 302         @(                                                              \
 303         echo "<!-- Generated file! Do not edit. -->") >$@
 304         @(                                                              \
 305         echo -e "\n<!-- Functions -->") >>$@
 306         @(                                                              \
 307         for ident in $(FUNCS) ; do                                      \
 308           entity=`echo $$ident | tr _ -` ;                              \
 309           echo "<!ENTITY func-$$entity \"<link"                         \
 310             "linkend='func-$$entity'><function>$$ident()</function></link>\">" \
 311           >>$@ ;                                                        \
 312         done)
 313         @(                                                              \
 314         echo -e "\n<!-- Ioctls -->") >>$@
 315         @(                                                              \
 316         for ident in `echo $(IOCTLS) | sed -e "s,VIDIOC_RESERVED,,"`; do\
 317           entity=`echo $$ident | tr _ -` ;                              \
 318           id=`grep -e "<refname>$$ident" -e "<section id=\"$$ident\"" $$(find $(MEDIA_SRC_DIR) -name *.xml -type f)| sed -r s,"^.*/(.*).xml.*","\1",` ; \
 319           if [ "$$id" != "" ]; then echo "<!ENTITY $$entity \"<link"    \
 320             "linkend='$$id'><constant>$$ident</constant></link>\">"     \
 321           >>$@ ; else                                                   \
 322                 echo "Warning: undocumented ioctl: $$ident. Please document it at the media DocBook!" >&2;      \
 323           fi;                                                           \
 324         done)
 325         @(                                                              \
 326         echo -e "\n<!-- Defines -->") >>$@
 327         @(                                                              \
 328         for ident in $(DEFINES) ; do                                    \
 329           entity=`echo $$ident | tr _ -` ;                              \
 330           echo "<!ENTITY $$entity \"<link"                              \
 331             "linkend='$$entity'><constant>$$ident</constant></link>\">" \
 332           >>$@ ;                                                        \
 333         done)
 334         @(                                                              \
 335         echo -e "\n<!-- Types -->") >>$@
 336         @(                                                              \
 337         for ident in $(TYPES) ; do                                      \
 338           entity=`echo $$ident | tr _ -` ;                              \
 339           echo "<!ENTITY $$entity \"<link"                              \
 340             "linkend='$$entity'>$$ident</link>\">" >>$@ ;               \
 341         done)
 342         @(                                                              \
 343         echo -e "\n<!-- Enums -->") >>$@
 344         @(                                                              \
 345         for ident in $(ENUMS) ; do                                      \
 346           entity=`echo $$ident | sed -e "s/v4l2_mpeg_cx2341x_video_\([a-z]*_spatial_filter_type\)/\1/" | tr _ -` ; \
 347           echo "<!ENTITY $$entity \"enum&nbsp;<link"                    \
 348             "linkend='$$entity'>$$ident</link>\">" >>$@ ;               \
 349         done)
 350         @(                                                              \
 351         echo -e "\n<!-- Enum definitions -->") >>$@
 352         @(                                                              \
 353         for ident in $(ENUM_DEFS) ; do                                  \
 354           entity=`echo $$ident | tr _ -` ;                              \
 355           echo "<!ENTITY $$entity \"<link"                              \
 356             "linkend='$$entity'><constant>$$ident</constant></link>\">" \
 357           >>$@ ;                                                        \
 358         done)
 359         @(                                                              \
 360         echo -e "\n<!-- Structures -->") >>$@
 361         @(                                                              \
 362         for ident in $(STRUCTS) ; do                                    \
 363           entity=`echo $$ident | tr _ - | sed s/v4l2-mpeg-vbi-ITV0/v4l2-mpeg-vbi-itv0-1/g` ; \
 364           echo "<!ENTITY $$entity \"struct&nbsp;<link"                  \
 365             "linkend='$$entity'>$$ident</link>\">" >>$@ ;               \
 366         done)
 367         @(                                                              \
 368         echo -e "\n<!-- Error Codes -->") >>$@
 369         @(                                                              \
 370         for ident in $(ERRORS) ; do                                     \
 371           echo "<!ENTITY $$ident \"<errorcode>$$ident</errorcode>"      \
 372             "error code\">" >>$@ ;                                      \
 373         done)
 374         @(                                                              \
 375         echo -e "\n<!-- Subsections -->") >>$@
 376         @(                                                              \
 377         for file in $(MEDIA_SGMLS) ; do                                 \
 378           entity=`echo "$$file" | sed $(FILENAME) -e s/"^([^-]*)"/sub\1/` ; \
 379           if ! echo "$$file" |                                          \
 380             grep -q -E -e '^(func|vidioc|pixfmt)-' ; then               \
 381             echo "<!ENTITY sub-$$entity SYSTEM \"$$file\">" >>$@ ;      \
 382           fi ;                                                          \
 383         done)
 384         @(                                                              \
 385         echo -e "\n<!-- Function Reference -->") >>$@
 386         @(                                                              \
 387         for file in $(MEDIA_SGMLS) ; do                                 \
 388           if echo "$$file" |                                            \
 389             grep -q -E -e '(func|vidioc|pixfmt)-' ; then                \
 390             entity=`echo "$$file" |sed $(FILENAME)` ;                   \
 391             echo "<!ENTITY $$entity SYSTEM \"$$file\">" >>$@ ;  \
 392           fi ;                                                          \
 393         done)
 394
 395 # Jade can auto-generate a list-of-tables, which includes all structs,
 396 # but we only want data types, all types, and sorted please.
 397 $(MEDIA_OBJ_DIR)/media-indices.tmpl: $(MEDIA_OBJ_DIR)/v4l2.xml
 398         @$($(quiet)gen_xml)
 399         @(                                                              \
 400         echo "<!-- Generated file! Do not edit. -->") >$@
 401         @(                                                              \
 402         echo -e "\n<index><title>List of Types</title>") >>$@
 403         @(                                                              \
 404         for ident in $(TYPES) ; do                                      \
 405           id=`echo $$ident | tr _ -` ;                                  \
 406           echo "<indexentry><primaryie><link"                           \
 407             "linkend='$$id'>$$ident</link></primaryie></indexentry>" >>$@ ; \
 408         done)
 409         @(                                                              \
 410         for ident in $(ENUMS) ; do                                      \
 411           id=`echo $$ident | sed -e "s/v4l2_mpeg_cx2341x_video_\([a-z]*_spatial_filter_type\)/\1/" | tr _ -`; \
 412           echo "<indexentry><primaryie>enum&nbsp;<link"                 \
 413             "linkend='$$id'>$$ident</link></primaryie></indexentry>" >>$@ ; \
 414         done)
 415         @(                                                              \
 416         for ident in $(STRUCTS) ; do                                    \
 417           id=`echo $$ident | tr _ - | sed s/v4l2-mpeg-vbi-ITV0/v4l2-mpeg-vbi-itv0-1/g` ; \
 418           echo "<indexentry><primaryie>struct&nbsp;<link"               \
 419             "linkend='$$id'>$$ident</link></primaryie></indexentry>" >>$@ ; \
 420         done)
 421         @(                                                              \
 422         echo "</index>") >>$@
 423