Documentation/DocBook/Makefile

   1 ###
   2 # This makefile is used to generate the kernel documentation,
   3 # primarily based on in-line comments in various source files.
   4 # See Documentation/kernel-doc-nano-HOWTO.txt for instruction in how
   5 # to document the SRC - and how to read it.
   6 # To add a new book the only step required is to add the book to the
   7 # list of DOCBOOKS.
   8
   9 TMPMEDIA=.tmpmedia
  10
  11 DOCBOOKS := z8530book.xml mcabook.xml device-drivers.xml \
  12             kernel-hacking.xml kernel-locking.xml deviceiobook.xml \
  13             writing_usb_driver.xml networking.xml \
  14             kernel-api.xml filesystems.xml lsm.xml usb.xml kgdb.xml \
  15             gadget.xml libata.xml mtdnand.xml librs.xml rapidio.xml \
  16             genericirq.xml s390-drivers.xml uio-howto.xml scsi.xml \
  17             80211.xml debugobjects.xml sh.xml regulator.xml \
  18             alsa-driver-api.xml writing-an-alsa-driver.xml \
  19             tracepoint.xml $(TMPMEDIA)/media.xml drm.xml
  20
  21 ###
  22 # The build process is as follows (targets):
  23 #              (xmldocs) [by docproc]
  24 # file.tmpl --> file.xml +--> file.ps   (psdocs)   [by db2ps or xmlto]
  25 #                        +--> file.pdf  (pdfdocs)  [by db2pdf or xmlto]
  26 #                        +--> DIR=file  (htmldocs) [by xmlto]
  27 #                        +--> man/      (mandocs)  [by xmlto]
  28
  29
  30 # for PDF and PS output you can choose between xmlto and docbook-utils tools
  31 PDF_METHOD      = $(prefer-db2x)
  32 PS_METHOD       = $(prefer-db2x)
  33
  34
  35 ###
  36 # The targets that may be used.
  37 PHONY += xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs cleandocs mediaprep
  38
  39 BOOKS := $(addprefix $(obj)/,$(DOCBOOKS))
  40 xmldocs: $(BOOKS)
  41 sgmldocs: xmldocs
  42
  43 PS := $(patsubst %.xml, %.ps, $(BOOKS))
  44 psdocs: $(PS)
  45
  46 PDF := $(patsubst %.xml, %.pdf, $(BOOKS))
  47 pdfdocs: $(PDF)
  48
  49 HTML := $(sort $(patsubst %.xml, %.html, $(BOOKS)))
  50 htmldocs: $(HTML)
  51         $(call build_main_index)
  52         $(call build_images)
  53
  54 MAN := $(patsubst %.xml, %.9, $(BOOKS))
  55 mandocs: $(MAN)
  56
  57 installmandocs: mandocs
  58         mkdir -p /usr/local/man/man9/
  59         install Documentation/DocBook/man/*.9.gz /usr/local/man/man9/
  60
  61 ###
  62 #External programs used
  63 KERNELDOC = $(srctree)/scripts/kernel-doc
  64 DOCPROC   = $(objtree)/scripts/docproc
  65
  66 XMLTOFLAGS = -m $(srctree)/Documentation/DocBook/stylesheet.xsl
  67 XMLTOFLAGS += --skip-validation
  68
  69 ###
  70 # DOCPROC is used for two purposes:
  71 # 1) To generate a dependency list for a .tmpl file
  72 # 2) To preprocess a .tmpl file and call kernel-doc with
  73 #     appropriate parameters.
  74 # The following rules are used to generate the .xml documentation
  75 # required to generate the final targets. (ps, pdf, html).
  76 quiet_cmd_docproc = DOCPROC $@
  77       cmd_docproc = SRCTREE=$(srctree)/ $(DOCPROC) doc $< >$@
  78 define rule_docproc
  79         set -e;                                                         \
  80         $(if $($(quiet)cmd_$(1)),echo '  $($(quiet)cmd_$(1))';)         \
  81         $(cmd_$(1));                                                    \
  82         (                                                               \
  83           echo 'cmd_$@ := $(cmd_$(1))';                                 \
  84           echo $@: `SRCTREE=$(srctree) $(DOCPROC) depend $<`;           \
  85         ) > $(dir $@).$(notdir $@).cmd
  86 endef
  87
  88 %.xml: %.tmpl FORCE
  89         $(call if_changed_rule,docproc)
  90
  91 ###
  92 #Read in all saved dependency files
  93 cmd_files := $(wildcard $(foreach f,$(BOOKS),$(dir $(f)).$(notdir $(f)).cmd))
  94
  95 ifneq ($(cmd_files),)
  96   include $(cmd_files)
  97 endif
  98
  99 ###
 100 # Changes in kernel-doc force a rebuild of all documentation
 101 $(BOOKS): $(KERNELDOC)
 102
 103 # Tell kbuild to always build the programs
 104 always := $(hostprogs-y)
 105
 106 notfoundtemplate = echo "*** You have to install docbook-utils or xmlto ***"; \
 107                    exit 1
 108 db2xtemplate = db2TYPE -o $(dir $@) $<
 109 xmltotemplate = xmlto TYPE $(XMLTOFLAGS) -o $(dir $@) $<
 110
 111 # determine which methods are available
 112 ifeq ($(shell which db2ps >/dev/null 2>&1 && echo found),found)
 113         use-db2x = db2x
 114         prefer-db2x = db2x
 115 else
 116         use-db2x = notfound
 117         prefer-db2x = $(use-xmlto)
 118 endif
 119 ifeq ($(shell which xmlto >/dev/null 2>&1 && echo found),found)
 120         use-xmlto = xmlto
 121         prefer-xmlto = xmlto
 122 else
 123         use-xmlto = notfound
 124         prefer-xmlto = $(use-db2x)
 125 endif
 126
 127 # the commands, generated from the chosen template
 128 quiet_cmd_db2ps = PS      $@
 129       cmd_db2ps = $(subst TYPE,ps, $($(PS_METHOD)template))
 130 %.ps : %.xml
 131         $(call cmd,db2ps)
 132
 133 quiet_cmd_db2pdf = PDF     $@
 134       cmd_db2pdf = $(subst TYPE,pdf, $($(PDF_METHOD)template))
 135 %.pdf : %.xml
 136         $(call cmd,db2pdf)
 137
 138
 139 index = index.html
 140 main_idx = Documentation/DocBook/$(index)
 141 build_main_index = rm -rf $(main_idx); \
 142                    echo '<h1>Linux Kernel HTML Documentation</h1>' >> $(main_idx) && \
 143                    echo '<h2>Kernel Version: $(KERNELVERSION)</h2>' >> $(main_idx) && \
 144                    cat $(HTML) >> $(main_idx)
 145
 146 quiet_cmd_db2html = HTML    $@
 147       cmd_db2html = xmlto xhtml $(XMLTOFLAGS) -o $(patsubst %.html,%,$@) $< && \
 148                 echo '<a HREF="$(patsubst %.html,%,$(notdir $@))/index.html"> \
 149         $(patsubst %.html,%,$(notdir $@))</a><p>' > $@
 150
 151 %.html: %.xml
 152         @(which xmlto > /dev/null 2>&1) || \
 153          (echo "*** You need to install xmlto ***"; \
 154           exit 1)
 155         @rm -rf $@ $(patsubst %.html,%,$@)
 156         $(call cmd,db2html)
 157         @if [ ! -z "$(PNG-$(basename $(notdir $@)))" ]; then \
 158             cp $(PNG-$(basename $(notdir $@))) $(patsubst %.html,%,$@); fi
 159
 160 quiet_cmd_db2man = MAN     $@
 161       cmd_db2man = if grep -q refentry $<; then xmlto man $(XMLTOFLAGS) -o $(obj)/man $< ; gzip -f $(obj)/man/*.9; fi
 162 %.9 : %.xml
 163         @(which xmlto > /dev/null 2>&1) || \
 164          (echo "*** You need to install xmlto ***"; \
 165           exit 1)
 166         $(Q)mkdir -p $(obj)/man
 167         $(call cmd,db2man)
 168         @touch $@
 169
 170 ###
 171 # Rules to generate postscripts and PNG images from .fig format files
 172 quiet_cmd_fig2eps = FIG2EPS $@
 173       cmd_fig2eps = fig2dev -Leps $< $@
 174
 175 %.eps: %.fig
 176         @(which fig2dev > /dev/null 2>&1) || \
 177          (echo "*** You need to install transfig ***"; \
 178           exit 1)
 179         $(call cmd,fig2eps)
 180
 181 quiet_cmd_fig2png = FIG2PNG $@
 182       cmd_fig2png = fig2dev -Lpng $< $@
 183
 184 %.png: %.fig
 185         @(which fig2dev > /dev/null 2>&1) || \
 186          (echo "*** You need to install transfig ***"; \
 187           exit 1)
 188         $(call cmd,fig2png)
 189
 190 ###
 191 # Rule to convert a .c file to inline XML documentation
 192        gen_xml = :
 193  quiet_gen_xml = echo '  GEN     $@'
 194 silent_gen_xml = :
 195 %.xml: %.c
 196         @$($(quiet)gen_xml)
 197         @(                            \
 198            echo "<programlisting>";   \
 199            expand --tabs=8 < $< |     \
 200            sed -e "s/&/\\&amp;/g"     \
 201                -e "s/</\\&lt;/g"      \
 202                -e "s/>/\\&gt;/g";     \
 203            echo "</programlisting>")  > $@
 204
 205 ###
 206 # Help targets as used by the top-level makefile
 207 dochelp:
 208         @echo  ' Linux kernel internal documentation in different formats:'
 209         @echo  '  htmldocs        - HTML'
 210         @echo  '  pdfdocs         - PDF'
 211         @echo  '  psdocs          - Postscript'
 212         @echo  '  xmldocs         - XML DocBook'
 213         @echo  '  mandocs         - man pages'
 214         @echo  '  installmandocs  - install man pages generated by mandocs'
 215         @echo  '  cleandocs       - clean all generated DocBook files'
 216
 217 ###
 218 # Temporary files left by various tools
 219 clean-files := $(DOCBOOKS) \
 220         $(patsubst %.xml, %.dvi,  $(DOCBOOKS)) \
 221         $(patsubst %.xml, %.aux,  $(DOCBOOKS)) \
 222         $(patsubst %.xml, %.tex,  $(DOCBOOKS)) \
 223         $(patsubst %.xml, %.log,  $(DOCBOOKS)) \
 224         $(patsubst %.xml, %.out,  $(DOCBOOKS)) \
 225         $(patsubst %.xml, %.ps,   $(DOCBOOKS)) \
 226         $(patsubst %.xml, %.pdf,  $(DOCBOOKS)) \
 227         $(patsubst %.xml, %.html, $(DOCBOOKS)) \
 228         $(patsubst %.xml, %.9,    $(DOCBOOKS)) \
 229         $(index)
 230
 231 clean-dirs := $(patsubst %.xml,%,$(DOCBOOKS)) man $(MEDIA_DIR)
 232
 233 cleandocs:
 234         $(Q)rm -f $(call objectify, $(clean-files))
 235         $(Q)rm -rf $(call objectify, $(clean-dirs))
 236
 237 # Declare the contents of the .PHONY variable as phony.  We keep that
 238 # information in a variable se we can use it in if_changed and friends.
 239
 240 .PHONY: $(PHONY)
 241
 242
 243 #
 244 # Media build rules - Auto-generates media contents/indexes and *.h xml's
 245 #
 246
 247 SHELL=/bin/bash
 248
 249 MEDIA_DIR=$(objtree)/Documentation/DocBook/$(TMPMEDIA)
 250
 251 V4L_SGMLS = \
 252         $(shell ls $(srctree)/Documentation/DocBook/v4l/*.xml|perl -ne 'print "$$1 " if (m,.*/(.*)\n,)') \
 253         capture.c.xml \
 254         keytable.c.xml \
 255         v4l2grab.c.xml
 256
 257 DVB_SGMLS = \
 258         $(shell ls $(srctree)/Documentation/DocBook/dvb/*.xml|perl -ne 'print "$$1 " if (m,.*/(.*)\n,)')
 259
 260 MEDIA_TEMP =  media-entities.tmpl \
 261               media-indices.tmpl \
 262               videodev2.h.xml \
 263               frontend.h.xml
 264
 265 MEDIA_SGMLS =  $(addprefix ./,$(V4L_SGMLS)) $(addprefix ./,$(DVB_SGMLS)) $(addprefix ./,$(MEDIA_TEMP))
 266
 267 MEDIA_TEMP_OBJ := $(addprefix $(MEDIA_DIR)/,$(MEDIA_TEMP))
 268
 269 FUNCS = \
 270         close \
 271         ioctl \
 272         mmap \
 273         munmap \
 274         open \
 275         poll \
 276         read \
 277         select \
 278         write \
 279
 280 IOCTLS = \
 281         $(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/videodev2.h) \
 282         $(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/media.h) \
 283         $(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/v4l2-subdev.h) \
 284         VIDIOC_SUBDEV_G_FRAME_INTERVAL \
 285         VIDIOC_SUBDEV_S_FRAME_INTERVAL \
 286         VIDIOC_SUBDEV_ENUM_MBUS_CODE \
 287         VIDIOC_SUBDEV_ENUM_FRAME_SIZE \
 288         VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL \
 289
 290 TYPES = \
 291         $(shell perl -ne 'print "$$1 " if /^typedef\s+[^\s]+\s+([^\s]+)\;/' $(srctree)/include/linux/videodev2.h)
 292
 293 ENUMS = \
 294         $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/videodev2.h) \
 295         $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/media.h) \
 296         $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/v4l2-mediabus.h) \
 297         $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/v4l2-subdev.h)
 298
 299 STRUCTS = \
 300         $(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/linux/videodev2.h) \
 301         $(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/linux/media.h) \
 302         $(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/linux/v4l2-subdev.h) \
 303         $(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/linux/v4l2-mediabus.h)
 304
 305 ERRORS = \
 306         EACCES \
 307         EAGAIN \
 308         EBADF \
 309         EBUSY \
 310         EFAULT \
 311         EIO \
 312         EINTR \
 313         EINVAL \
 314         ENFILE \
 315         ENOMEM \
 316         ENOSPC \
 317         ENOTTY \
 318         ENXIO \
 319         EMFILE \
 320         EPERM \
 321         ERANGE \
 322         EPIPE \
 323
 324 ESCAPE = \
 325         -e "s/&/\\&amp;/g" \
 326         -e "s/</\\&lt;/g" \
 327         -e "s/>/\\&gt;/g"
 328
 329 FILENAME = \
 330         -e s,"^[^\/]*/",, \
 331         -e s/"\\.xml"// \
 332         -e s/"\\.tmpl"// \
 333         -e s/\\\./-/g \
 334         -e s/"^func-"// \
 335         -e s/"^pixfmt-"// \
 336         -e s/"^vidioc-"//
 337
 338 # Generate references to these structs in videodev2.h.xml.
 339 DOCUMENTED = \
 340         -e "s/\(enum *\)v4l2_mpeg_cx2341x_video_\([a-z]*_spatial_filter_type\)/\1<link linkend=\"\2\">v4l2_mpeg_cx2341x_video_\2<\/link>/g" \
 341         -e "s/\(\(enum\|struct\) *\)\(v4l2_[a-zA-Z0-9_]*\)/\1<link linkend=\"\3\">\3<\/link>/g" \
 342         -e "s/\(V4L2_PIX_FMT_[A-Z0-9_]\+\) /<link linkend=\"\1\">\1<\/link> /g" \
 343         -e ":a;s/\(linkend=\".*\)_\(.*\">\)/\1-\2/;ta" \
 344         -e "s/v4l2\-mpeg\-vbi\-ITV0/v4l2-mpeg-vbi-itv0-1/g"
 345
 346 DVB_DOCUMENTED = \
 347         -e "s,\(define \)\([A-Z0-9_]\+\)\(\s\+_IO\),\1\<link linkend=\"\2\">\2\<\/link\>\3,g" \
 348         -e "s/\(linkend\=\"\)FE_SET_PROPERTY/\1FE_GET_PROPERTY/g"
 349
 350
 351 #
 352 # Media targets and dependencies
 353 #
 354
 355 $(obj)/$(TMPMEDIA)/media.xml: $(obj)/media.tmpl $(MEDIA_TEMP_OBJ) FORCE
 356         $(call if_changed_rule,docproc)
 357
 358 $(MEDIA_DIR)/v4l2.xml:
 359         @$($(quiet)gen_xml)
 360         @(mkdir -p $(MEDIA_DIR))
 361         @(cp $(srctree)/Documentation/DocBook/dvb/*.png $(srctree)/Documentation/DocBook/v4l/*.gif $(MEDIA_DIR)/)
 362         @(ln -sf $(srctree)/Documentation/DocBook/v4l/*xml $(MEDIA_DIR)/)
 363         @(ln -sf $(srctree)/Documentation/DocBook/dvb/*xml $(MEDIA_DIR)/)
 364
 365 $(MEDIA_DIR)/videodev2.h.xml: $(srctree)/include/linux/videodev2.h $(MEDIA_DIR)/v4l2.xml
 366         @$($(quiet)gen_xml)
 367         @(                                      \
 368         echo "<programlisting>") > $@
 369         @(                                      \
 370         expand --tabs=8 < $< |                  \
 371           sed $(ESCAPE) $(DOCUMENTED) |         \
 372           sed 's/i\.e\./&ie;/') >> $@
 373         @(                                      \
 374         echo "</programlisting>") >> $@
 375
 376 $(MEDIA_DIR)/frontend.h.xml: $(srctree)/include/linux/dvb/frontend.h $(MEDIA_DIR)/v4l2.xml
 377         @$($(quiet)gen_xml)
 378         @(                                      \
 379         echo "<programlisting>") > $@
 380         @(                                      \
 381         expand --tabs=8 < $< |                  \
 382           sed $(ESCAPE) $(DVB_DOCUMENTED) |     \
 383           sed 's/i\.e\./&ie;/') >> $@
 384         @(                                      \
 385         echo "</programlisting>") >> $@
 386
 387 $(MEDIA_DIR)/media-entities.tmpl: $(MEDIA_DIR)/v4l2.xml
 388         @$($(quiet)gen_xml)
 389         @(                                                              \
 390         echo "<!-- Generated file! Do not edit. -->") >$@
 391         @(                                                              \
 392         echo -e "\n<!-- Functions -->") >>$@
 393         @(                                                              \
 394         for ident in $(FUNCS) ; do                                      \
 395           entity=`echo $$ident | tr _ -` ;                              \
 396           echo "<!ENTITY func-$$entity \"<link"                         \
 397             "linkend='func-$$entity'><function>$$ident()</function></link>\">" \
 398           >>$@ ;                                                        \
 399         done)
 400         @(                                                              \
 401         echo -e "\n<!-- Ioctls -->") >>$@
 402         @(                                                              \
 403         for ident in $(IOCTLS) ; do                                     \
 404           entity=`echo $$ident | tr _ -` ;                              \
 405           id=`grep "<refname>$$ident" $(MEDIA_DIR)/vidioc-*.xml | sed -r s,"^.*/(.*).xml.*","\1",` ; \
 406           echo "<!ENTITY $$entity \"<link"                              \
 407             "linkend='$$id'><constant>$$ident</constant></link>\">"     \
 408           >>$@ ;                                                        \
 409         done)
 410         @(                                                              \
 411         echo -e "\n<!-- Types -->") >>$@
 412         @(                                                              \
 413         for ident in $(TYPES) ; do                                      \
 414           entity=`echo $$ident | tr _ -` ;                              \
 415           echo "<!ENTITY $$entity \"<link"                              \
 416             "linkend='$$entity'>$$ident</link>\">" >>$@ ;               \
 417         done)
 418         @(                                                              \
 419         echo -e "\n<!-- Enums -->") >>$@
 420         @(                                                              \
 421         for ident in $(ENUMS) ; do                                      \
 422           entity=`echo $$ident | sed -e "s/v4l2_mpeg_cx2341x_video_\([a-z]*_spatial_filter_type\)/\1/" | tr _ -` ; \
 423           echo "<!ENTITY $$entity \"enum&nbsp;<link"                    \
 424             "linkend='$$entity'>$$ident</link>\">" >>$@ ;               \
 425         done)
 426         @(                                                              \
 427         echo -e "\n<!-- Structures -->") >>$@
 428         @(                                                              \
 429         for ident in $(STRUCTS) ; do                                    \
 430           entity=`echo $$ident | tr _ - | sed s/v4l2-mpeg-vbi-ITV0/v4l2-mpeg-vbi-itv0-1/g` ; \
 431           echo "<!ENTITY $$entity \"struct&nbsp;<link"                  \
 432             "linkend='$$entity'>$$ident</link>\">" >>$@ ;               \
 433         done)
 434         @(                                                              \
 435         echo -e "\n<!-- Error Codes -->") >>$@
 436         @(                                                              \
 437         for ident in $(ERRORS) ; do                                     \
 438           echo "<!ENTITY $$ident \"<errorcode>$$ident</errorcode>"      \
 439             "error code\">" >>$@ ;                                      \
 440         done)
 441         @(                                                              \
 442         echo -e "\n<!-- Subsections -->") >>$@
 443         @(                                                              \
 444         for file in $(MEDIA_SGMLS) ; do                                 \
 445           entity=`echo "$$file" | sed $(FILENAME) -e s/"^([^-]*)"/sub\1/` ; \
 446           if ! echo "$$file" |                                          \
 447             grep -q -E -e '^(func|vidioc|pixfmt)-' ; then               \
 448             echo "<!ENTITY sub-$$entity SYSTEM \"$$file\">" >>$@ ;      \
 449           fi ;                                                          \
 450         done)
 451         @(                                                              \
 452         echo -e "\n<!-- Function Reference -->") >>$@
 453         @(                                                              \
 454         for file in $(MEDIA_SGMLS) ; do                                 \
 455           if echo "$$file" |                                            \
 456             grep -q -E -e '(func|vidioc|pixfmt)-' ; then                \
 457             entity=`echo "$$file" |sed $(FILENAME)` ;                   \
 458             echo "<!ENTITY $$entity SYSTEM \"$$file\">" >>$@ ;  \
 459           fi ;                                                          \
 460         done)
 461
 462 # Jade can auto-generate a list-of-tables, which includes all structs,
 463 # but we only want data types, all types, and sorted please.
 464 $(MEDIA_DIR)/media-indices.tmpl: $(MEDIA_DIR)/v4l2.xml
 465         @$($(quiet)gen_xml)
 466         @(                                                              \
 467         echo "<!-- Generated file! Do not edit. -->") >$@
 468         @(                                                              \
 469         echo -e "\n<index><title>List of Types</title>") >>$@
 470         @(                                                              \
 471         for ident in $(TYPES) ; do                                      \
 472           id=`echo $$ident | tr _ -` ;                                  \
 473           echo "<indexentry><primaryie><link"                           \
 474             "linkend='$$id'>$$ident</link></primaryie></indexentry>" >>$@ ; \
 475         done)
 476         @(                                                              \
 477         for ident in $(ENUMS) ; do                                      \
 478           id=`echo $$ident | sed -e "s/v4l2_mpeg_cx2341x_video_\([a-z]*_spatial_filter_type\)/\1/" | tr _ -`; \
 479           echo "<indexentry><primaryie>enum&nbsp;<link"                 \
 480             "linkend='$$id'>$$ident</link></primaryie></indexentry>" >>$@ ; \
 481         done)
 482         @(                                                              \
 483         for ident in $(STRUCTS) ; do                                    \
 484           id=`echo $$ident | tr _ - | sed s/v4l2-mpeg-vbi-ITV0/v4l2-mpeg-vbi-itv0-1/g` ; \
 485           echo "<indexentry><primaryie>struct&nbsp;<link"               \
 486             "linkend='$$id'>$$ident</link></primaryie></indexentry>" >>$@ ; \
 487         done)
 488         @(                                                              \
 489         echo "</index>") >>$@