git.oblomov.eu Git - git/blob - Documentation/Makefile

   1 # Guard against environment variables
   2 MAN1_TXT =
   3 MAN5_TXT =
   4 MAN7_TXT =
   5 TECH_DOCS =
   6 ARTICLES =
   7 SP_ARTICLES =
   8 OBSOLETE_HTML =
   9
  10 MAN1_TXT += $(filter-out \
  11                 $(addsuffix .txt, $(ARTICLES) $(SP_ARTICLES)), \
  12                 $(wildcard git-*.txt))
  13 MAN1_TXT += git.txt
  14 MAN1_TXT += gitk.txt
  15 MAN1_TXT += gitremote-helpers.txt
  16 MAN1_TXT += gitweb.txt
  17
  18 MAN5_TXT += gitattributes.txt
  19 MAN5_TXT += githooks.txt
  20 MAN5_TXT += gitignore.txt
  21 MAN5_TXT += gitmodules.txt
  22 MAN5_TXT += gitrepository-layout.txt
  23 MAN5_TXT += gitweb.conf.txt
  24
  25 MAN7_TXT += gitcli.txt
  26 MAN7_TXT += gitcore-tutorial.txt
  27 MAN7_TXT += gitcredentials.txt
  28 MAN7_TXT += gitcvs-migration.txt
  29 MAN7_TXT += gitdiffcore.txt
  30 MAN7_TXT += giteveryday.txt
  31 MAN7_TXT += gitglossary.txt
  32 MAN7_TXT += gitnamespaces.txt
  33 MAN7_TXT += gitrevisions.txt
  34 MAN7_TXT += gitsubmodules.txt
  35 MAN7_TXT += gittutorial-2.txt
  36 MAN7_TXT += gittutorial.txt
  37 MAN7_TXT += gitworkflows.txt
  38
  39 ifdef MAN_FILTER
  40 MAN_TXT = $(filter $(MAN_FILTER),$(MAN1_TXT) $(MAN5_TXT) $(MAN7_TXT))
  41 else
  42 MAN_TXT = $(MAN1_TXT) $(MAN5_TXT) $(MAN7_TXT)
  43 MAN_FILTER = $(MAN_TXT)
  44 endif
  45
  46 MAN_XML = $(patsubst %.txt,%.xml,$(MAN_TXT))
  47 MAN_HTML = $(patsubst %.txt,%.html,$(MAN_TXT))
  48 GIT_MAN_REF = master
  49
  50 OBSOLETE_HTML += everyday.html
  51 OBSOLETE_HTML += git-remote-helpers.html
  52
  53 ARTICLES += howto-index
  54 ARTICLES += git-tools
  55 ARTICLES += git-bisect-lk2009
  56 # with their own formatting rules.
  57 SP_ARTICLES += user-manual
  58 SP_ARTICLES += howto/new-command
  59 SP_ARTICLES += howto/revert-branch-rebase
  60 SP_ARTICLES += howto/using-merge-subtree
  61 SP_ARTICLES += howto/using-signed-tag-in-pull-request
  62 SP_ARTICLES += howto/use-git-daemon
  63 SP_ARTICLES += howto/update-hook-example
  64 SP_ARTICLES += howto/setup-git-server-over-http
  65 SP_ARTICLES += howto/separating-topic-branches
  66 SP_ARTICLES += howto/revert-a-faulty-merge
  67 SP_ARTICLES += howto/recover-corrupted-blob-object
  68 SP_ARTICLES += howto/recover-corrupted-object-harder
  69 SP_ARTICLES += howto/rebuild-from-update-hook
  70 SP_ARTICLES += howto/rebase-from-internal-branch
  71 SP_ARTICLES += howto/keep-canonical-history-correct
  72 SP_ARTICLES += howto/maintain-git
  73 API_DOCS = $(patsubst %.txt,%,$(filter-out technical/api-index-skel.txt technical/api-index.txt, $(wildcard technical/api-*.txt)))
  74 SP_ARTICLES += $(API_DOCS)
  75
  76 TECH_DOCS += SubmittingPatches
  77 TECH_DOCS += technical/hash-function-transition
  78 TECH_DOCS += technical/http-protocol
  79 TECH_DOCS += technical/index-format
  80 TECH_DOCS += technical/long-running-process-protocol
  81 TECH_DOCS += technical/multi-pack-index
  82 TECH_DOCS += technical/pack-format
  83 TECH_DOCS += technical/pack-heuristics
  84 TECH_DOCS += technical/pack-protocol
  85 TECH_DOCS += technical/partial-clone
  86 TECH_DOCS += technical/protocol-capabilities
  87 TECH_DOCS += technical/protocol-common
  88 TECH_DOCS += technical/protocol-v2
  89 TECH_DOCS += technical/racy-git
  90 TECH_DOCS += technical/send-pack-pipeline
  91 TECH_DOCS += technical/shallow
  92 TECH_DOCS += technical/signature-format
  93 TECH_DOCS += technical/trivial-merge
  94 SP_ARTICLES += $(TECH_DOCS)
  95 SP_ARTICLES += technical/api-index
  96
  97 ARTICLES_HTML += $(patsubst %,%.html,$(ARTICLES) $(SP_ARTICLES))
  98 HTML_FILTER ?= $(ARTICLES_HTML) $(OBSOLETE_HTML)
  99 DOC_HTML = $(MAN_HTML) $(filter $(HTML_FILTER),$(ARTICLES_HTML) $(OBSOLETE_HTML))
 100
 101 DOC_MAN1 = $(patsubst %.txt,%.1,$(filter $(MAN_FILTER),$(MAN1_TXT)))
 102 DOC_MAN5 = $(patsubst %.txt,%.5,$(filter $(MAN_FILTER),$(MAN5_TXT)))
 103 DOC_MAN7 = $(patsubst %.txt,%.7,$(filter $(MAN_FILTER),$(MAN7_TXT)))
 104
 105 prefix ?= $(HOME)
 106 bindir ?= $(prefix)/bin
 107 htmldir ?= $(prefix)/share/doc/git-doc
 108 infodir ?= $(prefix)/share/info
 109 pdfdir ?= $(prefix)/share/doc/git-doc
 110 mandir ?= $(prefix)/share/man
 111 man1dir = $(mandir)/man1
 112 man5dir = $(mandir)/man5
 113 man7dir = $(mandir)/man7
 114 # DESTDIR =
 115
 116 ASCIIDOC = asciidoc
 117 ASCIIDOC_EXTRA =
 118 ASCIIDOC_HTML = xhtml11
 119 ASCIIDOC_DOCBOOK = docbook
 120 ASCIIDOC_CONF = -f asciidoc.conf
 121 ASCIIDOC_COMMON = $(ASCIIDOC) $(ASCIIDOC_EXTRA) $(ASCIIDOC_CONF) \
 122                 -agit_version=$(GIT_VERSION)
 123 TXT_TO_HTML = $(ASCIIDOC_COMMON) -b $(ASCIIDOC_HTML)
 124 TXT_TO_XML = $(ASCIIDOC_COMMON) -b $(ASCIIDOC_DOCBOOK)
 125 MANPAGE_XSL = manpage-normal.xsl
 126 XMLTO = xmlto
 127 XMLTO_EXTRA =
 128 INSTALL ?= install
 129 RM ?= rm -f
 130 MAN_REPO = ../../git-manpages
 131 HTML_REPO = ../../git-htmldocs
 132
 133 MAKEINFO = makeinfo
 134 INSTALL_INFO = install-info
 135 DOCBOOK2X_TEXI = docbook2x-texi
 136 DBLATEX = dblatex
 137 ASCIIDOC_DBLATEX_DIR = /etc/asciidoc/dblatex
 138 DBLATEX_COMMON = -p $(ASCIIDOC_DBLATEX_DIR)/asciidoc-dblatex.xsl -s $(ASCIIDOC_DBLATEX_DIR)/asciidoc-dblatex.sty
 139 ifndef PERL_PATH
 140         PERL_PATH = /usr/bin/perl
 141 endif
 142
 143 -include ../config.mak.autogen
 144 -include ../config.mak
 145
 146 #
 147 # For docbook-xsl ...
 148 #       -1.68.1,        no extra settings are needed?
 149 #       1.69.0,         set ASCIIDOC_ROFF?
 150 #       1.69.1-1.71.0,  set DOCBOOK_SUPPRESS_SP?
 151 #       1.71.1,         set ASCIIDOC_ROFF?
 152 #       1.72.0,         set DOCBOOK_XSL_172.
 153 #       1.73.0-,        no extra settings are needed
 154 #
 155
 156 ifdef DOCBOOK_XSL_172
 157 ASCIIDOC_EXTRA += -a git-asciidoc-no-roff
 158 MANPAGE_XSL = manpage-1.72.xsl
 159 else
 160         ifndef ASCIIDOC_ROFF
 161         # docbook-xsl after 1.72 needs the regular XSL, but will not
 162         # pass-thru raw roff codes from asciidoc.conf, so turn them off.
 163         ASCIIDOC_EXTRA += -a git-asciidoc-no-roff
 164         endif
 165 endif
 166 ifndef NO_MAN_BOLD_LITERAL
 167 XMLTO_EXTRA += -m manpage-bold-literal.xsl
 168 endif
 169 ifdef DOCBOOK_SUPPRESS_SP
 170 XMLTO_EXTRA += -m manpage-suppress-sp.xsl
 171 endif
 172
 173 # Newer DocBook stylesheet emits warning cruft in the output when
 174 # this is not set, and if set it shows an absolute link.  Older
 175 # stylesheets simply ignore this parameter.
 176 #
 177 # Distros may want to use MAN_BASE_URL=file:///path/to/git/docs/
 178 # or similar.
 179 ifndef MAN_BASE_URL
 180 MAN_BASE_URL = file://$(htmldir)/
 181 endif
 182 XMLTO_EXTRA += -m manpage-base-url.xsl
 183
 184 # If your target system uses GNU groff, it may try to render
 185 # apostrophes as a "pretty" apostrophe using unicode.  This breaks
 186 # cut&paste, so you should set GNU_ROFF to force them to be ASCII
 187 # apostrophes.  Unfortunately does not work with non-GNU roff.
 188 ifdef GNU_ROFF
 189 XMLTO_EXTRA += -m manpage-quote-apos.xsl
 190 endif
 191
 192 ifdef USE_ASCIIDOCTOR
 193 ASCIIDOC = asciidoctor
 194 ASCIIDOC_CONF =
 195 ASCIIDOC_HTML = xhtml5
 196 ASCIIDOC_DOCBOOK = docbook45
 197 ASCIIDOC_EXTRA += -acompat-mode -atabsize=8
 198 ASCIIDOC_EXTRA += -I. -rasciidoctor-extensions
 199 ASCIIDOC_EXTRA += -alitdd='&\#x2d;&\#x2d;'
 200 DBLATEX_COMMON =
 201 endif
 202
 203 SHELL_PATH ?= $(SHELL)
 204 # Shell quote;
 205 SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH))
 206
 207 ifdef DEFAULT_PAGER
 208 DEFAULT_PAGER_SQ = $(subst ','\'',$(DEFAULT_PAGER))
 209 ASCIIDOC_EXTRA += -a 'git-default-pager=$(DEFAULT_PAGER_SQ)'
 210 endif
 211
 212 ifdef DEFAULT_EDITOR
 213 DEFAULT_EDITOR_SQ = $(subst ','\'',$(DEFAULT_EDITOR))
 214 ASCIIDOC_EXTRA += -a 'git-default-editor=$(DEFAULT_EDITOR_SQ)'
 215 endif
 216
 217 QUIET_SUBDIR0  = +$(MAKE) -C # space to separate -C and subdir
 218 QUIET_SUBDIR1  =
 219
 220 ifneq ($(findstring $(MAKEFLAGS),w),w)
 221 PRINT_DIR = --no-print-directory
 222 else # "make -w"
 223 NO_SUBDIR = :
 224 endif
 225
 226 ifneq ($(findstring $(MAKEFLAGS),s),s)
 227 ifndef V
 228         QUIET_ASCIIDOC  = @echo '   ' ASCIIDOC $@;
 229         QUIET_XMLTO     = @echo '   ' XMLTO $@;
 230         QUIET_DB2TEXI   = @echo '   ' DB2TEXI $@;
 231         QUIET_MAKEINFO  = @echo '   ' MAKEINFO $@;
 232         QUIET_DBLATEX   = @echo '   ' DBLATEX $@;
 233         QUIET_XSLTPROC  = @echo '   ' XSLTPROC $@;
 234         QUIET_GEN       = @echo '   ' GEN $@;
 235         QUIET_LINT      = @echo '   ' LINT $@;
 236         QUIET_STDERR    = 2> /dev/null
 237         QUIET_SUBDIR0   = +@subdir=
 238         QUIET_SUBDIR1   = ;$(NO_SUBDIR) echo '   ' SUBDIR $$subdir; \
 239                           $(MAKE) $(PRINT_DIR) -C $$subdir
 240         export V
 241 endif
 242 endif
 243
 244 all: html man
 245
 246 html: $(DOC_HTML)
 247
 248 man: man1 man5 man7
 249 man1: $(DOC_MAN1)
 250 man5: $(DOC_MAN5)
 251 man7: $(DOC_MAN7)
 252
 253 info: git.info gitman.info
 254
 255 pdf: user-manual.pdf
 256
 257 install: install-man
 258
 259 install-man: man
 260         $(INSTALL) -d -m 755 $(DESTDIR)$(man1dir)
 261         $(INSTALL) -d -m 755 $(DESTDIR)$(man5dir)
 262         $(INSTALL) -d -m 755 $(DESTDIR)$(man7dir)
 263         $(INSTALL) -m 644 $(DOC_MAN1) $(DESTDIR)$(man1dir)
 264         $(INSTALL) -m 644 $(DOC_MAN5) $(DESTDIR)$(man5dir)
 265         $(INSTALL) -m 644 $(DOC_MAN7) $(DESTDIR)$(man7dir)
 266
 267 install-info: info
 268         $(INSTALL) -d -m 755 $(DESTDIR)$(infodir)
 269         $(INSTALL) -m 644 git.info gitman.info $(DESTDIR)$(infodir)
 270         if test -r $(DESTDIR)$(infodir)/dir; then \
 271           $(INSTALL_INFO) --info-dir=$(DESTDIR)$(infodir) git.info ;\
 272           $(INSTALL_INFO) --info-dir=$(DESTDIR)$(infodir) gitman.info ;\
 273         else \
 274           echo "No directory found in $(DESTDIR)$(infodir)" >&2 ; \
 275         fi
 276
 277 install-pdf: pdf
 278         $(INSTALL) -d -m 755 $(DESTDIR)$(pdfdir)
 279         $(INSTALL) -m 644 user-manual.pdf $(DESTDIR)$(pdfdir)
 280
 281 install-html: html
 282         '$(SHELL_PATH_SQ)' ./install-webdoc.sh $(DESTDIR)$(htmldir)
 283
 284 ../GIT-VERSION-FILE: FORCE
 285         $(QUIET_SUBDIR0)../ $(QUIET_SUBDIR1) GIT-VERSION-FILE
 286
 287 -include ../GIT-VERSION-FILE
 288
 289 #
 290 # Determine "include::" file references in asciidoc files.
 291 #
 292 docdep_prereqs = \
 293         mergetools-list.made $(mergetools_txt) \
 294         cmd-list.made $(cmds_txt)
 295
 296 doc.dep : $(docdep_prereqs) $(wildcard *.txt) $(wildcard config/*.txt) build-docdep.perl
 297         $(QUIET_GEN)$(RM) $@+ $@ && \
 298         $(PERL_PATH) ./build-docdep.perl >$@+ $(QUIET_STDERR) && \
 299         mv $@+ $@
 300
 301 -include doc.dep
 302
 303 cmds_txt = cmds-ancillaryinterrogators.txt \
 304         cmds-ancillarymanipulators.txt \
 305         cmds-mainporcelain.txt \
 306         cmds-plumbinginterrogators.txt \
 307         cmds-plumbingmanipulators.txt \
 308         cmds-synchingrepositories.txt \
 309         cmds-synchelpers.txt \
 310         cmds-purehelpers.txt \
 311         cmds-foreignscminterface.txt
 312
 313 $(cmds_txt): cmd-list.made
 314
 315 cmd-list.made: cmd-list.perl ../command-list.txt $(MAN1_TXT)
 316         $(QUIET_GEN)$(RM) $@ && \
 317         $(PERL_PATH) ./cmd-list.perl ../command-list.txt $(QUIET_STDERR) && \
 318         date >$@
 319
 320 mergetools_txt = mergetools-diff.txt mergetools-merge.txt
 321
 322 $(mergetools_txt): mergetools-list.made
 323
 324 mergetools-list.made: ../git-mergetool--lib.sh $(wildcard ../mergetools/*)
 325         $(QUIET_GEN)$(RM) $@ && \
 326         $(SHELL_PATH) -c 'MERGE_TOOLS_DIR=../mergetools && \
 327                 . ../git-mergetool--lib.sh && \
 328                 show_tool_names can_diff "* " || :' >mergetools-diff.txt && \
 329         $(SHELL_PATH) -c 'MERGE_TOOLS_DIR=../mergetools && \
 330                 . ../git-mergetool--lib.sh && \
 331                 show_tool_names can_merge "* " || :' >mergetools-merge.txt && \
 332         date >$@
 333
 334 clean:
 335         $(RM) *.xml *.xml+ *.html *.html+ *.1 *.5 *.7
 336         $(RM) *.texi *.texi+ *.texi++ git.info gitman.info
 337         $(RM) *.pdf
 338         $(RM) howto-index.txt howto/*.html doc.dep
 339         $(RM) technical/*.html technical/api-index.txt
 340         $(RM) SubmittingPatches.txt
 341         $(RM) $(cmds_txt) $(mergetools_txt) *.made
 342         $(RM) manpage-base-url.xsl
 343
 344 $(MAN_HTML): %.html : %.txt asciidoc.conf
 345         $(QUIET_ASCIIDOC)$(RM) $@+ $@ && \
 346         $(TXT_TO_HTML) -d manpage -o $@+ $< && \
 347         mv $@+ $@
 348
 349 $(OBSOLETE_HTML): %.html : %.txto asciidoc.conf
 350         $(QUIET_ASCIIDOC)$(RM) $@+ $@ && \
 351         $(TXT_TO_HTML) -o $@+ $< && \
 352         mv $@+ $@
 353
 354 manpage-base-url.xsl: manpage-base-url.xsl.in
 355         $(QUIET_GEN)sed "s|@@MAN_BASE_URL@@|$(MAN_BASE_URL)|" $< > $@
 356
 357 %.1 %.5 %.7 : %.xml manpage-base-url.xsl
 358         $(QUIET_XMLTO)$(RM) $@ && \
 359         $(XMLTO) -m $(MANPAGE_XSL) $(XMLTO_EXTRA) man $<
 360
 361 %.xml : %.txt asciidoc.conf
 362         $(QUIET_ASCIIDOC)$(RM) $@+ $@ && \
 363         $(TXT_TO_XML) -d manpage -o $@+ $< && \
 364         mv $@+ $@
 365
 366 user-manual.xml: user-manual.txt user-manual.conf
 367         $(QUIET_ASCIIDOC)$(RM) $@+ $@ && \
 368         $(TXT_TO_XML) -d book -o $@+ $< && \
 369         mv $@+ $@
 370
 371 technical/api-index.txt: technical/api-index-skel.txt \
 372         technical/api-index.sh $(patsubst %,%.txt,$(API_DOCS))
 373         $(QUIET_GEN)cd technical && '$(SHELL_PATH_SQ)' ./api-index.sh
 374
 375 technical/%.html: ASCIIDOC_EXTRA += -a git-relative-html-prefix=../
 376 $(patsubst %,%.html,$(API_DOCS) technical/api-index $(TECH_DOCS)): %.html : %.txt asciidoc.conf
 377         $(QUIET_ASCIIDOC)$(TXT_TO_HTML) $*.txt
 378
 379 SubmittingPatches.txt: SubmittingPatches
 380         $(QUIET_GEN) cp $< $@
 381
 382 XSLT = docbook.xsl
 383 XSLTOPTS = --xinclude --stringparam html.stylesheet docbook-xsl.css
 384
 385 user-manual.html: user-manual.xml $(XSLT)
 386         $(QUIET_XSLTPROC)$(RM) $@+ $@ && \
 387         xsltproc $(XSLTOPTS) -o $@+ $(XSLT) $< && \
 388         mv $@+ $@
 389
 390 git.info: user-manual.texi
 391         $(QUIET_MAKEINFO)$(MAKEINFO) --no-split -o $@ user-manual.texi
 392
 393 user-manual.texi: user-manual.xml
 394         $(QUIET_DB2TEXI)$(RM) $@+ $@ && \
 395         $(DOCBOOK2X_TEXI) user-manual.xml --encoding=UTF-8 --to-stdout >$@++ && \
 396         $(PERL_PATH) fix-texi.perl <$@++ >$@+ && \
 397         rm $@++ && \
 398         mv $@+ $@
 399
 400 user-manual.pdf: user-manual.xml
 401         $(QUIET_DBLATEX)$(RM) $@+ $@ && \
 402         $(DBLATEX) -o $@+ $(DBLATEX_COMMON) $< && \
 403         mv $@+ $@
 404
 405 gitman.texi: $(MAN_XML) cat-texi.perl texi.xsl
 406         $(QUIET_DB2TEXI)$(RM) $@+ $@ && \
 407         ($(foreach xml,$(sort $(MAN_XML)),xsltproc -o $(xml)+ texi.xsl $(xml) && \
 408                 $(DOCBOOK2X_TEXI) --encoding=UTF-8 --to-stdout $(xml)+ && \
 409                 rm $(xml)+ &&) true) > $@++ && \
 410         $(PERL_PATH) cat-texi.perl $@ <$@++ >$@+ && \
 411         rm $@++ && \
 412         mv $@+ $@
 413
 414 gitman.info: gitman.texi
 415         $(QUIET_MAKEINFO)$(MAKEINFO) --no-split --no-validate $*.texi
 416
 417 $(patsubst %.txt,%.texi,$(MAN_TXT)): %.texi : %.xml
 418         $(QUIET_DB2TEXI)$(RM) $@+ $@ && \
 419         $(DOCBOOK2X_TEXI) --to-stdout $*.xml >$@+ && \
 420         mv $@+ $@
 421
 422 howto-index.txt: howto-index.sh $(wildcard howto/*.txt)
 423         $(QUIET_GEN)$(RM) $@+ $@ && \
 424         '$(SHELL_PATH_SQ)' ./howto-index.sh $(sort $(wildcard howto/*.txt)) >$@+ && \
 425         mv $@+ $@
 426
 427 $(patsubst %,%.html,$(ARTICLES)) : %.html : %.txt
 428         $(QUIET_ASCIIDOC)$(TXT_TO_HTML) $*.txt
 429
 430 WEBDOC_DEST = /pub/software/scm/git/docs
 431
 432 howto/%.html: ASCIIDOC_EXTRA += -a git-relative-html-prefix=../
 433 $(patsubst %.txt,%.html,$(wildcard howto/*.txt)): %.html : %.txt
 434         $(QUIET_ASCIIDOC)$(RM) $@+ $@ && \
 435         sed -e '1,/^$$/d' $< | \
 436         $(TXT_TO_HTML) - >$@+ && \
 437         mv $@+ $@
 438
 439 install-webdoc : html
 440         '$(SHELL_PATH_SQ)' ./install-webdoc.sh $(WEBDOC_DEST)
 441
 442 # You must have a clone of 'git-htmldocs' and 'git-manpages' repositories
 443 # next to the 'git' repository itself for the following to work.
 444
 445 quick-install: quick-install-man
 446
 447 require-manrepo::
 448         @if test ! -d $(MAN_REPO); \
 449         then echo "git-manpages repository must exist at $(MAN_REPO)"; exit 1; fi
 450
 451 quick-install-man: require-manrepo
 452         '$(SHELL_PATH_SQ)' ./install-doc-quick.sh $(MAN_REPO) $(DESTDIR)$(mandir) $(GIT_MAN_REF)
 453
 454 require-htmlrepo::
 455         @if test ! -d $(HTML_REPO); \
 456         then echo "git-htmldocs repository must exist at $(HTML_REPO)"; exit 1; fi
 457
 458 quick-install-html: require-htmlrepo
 459         '$(SHELL_PATH_SQ)' ./install-doc-quick.sh $(HTML_REPO) $(DESTDIR)$(htmldir) $(GIT_MAN_REF)
 460
 461 print-man1:
 462         @for i in $(MAN1_TXT); do echo $$i; done
 463
 464 lint-docs::
 465         $(QUIET_LINT)$(PERL_PATH) lint-gitlink.perl
 466
 467 ifeq ($(wildcard po/Makefile),po/Makefile)
 468 doc-l10n install-l10n::
 469         $(MAKE) -C po $@
 470 endif
 471
 472 .PHONY: FORCE