maintainer/maint.mk

   1 # Maintainer makefile rules for Automake.
   2 #
   3 # Copyright (C) 1995-2017 Free Software Foundation, Inc.
   4 #
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 2, or (at your option)
   8 # any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  17
  18 # Avoid CDPATH issues.
  19 unexport CDPATH
  20
  21 # Program to use to fetch files from the Net.
  22 WGET = wget
  23
  24 # --------------------------------------------------------- #
  25 #  Automatic generation of the ChangeLog from git history.  #
  26 # --------------------------------------------------------- #
  27
  28 gitlog_to_changelog_command = $(PERL) $(srcdir)/lib/gitlog-to-changelog
  29 gitlog_to_changelog_fixes = $(srcdir)/.git-log-fix
  30 gitlog_to_changelog_options = --amend=$(gitlog_to_changelog_fixes) \
  31                               --since='2011-12-28 00:00:00' \
  32                               --no-cluster --format '%s%n%n%b'
  33
  34 EXTRA_DIST += lib/gitlog-to-changelog
  35 EXTRA_DIST += $(gitlog_to_changelog_fixes)
  36
  37 # When executed from a git checkout, generate the ChangeLog from the git
  38 # history.  When executed from an extracted distribution tarball, just
  39 # copy the distributed ChangeLog in the build directory (and if this
  40 # fails, or if no distributed ChangeLog file is present, complain and
  41 # give an error).
  42 #
  43 # The ChangeLog should be regenerated unconditionally when working from
  44 # checked-out sources; otherwise, if we're working from a distribution
  45 # tarball, we expect the ChangeLog to be distributed, so check that it
  46 # is indeed present in the source directory.
  47 ChangeLog:
  48         $(AM_V_GEN)set -e; set -u; \
  49         if test -d $(srcdir)/.git; then \
  50           rm -f $@-t \
  51             && $(gitlog_to_changelog_command) \
  52                $(gitlog_to_changelog_options) >$@-t \
  53             && chmod a-w $@-t \
  54             && mv -f $@-t $@ \
  55             || exit 1; \
  56         elif test ! -f $(srcdir)/$@; then \
  57           echo "Source tree is not a git checkout, and no pre-existent" \
  58                "$@ file has been found there" >&2; \
  59           exit 1; \
  60         fi
  61 .PHONY: ChangeLog
  62
  63
  64 # --------------------------- #
  65 #  Perl coverage statistics.  #
  66 # --------------------------- #
  67
  68 PERL_COVERAGE_DB = $(abs_top_builddir)/cover_db
  69 PERL_COVERAGE_FLAGS = -MDevel::Cover=-db,$(PERL_COVERAGE_DB),-silent,on,-summary,off
  70 PERL_COVER = cover
  71
  72 check-coverage-run recheck-coverage-run: %-coverage-run: all
  73         $(MKDIR_P) $(PERL_COVERAGE_DB)
  74         PERL5OPT="$$PERL5OPT $(PERL_COVERAGE_FLAGS)"; export PERL5OPT; \
  75         WANT_NO_THREADS=yes; export WANT_NO_THREADS; unset AUTOMAKE_JOBS; \
  76         $(MAKE) $*
  77
  78 check-coverage-report:
  79         @if test ! -d "$(PERL_COVERAGE_DB)"; then \
  80           echo "No coverage database found in '$(PERL_COVERAGE_DB)'." >&2; \
  81           echo "Please run \"make check-coverage\" first" >&2; \
  82           exit 1; \
  83         fi
  84         $(PERL_COVER) $(PERL_COVER_FLAGS) "$(PERL_COVERAGE_DB)"
  85
  86 # We don't use direct dependencies here because we'd like to be able
  87 # to invoke the report even after interrupted check-coverage.
  88 check-coverage: check-coverage-run
  89         $(MAKE) check-coverage-report
  90
  91 recheck-coverage: recheck-coverage-run
  92         $(MAKE) check-coverage-report
  93
  94 clean-coverage:
  95         rm -rf "$(PERL_COVERAGE_DB)"
  96 clean-local: clean-coverage
  97
  98 .PHONY: check-coverage recheck-coverage check-coverage-run \
  99         recheck-coverage-run check-coverage-report clean-coverage
 100
 101
 102 # ---------------------------------------------------- #
 103 #  Tagging and/or uploading stable and beta releases.  #
 104 # ---------------------------------------------------- #
 105
 106 GIT = git
 107
 108 EXTRA_DIST += lib/gnupload
 109
 110 # First component of a version number (mandatory).
 111 rx-0 = ^[1-9][0-9]*
 112 # Later components of a version number (optional).
 113 rx-1 = \.[0-9][0-9]*
 114 # Used in recipes to decide which kind of release we are.
 115 stable_major_version_rx = $(rx-0)\.0$$
 116 stable_minor_version_rx = $(rx-0)$(rx-1)$$
 117 stable_micro_version_rx = $(rx-0)$(rx-1)$(rx-1)$$
 118 beta_version_rx = $(rx-0)($(rx-1)){1,2}[bdfhjlnprtvxz]$$
 119 alpha_version_rx  = $(rx-0)($(rx-1)){1,2}[acegikmoqsuwy]$$
 120 match_version = echo "$(VERSION)" | $(EGREP) >/dev/null
 121
 122 # Check that we don't have uncommitted or unstaged changes.
 123 # TODO: Maybe the git suite already offers a shortcut to verify if the
 124 # TODO: working directory is "clean" or not?  If yes, use that instead
 125 # TODO: of duplicating the logic here.
 126 git_must_have_clean_workdir = \
 127   $(GIT) rev-parse --verify HEAD >/dev/null \
 128     && $(GIT) update-index -q --refresh \
 129     && $(GIT) diff-files --quiet \
 130     && $(GIT) diff-index --quiet --cached HEAD \
 131     || { echo "$@: you have uncommitted or unstaged changes" >&2; exit 1; }
 132
 133 determine_release_type = \
 134   if $(match_version) '$(stable_major_version_rx)'; then \
 135     release_type='Major release'; \
 136     announcement_type='major release'; \
 137     dest=ftp; \
 138   elif $(match_version) '$(stable_minor_version_rx)'; then \
 139     release_type='Minor release'; \
 140     announcement_type='minor release'; \
 141     dest=ftp; \
 142   elif $(match_version) '$(stable_micro_version_rx)'; then \
 143     release_type='Micro release'; \
 144     announcement_type='maintenance release'; \
 145     dest=ftp; \
 146   elif $(match_version) '$(beta_version_rx)'; then \
 147     release_type='Beta release'; \
 148     announcement_type='test release'; \
 149     dest=alpha; \
 150   elif $(match_version) '$(alpha_version_rx)'; then \
 151     echo "$@: improper version '$(VERSION)' for a release" >&2; \
 152     if test -n '$(strip $(DEVEL_SNAPSHOT))'; then \
 153       echo "$@: continuing anyway since DEVEL_SNAPSHOT is set" >&2; \
 154       release_type='Development snapshot'; \
 155       announcement_type='development snapshot'; \
 156       dest=alpha; \
 157     else \
 158       exit 1; \
 159     fi; \
 160   else \
 161     echo "$@: invalid version number '$(VERSION)'" >&2; \
 162     exit 1; \
 163   fi
 164
 165 # Help the debugging of $(determine_release_type) and related code.
 166 print-release-type:
 167         @$(determine_release_type); \
 168          echo "$$release_type $(VERSION);" \
 169               "it will be announced as a \"$$announcement_type\""
 170
 171 git-tag-release: maintainer-check
 172         @set -e -u; \
 173         case '$(AM_TAG_DRYRUN)' in \
 174           ""|[nN]|[nN]o|NO) run="";; \
 175           *) run="echo Running:";; \
 176         esac; \
 177         $(git_must_have_clean_workdir); \
 178         $$run $(GIT) tag -s "v$(VERSION)" -m "$(PACKAGE) $(VERSION)"
 179
 180 git-upload-release:
 181         @# Check this is a version we can cut a release (either test
 182         @# or stable) from.
 183         @$(determine_release_type)
 184         @# The repository must be clean.
 185         @$(git_must_have_clean_workdir)
 186         @# Check that we are releasing from a valid tag.
 187         @tag=`$(GIT) describe` \
 188           && case $$tag in "v$(VERSION)") true;; *) false;; esac \
 189           || { echo "$@: you can only create a release from a tagged" \
 190                     "version" >&2; \
 191                exit 1; }
 192         @# Build the distribution tarball(s).
 193         $(MAKE) dist
 194         @# Upload it to the correct FTP repository.
 195         @$(determine_release_type) \
 196           && dest=$$dest.gnu.org:automake \
 197           && echo "Will upload to $$dest: $(DIST_ARCHIVES)" \
 198           && $(srcdir)/lib/gnupload $(GNUPLOADFLAGS) --to $$dest \
 199                                     $(DIST_ARCHIVES)
 200
 201 .PHONY: print-release-type git-upload-release git-tag-release
 202
 203
 204 # ------------------------------------------------------------------ #
 205 #  Explore differences of autogenerated files in different commits.  #
 206 # ------------------------------------------------------------------ #
 207
 208 # Visually comparing differences between the Makefile.in files in
 209 # automake's own build system as generated in two different branches
 210 # might help to catch bugs and blunders.  This has already happened a
 211 # few times in the past, when we used to version-control Makefile.in.
 212 autodiffs:
 213         @set -u; \
 214          NEW_COMMIT=$${NEW_COMMIT-"HEAD"}; \
 215          OLD_COMMIT=$${OLD_COMMIT-"HEAD~1"}; \
 216          am_gitdir='$(abs_top_srcdir)/.git'; \
 217          get_autofiles_from_rev () \
 218          { \
 219              rev=$$1 dir=$$2 \
 220                && echo "$@: will get files from revision $$rev" \
 221                && $(GIT) clone -q --depth 1 "$$am_gitdir" tmp \
 222                && cd tmp \
 223                && $(GIT) checkout -q "$$rev" \
 224                && echo "$@: bootstrapping $$rev" \
 225                && $(SHELL) ./bootstrap \
 226                && echo "$@: copying files from $$rev" \
 227                && makefile_ins=`find . -name Makefile.in` \
 228                && (tar cf - configure aclocal.m4 $$makefile_ins) | \
 229                   (cd .. && cd "$$dir" && tar xf -) \
 230                && cd .. \
 231                && rm -rf tmp; \
 232          }; \
 233          outdir=$@.dir \
 234            && : Before proceeding, ensure the specified revisions truly exist. \
 235            && $(GIT) --git-dir="$$am_gitdir" describe $$OLD_COMMIT >/dev/null \
 236            && $(GIT) --git-dir="$$am_gitdir" describe $$NEW_COMMIT >/dev/null \
 237            && rm -rf $$outdir \
 238            && mkdir $$outdir \
 239            && cd $$outdir \
 240            && mkdir new old \
 241            && get_autofiles_from_rev $$OLD_COMMIT old \
 242            && get_autofiles_from_rev $$NEW_COMMIT new \
 243            && exit 0
 244
 245 # With lots of eye candy; we like our developers pampered and spoiled :-)
 246 compare-autodiffs: autodiffs
 247         @set -u; \
 248         : $${COLORDIFF=colordiff} $${DIFF=diff}; \
 249         dir=autodiffs.dir; \
 250         if test ! -d "$$dir"; then \
 251           echo "$@: $$dir: Not a directory" >&2; \
 252           exit 1; \
 253         fi; \
 254         mydiff=false mypager=false; \
 255         if test -t 1; then \
 256           if ($$COLORDIFF -r . .) </dev/null >/dev/null 2>&1; then \
 257             mydiff=$$COLORDIFF; \
 258             mypager="less -R"; \
 259           else \
 260             mypager=less; \
 261           fi; \
 262         else \
 263           mypager=cat; \
 264         fi; \
 265         if test "$$mydiff" = false; then \
 266           if ($$DIFF -r -u . .); then \
 267             mydiff=$$DIFF; \
 268           else \
 269             echo "$@: no good-enough diff program specified" >&2; \
 270             exit 1; \
 271           fi; \
 272         fi; \
 273         st=0; $$mydiff -r -u $$dir/old $$dir/new | $$mypager || st=$$?; \
 274         rm -rf $$dir; \
 275         exit $$st
 276 .PHONY: autodiffs compare-autodiffs
 277
 278 # ---------------------------------------------- #
 279 #  Help writing the announcement for a release.  #
 280 # ---------------------------------------------- #
 281
 282 PACKAGE_MAILINGLIST = automake@gnu.org
 283
 284 announcement: DEVEL_SNAPSHOT = yes
 285 announcement: NEWS
 286         $(AM_V_GEN): \
 287           && rm -f $@ $@-t \
 288           && $(determine_release_type) \
 289           && ftp_base="https://$$dest.gnu.org/gnu/$(PACKAGE)" \
 290           && X () { printf '%s\n' "$$*" >> $@-t; } \
 291           && X "We are pleased to announce the $(PACKAGE_NAME) $(VERSION)" \
 292                "$$announcement_type." \
 293           && X \
 294           && X "**TODO** Brief description of the release here." \
 295           && X \
 296           && X "**TODO** This description can span multiple paragraphs." \
 297           && X \
 298           && X "See below for the detailed list of changes since the" \
 299           && X "previous version, as summarized by the NEWS file." \
 300           && X \
 301           && X "Download here:" \
 302           && X \
 303           && X "  $$ftp_base/$(PACKAGE)-$(VERSION).tar.gz" \
 304           && X "  $$ftp_base/$(PACKAGE)-$(VERSION).tar.xz" \
 305           && X \
 306           && X "Please report bugs and problems to" \
 307                "<$(PACKAGE_BUGREPORT)>," \
 308           && X "and send general comments and feedback to" \
 309                "<$(PACKAGE_MAILINGLIST)>." \
 310           && X \
 311           && X "Thanks to everyone who has reported problems, contributed" \
 312           && X "patches, and helped testing Automake!" \
 313           && X \
 314           && X "-*-*-*-" \
 315           && X \
 316           && $(AWK) '\
 317                 ($$0 ~ /^New in .*:/) { wait_for_end=1; } \
 318                 (/^~~~/ && wait_for_end) { print; exit(0) } \
 319                 { print } \
 320              ' <$(srcdir)/NEWS >> $@-t \
 321           && mv -f $@-t $@
 322 .PHONY: announcement
 323 CLEANFILES += announcement
 324
 325 # --------------------------------------------------------------------- #
 326 #  Synchronize third-party files that are committed in our repository.  #
 327 # --------------------------------------------------------------------- #
 328
 329 # Git repositories on Savannah.
 330 git-sv-host = git.savannah.gnu.org
 331
 332 # Some repositories we sync files from.
 333 SV_GIT_CF = 'https://$(git-sv-host)/gitweb/?p=config.git;a=blob_plain;hb=HEAD;f='
 334 SV_GIT_GL = 'https://$(git-sv-host)/gitweb/?p=gnulib.git;a=blob_plain;hb=HEAD;f='
 335
 336 # Files that we fetch and which we compare against.
 337 # Note that the 'lib/COPYING' file must still be synced by hand.
 338 FETCHFILES = \
 339   $(SV_GIT_CF)config.guess \
 340   $(SV_GIT_CF)config.sub \
 341   $(SV_GIT_GL)build-aux/texinfo.tex \
 342   $(SV_GIT_GL)build-aux/gendocs.sh \
 343   $(SV_GIT_GL)build-aux/gitlog-to-changelog \
 344   $(SV_GIT_GL)build-aux/gnupload \
 345   $(SV_GIT_GL)build-aux/update-copyright \
 346   $(SV_GIT_GL)doc/gendocs_template \
 347   $(SV_GIT_GL)doc/INSTALL
 348
 349 # Fetch the latest versions of few scripts and files we care about.
 350 # A retrieval failure or a copying failure usually mean serious problems,
 351 # so we'll just bail out if 'wget' or 'cp' fail.
 352 fetch:
 353         $(AM_V_at)rm -rf Fetchdir
 354         $(AM_V_at)mkdir Fetchdir
 355         $(AM_V_GEN)set -e; \
 356         if $(AM_V_P); then wget_opts=; else wget_opts=-nv; fi; \
 357         for url in $(FETCHFILES); do \
 358            file=`printf '%s\n' "$$url" | sed 's|^.*/||; s|^.*=||'`; \
 359            $(WGET) $$wget_opts "$$url" -O Fetchdir/$$file || exit 1; \
 360            if cmp Fetchdir/$$file $(srcdir)/lib/$$file >/dev/null; then \
 361              : Nothing to do; \
 362            else \
 363              echo "$@: updating file $$file"; \
 364              cp Fetchdir/$$file $(srcdir)/lib/$$file || exit 1; \
 365            fi; \
 366         done
 367         $(AM_V_at)rm -rf Fetchdir
 368 .PHONY: fetch
 369
 370 # ---------------------------------------------------------------------- #
 371 #  Generate and upload manuals in several formats, for the GNU website.  #
 372 # ---------------------------------------------------------------------- #
 373
 374 web_manual_dir = doc/web-manual
 375
 376 RSYNC = rsync
 377 CVS = cvs
 378 CVSU = cvsu
 379 CVS_USER = $${USER}
 380 WEBCVS_ROOT = cvs.savannah.gnu.org:/web
 381 CVS_RSH = ssh
 382 export CVS_RSH
 383
 384 .PHONY: web-manual web-manual-update
 385 web-manual web-manual-update: t = $@.dir
 386
 387 # Build manual in several formats.  Note to the recipe:
 388 # 1. The symlinking of automake.texi into the temporary directory is
 389 #    required to pacify extra checks from gendocs.sh.
 390 # 2. The redirection to /dev/null before the invocation of gendocs.sh
 391 #    is done to better respect silent rules.
 392 web-manual:
 393         $(AM_V_at)rm -rf $(web_manual_dir) $t
 394         $(AM_V_at)mkdir $t
 395         $(AM_V_at)$(LN_S) '$(abs_srcdir)/doc/$(PACKAGE).texi' '$t/'
 396         $(AM_V_GEN)cd $t \
 397           && GENDOCS_TEMPLATE_DIR='$(abs_srcdir)/lib' \
 398           && export GENDOCS_TEMPLATE_DIR \
 399           && if $(AM_V_P); then :; else exec >/dev/null 2>&1; fi \
 400           && $(SHELL) '$(abs_srcdir)/lib/gendocs.sh' \
 401              -I '$(abs_srcdir)/doc' --email $(PACKAGE_BUGREPORT) \
 402              $(PACKAGE) '$(PACKAGE_NAME)'
 403         $(AM_V_at)mkdir $(web_manual_dir)
 404         $(AM_V_at)mv -f $t/manual/* $(web_manual_dir)
 405         $(AM_V_at)rm -rf $t
 406         @! $(AM_V_P) || ls -l $(web_manual_dir)
 407
 408 # Upload manual to www.gnu.org, using CVS (sigh!)
 409 web-manual-update:
 410         $(AM_V_at)$(determine_release_type); \
 411         case $$release_type in \
 412           [Mm]ajor\ release|[Mm]inor\ release|[Mm]icro\ release);; \
 413           *) echo "Cannot upload manuals from a \"$$release_type\"" >&2; \
 414              exit 1;; \
 415         esac
 416         $(AM_V_at)test -f $(web_manual_dir)/$(PACKAGE).html || { \
 417           echo 'You have to run "$(MAKE) web-manual" before' \
 418                'invoking "$(MAKE) $@"' >&2; \
 419           exit 1; \
 420         }
 421         $(AM_V_at)rm -rf $t
 422         $(AM_V_at)mkdir $t
 423         $(AM_V_at)cd $t \
 424           && $(CVS) -z3 -d :ext:$(CVS_USER)@$(WEBCVS_ROOT)/$(PACKAGE) \
 425                     co $(PACKAGE)
 426         @# According to the rsync manpage, "a trailing slash on the
 427         @# source [...] avoids creating an additional directory
 428         @# level at the destination".  So the trailing '/' after
 429         @# '$(web_manual_dir)' below is intended.
 430         $(AM_V_at)$(RSYNC) -avP $(web_manual_dir)/ $t/$(PACKAGE)/manual
 431         $(AM_V_GEN): \
 432           && cd $t/$(PACKAGE)/manual \
 433           && new_files=`$(CVSU) --types='?'` \
 434           && new_files=`echo "$$new_files" | sed s/^..//` \
 435           && { test -z "$$new_files" || $(CVS) add -ko $$new_files; } \
 436           && $(CVS) ci -m $(VERSION)
 437         $(AM_V_at)rm -rf $t
 438 .PHONY: web-manual-update
 439
 440 clean-web-manual:
 441         $(AM_V_at)rm -rf $(web_manual_dir)
 442 .PHONY: clean-web-manual
 443 clean-local: clean-web-manual
 444
 445 EXTRA_DIST += lib/gendocs.sh lib/gendocs_template
 446
 447 # ------------------------------------------------ #
 448 #  Update copyright years of all committed files.  #
 449 # ------------------------------------------------ #
 450
 451 EXTRA_DIST += lib/update-copyright
 452
 453 update_copyright_env = \
 454   UPDATE_COPYRIGHT_FORCE=1 \
 455   UPDATE_COPYRIGHT_USE_INTERVALS=2
 456
 457 # In addition to the several README files, these as well are
 458 # not expected to have a copyright notice.
 459 files_without_copyright = \
 460   .autom4te.cfg \
 461   .dir-locals.el \
 462   .git-log-fix \
 463   .gitattributes \
 464   .gitignore \
 465   INSTALL \
 466   COPYING \
 467   AUTHORS \
 468   THANKS \
 469   lib/INSTALL \
 470   lib/COPYING
 471
 472 # This script is in the public domain.
 473 files_without_copyright += lib/mkinstalldirs
 474
 475 # This script has an MIT-style license
 476 files_without_copyright += lib/install-sh
 477
 478 # The UPDATE_COPYRIGHT_YEAR environment variable is honoured by the
 479 # 'lib/update-copyright' script.
 480 .PHONY: update-copyright
 481 update-copyright:
 482         $(AM_V_GEN)set -e; \
 483         if test -n "$$UPDATE_COPYRIGHT_YEAR"; then \
 484            current_year=$$UPDATE_COPYRIGHT_YEAR; \
 485         else \
 486           current_year=`date +%Y` && test -n "$$current_year" \
 487             || { echo "$@: cannot get current year" >&2; exit 1; }; \
 488         fi; \
 489         sed -i "/^RELEASE_YEAR=/s/=.*$$/=$$current_year/" \
 490           bootstrap configure.ac; \
 491         excluded_re=`( \
 492           for url in $(FETCHFILES); do echo "$$url"; done \
 493             | sed -e 's!^.*/!!' -e 's!^.*=!!' -e 's!^!lib/!' \
 494           && for f in $(files_without_copyright); do echo $$f; done \
 495         ) | sed -e '$$!s,$$,|,' | tr -d '\012\015'`; \
 496         $(GIT) ls-files \
 497           | grep -Ev '(^|/)README$$' \
 498           | grep -Ev '^PLANS(/|$$)' \
 499           | grep -Ev "^($$excluded_re)$$" \
 500           | $(update_copyright_env) xargs $(srcdir)/lib/$@
 501
 502 # -------------------------------------------------------------- #
 503 #  Run the testsuite with the least supported autoconf version.  #
 504 # -------------------------------------------------------------- #
 505
 506 gnu-ftp = https://ftp.gnu.org/gnu
 507
 508 # Various shorthands: version, name, package name, tarball name,
 509 # tarball location, installation directory.
 510 ac-v = $(required_autoconf_version)
 511 ac-n = autoconf
 512 ac-p = $(ac-n)-$(ac-v)
 513 ac-t = $(ac-p).tar.gz
 514 ac-l = maintainer/$(ac-t)
 515 ac-d = maintainer/$(ac-p)
 516
 517 fetch-minimal-autoconf: o = $(ac-l)
 518 fetch-minimal-autoconf:
 519         $(AM_V_at)$(MKDIR_P) $(dir $o)
 520         $(AM_V_at)rm -f $o $o-t
 521         $(AM_V_GEN)$(WGET) -O $o-t $(gnu-ftp)/$(ac-n)/$(ac-t)
 522         $(AM_V_at)chmod a-w $o-t && mv -f $o-t $o && ls -l $o
 523 .PHONY: fetch-minimal-autoconf
 524
 525 build-minimal-autoconf:
 526         $(AM_V_GEN):; \
 527         test -f $(ac-l) || { \
 528           echo "$@: tarball $(ac-l) seems missing." >&2; \
 529           echo "$@: have you run '$(MAKE) fetch-minimal-autoconf'?" >&2; \
 530           exit 1; \
 531         }; \
 532           set -x \
 533           && $(PERL) $(srcdir)/t/ax/deltree.pl $(ac-d) \
 534           && $(MKDIR_P) $(ac-d) \
 535           && cd $(ac-d) \
 536           && tar xzf '$(CURDIR)/$(ac-l)' \
 537           && mv $(ac-p) src \
 538           && mkdir build \
 539           && cd build \
 540           && env CONFIG_SHELL='$(SHELL)' $(SHELL) ../src/configure \
 541                --prefix='$(CURDIR)/$(ac-d)' CONFIG_SHELL='$(SHELL)' \
 542           && $(MAKE) install
 543         $(AM_V_at)echo ' ======' && $(ac-d)/bin/autoconf --version
 544 .PHONY: build-minimal-autoconf
 545
 546 check-minimal-autoconf:
 547         $(AM_V_at)p='$(ac-d)/bin/autoconf'; \
 548           if test ! -f "$$p" || test ! -x "$$p"; then \
 549             echo "$@: program '$$p' seems missing." >&2; \
 550             echo "$@: have you run '$(MAKE) build-minimal-autoconf'?" >&2; \
 551             exit 1; \
 552           fi
 553         $(AM_V_GEN): \
 554           && PATH='$(CURDIR)/$(ac-d)/bin$(PATH_SEPARATOR)'$$PATH \
 555           && export PATH \
 556           && AUTOCONF=autoconf \
 557           && AUTOHEADER=autoheader \
 558           && AUTORECONF=autoreconf \
 559           && AUTOM4TE=autom4te \
 560           && AUTOUPDATE=autoupdate \
 561           && export AUTOCONF AUTOHEADER AUTORECONF AUTOM4TE AUTOUPDATE \
 562           && echo === check autoconf version '(must be = $(ac-v))' \
 563           && autoconf --version \
 564           && autoconf --version | sed -e 's/^/ /; s/$$/ /' -e 1q \
 565                | $(FGREP) '$(ac-v)' >/dev/null \
 566           && echo === configure \
 567           && $(srcdir)/configure $(shell ./config.status --config) \
 568           && echo === build and test \
 569           && $(MAKE) check
 570 .PHONY: check-minimal-autoconf
 571
 572
 573 # --------------------------------------------------------------- #
 574 #  Testing on real-world packages can help us avoid regressions.  #
 575 # --------------------------------------------------------------- #
 576
 577 #
 578 # NOTE (from Stefano Lattarini):
 579 #
 580 # This section is mostly hacky and ad-hoc, but works for me and
 581 # on my system.  And while far from clean, it should help catching
 582 # real regressions on real world packages, which is important.
 583 # Ideas about how to improve this and make it more generic, portable,
 584 # clean, etc., are welcome.
 585 #
 586
 587 # Tiny sample package.
 588 FEW_PACKAGES += hello
 589 # Smallish package using recursive make setup.
 590 FEW_PACKAGES += make
 591 # Medium-size package using non-recursive make setup.
 592 FEW_PACKAGES += coreutils
 593
 594 ALL_PACKAGES = \
 595   $(FEW_PACKAGES) \
 596   autoconf \
 597   bison \
 598   grep \
 599   tar \
 600   diffutils \
 601   smalltalk
 602
 603 pkg-targets = check dist
 604
 605 # Note: "ttp" stays for "Third Party Package".
 606
 607 ttp-check ttp-check-all: do-clone = $(GIT) clone --verbose
 608 ttp-check: ttp-packages = $(FEW_PACKAGES)
 609 ttp-check-all: ttp-packages = $(ALL_PACKAGES)
 610
 611 # Note: some packages depend on pkg-config, and its provided macros.
 612 ttp-check ttp-check-all: t/pkg-config-macros.log
 613         @set -e; \
 614         $(setup_autotools_paths); \
 615         skip_all_ () \
 616         { \
 617           echo "***" >&2; \
 618           echo "*** $@: WARNING: $$@" >&2; \
 619           echo "*** $@: WARNING: some packages might fail to bootstrap" >&2; \
 620           echo "***" >&2;  \
 621         }; \
 622         . t/pkg-config-macros.dir/get.sh || exit 1; \
 623         mkdir $@.d && cd $@.d || exit 1; \
 624         for p in $(ttp-packages); do \
 625             echo; \
 626             echo ========  BEGIN TTP $$p  =========; \
 627             echo; \
 628             set -x; \
 629             $(do-clone) git://$(git-sv-host)/$$p.git || exit 1; \
 630             ( \
 631               cd $$p \
 632                 && ls -l \
 633                 && if test -f bootstrap; then \
 634                      ./bootstrap --no-git; \
 635                    else \
 636                      $$AUTORECONF -fvi; \
 637                    fi \
 638                 && ./configure \
 639                 && if test $$p = make; then \
 640                      $(MAKE) update; \
 641                    else :; fi \
 642                 && for t in $(pkg-targets); do \
 643                      $(MAKE) $$t WERROR_CFLAGS= || exit 1; \
 644                    done \
 645             ) || exit 1; \
 646             set +x; \
 647             echo; \
 648             echo ========  END TTP $$p  =========; \
 649             echo; \
 650          done
 651 ifndef keep-ttp-dir
 652         rm -rf $@.d
 653 endif
 654
 655 # Alias for lazy typists.
 656 ttp: ttp-check
 657 ttp-all: ttp-check-all
 658
 659 .PHONY: ttp ttp-check ttp-all ttp-check-all