Makefile

   1 # Copyright (C) 1991-2019 Free Software Foundation, Inc.
   2 # This file is part of the GNU C Library.
   3
   4 # The GNU C Library is free software; you can redistribute it and/or
   5 # modify it under the terms of the GNU Lesser General Public
   6 # License as published by the Free Software Foundation; either
   7 # version 2.1 of the License, or (at your option) any later version.
   8
   9 # The GNU C Library is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 # Lesser General Public License for more details.
  13
  14 # You should have received a copy of the GNU Lesser General Public
  15 # License along with the GNU C Library; if not, see
  16 # <https://www.gnu.org/licenses/>.
  17
  18 #
  19 #       Master Makefile for the GNU C library
  20 #
  21 ifneq (,)
  22 This makefile requires GNU Make.
  23 endif
  24
  25 include Makeconfig
  26
  27
  28 # This is the default target; it makes everything except the tests.
  29 .PHONY: all
  30 all: lib others
  31 \f
  32 ifneq ($(AUTOCONF),no)
  33
  34 define autoconf-it
  35 @-rm -f $@.new
  36 $(AUTOCONF) $(ACFLAGS) $< > $@.new
  37 chmod a-w$(patsubst %,$(comma)a+x,$(filter .,$(@D))) $@.new
  38 mv -f $@.new $@
  39 endef
  40
  41 configure: configure.ac aclocal.m4; $(autoconf-it)
  42 %/configure: %/configure.ac aclocal.m4; $(autoconf-it)
  43 %/preconfigure: %/preconfigure.ac aclocal.m4; $(autoconf-it)
  44
  45 endif # $(AUTOCONF) = no
  46
  47
  48 # We don't want to run anything here in parallel.
  49 .NOTPARALLEL:
  50
  51 # These are the targets that are made by making them in each subdirectory.
  52 +subdir_targets := subdir_lib objects objs others subdir_mostlyclean    \
  53                    subdir_clean subdir_distclean subdir_realclean       \
  54                    tests xtests                                         \
  55                    subdir_update-abi subdir_check-abi                   \
  56                    subdir_update-all-abi                                \
  57                    subdir_echo-headers                                  \
  58                    subdir_install                                       \
  59                    subdir_objs subdir_stubs subdir_testclean            \
  60                    $(addprefix install-, no-libc.a bin lib data headers others)
  61 \f
  62 headers := limits.h values.h features.h gnu-versions.h \
  63            bits/xopen_lim.h gnu/libc-version.h stdc-predef.h \
  64            bits/libc-header-start.h
  65
  66 echo-headers: subdir_echo-headers
  67
  68 # The headers are in the include directory.
  69 subdir-dirs = include
  70 vpath %.h $(subdir-dirs)
  71
  72 # What to install.
  73 install-others = $(inst_includedir)/gnu/stubs.h
  74 install-bin-script =
  75
  76 ifeq (yes,$(build-shared))
  77 headers += gnu/lib-names.h
  78 endif
  79
  80 include Makerules
  81
  82 ifeq ($(build-programs),yes)
  83 others: $(addprefix $(objpfx),$(install-bin-script))
  84 endif
  85
  86 # Install from subdirectories too.
  87 install: subdir_install
  88
  89 # Explicit dependency so that `make install-headers' works
  90 install-headers: install-headers-nosubdir
  91
  92 # Make sure that the dynamic linker is installed before libc.
  93 $(inst_slibdir)/libc-$(version).so: elf/ldso_install
  94
  95 .PHONY: elf/ldso_install
  96 elf/ldso_install:
  97         $(MAKE) -C $(@D) $(@F)
  98
  99 # Create links for shared libraries using the `ldconfig' program if possible.
 100 # Ignore the error if we cannot update /etc/ld.so.cache.
 101 ifeq (no,$(cross-compiling))
 102 ifeq (yes,$(build-shared))
 103 install: install-symbolic-link
 104 .PHONY: install-symbolic-link
 105 install-symbolic-link: subdir_install
 106         $(symbolic-link-prog) $(symbolic-link-list)
 107         rm -f $(symbolic-link-list)
 108
 109 install:
 110         -test ! -x $(elf-objpfx)ldconfig || LC_ALL=C \
 111           $(elf-objpfx)ldconfig $(addprefix -r ,$(install_root)) \
 112                                 $(slibdir) $(libdir)
 113 ifneq (no,$(PERL))
 114 ifeq (/usr,$(prefix))
 115 ifeq (,$(install_root))
 116         LD_SO=$(ld.so-version) CC="$(CC)" $(PERL) scripts/test-installation.pl $(common-objpfx)
 117 endif
 118 endif
 119 endif
 120 endif
 121 endif
 122
 123 # Build subdirectory lib objects.
 124 lib-noranlib: subdir_lib
 125
 126 ifeq (yes,$(build-shared))
 127 # Build the shared object from the PIC object library.
 128 lib: $(common-objpfx)libc.so $(common-objpfx)linkobj/libc.so
 129 endif # $(build-shared)
 130
 131 # Used to build testrun.sh.
 132 define testrun-script
 133 #!/bin/bash
 134 builddir=`dirname "$$0"`
 135 GCONV_PATH="$${builddir}/iconvdata"
 136
 137 usage () {
 138   echo "usage: $$0 [--tool=strace] PROGRAM [ARGUMENTS...]" 2>&1
 139   echo "       $$0 --tool=valgrind PROGRAM [ARGUMENTS...]" 2>&1
 140   exit 1
 141 }
 142
 143 toolname=default
 144 while test $$# -gt 0 ; do
 145   case "$$1" in
 146     --tool=*)
 147       toolname="$${1:7}"
 148       shift
 149       ;;
 150     --*)
 151       usage
 152       ;;
 153     *)
 154       break
 155       ;;
 156   esac
 157 done
 158
 159 if test $$# -eq 0 ; then
 160   usage
 161 fi
 162
 163 case "$$toolname" in
 164   default)
 165     exec $(subst $(common-objdir),"$${builddir}", $(test-program-prefix)) \
 166       $${1+"$$@"}
 167     ;;
 168   strace)
 169     exec strace $(patsubst %, -E%, $(run-program-env)) \
 170       $(test-via-rtld-prefix) $${1+"$$@"}
 171     ;;
 172   valgrind)
 173     exec env $(run-program-env) valgrind $(test-via-rtld-prefix) $${1+"$$@"}
 174     ;;
 175   *)
 176     usage
 177     ;;
 178 esac
 179 endef
 180
 181 # This is a handy script for running any dynamically linked program against
 182 # the current libc build for testing.
 183 $(common-objpfx)testrun.sh: $(common-objpfx)config.make \
 184                             $(..)Makeconfig $(..)Makefile
 185         $(file >$@T,$(testrun-script))
 186         chmod a+x $@T
 187         mv -f $@T $@
 188 postclean-generated += testrun.sh
 189
 190 define debugglibc
 191 #!/bin/bash
 192
 193 SOURCE_DIR="$(CURDIR)"
 194 BUILD_DIR="$(common-objpfx)"
 195 CMD_FILE="$(common-objpfx)debugglibc.gdb"
 196 DIRECT=true
 197 SYMBOLSFILE=true
 198 unset TESTCASE
 199 unset BREAKPOINTS
 200 unset ENVVARS
 201
 202 usage()
 203 {
 204 cat << EOF
 205 Usage: $$0 [OPTIONS] <testcase>
 206
 207   where <testcase> is the path to the program being tested.
 208
 209 Options:
 210
 211   -h, --help
 212         Prints this message and leaves.
 213
 214   The following options require one argument:
 215
 216   -b, --breakpoint
 217         Breakpoints to set at the beginning of the execution
 218         (each breakpoint demands its own -b option, e.g. -b foo -b bar)
 219   -e, --environment-variable
 220         Environment variables to be set with 'exec-wrapper env' in GDB
 221         (each environment variable demands its own -e option, e.g.
 222         -e FOO=foo -e BAR=bar)
 223
 224   The following options do not take arguments:
 225
 226   -i, --no-direct
 227         Selects whether to pass the flag --direct to gdb.
 228         Required for glibc test cases and not allowed for non-glibc tests.
 229         Default behaviour is to pass the flag --direct to gdb.
 230   -s, --no-symbols-file
 231         Do not tell GDB to load debug symbols from the testcase.
 232 EOF
 233 }
 234
 235 # Parse input options
 236 while [[ $$# > 0 ]]
 237 do
 238   key="$$1"
 239   case $$key in
 240     -h|--help)
 241       usage
 242       exit 0
 243       ;;
 244     -b|--breakpoint)
 245       BREAKPOINTS="break $$2\n$$BREAKPOINTS"
 246       shift
 247       ;;
 248     -e|--environment-variable)
 249       ENVVARS="$$2 $$ENVVARS"
 250       shift
 251       ;;
 252     -i|--no-direct)
 253       DIRECT=false
 254       ;;
 255     -s|--no-symbols-file)
 256       SYMBOLSFILE=false
 257       ;;
 258     *)
 259       TESTCASE=$$1
 260       ;;
 261   esac
 262   shift
 263 done
 264
 265 # Check for required argument
 266 if [ ! -v TESTCASE ]
 267 then
 268   usage
 269   exit 1
 270 fi
 271
 272 # Expand environment setup command
 273 if [ -v ENVVARS ]
 274 then
 275   ENVVARSCMD="set exec-wrapper env $$ENVVARS"
 276 fi
 277
 278 # Expand direct argument
 279 if [ "$$DIRECT" == true ]
 280 then
 281   DIRECT="--direct"
 282 else
 283   DIRECT=""
 284 fi
 285
 286 # Expand symbols loading command
 287 if [ "$$SYMBOLSFILE" == true ]
 288 then
 289   SYMBOLSFILE="add-symbol-file $${TESTCASE}"
 290 else
 291   SYMBOLSFILE=""
 292 fi
 293
 294 # GDB commands template
 295 template ()
 296 {
 297 cat <<EOF
 298 set environment C -E -x c-header
 299 set auto-load safe-path $${BUILD_DIR}/nptl_db:\$$debugdir:\$$datadir/auto-load
 300 set libthread-db-search-path $${BUILD_DIR}/nptl_db
 301 __ENVVARS__
 302 __SYMBOLSFILE__
 303 break _dl_start_user
 304 run --library-path $(rpath-link):$${BUILD_DIR}/nptl_db \
 305 __TESTCASE__ __DIRECT__
 306 __BREAKPOINTS__
 307 EOF
 308 }
 309
 310 # Generate the commands file for gdb initialization
 311 template | sed \
 312   -e "s|__ENVVARS__|$$ENVVARSCMD|" \
 313   -e "s|__SYMBOLSFILE__|$$SYMBOLSFILE|" \
 314   -e "s|__TESTCASE__|$$TESTCASE|" \
 315   -e "s|__DIRECT__|$$DIRECT|" \
 316   -e "s|__BREAKPOINTS__|$$BREAKPOINTS|" \
 317   > $$CMD_FILE
 318
 319 echo
 320 echo "Debugging glibc..."
 321 echo "Build directory  : $$BUILD_DIR"
 322 echo "Source directory : $$SOURCE_DIR"
 323 echo "GLIBC Testcase   : $$TESTCASE"
 324 echo "GDB Commands     : $$CMD_FILE"
 325 echo "Env vars         : $$ENVVARS"
 326 echo
 327
 328 # Start the test case debugging in two steps:
 329 #   1. the following command invokes gdb to run the loader;
 330 #   2. the commands file tells the loader to run the test case.
 331 gdb -q \
 332   -x $${CMD_FILE} \
 333   -d $${SOURCE_DIR} \
 334   $${BUILD_DIR}/elf/ld.so
 335 endef
 336
 337 # This is another handy script for debugging dynamically linked program
 338 # against the current libc build for testing.
 339 $(common-objpfx)debugglibc.sh: $(common-objpfx)config.make \
 340                             $(..)Makeconfig $(..)Makefile
 341         $(file >$@T,$(debugglibc))
 342         chmod a+x $@T
 343         mv -f $@T $@
 344 postclean-generated += debugglibc.sh debugglibc.gdb
 345
 346 others: $(common-objpfx)testrun.sh $(common-objpfx)debugglibc.sh
 347 \f
 348 # Makerules creates a file `stubs' in each subdirectory, which
 349 # contains `#define __stub_FUNCTION' for each function defined in that
 350 # directory which is a stub.
 351 # Here we paste all of these together into <gnu/stubs.h>.
 352
 353 subdir-stubs := $(foreach dir,$(subdirs),$(common-objpfx)$(dir)/stubs)
 354
 355 ifndef abi-variants
 356 installed-stubs = $(inst_includedir)/gnu/stubs.h
 357 else
 358 installed-stubs = $(inst_includedir)/gnu/stubs-$(default-abi).h
 359
 360 $(inst_includedir)/gnu/stubs.h: $(+force)
 361         $(make-target-directory)
 362         { \
 363          echo '/* This file is automatically generated.';\
 364          echo "   This file selects the right generated file of \`__stub_FUNCTION' macros";\
 365          echo '   based on the architecture being compiled for.  */'; \
 366          echo ''; \
 367          $(foreach h,$(abi-includes), echo '#include <$(h)>';) \
 368          echo ''; \
 369          $(foreach v,$(abi-variants),\
 370          $(if $(abi-$(v)-condition),\
 371          echo '#if $(abi-$(v)-condition)'; \
 372          echo '# include <gnu/stubs-$(v).h>'); \
 373          $(if $(abi-$(v)-condition),echo '#endif';) \
 374          rm -f $(@:.d=.h).new$(v); \
 375          ) \
 376         } > $(@:.d=.h).new
 377         mv -f $(@:.d=.h).new $(@:.d=.h)
 378
 379 install-others-nosubdir: $(installed-stubs)
 380 endif
 381
 382
 383 # Since stubs.h is never needed when building the library, we simplify the
 384 # hairy installation process by producing it in place only as the last part
 385 # of the top-level `make install'.  It depends on subdir_install, which
 386 # iterates over all the subdirs; subdir_install in each subdir depends on
 387 # the subdir's stubs file.  Having more direct dependencies would result in
 388 # extra iterations over the list for subdirs and many recursive makes.
 389 $(installed-stubs): include/stubs-prologue.h subdir_install
 390         $(make-target-directory)
 391         @rm -f $(objpfx)stubs.h
 392         (sed '/^@/d' $<; LC_ALL=C sort $(subdir-stubs)) > $(objpfx)stubs.h
 393         if test -r $@ && cmp -s $(objpfx)stubs.h $@; \
 394         then echo 'stubs.h unchanged'; \
 395         else $(INSTALL_DATA) $(objpfx)stubs.h $@; fi
 396         rm -f $(objpfx)stubs.h
 397 \f
 398 # This makes the Info or DVI file of the documentation from the Texinfo source.
 399 .PHONY: info dvi pdf html
 400 info dvi pdf html:
 401         $(MAKE) $(PARALLELMFLAGS) -C manual $@
 402 \f
 403 # This makes all the subdirectory targets.
 404
 405 # For each target, make it depend on DIR/target for each subdirectory DIR.
 406 $(+subdir_targets): %: $(addsuffix /%,$(subdirs))
 407
 408 # Compute a list of all those targets.
 409 all-subdirs-targets := $(foreach dir,$(subdirs),\
 410                                  $(addprefix $(dir)/,$(+subdir_targets)))
 411
 412 # The action for each of those is to cd into the directory and make the
 413 # target there.
 414 $(all-subdirs-targets):
 415         $(MAKE) $(PARALLELMFLAGS) $(subdir-target-args) $(@F)
 416
 417 define subdir-target-args
 418 subdir=$(@D)$(if $($(@D)-srcdir),\
 419 -C $($(@D)-srcdir) ..=`pwd`/,\
 420 -C $(@D) ..=../)
 421 endef
 422
 423 .PHONY: $(+subdir_targets) $(all-subdirs-targets)
 424 \f
 425 # Targets to clean things up to various degrees.
 426
 427 .PHONY: clean realclean distclean distclean-1 parent-clean parent-mostlyclean \
 428         tests-clean
 429
 430 # Subroutines of all cleaning targets.
 431 parent-mostlyclean: common-mostlyclean # common-mostlyclean is in Makerules.
 432         -rm -f $(foreach o,$(object-suffixes-for-libc),\
 433                    $(common-objpfx)$(patsubst %,$(libtype$o),c)) \
 434                $(addprefix $(objpfx),$(install-lib))
 435 parent-clean: parent-mostlyclean common-clean
 436
 437 postclean = $(addprefix $(common-objpfx),$(postclean-generated)) \
 438             $(addprefix $(objpfx),sysd-dirs sysd-rules) \
 439             $(addprefix $(objpfx),sysd-sorted soversions.mk soversions.i)
 440
 441 clean: parent-clean
 442 # This is done this way rather than having `subdir_clean' be a
 443 # dependency of this target so that libc.a will be removed before the
 444 # subdirectories are dealt with and so they won't try to remove object
 445 # files from it when it's going to be removed anyway.
 446         @$(MAKE) subdir_clean no_deps=t
 447         -rm -f $(postclean)
 448 mostlyclean: parent-mostlyclean
 449         @$(MAKE) subdir_mostlyclean no_deps=t
 450         -rm -f $(postclean)
 451
 452 tests-clean:
 453         @$(MAKE) subdir_testclean no_deps=t
 454
 455 ifneq (,$(CXX))
 456 vpath c++-types.data $(+sysdep_dirs)
 457
 458 tests-special += $(objpfx)c++-types-check.out
 459 $(objpfx)c++-types-check.out: c++-types.data scripts/check-c++-types.sh
 460         scripts/check-c++-types.sh $< $(CXX) $(filter-out -std=gnu11 $(+gccwarn-c),$(CFLAGS)) $(CPPFLAGS) > $@; \
 461         $(evaluate-test)
 462 endif
 463
 464 tests-special += $(objpfx)check-local-headers.out
 465 $(objpfx)check-local-headers.out: scripts/check-local-headers.sh
 466         AWK='$(AWK)' scripts/check-local-headers.sh \
 467           "$(includedir)" "$(objpfx)" < /dev/null > $@; \
 468         $(evaluate-test)
 469
 470 ifneq "$(headers)" ""
 471 # Special test of all the installed headers in this directory.
 472 tests-special += $(objpfx)check-installed-headers-c.out
 473 libof-check-installed-headers-c := testsuite
 474 $(objpfx)check-installed-headers-c.out: \
 475     scripts/check-installed-headers.sh $(headers)
 476         $(SHELL) $(..)scripts/check-installed-headers.sh c \
 477           "$(CC) $(filter-out -std=%,$(CFLAGS)) -D_ISOMAC $(+includes)" \
 478           $(headers) > $@; \
 479         $(evaluate-test)
 480
 481 ifneq "$(CXX)" ""
 482 tests-special += $(objpfx)check-installed-headers-cxx.out
 483 libof-check-installed-headers-cxx := testsuite
 484 $(objpfx)check-installed-headers-cxx.out: \
 485     scripts/check-installed-headers.sh $(headers)
 486         $(SHELL) $(..)scripts/check-installed-headers.sh c++ \
 487           "$(CXX) $(filter-out -std=%,$(CXXFLAGS)) -D_ISOMAC $(+includes)" \
 488           $(headers) > $@; \
 489         $(evaluate-test)
 490 endif # $(CXX)
 491
 492 tests-special += $(objpfx)check-wrapper-headers.out
 493 $(objpfx)check-wrapper-headers.out: scripts/check-wrapper-headers.py $(headers)
 494         $(PYTHON) $< --root=. --subdir=. $(headers) \
 495           --generated $(common-generated) > $@; $(evaluate-test)
 496 endif # $(headers)
 497
 498 define summarize-tests
 499 @egrep -v '^(PASS|XFAIL):' $(objpfx)$1 || true
 500 @echo "Summary of test results$2:"
 501 @sed 's/:.*//' < $(objpfx)$1 | sort | uniq -c
 502 @! egrep -q -v '^(X?PASS|XFAIL|UNSUPPORTED):' $(objpfx)$1
 503 endef
 504
 505 # The intention here is to do ONE install of our build into the
 506 # testroot.pristine/ directory, then rsync (internal to
 507 # support/test-container) that to testroot.root/ at the start of each
 508 # test.  That way we can promise each test a "clean" install, without
 509 # having to do the install for each test.
 510 #
 511 # In addition, we have to copy some files (which we build) into this
 512 # root in addition to what glibc installs.  For example, many tests
 513 # require additional programs including /bin/sh, /bin/true, and
 514 # /bin/echo, all of which we build below to limit library dependencies
 515 # to just those things in glibc and language support libraries which
 516 # we also copy into the into the rootfs.  To determine what language
 517 # support libraries we need we build a "test" program in either C or
 518 # (if available) C++ just so we can copy in any shared objects
 519 # (which we do not build) that GCC-compiled programs depend on.
 520
 521
 522 ifeq (,$(CXX))
 523 LINKS_DSO_PROGRAM = links-dso-program-c
 524 else
 525 LINKS_DSO_PROGRAM = links-dso-program
 526 endif
 527
 528 $(tests-container) $(addsuffix /tests,$(subdirs)) : \
 529                 $(objpfx)testroot.pristine/install.stamp
 530 $(objpfx)testroot.pristine/install.stamp :
 531         test -d $(objpfx)testroot.pristine || \
 532           mkdir $(objpfx)testroot.pristine
 533         # We need a working /bin/sh for some of the tests.
 534         test -d $(objpfx)testroot.pristine/bin || \
 535           mkdir $(objpfx)testroot.pristine/bin
 536         cp $(objpfx)support/shell-container $(objpfx)testroot.pristine/bin/sh
 537         cp $(objpfx)support/echo-container $(objpfx)testroot.pristine/bin/echo
 538         cp $(objpfx)support/true-container $(objpfx)testroot.pristine/bin/true
 539 ifeq ($(run-built-tests),yes)
 540         # Copy these DSOs first so we can overwrite them with our own.
 541         for dso in `$(test-wrapper-env) LD_TRACE_LOADED_OBJECTS=1  \
 542                 $(rtld-prefix) \
 543                 $(objpfx)testroot.pristine/bin/sh \
 544                 | grep / | sed 's/^[^/]*//' | sed 's/ .*//'` ;\
 545           do \
 546             test -d `dirname $(objpfx)testroot.pristine$$dso` || \
 547               mkdir -p `dirname $(objpfx)testroot.pristine$$dso` ;\
 548             $(test-wrapper) cp $$dso $(objpfx)testroot.pristine$$dso ;\
 549           done
 550         for dso in `$(test-wrapper-env) LD_TRACE_LOADED_OBJECTS=1  \
 551                 $(rtld-prefix) \
 552                 $(objpfx)support/$(LINKS_DSO_PROGRAM) \
 553                 | grep / | sed 's/^[^/]*//' | sed 's/ .*//'` ;\
 554           do \
 555             test -d `dirname $(objpfx)testroot.pristine$$dso` || \
 556               mkdir -p `dirname $(objpfx)testroot.pristine$$dso` ;\
 557             $(test-wrapper) cp $$dso $(objpfx)testroot.pristine$$dso ;\
 558           done
 559 endif
 560         $(MAKE) install DESTDIR=$(objpfx)testroot.pristine \
 561           subdirs='$(sorted-subdirs)'
 562         touch $(objpfx)testroot.pristine/install.stamp
 563
 564 tests-special-notdir = $(patsubst $(objpfx)%, %, $(tests-special))
 565 tests: $(tests-special)
 566         $(..)scripts/merge-test-results.sh -s $(objpfx) "" \
 567           $(sort $(tests-special-notdir:.out=)) \
 568           > $(objpfx)subdir-tests.sum
 569         $(..)scripts/merge-test-results.sh -t $(objpfx) subdir-tests.sum \
 570           $(sort $(subdirs) .) \
 571           > $(objpfx)tests.sum
 572         $(call summarize-tests,tests.sum)
 573 xtests:
 574         $(..)scripts/merge-test-results.sh -t $(objpfx) subdir-xtests.sum \
 575           $(sort $(subdirs)) \
 576           > $(objpfx)xtests.sum
 577         $(call summarize-tests,xtests.sum, for extra tests)
 578
 579 # The realclean target is just like distclean for the parent, but we want
 580 # the subdirs to know the difference in case they care.
 581 realclean distclean: parent-clean
 582 # This is done this way rather than having `subdir_distclean' be a
 583 # dependency of this target so that libc.a will be removed before the
 584 # subdirectories are dealt with and so they won't try to remove object
 585 # files from it when it's going to be removed anyway.
 586         @$(MAKE) distclean-1 no_deps=t distclean-1=$@ avoid-generated=yes \
 587                  sysdep-subdirs="$(sysdep-subdirs)"
 588         -rm -f $(postclean)
 589
 590 # Subroutine of distclean and realclean.
 591 distclean-1: subdir_$(distclean-1)
 592         -rm -f $(config-generated)
 593         -rm -f $(addprefix $(objpfx),config.status config.cache config.log)
 594         -rm -f $(addprefix $(objpfx),config.make config-name.h config.h)
 595 ifdef objdir
 596         -rm -f $(objpfx)Makefile
 597 endif
 598         -rm -f $(sysdep-$(distclean-1))
 599 \f
 600 # Make the TAGS file for Emacs users.
 601
 602 .PHONY: TAGS
 603 TAGS:
 604         scripts/list-sources.sh | sed -n -e '/Makefile/p' \
 605           $(foreach S,[chsSyl] cxx sh bash pl,\
 606                     $(subst .,\.,-e '/.$S\(.in\)*$$/p')) \
 607         | $(ETAGS) -o $@ -
 608 \f
 609 # Make the distribution tarfile.
 610 .PHONY: dist dist-prepare
 611
 612 generated := $(generated) stubs.h
 613
 614 files-for-dist := README INSTALL configure ChangeLog NEWS
 615
 616 # Regenerate stuff, then error if these things are not committed yet.
 617 dist-prepare: $(files-for-dist)
 618         conf=`find sysdeps -name configure`; \
 619         $(MAKE) $$conf && \
 620         git diff --stat HEAD -- $^ $$conf \
 621         | $(AWK) '{ print; rc=1 } END { exit rc }'
 622
 623 %.tar: FORCE
 624         git archive --prefix=$*/ $* > $@.new
 625         mv -f $@.new $@
 626
 627 # Do `make dist dist-version=X.Y.Z' to make tar files of an older version.
 628
 629 ifneq (,$(strip $(dist-version)))
 630 dist: $(foreach Z,.bz2 .gz .xz,$(dist-version).tar$Z)
 631         md5sum $^
 632 else
 633 dist: dist-prepare
 634         @if v=`git describe`; then \
 635           echo Distribution version $$v; \
 636           $(MAKE) dist dist-version=$$v; \
 637         else \
 638           false; \
 639         fi
 640 endif
 641
 642 INSTALL: manual/install-plain.texi manual/macros.texi \
 643          $(common-objpfx)manual/pkgvers.texi manual/install.texi
 644         makeinfo --no-validate --plaintext --no-number-sections \
 645                  -I$(common-objpfx)manual $< -o $@-tmp
 646         $(AWK) 'NF == 0 { ++n; next } \
 647                 NF != 0 { while (n-- > 0) print ""; n = 0; print }' \
 648           < $@-tmp > $@-tmp2
 649         rm -f $@-tmp
 650         -chmod a-w $@-tmp2
 651         mv -f $@-tmp2 $@
 652 $(common-objpfx)manual/%: FORCE
 653         $(MAKE) $(PARALLELMFLAGS) -C manual $@
 654 FORCE:
 655
 656 iconvdata/% localedata/% po/%: FORCE
 657         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)