1# -*-Makefile-*- 2# This Makefile fragment tries to be general-purpose enough to be 3# used by many projects via the gnulib maintainer-makefile module. 4 5## Copyright (C) 2001-2012 Free Software Foundation, Inc. 6## 7## This program is free software: you can redistribute it and/or modify 8## it under the terms of the GNU General Public License as published by 9## the Free Software Foundation, either version 3 of the License, or 10## (at your option) any later version. 11## 12## This program is distributed in the hope that it will be useful, 13## but WITHOUT ANY WARRANTY; without even the implied warranty of 14## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15## GNU General Public License for more details. 16## 17## You should have received a copy of the GNU General Public License 18## along with this program. If not, see <http://www.gnu.org/licenses/>. 19 20# This is reported not to work with make-3.79.1 21# ME := $(word $(words $(MAKEFILE_LIST)),$(MAKEFILE_LIST)) 22ME := maint.mk 23 24# Diagnostic for continued use of deprecated variable. 25# Remove in 2013 26ifneq ($(build_aux),) 27 $(error "$(ME): \ 28set $$(_build-aux) relative to $$(srcdir) instead of $$(build_aux)") 29endif 30 31# Helper variables. 32_empty = 33_sp = $(_empty) $(_empty) 34 35# _equal,S1,S2 36# ------------ 37# If S1 == S2, return S1, otherwise the empty string. 38_equal = $(and $(findstring $(1),$(2)),$(findstring $(2),$(1))) 39 40# member-check,VARIABLE,VALID-VALUES 41# ---------------------------------- 42# Check that $(VARIABLE) is in the space-separated list of VALID-VALUES, and 43# return it. Die otherwise. 44member-check = \ 45 $(strip \ 46 $(if $($(1)), \ 47 $(if $(findstring $(_sp),$($(1))), \ 48 $(error invalid $(1): '$($(1))', expected $(2)), \ 49 $(or $(findstring $(_sp)$($(1))$(_sp),$(_sp)$(2)$(_sp)), \ 50 $(error invalid $(1): '$($(1))', expected $(2)))), \ 51 $(error $(1) undefined))) 52 53# Do not save the original name or timestamp in the .tar.gz file. 54# Use --rsyncable if available. 55gzip_rsyncable := \ 56 $(shell gzip --help 2>/dev/null|grep rsyncable >/dev/null \ 57 && printf %s --rsyncable) 58GZIP_ENV = '--no-name --best $(gzip_rsyncable)' 59 60GIT = git 61VC = $(GIT) 62 63VC_LIST = $(srcdir)/$(_build-aux)/vc-list-files -C $(srcdir) 64 65# You can override this variable in cfg.mk to set your own regexp 66# matching files to ignore. 67VC_LIST_ALWAYS_EXCLUDE_REGEX ?= ^$$ 68 69# This is to preprocess robustly the output of $(VC_LIST), so that even 70# when $(srcdir) is a pathological name like "....", the leading sed command 71# removes only the intended prefix. 72_dot_escaped_srcdir = $(subst .,\.,$(srcdir)) 73 74# Post-process $(VC_LIST) output, prepending $(srcdir)/, but only 75# when $(srcdir) is not ".". 76ifeq ($(srcdir),.) 77 _prepend_srcdir_prefix = 78else 79 _prepend_srcdir_prefix = | sed 's|^|$(srcdir)/|' 80endif 81 82# In order to be able to consistently filter "."-relative names, 83# (i.e., with no $(srcdir) prefix), this definition is careful to 84# remove any $(srcdir) prefix, and to restore what it removes. 85_sc_excl = \ 86 $(or $(exclude_file_name_regexp--$@),^$$) 87VC_LIST_EXCEPT = \ 88 $(VC_LIST) | sed 's|^$(_dot_escaped_srcdir)/||' \ 89 | if test -f $(srcdir)/.x-$@; then grep -vEf $(srcdir)/.x-$@; \ 90 else grep -Ev -e "$${VC_LIST_EXCEPT_DEFAULT-ChangeLog}"; fi \ 91 | grep -Ev -e '($(VC_LIST_ALWAYS_EXCLUDE_REGEX)|$(_sc_excl))' \ 92 $(_prepend_srcdir_prefix) 93 94ifeq ($(origin prev_version_file), undefined) 95 prev_version_file = $(srcdir)/.prev-version 96endif 97 98PREV_VERSION := $(shell cat $(prev_version_file) 2>/dev/null) 99VERSION_REGEXP = $(subst .,\.,$(VERSION)) 100PREV_VERSION_REGEXP = $(subst .,\.,$(PREV_VERSION)) 101 102ifeq ($(VC),$(GIT)) 103 this-vc-tag = v$(VERSION) 104 this-vc-tag-regexp = v$(VERSION_REGEXP) 105else 106 tag-package = $(shell echo "$(PACKAGE)" | tr '[:lower:]' '[:upper:]') 107 tag-this-version = $(subst .,_,$(VERSION)) 108 this-vc-tag = $(tag-package)-$(tag-this-version) 109 this-vc-tag-regexp = $(this-vc-tag) 110endif 111my_distdir = $(PACKAGE)-$(VERSION) 112 113# Old releases are stored here. 114release_archive_dir ?= ../release 115 116# If RELEASE_TYPE is undefined, but RELEASE is, use its second word. 117# But overwrite VERSION. 118ifdef RELEASE 119 VERSION := $(word 1, $(RELEASE)) 120 RELEASE_TYPE ?= $(word 2, $(RELEASE)) 121endif 122 123# Validate and return $(RELEASE_TYPE), or die. 124RELEASE_TYPES = alpha beta stable 125release-type = $(call member-check,RELEASE_TYPE,$(RELEASE_TYPES)) 126 127# Override gnu_rel_host and url_dir_list in cfg.mk if these are not right. 128# Use alpha.gnu.org for alpha and beta releases. 129# Use ftp.gnu.org for stable releases. 130gnu_ftp_host-alpha = alpha.gnu.org 131gnu_ftp_host-beta = alpha.gnu.org 132gnu_ftp_host-stable = ftp.gnu.org 133gnu_rel_host ?= $(gnu_ftp_host-$(release-type)) 134 135url_dir_list ?= $(if $(call _equal,$(gnu_rel_host),ftp.gnu.org), \ 136 http://ftpmirror.gnu.org/$(PACKAGE), \ 137 ftp://$(gnu_rel_host)/gnu/$(PACKAGE)) 138 139# Override this in cfg.mk if you are using a different format in your 140# NEWS file. 141today = $(shell date +%Y-%m-%d) 142 143# Select which lines of NEWS are searched for $(news-check-regexp). 144# This is a sed line number spec. The default says that we search 145# lines 1..10 of NEWS for $(news-check-regexp). 146# If you want to search only line 3 or only lines 20-22, use "3" or "20,22". 147news-check-lines-spec ?= 1,10 148news-check-regexp ?= '^\*.* $(VERSION_REGEXP) \($(today)\)' 149 150# Prevent programs like 'sort' from considering distinct strings to be equal. 151# Doing it here saves us from having to set LC_ALL elsewhere in this file. 152export LC_ALL = C 153 154## --------------- ## 155## Sanity checks. ## 156## --------------- ## 157 158_cfg_mk := $(wildcard $(srcdir)/cfg.mk) 159 160# Collect the names of rules starting with 'sc_'. 161syntax-check-rules := $(sort $(shell sed -n 's/^\(sc_[a-zA-Z0-9_-]*\):.*/\1/p' \ 162 $(srcdir)/$(ME) $(_cfg_mk))) 163.PHONY: $(syntax-check-rules) 164 165ifeq ($(shell $(VC_LIST) >/dev/null 2>&1; echo $$?),0) 166 local-checks-available += $(syntax-check-rules) 167else 168 local-checks-available += no-vc-detected 169no-vc-detected: 170 @echo "No version control files detected; skipping syntax check" 171endif 172.PHONY: $(local-checks-available) 173 174# Arrange to print the name of each syntax-checking rule just before running it. 175$(syntax-check-rules): %: %.m 176sc_m_rules_ = $(patsubst %, %.m, $(syntax-check-rules)) 177.PHONY: $(sc_m_rules_) 178$(sc_m_rules_): 179 @echo $(patsubst sc_%.m, %, $@) 180 @date +%s.%N > .sc-start-$(basename $@) 181 182# Compute and print the elapsed time for each syntax-check rule. 183sc_z_rules_ = $(patsubst %, %.z, $(syntax-check-rules)) 184.PHONY: $(sc_z_rules_) 185$(sc_z_rules_): %.z: % 186 @end=$$(date +%s.%N); \ 187 start=$$(cat .sc-start-$*); \ 188 rm -f .sc-start-$*; \ 189 awk -v s=$$start -v e=$$end \ 190 'END {printf "%.2f $(patsubst sc_%,%,$*)\n", e - s}' < /dev/null 191 192# The patsubst here is to replace each sc_% rule with its sc_%.z wrapper 193# that computes and prints elapsed time. 194local-check := \ 195 $(patsubst sc_%, sc_%.z, \ 196 $(filter-out $(local-checks-to-skip), $(local-checks-available))) 197 198syntax-check: $(local-check) 199 200# _sc_search_regexp 201# 202# This macro searches for a given construct in the selected files and 203# then takes some action. 204# 205# Parameters (shell variables): 206# 207# prohibit | require 208# 209# Regular expression (ERE) denoting either a forbidden construct 210# or a required construct. Those arguments are exclusive. 211# 212# exclude 213# 214# Regular expression (ERE) denoting lines to ignore that matched 215# a prohibit construct. For example, this can be used to exclude 216# comments that mention why the nearby code uses an alternative 217# construct instead of the simpler prohibited construct. 218# 219# in_vc_files | in_files 220# 221# grep-E-style regexp selecting the files to check. For in_vc_files, 222# the regexp is used to select matching files from the list of all 223# version-controlled files; for in_files, it's from the names printed 224# by "find $(srcdir)". When neither is specified, use all files that 225# are under version control. 226# 227# containing | non_containing 228# 229# Select the files (non) containing strings matching this regexp. 230# If both arguments are specified then CONTAINING takes 231# precedence. 232# 233# with_grep_options 234# 235# Extra options for grep. 236# 237# ignore_case 238# 239# Ignore case. 240# 241# halt 242# 243# Message to display before to halting execution. 244# 245# Finally, you may exempt files based on an ERE matching file names. 246# For example, to exempt from the sc_space_tab check all files with the 247# .diff suffix, set this Make variable: 248# 249# exclude_file_name_regexp--sc_space_tab = \.diff$ 250# 251# Note that while this functionality is mostly inherited via VC_LIST_EXCEPT, 252# when filtering by name via in_files, we explicitly filter out matching 253# names here as well. 254 255# Initialize each, so that envvar settings cannot interfere. 256export require = 257export prohibit = 258export exclude = 259export in_vc_files = 260export in_files = 261export containing = 262export non_containing = 263export halt = 264export with_grep_options = 265 266# By default, _sc_search_regexp does not ignore case. 267export ignore_case = 268_ignore_case = $$(test -n "$$ignore_case" && printf %s -i || :) 269 270define _sc_say_and_exit 271 dummy=; : so we do not need a semicolon before each use; \ 272 { printf '%s\n' "$(ME): $$msg" 1>&2; exit 1; }; 273endef 274 275define _sc_search_regexp 276 dummy=; : so we do not need a semicolon before each use; \ 277 \ 278 : Check arguments; \ 279 test -n "$$prohibit" && test -n "$$require" \ 280 && { msg='Cannot specify both prohibit and require' \ 281 $(_sc_say_and_exit) } || :; \ 282 test -z "$$prohibit" && test -z "$$require" \ 283 && { msg='Should specify either prohibit or require' \ 284 $(_sc_say_and_exit) } || :; \ 285 test -z "$$prohibit" && test -n "$$exclude" \ 286 && { msg='Use of exclude requires a prohibit pattern' \ 287 $(_sc_say_and_exit) } || :; \ 288 test -n "$$in_vc_files" && test -n "$$in_files" \ 289 && { msg='Cannot specify both in_vc_files and in_files' \ 290 $(_sc_say_and_exit) } || :; \ 291 test "x$$halt" != x \ 292 || { msg='halt not defined' $(_sc_say_and_exit) }; \ 293 \ 294 : Filter by file name; \ 295 if test -n "$$in_files"; then \ 296 files=$$(find $(srcdir) | grep -E "$$in_files" \ 297 | grep -Ev '$(_sc_excl)'); \ 298 else \ 299 files=$$($(VC_LIST_EXCEPT)); \ 300 if test -n "$$in_vc_files"; then \ 301 files=$$(echo "$$files" | grep -E "$$in_vc_files"); \ 302 fi; \ 303 fi; \ 304 \ 305 : Filter by content; \ 306 test -n "$$files" && test -n "$$containing" \ 307 && { files=$$(grep -l "$$containing" $$files); } || :; \ 308 test -n "$$files" && test -n "$$non_containing" \ 309 && { files=$$(grep -vl "$$non_containing" $$files); } || :; \ 310 \ 311 : Check for the construct; \ 312 if test -n "$$files"; then \ 313 if test -n "$$prohibit"; then \ 314 grep $$with_grep_options $(_ignore_case) -nE "$$prohibit" $$files \ 315 | grep -vE "$${exclude:-^$$}" \ 316 && { msg="$$halt" $(_sc_say_and_exit) } || :; \ 317 else \ 318 grep $$with_grep_options $(_ignore_case) -LE "$$require" $$files \ 319 | grep . \ 320 && { msg="$$halt" $(_sc_say_and_exit) } || :; \ 321 fi \ 322 else :; \ 323 fi || :; 324endef 325 326sc_avoid_if_before_free: 327 @$(srcdir)/$(_build-aux)/useless-if-before-free \ 328 $(useless_free_options) \ 329 $$($(VC_LIST_EXCEPT) | grep -v useless-if-before-free) && \ 330 { echo '$(ME): found useless "if" before "free" above' 1>&2; \ 331 exit 1; } || : 332 333sc_cast_of_argument_to_free: 334 @prohibit='\<free *\( *\(' halt="don't cast free argument" \ 335 $(_sc_search_regexp) 336 337sc_cast_of_x_alloc_return_value: 338 @prohibit='\*\) *x(m|c|re)alloc\>' \ 339 halt="don't cast x*alloc return value" \ 340 $(_sc_search_regexp) 341 342sc_cast_of_alloca_return_value: 343 @prohibit='\*\) *alloca\>' \ 344 halt="don't cast alloca return value" \ 345 $(_sc_search_regexp) 346 347sc_space_tab: 348 @prohibit='[ ] ' \ 349 halt='found SPACE-TAB sequence; remove the SPACE' \ 350 $(_sc_search_regexp) 351 352# Don't use *scanf or the old ato* functions in "real" code. 353# They provide no error checking mechanism. 354# Instead, use strto* functions. 355sc_prohibit_atoi_atof: 356 @prohibit='\<([fs]?scanf|ato([filq]|ll)) *\(' \ 357 halt='do not use *scan''f, ato''f, ato''i, ato''l, ato''ll or ato''q' \ 358 $(_sc_search_regexp) 359 360# Use STREQ rather than comparing strcmp == 0, or != 0. 361sp_ = strcmp *\(.+\) 362sc_prohibit_strcmp: 363 @prohibit='! *strcmp *\(|\<$(sp_) *[!=]=|[!=]= *$(sp_)' \ 364 exclude='# *define STRN?EQ\(' \ 365 halt='replace strcmp calls above with STREQ/STRNEQ' \ 366 $(_sc_search_regexp) 367 368# Really. You don't want to use this function. 369# It may fail to NUL-terminate the destination, 370# and always NUL-pads out to the specified length. 371sc_prohibit_strncpy: 372 @prohibit='\<strncpy *\(' \ 373 halt='do not use strncpy, period' \ 374 $(_sc_search_regexp) 375 376# Pass EXIT_*, not number, to usage, exit, and error (when exiting) 377# Convert all uses automatically, via these two commands: 378# git grep -l '\<exit *(1)' \ 379# | grep -vEf .x-sc_prohibit_magic_number_exit \ 380# | xargs --no-run-if-empty \ 381# perl -pi -e 's/(^|[^.])\b(exit ?)\(1\)/$1$2(EXIT_FAILURE)/' 382# git grep -l '\<exit *(0)' \ 383# | grep -vEf .x-sc_prohibit_magic_number_exit \ 384# | xargs --no-run-if-empty \ 385# perl -pi -e 's/(^|[^.])\b(exit ?)\(0\)/$1$2(EXIT_SUCCESS)/' 386sc_prohibit_magic_number_exit: 387 @prohibit='(^|[^.])\<(usage|exit|error) ?\(-?[0-9]+[,)]' \ 388 exclude='exit \(77\)|error ?\(((0|77),|[^,]*)' \ 389 halt='use EXIT_* values rather than magic number' \ 390 $(_sc_search_regexp) 391 392# Using EXIT_SUCCESS as the first argument to error is misleading, 393# since when that parameter is 0, error does not exit. Use '0' instead. 394sc_error_exit_success: 395 @prohibit='error *\(EXIT_SUCCESS,' \ 396 in_vc_files='\.[chly]$$' \ 397 halt='found error (EXIT_SUCCESS' \ 398 $(_sc_search_regexp) 399 400# "FATAL:" should be fully upper-cased in error messages 401# "WARNING:" should be fully upper-cased, or fully lower-cased 402sc_error_message_warn_fatal: 403 @grep -nEA2 '[^rp]error *\(' $$($(VC_LIST_EXCEPT)) \ 404 | grep -E '"Warning|"Fatal|"fatal' && \ 405 { echo '$(ME): use FATAL, WARNING or warning' 1>&2; \ 406 exit 1; } || : 407 408# Error messages should not start with a capital letter 409sc_error_message_uppercase: 410 @grep -nEA2 '[^rp]error *\(' $$($(VC_LIST_EXCEPT)) \ 411 | grep -E '"[A-Z]' \ 412 | grep -vE '"FATAL|"WARNING|"Java|"C#|PRIuMAX' && \ 413 { echo '$(ME): found capitalized error message' 1>&2; \ 414 exit 1; } || : 415 416# Error messages should not end with a period 417sc_error_message_period: 418 @grep -nEA2 '[^rp]error *\(' $$($(VC_LIST_EXCEPT)) \ 419 | grep -E '[^."]\."' && \ 420 { echo '$(ME): found error message ending in period' 1>&2; \ 421 exit 1; } || : 422 423sc_file_system: 424 @prohibit=file''system \ 425 ignore_case=1 \ 426 halt='found use of "file''system"; spell it "file system"' \ 427 $(_sc_search_regexp) 428 429# Don't use cpp tests of this symbol. All code assumes config.h is included. 430sc_prohibit_have_config_h: 431 @prohibit='^# *if.*HAVE''_CONFIG_H' \ 432 halt='found use of HAVE''_CONFIG_H; remove' \ 433 $(_sc_search_regexp) 434 435# Nearly all .c files must include <config.h>. However, we also permit this 436# via inclusion of a package-specific header, if cfg.mk specified one. 437# config_h_header must be suitable for grep -E. 438config_h_header ?= <config\.h> 439sc_require_config_h: 440 @require='^# *include $(config_h_header)' \ 441 in_vc_files='\.c$$' \ 442 halt='the above files do not include <config.h>' \ 443 $(_sc_search_regexp) 444 445# You must include <config.h> before including any other header file. 446# This can possibly be via a package-specific header, if given by cfg.mk. 447sc_require_config_h_first: 448 @if $(VC_LIST_EXCEPT) | grep -l '\.c$$' > /dev/null; then \ 449 fail=0; \ 450 for i in $$($(VC_LIST_EXCEPT) | grep '\.c$$'); do \ 451 grep '^# *include\>' $$i | sed 1q \ 452 | grep -E '^# *include $(config_h_header)' > /dev/null \ 453 || { echo $$i; fail=1; }; \ 454 done; \ 455 test $$fail = 1 && \ 456 { echo '$(ME): the above files include some other header' \ 457 'before <config.h>' 1>&2; exit 1; } || :; \ 458 else :; \ 459 fi 460 461sc_prohibit_HAVE_MBRTOWC: 462 @prohibit='\bHAVE_MBRTOWC\b' \ 463 halt="do not use $$prohibit; it is always defined" \ 464 $(_sc_search_regexp) 465 466# To use this "command" macro, you must first define two shell variables: 467# h: the header name, with no enclosing <> or "" 468# re: a regular expression that matches IFF something provided by $h is used. 469define _sc_header_without_use 470 dummy=; : so we do not need a semicolon before each use; \ 471 h_esc=`echo '[<"]'"$$h"'[">]'|sed 's/\./\\\\./g'`; \ 472 if $(VC_LIST_EXCEPT) | grep -l '\.c$$' > /dev/null; then \ 473 files=$$(grep -l '^# *include '"$$h_esc" \ 474 $$($(VC_LIST_EXCEPT) | grep '\.c$$')) && \ 475 grep -LE "$$re" $$files | grep . && \ 476 { echo "$(ME): the above files include $$h but don't use it" \ 477 1>&2; exit 1; } || :; \ 478 else :; \ 479 fi 480endef 481 482# Prohibit the inclusion of assert.h without an actual use of assert. 483sc_prohibit_assert_without_use: 484 @h='assert.h' re='\<assert *\(' $(_sc_header_without_use) 485 486# Prohibit the inclusion of close-stream.h without an actual use. 487sc_prohibit_close_stream_without_use: 488 @h='close-stream.h' re='\<close_stream *\(' $(_sc_header_without_use) 489 490# Prohibit the inclusion of getopt.h without an actual use. 491sc_prohibit_getopt_without_use: 492 @h='getopt.h' re='\<getopt(_long)? *\(' $(_sc_header_without_use) 493 494# Don't include quotearg.h unless you use one of its functions. 495sc_prohibit_quotearg_without_use: 496 @h='quotearg.h' re='\<quotearg(_[^ ]+)? *\(' $(_sc_header_without_use) 497 498# Don't include quote.h unless you use one of its functions. 499sc_prohibit_quote_without_use: 500 @h='quote.h' re='\<quote((_n)? *\(|_quoting_options\>)' \ 501 $(_sc_header_without_use) 502 503# Don't include this header unless you use one of its functions. 504sc_prohibit_long_options_without_use: 505 @h='long-options.h' re='\<parse_long_options *\(' \ 506 $(_sc_header_without_use) 507 508# Don't include this header unless you use one of its functions. 509sc_prohibit_inttostr_without_use: 510 @h='inttostr.h' re='\<(off|[iu]max|uint)tostr *\(' \ 511 $(_sc_header_without_use) 512 513# Don't include this header unless you use one of its functions. 514sc_prohibit_ignore_value_without_use: 515 @h='ignore-value.h' re='\<ignore_(value|ptr) *\(' \ 516 $(_sc_header_without_use) 517 518# Don't include this header unless you use one of its functions. 519sc_prohibit_error_without_use: 520 @h='error.h' \ 521 re='\<error(_at_line|_print_progname|_one_per_line|_message_count)? *\('\ 522 $(_sc_header_without_use) 523 524# Don't include xalloc.h unless you use one of its functions. 525# Consider these symbols: 526# perl -lne '/^# *define (\w+)\(/ and print $1' lib/xalloc.h|grep -v '^__'; 527# perl -lne '/^(?:extern )?(?:void|char) \*?(\w+) *\(/ and print $1' lib/xalloc.h 528# Divide into two sets on case, and filter each through this: 529# | sort | perl -MRegexp::Assemble -le \ 530# 'print Regexp::Assemble->new(file => "/dev/stdin")->as_string'|sed 's/\?://g' 531# Note this was produced by the above: 532# _xa1 = \ 533#x(((2n?)?re|c(har)?|n(re|m)|z)alloc|alloc_(oversized|die)|m(alloc|emdup)|strdup) 534# But we can do better, in at least two ways: 535# 1) take advantage of two "dup"-suffixed strings: 536# x(((2n?)?re|c(har)?|n(re|m)|[mz])alloc|alloc_(oversized|die)|(mem|str)dup) 537# 2) notice that "c(har)?|[mz]" is equivalent to the shorter and more readable 538# "char|[cmz]" 539# x(((2n?)?re|char|n(re|m)|[cmz])alloc|alloc_(oversized|die)|(mem|str)dup) 540_xa1 = x(((2n?)?re|char|n(re|m)|[cmz])alloc|alloc_(oversized|die)|(mem|str)dup) 541_xa2 = X([CZ]|N?M)ALLOC 542sc_prohibit_xalloc_without_use: 543 @h='xalloc.h' \ 544 re='\<($(_xa1)|$(_xa2)) *\('\ 545 $(_sc_header_without_use) 546 547# Extract function names: 548# perl -lne '/^(?:extern )?(?:void|char) \*?(\w+) *\(/ and print $1' lib/hash.h 549_hash_re = \ 550clear|delete|free|get_(first|next)|insert|lookup|print_statistics|reset_tuning 551_hash_fn = \<($(_hash_re)) *\( 552_hash_struct = (struct )?\<[Hh]ash_(table|tuning)\> 553sc_prohibit_hash_without_use: 554 @h='hash.h' \ 555 re='$(_hash_fn)|$(_hash_struct)'\ 556 $(_sc_header_without_use) 557 558sc_prohibit_cloexec_without_use: 559 @h='cloexec.h' re='\<(set_cloexec_flag|dup_cloexec) *\(' \ 560 $(_sc_header_without_use) 561 562sc_prohibit_posixver_without_use: 563 @h='posixver.h' re='\<posix2_version *\(' $(_sc_header_without_use) 564 565sc_prohibit_same_without_use: 566 @h='same.h' re='\<same_name *\(' $(_sc_header_without_use) 567 568sc_prohibit_hash_pjw_without_use: 569 @h='hash-pjw.h' \ 570 re='\<hash_pjw\>' \ 571 $(_sc_header_without_use) 572 573sc_prohibit_safe_read_without_use: 574 @h='safe-read.h' re='(\<SAFE_READ_ERROR\>|\<safe_read *\()' \ 575 $(_sc_header_without_use) 576 577sc_prohibit_argmatch_without_use: 578 @h='argmatch.h' \ 579 re='(\<(ARRAY_CARDINALITY|X?ARGMATCH(|_TO_ARGUMENT|_VERIFY))\>|\<(invalid_arg|argmatch(_exit_fn|_(in)?valid)?) *\()' \ 580 $(_sc_header_without_use) 581 582sc_prohibit_canonicalize_without_use: 583 @h='canonicalize.h' \ 584 re='CAN_(EXISTING|ALL_BUT_LAST|MISSING)|canonicalize_(mode_t|filename_mode|file_name)' \ 585 $(_sc_header_without_use) 586 587sc_prohibit_root_dev_ino_without_use: 588 @h='root-dev-ino.h' \ 589 re='(\<ROOT_DEV_INO_(CHECK|WARN)\>|\<get_root_dev_ino *\()' \ 590 $(_sc_header_without_use) 591 592sc_prohibit_openat_without_use: 593 @h='openat.h' \ 594 re='\<(openat_(permissive|needs_fchdir|(save|restore)_fail)|l?(stat|ch(own|mod))at|(euid)?accessat)\>' \ 595 $(_sc_header_without_use) 596 597# Prohibit the inclusion of c-ctype.h without an actual use. 598ctype_re = isalnum|isalpha|isascii|isblank|iscntrl|isdigit|isgraph|islower\ 599|isprint|ispunct|isspace|isupper|isxdigit|tolower|toupper 600sc_prohibit_c_ctype_without_use: 601 @h='c-ctype.h' re='\<c_($(ctype_re)) *\(' \ 602 $(_sc_header_without_use) 603 604# The following list was generated by running: 605# man signal.h|col -b|perl -ne '/bsd_signal.*;/.../sigwaitinfo.*;/ and print' \ 606# | perl -lne '/^\s+(?:int|void).*?(\w+).*/ and print $1' | fmt 607_sig_functions = \ 608 bsd_signal kill killpg pthread_kill pthread_sigmask raise sigaction \ 609 sigaddset sigaltstack sigdelset sigemptyset sigfillset sighold sigignore \ 610 siginterrupt sigismember signal sigpause sigpending sigprocmask sigqueue \ 611 sigrelse sigset sigsuspend sigtimedwait sigwait sigwaitinfo 612_sig_function_re = $(subst $(_sp),|,$(strip $(_sig_functions))) 613# The following were extracted from "man signal.h" manually. 614_sig_types_and_consts = \ 615 MINSIGSTKSZ SA_NOCLDSTOP SA_NOCLDWAIT SA_NODEFER SA_ONSTACK \ 616 SA_RESETHAND SA_RESTART SA_SIGINFO SIGEV_NONE SIGEV_SIGNAL \ 617 SIGEV_THREAD SIGSTKSZ SIG_BLOCK SIG_SETMASK SIG_UNBLOCK SS_DISABLE \ 618 SS_ONSTACK mcontext_t pid_t sig_atomic_t sigevent siginfo_t sigset_t \ 619 sigstack sigval stack_t ucontext_t 620# generated via this: 621# perl -lne '/^#ifdef (SIG\w+)/ and print $1' lib/sig2str.c|sort -u|fmt -70 622_sig_names = \ 623 SIGABRT SIGALRM SIGALRM1 SIGBUS SIGCANCEL SIGCHLD SIGCLD SIGCONT \ 624 SIGDANGER SIGDIL SIGEMT SIGFPE SIGFREEZE SIGGRANT SIGHUP SIGILL \ 625 SIGINFO SIGINT SIGIO SIGIOT SIGKAP SIGKILL SIGKILLTHR SIGLOST SIGLWP \ 626 SIGMIGRATE SIGMSG SIGPHONE SIGPIPE SIGPOLL SIGPRE SIGPROF SIGPWR \ 627 SIGQUIT SIGRETRACT SIGSAK SIGSEGV SIGSOUND SIGSTKFLT SIGSTOP SIGSYS \ 628 SIGTERM SIGTHAW SIGTRAP SIGTSTP SIGTTIN SIGTTOU SIGURG SIGUSR1 \ 629 SIGUSR2 SIGVIRT SIGVTALRM SIGWAITING SIGWINCH SIGWIND SIGWINDOW \ 630 SIGXCPU SIGXFSZ 631_sig_syms_re = $(subst $(_sp),|,$(strip $(_sig_names) $(_sig_types_and_consts))) 632 633# Prohibit the inclusion of signal.h without an actual use. 634sc_prohibit_signal_without_use: 635 @h='signal.h' \ 636 re='\<($(_sig_function_re)) *\(|\<($(_sig_syms_re))\>' \ 637 $(_sc_header_without_use) 638 639# Don't include stdio--.h unless you use one of its functions. 640sc_prohibit_stdio--_without_use: 641 @h='stdio--.h' re='\<((f(re)?|p)open|tmpfile) *\(' \ 642 $(_sc_header_without_use) 643 644# Don't include stdio-safer.h unless you use one of its functions. 645sc_prohibit_stdio-safer_without_use: 646 @h='stdio-safer.h' re='\<((f(re)?|p)open|tmpfile)_safer *\(' \ 647 $(_sc_header_without_use) 648 649# Prohibit the inclusion of strings.h without a sensible use. 650# Using the likes of bcmp, bcopy, bzero, index or rindex is not sensible. 651sc_prohibit_strings_without_use: 652 @h='strings.h' \ 653 re='\<(strn?casecmp|ffs(ll)?)\>' \ 654 $(_sc_header_without_use) 655 656# Get the list of symbol names with this: 657# perl -lne '/^# *define ([A-Z]\w+)\(/ and print $1' lib/intprops.h|fmt 658_intprops_names = \ 659 TYPE_IS_INTEGER TYPE_TWOS_COMPLEMENT TYPE_ONES_COMPLEMENT \ 660 TYPE_SIGNED_MAGNITUDE TYPE_SIGNED TYPE_MINIMUM TYPE_MAXIMUM \ 661 INT_BITS_STRLEN_BOUND INT_STRLEN_BOUND INT_BUFSIZE_BOUND \ 662 INT_ADD_RANGE_OVERFLOW INT_SUBTRACT_RANGE_OVERFLOW \ 663 INT_NEGATE_RANGE_OVERFLOW INT_MULTIPLY_RANGE_OVERFLOW \ 664 INT_DIVIDE_RANGE_OVERFLOW INT_REMAINDER_RANGE_OVERFLOW \ 665 INT_LEFT_SHIFT_RANGE_OVERFLOW INT_ADD_OVERFLOW INT_SUBTRACT_OVERFLOW \ 666 INT_NEGATE_OVERFLOW INT_MULTIPLY_OVERFLOW INT_DIVIDE_OVERFLOW \ 667 INT_REMAINDER_OVERFLOW INT_LEFT_SHIFT_OVERFLOW 668_intprops_syms_re = $(subst $(_sp),|,$(strip $(_intprops_names))) 669# Prohibit the inclusion of intprops.h without an actual use. 670sc_prohibit_intprops_without_use: 671 @h='intprops.h' \ 672 re='\<($(_intprops_syms_re)) *\(' \ 673 $(_sc_header_without_use) 674 675_stddef_syms_re = NULL|offsetof|ptrdiff_t|size_t|wchar_t 676# Prohibit the inclusion of stddef.h without an actual use. 677sc_prohibit_stddef_without_use: 678 @h='stddef.h' \ 679 re='\<($(_stddef_syms_re))\>' \ 680 $(_sc_header_without_use) 681 682_de1 = dirfd|(close|(fd)?open|read|rewind|seek|tell)dir(64)?(_r)? 683_de2 = (versionsort|struct dirent|getdirentries|alphasort|scandir(at)?)(64)? 684_de3 = MAXNAMLEN|DIR|ino_t|d_ino|d_fileno|d_namlen 685_dirent_syms_re = $(_de1)|$(_de2)|$(_de3) 686# Prohibit the inclusion of dirent.h without an actual use. 687sc_prohibit_dirent_without_use: 688 @h='dirent.h' \ 689 re='\<($(_dirent_syms_re))\>' \ 690 $(_sc_header_without_use) 691 692# Prohibit the inclusion of verify.h without an actual use. 693sc_prohibit_verify_without_use: 694 @h='verify.h' \ 695 re='\<(verify(true|expr)?|static_assert) *\(' \ 696 $(_sc_header_without_use) 697 698# Don't include xfreopen.h unless you use one of its functions. 699sc_prohibit_xfreopen_without_use: 700 @h='xfreopen.h' re='\<xfreopen *\(' $(_sc_header_without_use) 701 702sc_obsolete_symbols: 703 @prohibit='\<(HAVE''_FCNTL_H|O''_NDELAY)\>' \ 704 halt='do not use HAVE''_FCNTL_H or O'_NDELAY \ 705 $(_sc_search_regexp) 706 707# FIXME: warn about definitions of EXIT_FAILURE, EXIT_SUCCESS, STREQ 708 709# Each nonempty ChangeLog line must start with a year number, or a TAB. 710sc_changelog: 711 @prohibit='^[^12 ]' \ 712 in_vc_files='^ChangeLog$$' \ 713 halt='found unexpected prefix in a ChangeLog' \ 714 $(_sc_search_regexp) 715 716# Ensure that each .c file containing a "main" function also 717# calls set_program_name. 718sc_program_name: 719 @require='set_program_name *\(m?argv\[0\]\);' \ 720 in_vc_files='\.c$$' \ 721 containing='\<main *(' \ 722 halt='the above files do not call set_program_name' \ 723 $(_sc_search_regexp) 724 725# Ensure that each .c file containing a "main" function also 726# calls bindtextdomain. 727sc_bindtextdomain: 728 @require='bindtextdomain *\(' \ 729 in_vc_files='\.c$$' \ 730 containing='\<main *(' \ 731 halt='the above files do not call bindtextdomain' \ 732 $(_sc_search_regexp) 733 734# Require that the final line of each test-lib.sh-using test be this one: 735# Exit $fail 736# Note: this test requires GNU grep's --label= option. 737Exit_witness_file ?= tests/test-lib.sh 738Exit_base := $(notdir $(Exit_witness_file)) 739sc_require_test_exit_idiom: 740 @if test -f $(srcdir)/$(Exit_witness_file); then \ 741 die=0; \ 742 for i in $$(grep -l -F 'srcdir/$(Exit_base)' \ 743 $$($(VC_LIST) tests)); do \ 744 tail -n1 $$i | grep '^Exit .' > /dev/null \ 745 && : || { die=1; echo $$i; } \ 746 done; \ 747 test $$die = 1 && \ 748 { echo 1>&2 '$(ME): the final line in each of the above is not:'; \ 749 echo 1>&2 'Exit something'; \ 750 exit 1; } || :; \ 751 fi 752 753sc_trailing_blank: 754 @prohibit='[ ]$$' \ 755 halt='found trailing blank(s)' \ 756 exclude='^Binary file .* matches$$' \ 757 $(_sc_search_regexp) 758 759# Match lines like the following, but where there is only one space 760# between the options and the description: 761# -D, --all-repeated[=delimit-method] print all duplicate lines\n 762longopt_re = --[a-z][0-9A-Za-z-]*(\[?=[0-9A-Za-z-]*\]?)? 763sc_two_space_separator_in_usage: 764 @prohibit='^ *(-[A-Za-z],)? $(longopt_re) [^ ].*\\$$' \ 765 halt='help2man requires at least two spaces between an option and its description'\ 766 $(_sc_search_regexp) 767 768# A regexp matching function names like "error" that may be used 769# to emit translatable messages. 770_gl_translatable_diag_func_re ?= error 771 772# Look for diagnostics that aren't marked for translation. 773# This won't find any for which error's format string is on a separate line. 774sc_unmarked_diagnostics: 775 @prohibit='\<$(_gl_translatable_diag_func_re) *\([^"]*"[^"]*[a-z]{3}' \ 776 exclude='(_|ngettext ?)\(' \ 777 halt='found unmarked diagnostic(s)' \ 778 $(_sc_search_regexp) 779 780# Avoid useless parentheses like those in this example: 781# #if defined (SYMBOL) || defined (SYM2) 782sc_useless_cpp_parens: 783 @prohibit='^# *if .*defined *\(' \ 784 halt='found useless parentheses in cpp directive' \ 785 $(_sc_search_regexp) 786 787# List headers for which HAVE_HEADER_H is always true, assuming you are 788# using the appropriate gnulib module. CAUTION: for each "unnecessary" 789# #if HAVE_HEADER_H that you remove, be sure that your project explicitly 790# requires the gnulib module that guarantees the usability of that header. 791gl_assured_headers_ = \ 792 cd $(gnulib_dir)/lib && echo *.in.h|sed 's/\.in\.h//g' 793 794# Convert the list of names to upper case, and replace each space with "|". 795az_ = abcdefghijklmnopqrstuvwxyz 796AZ_ = ABCDEFGHIJKLMNOPQRSTUVWXYZ 797gl_header_upper_case_or_ = \ 798 $$($(gl_assured_headers_) \ 799 | tr $(az_)/.- $(AZ_)___ \ 800 | tr -s ' ' '|' \ 801 ) 802sc_prohibit_always_true_header_tests: 803 @or=$(gl_header_upper_case_or_); \ 804 re="HAVE_($$or)_H"; \ 805 prohibit='\<'"$$re"'\>' \ 806 halt=$$(printf '%s\n' \ 807 'do not test the above HAVE_<header>_H symbol(s);' \ 808 ' with the corresponding gnulib module, they are always true') \ 809 $(_sc_search_regexp) 810 811sc_prohibit_defined_have_decl_tests: 812 @prohibit='#[ ]*if(n?def|.*\<defined)\>[ (]+HAVE_DECL_' \ 813 halt='HAVE_DECL macros are always defined' \ 814 $(_sc_search_regexp) 815 816# ================================================================== 817gl_other_headers_ ?= \ 818 intprops.h \ 819 openat.h \ 820 stat-macros.h 821 822# Perl -lne code to extract "significant" cpp-defined symbols from a 823# gnulib header file, eliminating a few common false-positives. 824# The exempted names below are defined only conditionally in gnulib, 825# and hence sometimes must/may be defined in application code. 826gl_extract_significant_defines_ = \ 827 /^\# *define ([^_ (][^ (]*)(\s*\(|\s+\w+)/\ 828 && $$2 !~ /(?:rpl_|_used_without_)/\ 829 && $$1 !~ /^(?:NSIG|ENODATA)$$/\ 830 && $$1 !~ /^(?:SA_RESETHAND|SA_RESTART)$$/\ 831 and print $$1 832 833# Create a list of regular expressions matching the names 834# of macros that are guaranteed to be defined by parts of gnulib. 835define def_sym_regex 836 gen_h=$(gl_generated_headers_); \ 837 (cd $(gnulib_dir)/lib; \ 838 for f in *.in.h $(gl_other_headers_); do \ 839 test -f $$f \ 840 && perl -lne '$(gl_extract_significant_defines_)' $$f; \ 841 done; \ 842 ) | sort -u \ 843 | sed 's/^/^ *# *(define|undef) */;s/$$/\\>/' 844endef 845 846# Don't define macros that we already get from gnulib header files. 847sc_prohibit_always-defined_macros: 848 @if test -d $(gnulib_dir); then \ 849 case $$(echo all: | grep -l -f - Makefile) in Makefile);; *) \ 850 echo '$(ME): skipping $@: you lack GNU grep' 1>&2; exit 0;; \ 851 esac; \ 852 $(def_sym_regex) | grep -E -f - $$($(VC_LIST_EXCEPT)) \ 853 && { echo '$(ME): define the above via some gnulib .h file' \ 854 1>&2; exit 1; } || :; \ 855 fi 856# ================================================================== 857 858# Prohibit checked in backup files. 859sc_prohibit_backup_files: 860 @$(VC_LIST) | grep '~$$' && \ 861 { echo '$(ME): found version controlled backup file' 1>&2; \ 862 exit 1; } || : 863 864# Require the latest GPL. 865sc_GPL_version: 866 @prohibit='either ''version [^3]' \ 867 halt='GPL vN, N!=3' \ 868 $(_sc_search_regexp) 869 870# Require the latest GFDL. Two regexp, since some .texi files end up 871# line wrapping between 'Free Documentation License,' and 'Version'. 872_GFDL_regexp = (Free ''Documentation.*Version 1\.[^3]|Version 1\.[^3] or any) 873sc_GFDL_version: 874 @prohibit='$(_GFDL_regexp)' \ 875 halt='GFDL vN, N!=3' \ 876 $(_sc_search_regexp) 877 878# Don't use Texinfo's @acronym{}. 879# http://lists.gnu.org/archive/html/bug-gnulib/2010-03/msg00321.html 880texinfo_suffix_re_ ?= \.(txi|texi(nfo)?)$$ 881sc_texinfo_acronym: 882 @prohibit='@acronym\{' \ 883 in_vc_files='$(texinfo_suffix_re_)' \ 884 halt='found use of Texinfo @acronym{}' \ 885 $(_sc_search_regexp) 886 887cvs_keywords = \ 888 Author|Date|Header|Id|Name|Locker|Log|RCSfile|Revision|Source|State 889 890sc_prohibit_cvs_keyword: 891 @prohibit='\$$($(cvs_keywords))\$$' \ 892 halt='do not use CVS keyword expansion' \ 893 $(_sc_search_regexp) 894 895# This Perl code is slightly obfuscated. Not only is each "$" doubled 896# because it's in a Makefile, but the $$c's are comments; we cannot 897# use "#" due to the way the script ends up concatenated onto one line. 898# It would be much more concise, and would produce better output (including 899# counts) if written as: 900# perl -ln -0777 -e '/\n(\n+)$/ and print "$ARGV: ".length $1' ... 901# but that would be far less efficient, reading the entire contents 902# of each file, rather than just the last two bytes of each. 903# In addition, while the code below detects both blank lines and a missing 904# newline at EOF, the above detects only the former. 905# 906# This is a perl script that is expected to be the single-quoted argument 907# to a command-line "-le". The remaining arguments are file names. 908# Print the name of each file that does not end in exactly one newline byte. 909# I.e., warn if there are blank lines (2 or more newlines), or if the 910# last byte is not a newline. However, currently we don't complain 911# about any file that contains exactly one byte. 912# Exit nonzero if at least one such file is found, otherwise, exit 0. 913# Warn about, but otherwise ignore open failure. Ignore seek/read failure. 914# 915# Use this if you want to remove trailing empty lines from selected files: 916# perl -pi -0777 -e 's/\n\n+$/\n/' files... 917# 918require_exactly_one_NL_at_EOF_ = \ 919 foreach my $$f (@ARGV) \ 920 { \ 921 open F, "<", $$f or (warn "failed to open $$f: $$!\n"), next; \ 922 my $$p = sysseek (F, -2, 2); \ 923 my $$c = "seek failure probably means file has < 2 bytes; ignore"; \ 924 my $$last_two_bytes; \ 925 defined $$p and $$p = sysread F, $$last_two_bytes, 2; \ 926 close F; \ 927 $$c = "ignore read failure"; \ 928 $$p && ($$last_two_bytes eq "\n\n" \ 929 || substr ($$last_two_bytes,1) ne "\n") \ 930 and (print $$f), $$fail=1; \ 931 } \ 932 END { exit defined $$fail } 933sc_prohibit_empty_lines_at_EOF: 934 @perl -le '$(require_exactly_one_NL_at_EOF_)' $$($(VC_LIST_EXCEPT)) \ 935 || { echo '$(ME): empty line(s) or no newline at EOF' \ 936 1>&2; exit 1; } || : 937 938# Make sure we don't use st_blocks. Use ST_NBLOCKS instead. 939# This is a bit of a kludge, since it prevents use of the string 940# even in comments, but for now it does the job with no false positives. 941sc_prohibit_stat_st_blocks: 942 @prohibit='[.>]st_blocks' \ 943 halt='do not use st_blocks; use ST_NBLOCKS' \ 944 $(_sc_search_regexp) 945 946# Make sure we don't define any S_IS* macros in src/*.c files. 947# They're already defined via gnulib's sys/stat.h replacement. 948sc_prohibit_S_IS_definition: 949 @prohibit='^ *# *define *S_IS' \ 950 halt='do not define S_IS* macros; include <sys/stat.h>' \ 951 $(_sc_search_regexp) 952 953# Perl block to convert a match to FILE_NAME:LINENO:TEST, 954# that is shared by two definitions below. 955perl_filename_lineno_text_ = \ 956 -e ' {' \ 957 -e ' $$n = ($$` =~ tr/\n/\n/ + 1);' \ 958 -e ' ($$v = $$&) =~ s/\n/\\n/g;' \ 959 -e ' print "$$ARGV:$$n:$$v\n";' \ 960 -e ' }' 961 962prohibit_doubled_word_RE_ ?= \ 963 /\b(then?|[iao]n|i[fst]|but|f?or|at|and|[dt]o)\s+\1\b/gims 964prohibit_doubled_word_ = \ 965 -e 'while ($(prohibit_doubled_word_RE_))' \ 966 $(perl_filename_lineno_text_) 967 968# Define this to a regular expression that matches 969# any filename:dd:match lines you want to ignore. 970# The default is to ignore no matches. 971ignore_doubled_word_match_RE_ ?= ^$$ 972 973sc_prohibit_doubled_word: 974 @perl -n -0777 $(prohibit_doubled_word_) $$($(VC_LIST_EXCEPT)) \ 975 | grep -vE '$(ignore_doubled_word_match_RE_)' \ 976 | grep . && { echo '$(ME): doubled words' 1>&2; exit 1; } || : 977 978# A regular expression matching undesirable combinations of words like 979# "can not"; this matches them even when the two words appear on different 980# lines, but not when there is an intervening delimiter like "#" or "*". 981# Similarly undesirable, "See @xref{...}", since an @xref should start 982# a sentence. Explicitly prohibit any prefix of "see" or "also". 983# Also prohibit a prefix matching "\w+ +". 984# @pxref gets the same see/also treatment and should be parenthesized; 985# presume it must *not* start a sentence. 986bad_xref_re_ ?= (?:[\w,:;] +|(?:see|also)\s+)\@xref\{ 987bad_pxref_re_ ?= (?:[.!?]|(?:see|also))\s+\@pxref\{ 988prohibit_undesirable_word_seq_RE_ ?= \ 989 /(?:\bcan\s+not\b|$(bad_xref_re_)|$(bad_pxref_re_))/gims 990prohibit_undesirable_word_seq_ = \ 991 -e 'while ($(prohibit_undesirable_word_seq_RE_))' \ 992 $(perl_filename_lineno_text_) 993# Define this to a regular expression that matches 994# any filename:dd:match lines you want to ignore. 995# The default is to ignore no matches. 996ignore_undesirable_word_sequence_RE_ ?= ^$$ 997 998sc_prohibit_undesirable_word_seq: 999 @perl -n -0777 $(prohibit_undesirable_word_seq_) \ 1000 $$($(VC_LIST_EXCEPT)) \ 1001 | grep -vE '$(ignore_undesirable_word_sequence_RE_)' | grep . \ 1002 && { echo '$(ME): undesirable word sequence' >&2; exit 1; } || : 1003 1004_ptm1 = use "test C1 && test C2", not "test C1 -''a C2" 1005_ptm2 = use "test C1 || test C2", not "test C1 -''o C2" 1006# Using test's -a and -o operators is not portable. 1007# We prefer test over [, since the latter is spelled [[ in configure.ac. 1008sc_prohibit_test_minus_ao: 1009 @prohibit='(\<test| \[+) .+ -[ao] ' \ 1010 halt='$(_ptm1); $(_ptm2)' \ 1011 $(_sc_search_regexp) 1012 1013# Avoid a test bashism. 1014sc_prohibit_test_double_equal: 1015 @prohibit='(\<test| \[+) .+ == ' \ 1016 containing='#! */bin/[a-z]*sh' \ 1017 halt='use "test x = x", not "test x =''= x"' \ 1018 $(_sc_search_regexp) 1019 1020# Each program that uses proper_name_utf8 must link with one of the 1021# ICONV libraries. Otherwise, some ICONV library must appear in LDADD. 1022# The perl -0777 invocation below extracts the possibly-multi-line 1023# definition of LDADD from the appropriate Makefile.am and exits 0 1024# when it contains "ICONV". 1025sc_proper_name_utf8_requires_ICONV: 1026 @progs=$$(grep -l 'proper_name_utf8 ''("' $$($(VC_LIST_EXCEPT)));\ 1027 if test "x$$progs" != x; then \ 1028 fail=0; \ 1029 for p in $$progs; do \ 1030 dir=$$(dirname "$$p"); \ 1031 perl -0777 \ 1032 -ne 'exit !(/^LDADD =(.+?[^\\]\n)/ms && $$1 =~ /ICONV/)' \ 1033 $$dir/Makefile.am && continue; \ 1034 base=$$(basename "$$p" .c); \ 1035 grep "$${base}_LDADD.*ICONV)" $$dir/Makefile.am > /dev/null \ 1036 || { fail=1; echo 1>&2 "$(ME): $$p uses proper_name_utf8"; }; \ 1037 done; \ 1038 test $$fail = 1 && \ 1039 { echo 1>&2 '$(ME): the above do not link with any ICONV library'; \ 1040 exit 1; } || :; \ 1041 fi 1042 1043# Warn about "c0nst struct Foo const foo[]", 1044# but not about "char const *const foo" or "#define const const". 1045sc_redundant_const: 1046 @prohibit='\bconst\b[[:space:][:alnum:]]{2,}\bconst\b' \ 1047 halt='redundant "const" in declarations' \ 1048 $(_sc_search_regexp) 1049 1050sc_const_long_option: 1051 @prohibit='^ *static.*struct option ' \ 1052 exclude='const struct option|struct option const' \ 1053 halt='add "const" to the above declarations' \ 1054 $(_sc_search_regexp) 1055 1056NEWS_hash = \ 1057 $$(sed -n '/^\*.* $(PREV_VERSION_REGEXP) ([0-9-]*)/,$$p' \ 1058 $(srcdir)/NEWS \ 1059 | perl -0777 -pe \ 1060 's/^Copyright.+?Free\sSoftware\sFoundation,\sInc\.\n//ms' \ 1061 | md5sum - \ 1062 | sed 's/ .*//') 1063 1064# Ensure that we don't accidentally insert an entry into an old NEWS block. 1065sc_immutable_NEWS: 1066 @if test -f $(srcdir)/NEWS; then \ 1067 test "$(NEWS_hash)" = '$(old_NEWS_hash)' && : || \ 1068 { echo '$(ME): you have modified old NEWS' 1>&2; exit 1; }; \ 1069 fi 1070 1071# Update the hash stored above. Do this after each release and 1072# for any corrections to old entries. 1073update-NEWS-hash: NEWS 1074 perl -pi -e 's/^(old_NEWS_hash[ \t]+:?=[ \t]+).*/$${1}'"$(NEWS_hash)/" \ 1075 $(srcdir)/cfg.mk 1076 1077# Ensure that we use only the standard $(VAR) notation, 1078# not @...@ in Makefile.am, now that we can rely on automake 1079# to emit a definition for each substituted variable. 1080# However, there is still one case in which @VAR@ use is not just 1081# legitimate, but actually required: when augmenting an automake-defined 1082# variable with a prefix. For example, gettext uses this: 1083# MAKEINFO = env LANG= LC_MESSAGES= LC_ALL= LANGUAGE= @MAKEINFO@ 1084# otherwise, makeinfo would put German or French (current locale) 1085# navigation hints in the otherwise-English documentation. 1086# 1087# Allow the package to add exceptions via a hook in cfg.mk; 1088# for example, @PRAGMA_SYSTEM_HEADER@ can be permitted by 1089# setting this to ' && !/PRAGMA_SYSTEM_HEADER/'. 1090_makefile_at_at_check_exceptions ?= 1091sc_makefile_at_at_check: 1092 @perl -ne '/\@\w+\@/' \ 1093 -e ' && !/(\w+)\s+=.*\@\1\@$$/' \ 1094 -e ''$(_makefile_at_at_check_exceptions) \ 1095 -e 'and (print "$$ARGV:$$.: $$_"), $$m=1; END {exit !$$m}' \ 1096 $$($(VC_LIST_EXCEPT) | grep -E '(^|/)(Makefile\.am|[^/]+\.mk)$$') \ 1097 && { echo '$(ME): use $$(...), not @...@' 1>&2; exit 1; } || : 1098 1099news-check: NEWS 1100 $(AM_V_GEN)if sed -n $(news-check-lines-spec)p $< \ 1101 | grep -E $(news-check-regexp) >/dev/null; then \ 1102 :; \ 1103 else \ 1104 echo 'NEWS: $$(news-check-regexp) failed to match' 1>&2; \ 1105 exit 1; \ 1106 fi 1107 1108sc_makefile_TAB_only_indentation: 1109 @prohibit='^ [ ]{8}' \ 1110 in_vc_files='akefile|\.mk$$' \ 1111 halt='found TAB-8-space indentation' \ 1112 $(_sc_search_regexp) 1113 1114sc_m4_quote_check: 1115 @prohibit='(AC_DEFINE(_UNQUOTED)?|AC_DEFUN)\([^[]' \ 1116 in_vc_files='(^configure\.ac|\.m4)$$' \ 1117 halt='quote the first arg to AC_DEF*' \ 1118 $(_sc_search_regexp) 1119 1120fix_po_file_diag = \ 1121'you have changed the set of files with translatable diagnostics;\n\ 1122apply the above patch\n' 1123 1124# Verify that all source files using _() (more specifically, files that 1125# match $(_gl_translatable_string_re)) are listed in po/POTFILES.in. 1126po_file ?= $(srcdir)/po/POTFILES.in 1127generated_files ?= $(srcdir)/lib/*.[ch] 1128_gl_translatable_string_re ?= \b(N?_|gettext *)\([^)"]*("|$$) 1129sc_po_check: 1130 @if test -f $(po_file); then \ 1131 grep -E -v '^(#|$$)' $(po_file) \ 1132 | grep -v '^src/false\.c$$' | sort > $@-1; \ 1133 files=; \ 1134 for file in $$($(VC_LIST_EXCEPT)) $(generated_files); do \ 1135 test -r $$file || continue; \ 1136 case $$file in \ 1137 *.m4|*.mk) continue ;; \ 1138 *.?|*.??) ;; \ 1139 *) continue;; \ 1140 esac; \ 1141 case $$file in \ 1142 *.[ch]) \ 1143 base=`expr " $$file" : ' \(.*\)\..'`; \ 1144 { test -f $$base.l || test -f $$base.y; } && continue;; \ 1145 esac; \ 1146 files="$$files $$file"; \ 1147 done; \ 1148 grep -E -l '$(_gl_translatable_string_re)' $$files \ 1149 | sed 's|^$(_dot_escaped_srcdir)/||' | sort -u > $@-2; \ 1150 diff -u -L $(po_file) -L $(po_file) $@-1 $@-2 \ 1151 || { printf '$(ME): '$(fix_po_file_diag) 1>&2; exit 1; }; \ 1152 rm -f $@-1 $@-2; \ 1153 fi 1154 1155# Sometimes it is useful to change the PATH environment variable 1156# in Makefiles. When doing so, it's better not to use the Unix-centric 1157# path separator of ':', but rather the automake-provided '$(PATH_SEPARATOR)'. 1158msg = 'Do not use ":" above; use $$(PATH_SEPARATOR) instead' 1159sc_makefile_path_separator_check: 1160 @prohibit='PATH[=].*:' \ 1161 in_vc_files='akefile|\.mk$$' \ 1162 halt=$(msg) \ 1163 $(_sc_search_regexp) 1164 1165# Check that 'make alpha' will not fail at the end of the process, 1166# i.e., when pkg-M.N.tar.xz already exists (either in "." or in ../release) 1167# and is read-only. 1168writable-files: 1169 $(AM_V_GEN)if test -d $(release_archive_dir); then \ 1170 for file in $(DIST_ARCHIVES); do \ 1171 for p in ./ $(release_archive_dir)/; do \ 1172 test -e $$p$$file || continue; \ 1173 test -w $$p$$file \ 1174 || { echo ERROR: $$p$$file is not writable; fail=1; }; \ 1175 done; \ 1176 done; \ 1177 test "$$fail" && exit 1 || : ; \ 1178 else :; \ 1179 fi 1180 1181v_etc_file = $(gnulib_dir)/lib/version-etc.c 1182sample-test = tests/sample-test 1183texi = doc/$(PACKAGE).texi 1184# Make sure that the copyright date in $(v_etc_file) is up to date. 1185# Do the same for the $(sample-test) and the main doc/.texi file. 1186sc_copyright_check: 1187 @require='enum { COPYRIGHT_YEAR = '$$(date +%Y)' };' \ 1188 in_files=$(v_etc_file) \ 1189 halt='out of date copyright in $(v_etc_file); update it' \ 1190 $(_sc_search_regexp) 1191 @require='# Copyright \(C\) '$$(date +%Y)' Free' \ 1192 in_vc_files=$(sample-test) \ 1193 halt='out of date copyright in $(sample-test); update it' \ 1194 $(_sc_search_regexp) 1195 @require='Copyright @copyright\{\} .*'$$(date +%Y)' Free' \ 1196 in_vc_files=$(texi) \ 1197 halt='out of date copyright in $(texi); update it' \ 1198 $(_sc_search_regexp) 1199 1200# If tests/help-version exists and seems to be new enough, assume that its 1201# use of init.sh and path_prepend_ is correct, and ensure that every other 1202# use of init.sh is identical. 1203# This is useful because help-version cross-checks prog --version 1204# with $(VERSION), which verifies that its path_prepend_ invocation 1205# sets PATH correctly. This is an inexpensive way to ensure that 1206# the other init.sh-using tests also get it right. 1207_hv_file ?= $(srcdir)/tests/help-version 1208_hv_regex_weak ?= ^ *\. .*/init\.sh" 1209# Fix syntax-highlighters " 1210_hv_regex_strong ?= ^ *\. "\$${srcdir=\.}/init\.sh" 1211sc_cross_check_PATH_usage_in_tests: 1212 @if test -f $(_hv_file); then \ 1213 grep -l 'VERSION mismatch' $(_hv_file) >/dev/null \ 1214 || { echo "$@: skipped: no such file: $(_hv_file)" 1>&2; \ 1215 exit 0; }; \ 1216 grep -lE '$(_hv_regex_strong)' $(_hv_file) >/dev/null \ 1217 || { echo "$@: $(_hv_file) lacks conforming use of init.sh" 1>&2; \ 1218 exit 1; }; \ 1219 good=$$(grep -E '$(_hv_regex_strong)' $(_hv_file)); \ 1220 grep -LFx "$$good" \ 1221 $$(grep -lE '$(_hv_regex_weak)' $$($(VC_LIST_EXCEPT))) \ 1222 | grep . && \ 1223 { echo "$(ME): the above files use path_prepend_ inconsistently" \ 1224 1>&2; exit 1; } || :; \ 1225 fi 1226 1227# BRE regex of file contents to identify a test script. 1228_test_script_regex ?= \<init\.sh\> 1229 1230# In tests, use "compare expected actual", not the reverse. 1231sc_prohibit_reversed_compare_failure: 1232 @prohibit='\<compare [^ ]+ ([^ ]*exp|/dev/null)' \ 1233 containing='$(_test_script_regex)' \ 1234 halt='reversed compare arguments' \ 1235 $(_sc_search_regexp) 1236 1237# #if HAVE_... will evaluate to false for any non numeric string. 1238# That would be flagged by using -Wundef, however gnulib currently 1239# tests many undefined macros, and so we can't enable that option. 1240# So at least preclude common boolean strings as macro values. 1241sc_Wundef_boolean: 1242 @prohibit='^#define.*(yes|no|true|false)$$' \ 1243 in_files='$(CONFIG_INCLUDE)' \ 1244 halt='Use 0 or 1 for macro values' \ 1245 $(_sc_search_regexp) 1246 1247# Even if you use pathmax.h to guarantee that PATH_MAX is defined, it might 1248# not be constant, or might overflow a stack. In general, use PATH_MAX as 1249# a limit, not an array or alloca size. 1250sc_prohibit_path_max_allocation: 1251 @prohibit='(\balloca *\([^)]*|\[[^]]*)\bPATH_MAX' \ 1252 halt='Avoid stack allocations of size PATH_MAX' \ 1253 $(_sc_search_regexp) 1254 1255sc_vulnerable_makefile_CVE-2009-4029: 1256 @prohibit='perm -777 -exec chmod a\+rwx|chmod 777 \$$\(distdir\)' \ 1257 in_files='(^|/)Makefile\.in$$' \ 1258 halt=$$(printf '%s\n' \ 1259 'the above files are vulnerable; beware of running' \ 1260 ' "make dist*" rules, and upgrade to fixed automake' \ 1261 ' see http://bugzilla.redhat.com/542609 for details') \ 1262 $(_sc_search_regexp) 1263 1264sc_vulnerable_makefile_CVE-2012-3386: 1265 @prohibit='chmod a\+w \$$\(distdir\)' \ 1266 in_files='(^|/)Makefile\.in$$' \ 1267 halt=$$(printf '%s\n' \ 1268 'the above files are vulnerable; beware of running' \ 1269 ' "make distcheck", and upgrade to fixed automake' \ 1270 ' see http://bugzilla.redhat.com/CVE-2012-3386 for details') \ 1271 $(_sc_search_regexp) 1272 1273vc-diff-check: 1274 $(AM_V_GEN)(unset CDPATH; cd $(srcdir) && $(VC) diff) > vc-diffs || : 1275 $(AM_V_at)if test -s vc-diffs; then \ 1276 cat vc-diffs; \ 1277 echo "Some files are locally modified:" 1>&2; \ 1278 exit 1; \ 1279 else \ 1280 rm vc-diffs; \ 1281 fi 1282 1283rel-files = $(DIST_ARCHIVES) 1284 1285gnulib_dir ?= $(srcdir)/gnulib 1286gnulib-version = $$(cd $(gnulib_dir) && git describe) 1287bootstrap-tools ?= autoconf,automake,gnulib 1288 1289# If it's not already specified, derive the GPG key ID from 1290# the signed tag we've just applied to mark this release. 1291gpg_key_ID ?= \ 1292 $$(cd $(srcdir) \ 1293 && git cat-file tag v$(VERSION) \ 1294 | gpgv --status-fd 1 --keyring /dev/null - - 2>/dev/null \ 1295 | awk '/^\[GNUPG:\] ERRSIG / {print $$3; exit}') 1296 1297translation_project_ ?= coordinator@translationproject.org 1298 1299# Make info-gnu the default only for a stable release. 1300announcement_Cc_stable = $(translation_project_), $(PACKAGE_BUGREPORT) 1301announcement_mail_headers_stable = \ 1302 To: info-gnu@gnu.org \ 1303 Cc: $(announcement_Cc_) \ 1304 Mail-Followup-To: $(PACKAGE_BUGREPORT) 1305 1306announcement_Cc_alpha = $(translation_project_) 1307announcement_mail_headers_alpha = \ 1308 To: $(PACKAGE_BUGREPORT) \ 1309 Cc: $(announcement_Cc_) 1310 1311announcement_mail_Cc_beta = $(announcement_mail_Cc_alpha) 1312announcement_mail_headers_beta = $(announcement_mail_headers_alpha) 1313 1314announcement_mail_Cc_ ?= $(announcement_mail_Cc_$(release-type)) 1315announcement_mail_headers_ ?= $(announcement_mail_headers_$(release-type)) 1316announcement: NEWS ChangeLog $(rel-files) 1317# Not $(AM_V_GEN) since the output of this command serves as 1318# announcement message: it would start with " GEN announcement". 1319 $(AM_V_at)$(srcdir)/$(_build-aux)/announce-gen \ 1320 --mail-headers='$(announcement_mail_headers_)' \ 1321 --release-type=$(release-type) \ 1322 --package=$(PACKAGE) \ 1323 --prev=$(PREV_VERSION) \ 1324 --curr=$(VERSION) \ 1325 --gpg-key-id=$(gpg_key_ID) \ 1326 --srcdir=$(srcdir) \ 1327 --news=$(srcdir)/NEWS \ 1328 --bootstrap-tools=$(bootstrap-tools) \ 1329 $$(case ,$(bootstrap-tools), in (*,gnulib,*) \ 1330 echo --gnulib-version=$(gnulib-version);; esac) \ 1331 --no-print-checksums \ 1332 $(addprefix --url-dir=, $(url_dir_list)) 1333 1334.PHONY: release-commit 1335release-commit: 1336 $(AM_V_GEN)cd $(srcdir) \ 1337 && $(_build-aux)/do-release-commit-and-tag \ 1338 -C $(abs_builddir) $(RELEASE) 1339 1340## ---------------- ## 1341## Updating files. ## 1342## ---------------- ## 1343 1344ftp-gnu = ftp://ftp.gnu.org/gnu 1345www-gnu = http://www.gnu.org 1346 1347upload_dest_dir_ ?= $(PACKAGE) 1348upload_command = \ 1349 $(srcdir)/$(_build-aux)/gnupload $(GNUPLOADFLAGS) \ 1350 --to $(gnu_rel_host):$(upload_dest_dir_) \ 1351 $(rel-files) 1352emit_upload_commands: 1353 @echo ===================================== 1354 @echo ===================================== 1355 @echo '$(upload_command)' 1356 @echo '# send the ~/announce-$(my_distdir) e-mail' 1357 @echo ===================================== 1358 @echo ===================================== 1359 1360.PHONY: upload 1361upload: 1362 $(AM_V_GEN)$(upload_command) 1363 1364define emit-commit-log 1365 printf '%s\n' 'maint: post-release administrivia' '' \ 1366 '* NEWS: Add header line for next release.' \ 1367 '* .prev-version: Record previous version.' \ 1368 '* cfg.mk (old_NEWS_hash): Auto-update.' 1369endef 1370 1371.PHONY: no-submodule-changes 1372no-submodule-changes: 1373 $(AM_V_GEN)if test -d $(srcdir)/.git; then \ 1374 diff=$$(cd $(srcdir) && git submodule -q foreach \ 1375 git diff-index --name-only HEAD) \ 1376 || exit 1; \ 1377 case $$diff in '') ;; \ 1378 *) echo '$(ME): submodule files are locally modified:'; \ 1379 echo "$$diff"; exit 1;; esac; \ 1380 else \ 1381 : ; \ 1382 fi 1383 1384submodule-checks ?= no-submodule-changes public-submodule-commit 1385 1386# Ensure that each sub-module commit we're using is public. 1387# Without this, it is too easy to tag and release code that 1388# cannot be built from a fresh clone. 1389.PHONY: public-submodule-commit 1390public-submodule-commit: 1391 $(AM_V_GEN)if test -d $(srcdir)/.git; then \ 1392 cd $(srcdir) && \ 1393 git submodule --quiet foreach \ 1394 test '"$$(git rev-parse "$$sha1")"' \ 1395 = '"$$(git merge-base origin "$$sha1")"' \ 1396 || { echo '$(ME): found non-public submodule commit' >&2; \ 1397 exit 1; }; \ 1398 else \ 1399 : ; \ 1400 fi 1401# This rule has a high enough utility/cost ratio that it should be a 1402# dependent of "check" by default. However, some of us do occasionally 1403# commit a temporary change that deliberately points to a non-public 1404# submodule commit, and want to be able to use rules like "make check". 1405# In that case, run e.g., "make check gl_public_submodule_commit=" 1406# to disable this test. 1407gl_public_submodule_commit ?= public-submodule-commit 1408check: $(gl_public_submodule_commit) 1409 1410.PHONY: alpha beta stable release 1411ALL_RECURSIVE_TARGETS += alpha beta stable 1412alpha beta stable: $(local-check) writable-files $(submodule-checks) 1413 $(AM_V_GEN)test $@ = stable \ 1414 && { echo $(VERSION) | grep -E '^[0-9]+(\.[0-9]+)+$$' \ 1415 || { echo "invalid version string: $(VERSION)" 1>&2; exit 1;};}\ 1416 || : 1417 $(AM_V_at)$(MAKE) vc-diff-check 1418 $(AM_V_at)$(MAKE) news-check 1419 $(AM_V_at)$(MAKE) distcheck 1420 $(AM_V_at)$(MAKE) dist 1421 $(AM_V_at)$(MAKE) $(release-prep-hook) RELEASE_TYPE=$@ 1422 $(AM_V_at)$(MAKE) -s emit_upload_commands RELEASE_TYPE=$@ 1423 1424release: 1425 $(AM_V_GEN)$(MAKE) $(release-type) 1426 1427# Override this in cfg.mk if you follow different procedures. 1428release-prep-hook ?= release-prep 1429 1430gl_noteworthy_news_ = * Noteworthy changes in release ?.? (????-??-??) [?] 1431.PHONY: release-prep 1432release-prep: 1433 $(AM_V_GEN)$(MAKE) --no-print-directory -s announcement \ 1434 > ~/announce-$(my_distdir) 1435 $(AM_V_at)if test -d $(release_archive_dir); then \ 1436 ln $(rel-files) $(release_archive_dir); \ 1437 chmod a-w $(rel-files); \ 1438 fi 1439 $(AM_V_at)echo $(VERSION) > $(prev_version_file) 1440 $(AM_V_at)$(MAKE) update-NEWS-hash 1441 $(AM_V_at)perl -pi \ 1442 -e '$$. == 3 and print "$(gl_noteworthy_news_)\n\n\n"' \ 1443 $(srcdir)/NEWS 1444 $(AM_V_at)msg=$$($(emit-commit-log)) || exit 1; \ 1445 cd $(srcdir) && $(VC) commit -m "$$msg" -a 1446 1447# Override this with e.g., -s $(srcdir)/some_other_name.texi 1448# if the default $(PACKAGE)-derived name doesn't apply. 1449gendocs_options_ ?= 1450 1451.PHONY: web-manual 1452web-manual: 1453 $(AM_V_GEN)test -z "$(manual_title)" \ 1454 && { echo define manual_title in cfg.mk 1>&2; exit 1; } || : 1455 $(AM_V_at)cd '$(srcdir)/doc'; \ 1456 $(SHELL) ../$(_build-aux)/gendocs.sh $(gendocs_options_) \ 1457 -o '$(abs_builddir)/doc/manual' \ 1458 --email $(PACKAGE_BUGREPORT) $(PACKAGE) \ 1459 "$(PACKAGE_NAME) - $(manual_title)" 1460 $(AM_V_at)echo " *** Upload the doc/manual directory to web-cvs." 1461 1462.PHONY: web-manual-update 1463web-manual-update: 1464 $(AM_V_GEN)cd $(srcdir) \ 1465 && $(_build-aux)/gnu-web-doc-update -C $(abs_builddir) 1466 1467 1468# Code Coverage 1469 1470init-coverage: 1471 $(MAKE) $(AM_MAKEFLAGS) clean 1472 lcov --directory . --zerocounters 1473 1474COVERAGE_CCOPTS ?= "-g --coverage" 1475COVERAGE_OUT ?= doc/coverage 1476 1477build-coverage: 1478 $(MAKE) $(AM_MAKEFLAGS) CFLAGS=$(COVERAGE_CCOPTS) CXXFLAGS=$(COVERAGE_CCOPTS) 1479 $(MAKE) $(AM_MAKEFLAGS) CFLAGS=$(COVERAGE_CCOPTS) CXXFLAGS=$(COVERAGE_CCOPTS) check 1480 mkdir -p $(COVERAGE_OUT) 1481 lcov --directory . --output-file $(COVERAGE_OUT)/$(PACKAGE).info \ 1482 --capture 1483 1484gen-coverage: 1485 genhtml --output-directory $(COVERAGE_OUT) \ 1486 $(COVERAGE_OUT)/$(PACKAGE).info \ 1487 --highlight --frames --legend \ 1488 --title "$(PACKAGE_NAME)" 1489 1490coverage: init-coverage build-coverage gen-coverage 1491 1492# Some projects carry local adjustments for gnulib modules via patches in 1493# a gnulib patch directory whose default name is gl/ (defined in bootstrap 1494# via local_gl_dir=gl). Those patches become stale as the originals evolve 1495# in gnulib. Use this rule to refresh any stale patches. It applies each 1496# patch to the original in $(gnulib_dir) and uses the temporary result to 1497# generate a fuzz-free .diff file. If you customize the name of your local 1498# gnulib patch directory via bootstrap.conf, this rule detects that name. 1499# Run this from a non-VPATH (i.e., srcdir) build directory. 1500.PHONY: refresh-gnulib-patches 1501refresh-gnulib-patches: 1502 gl=gl; \ 1503 if test -f bootstrap.conf; then \ 1504 t=$$(perl -lne '/^\s*local_gl_dir=(\S+)/ and $$d=$$1;' \ 1505 -e 'END{defined $$d and print $$d}' bootstrap.conf); \ 1506 test -n "$$t" && gl=$$t; \ 1507 fi; \ 1508 for diff in $$(cd $$gl; git ls-files | grep '\.diff$$'); do \ 1509 b=$$(printf %s "$$diff"|sed 's/\.diff$$//'); \ 1510 VERSION_CONTROL=none \ 1511 patch "$(gnulib_dir)/$$b" "$$gl/$$diff" || exit 1; \ 1512 ( cd $(gnulib_dir) || exit 1; \ 1513 git diff "$$b" > "../$$gl/$$diff"; \ 1514 git checkout $$b ) || exit 1; \ 1515 done 1516 1517# Update gettext files. 1518PACKAGE ?= $(shell basename $(PWD)) 1519PO_DOMAIN ?= $(PACKAGE) 1520POURL = http://translationproject.org/latest/$(PO_DOMAIN)/ 1521PODIR ?= po 1522refresh-po: 1523 rm -f $(PODIR)/*.po && \ 1524 echo "$(ME): getting translations into po (please ignore the robots.txt ERROR 404)..." && \ 1525 wget --no-verbose --directory-prefix $(PODIR) --no-directories --recursive --level 1 --accept .po --accept .po.1 $(POURL) && \ 1526 echo 'en@boldquot' > $(PODIR)/LINGUAS && \ 1527 echo 'en@quot' >> $(PODIR)/LINGUAS && \ 1528 ls $(PODIR)/*.po | sed 's/\.po//;s,$(PODIR)/,,' | sort >> $(PODIR)/LINGUAS 1529 1530 # Running indent once is not idempotent, but running it twice is. 1531INDENT_SOURCES ?= $(C_SOURCES) 1532.PHONY: indent 1533indent: 1534 indent $(INDENT_SOURCES) 1535 indent $(INDENT_SOURCES) 1536 1537# If you want to set UPDATE_COPYRIGHT_* environment variables, 1538# put the assignments in this variable. 1539update-copyright-env ?= 1540 1541# Run this rule once per year (usually early in January) 1542# to update all FSF copyright year lists in your project. 1543# If you have an additional project-specific rule, 1544# add it in cfg.mk along with a line 'update-copyright: prereq'. 1545# By default, exclude all variants of COPYING; you can also 1546# add exemptions (such as ChangeLog..* for rotated change logs) 1547# in the file .x-update-copyright. 1548.PHONY: update-copyright 1549update-copyright: 1550 $(AM_V_GEN)grep -l -w Copyright \ 1551 $$(export VC_LIST_EXCEPT_DEFAULT=COPYING && $(VC_LIST_EXCEPT)) \ 1552 | $(update-copyright-env) xargs $(srcdir)/$(_build-aux)/$@ 1553 1554# This tight_scope test is skipped with a warning if $(_gl_TS_headers) is not 1555# overridden and $(_gl_TS_dir)/Makefile.am does not mention noinst_HEADERS. 1556 1557# NOTE: to override any _gl_TS_* default value, you must 1558# define the variable(s) using "export" in cfg.mk. 1559_gl_TS_dir ?= src 1560 1561ALL_RECURSIVE_TARGETS += sc_tight_scope 1562sc_tight_scope: tight-scope.mk 1563 @fail=0; \ 1564 if ! grep '^ *export _gl_TS_headers *=' $(srcdir)/cfg.mk \ 1565 > /dev/null \ 1566 && ! grep -w noinst_HEADERS $(srcdir)/$(_gl_TS_dir)/Makefile.am \ 1567 > /dev/null 2>&1; then \ 1568 echo '$(ME): skipping $@'; \ 1569 else \ 1570 $(MAKE) -s -C $(_gl_TS_dir) \ 1571 -f Makefile \ 1572 -f $(abs_top_srcdir)/cfg.mk \ 1573 -f $(abs_top_builddir)/$< \ 1574 _gl_tight_scope \ 1575 || fail=1; \ 1576 fi; \ 1577 rm -f $<; \ 1578 exit $$fail 1579 1580tight-scope.mk: $(ME) 1581 @rm -f $@ $@-t 1582 @perl -ne '/^# TS-start/.../^# TS-end/ and print' $(srcdir)/$(ME) > $@-t 1583 @chmod a=r $@-t && mv $@-t $@ 1584 1585ifeq (a,b) 1586# TS-start 1587 1588# Most functions should have static scope. 1589# Any that don't must be marked with 'extern', but 'main' 1590# and 'usage' are exceptions: they're always extern, but 1591# do not need to be marked. Symbols matching '__.*' are 1592# reserved by the compiler, so are automatically excluded below. 1593_gl_TS_unmarked_extern_functions ?= main usage 1594_gl_TS_function_match ?= /^(?:$(_gl_TS_extern)) +.*?(\S+) *\(/ 1595 1596# If your project uses a macro like "XTERN", then put 1597# the following in cfg.mk to override this default: 1598# export _gl_TS_extern = extern|XTERN 1599_gl_TS_extern ?= extern 1600 1601# The second nm|grep checks for file-scope variables with 'extern' scope. 1602# Without gnulib's progname module, you might put program_name here. 1603# Symbols matching '__.*' are reserved by the compiler, 1604# so are automatically excluded below. 1605_gl_TS_unmarked_extern_vars ?= 1606 1607# NOTE: the _match variables are perl expressions -- not mere regular 1608# expressions -- so that you can extend them to match other patterns 1609# and easily extract matched variable names. 1610# For example, if your project declares some global variables via 1611# a macro like this: GLOBAL(type, var_name, initializer), then you 1612# can override this definition to automatically extract those names: 1613# export _gl_TS_var_match = \ 1614# /^(?:$(_gl_TS_extern)) .*?\**(\w+)(\[.*?\])?;/ || /\bGLOBAL\(.*?,\s*(.*?),/ 1615_gl_TS_var_match ?= /^(?:$(_gl_TS_extern)) .*?(\w+)(\[.*?\])?;/ 1616 1617# The names of object files in (or relative to) $(_gl_TS_dir). 1618_gl_TS_obj_files ?= *.$(OBJEXT) 1619 1620# Files in which to search for the one-line style extern declarations. 1621# $(_gl_TS_dir)-relative. 1622_gl_TS_headers ?= $(noinst_HEADERS) 1623_gl_TS_other_headers ?= *.h 1624 1625.PHONY: _gl_tight_scope 1626_gl_tight_scope: $(bin_PROGRAMS) 1627 t=exceptions-$$$$; \ 1628 trap 's=$$?; rm -f $$t; exit $$s' 0; \ 1629 for sig in 1 2 3 13 15; do \ 1630 eval "trap 'v=`expr $$sig + 128`; (exit $$v); exit $$v' $$sig"; \ 1631 done; \ 1632 src=`for f in $(SOURCES); do \ 1633 test -f $$f && d= || d=$(srcdir)/; echo $$d$$f; done`; \ 1634 hdr=`for f in $(_gl_TS_headers); do \ 1635 test -f $$f && d= || d=$(srcdir)/; echo $$d$$f; done`; \ 1636 ( printf '^%s$$\n' '__.*' $(_gl_TS_unmarked_extern_functions); \ 1637 grep -h -A1 '^extern .*[^;]$$' $$src \ 1638 | grep -vE '^(extern |--)' | sed 's/ .*//'; \ 1639 perl -lne \ 1640 '$(_gl_TS_function_match) and print "^$$1\$$"' $$hdr; \ 1641 ) | sort -u > $$t; \ 1642 nm -e $(_gl_TS_obj_files) | sed -n 's/.* T //p'|grep -Ev -f $$t \ 1643 && { echo the above functions should have static scope >&2; \ 1644 exit 1; } || : ; \ 1645 ( printf '^%s$$\n' '__.*' $(_gl_TS_unmarked_extern_vars); \ 1646 perl -lne '$(_gl_TS_var_match) and print "^$$1\$$"' \ 1647 $$hdr $(_gl_TS_other_headers) \ 1648 ) | sort -u > $$t; \ 1649 nm -e $(_gl_TS_obj_files) | sed -n 's/.* [BCDGRS] //p' \ 1650 | sort -u | grep -Ev -f $$t \ 1651 && { echo the above variables should have static scope >&2; \ 1652 exit 1; } || : 1653# TS-end 1654endif 1655