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