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) 2001-2011 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 $$(build_aux)")
31 # Do not save the original name or timestamp in the .tar.gz file.
32 # Use --rsyncable if available.
34 $(shell gzip --help 2>/dev/null|grep rsyncable >/dev/null \
35 && printf %s --rsyncable)
36 GZIP_ENV = '--no-name --best $(gzip_rsyncable)'
41 VC_LIST = $(srcdir)/$(_build-aux)/vc-list-files -C $(srcdir)
43 # You can override this variable in cfg.mk to set your own regexp
44 # matching files to ignore.
45 VC_LIST_ALWAYS_EXCLUDE_REGEX ?= ^$$
47 # This is to preprocess robustly the output of $(VC_LIST), so that even
48 # when $(srcdir) is a pathological name like "....", the leading sed command
49 # removes only the intended prefix.
50 _dot_escaped_srcdir = $(subst .,\.,$(srcdir))
52 # Post-process $(VC_LIST) output, prepending $(srcdir)/, but only
53 # when $(srcdir) is not ".".
55 _prepend_srcdir_prefix =
57 _prepend_srcdir_prefix = | sed 's|^|$(srcdir)/|'
60 # In order to be able to consistently filter "."-relative names,
61 # (i.e., with no $(srcdir) prefix), this definition is careful to
62 # remove any $(srcdir) prefix, and to restore what it removes.
64 $(if $(exclude_file_name_regexp--$@),$(exclude_file_name_regexp--$@),^$$)
66 $(VC_LIST) | sed 's|^$(_dot_escaped_srcdir)/||' \
67 | if test -f $(srcdir)/.x-$@; then grep -vEf $(srcdir)/.x-$@; \
68 else grep -Ev -e "$${VC_LIST_EXCEPT_DEFAULT-ChangeLog}"; fi \
69 | grep -Ev -e '($(VC_LIST_ALWAYS_EXCLUDE_REGEX)|$(_sc_excl))' \
70 $(_prepend_srcdir_prefix)
72 ifeq ($(origin prev_version_file), undefined)
73 prev_version_file = $(srcdir)/.prev-version
76 PREV_VERSION := $(shell cat $(prev_version_file) 2>/dev/null)
77 VERSION_REGEXP = $(subst .,\.,$(VERSION))
78 PREV_VERSION_REGEXP = $(subst .,\.,$(PREV_VERSION))
81 this-vc-tag = v$(VERSION)
82 this-vc-tag-regexp = v$(VERSION_REGEXP)
84 tag-package = $(shell echo "$(PACKAGE)" | tr '[:lower:]' '[:upper:]')
85 tag-this-version = $(subst .,_,$(VERSION))
86 this-vc-tag = $(tag-package)-$(tag-this-version)
87 this-vc-tag-regexp = $(this-vc-tag)
89 my_distdir = $(PACKAGE)-$(VERSION)
91 # Old releases are stored here.
92 release_archive_dir ?= ../release
94 # Override gnu_rel_host and url_dir_list in cfg.mk if these are not right.
95 # Use alpha.gnu.org for alpha and beta releases.
96 # Use ftp.gnu.org for stable releases.
97 gnu_ftp_host-alpha = alpha.gnu.org
98 gnu_ftp_host-beta = alpha.gnu.org
99 gnu_ftp_host-stable = ftp.gnu.org
100 gnu_rel_host ?= $(gnu_ftp_host-$(RELEASE_TYPE))
102 ifeq ($(gnu_rel_host),ftp.gnu.org)
103 url_dir_list ?= http://ftpmirror.gnu.org/$(PACKAGE)
105 url_dir_list ?= ftp://$(gnu_rel_host)/gnu/$(PACKAGE)
108 # Override this in cfg.mk if you are using a different format in your
110 today = $(shell date +%Y-%m-%d)
112 # Select which lines of NEWS are searched for $(news-check-regexp).
113 # This is a sed line number spec. The default says that we search
114 # lines 1..10 of NEWS for $(news-check-regexp).
115 # If you want to search only line 3 or only lines 20-22, use "3" or "20,22".
116 news-check-lines-spec ?= 1,10
117 news-check-regexp ?= '^\*.* $(VERSION_REGEXP) \($(today)\)'
119 # Prevent programs like 'sort' from considering distinct strings to be equal.
120 # Doing it here saves us from having to set LC_ALL elsewhere in this file.
123 ## --------------- ##
125 ## --------------- ##
127 _cfg_mk := $(shell test -f $(srcdir)/cfg.mk && echo '$(srcdir)/cfg.mk')
129 # Collect the names of rules starting with `sc_'.
130 syntax-check-rules := $(sort $(shell sed -n 's/^\(sc_[a-zA-Z0-9_-]*\):.*/\1/p' \
131 $(srcdir)/$(ME) $(_cfg_mk)))
132 .PHONY: $(syntax-check-rules)
134 ifeq ($(shell $(VC_LIST) >/dev/null 2>&1; echo $$?),0)
135 local-checks-available += $(syntax-check-rules)
137 local-checks-available += no-vc-detected
139 @echo "No version control files detected; skipping syntax check"
141 .PHONY: $(local-checks-available)
143 # Arrange to print the name of each syntax-checking rule just before running it.
144 $(syntax-check-rules): %: %.m
145 sc_m_rules_ = $(patsubst %, %.m, $(syntax-check-rules))
146 .PHONY: $(sc_m_rules_)
148 @echo $(patsubst sc_%.m, %, $@)
149 @date +%s.%N > .sc-start-$(basename $@)
152 # Compute and print the elapsed time for each syntax-check rule.
153 sc_z_rules_ = $(patsubst %, %.z, $(syntax-check-rules))
154 .PHONY: $(sc_z_rules_)
155 $(sc_z_rules_): %.z: %
157 @end=$$(date +%s.%N); \
158 start=$$(cat .sc-start-$*); \
159 rm -f .sc-start-$*; \
160 awk -v s=$$start -v e=$$end \
161 'END {printf "%.2f $(patsubst sc_%,%,$*)\n", e - s}' < /dev/null
163 # The patsubst here is to replace each sc_% rule with its sc_%.z wrapper
164 # that computes and prints elapsed time.
166 $(patsubst sc_%, sc_%.z, \
167 $(filter-out $(local-checks-to-skip), $(local-checks-available)))
170 @$(VC_LIST) > .vc.list
171 @$(MAKE) -k $(local-check) VC_LIST='cat .vc.list'
176 # This macro searches for a given construct in the selected files and
177 # then takes some action.
179 # Parameters (shell variables):
183 # Regular expression (ERE) denoting either a forbidden construct
184 # or a required construct. Those arguments are exclusive.
186 # in_vc_files | in_files
188 # grep-E-style regexp denoting the files to check. If no files
189 # are specified the default are all the files that are under
192 # containing | non_containing
194 # Select the files (non) containing strings matching this regexp.
195 # If both arguments are specified then CONTAINING takes
200 # Extra options for grep.
208 # Message to display before to halting execution.
210 # Finally, you may exempt files based on an ERE matching file names.
211 # For example, to exempt from the sc_space_tab check all files with the
212 # .diff suffix, set this Make variable:
214 # exclude_file_name_regexp--sc_space_tab = \.diff$
216 # Note that while this functionality is mostly inherited via VC_LIST_EXCEPT,
217 # when filtering by name via in_files, we explicitly filter out matching
218 # names here as well.
220 # By default, _sc_search_regexp does not ignore case.
222 _ignore_case = $$(test -n "$$ignore_case" && printf %s -i || :)
224 define _sc_say_and_exit
225 dummy=; : so we do not need a semicolon before each use; \
226 { printf '%s\n' "$(ME): $$msg" 1>&2; exit 1; };
229 # _sc_search_regexp used to be named _prohibit_regexp. However,
230 # upgrading to the new definition and leaving the old name undefined
231 # would usually convert each custom rule using $(_prohibit_regexp)
232 # (usually defined in cfg.mk) into a no-op. This definition ensures
233 # that people know right away if they're still using the old name.
234 # FIXME: remove in 2012.
236 $(error '*** you need to s/_prohibit_regexp/_sc_search_regexp/, and adapt')
238 define _sc_search_regexp
239 dummy=; : so we do not need a semicolon before each use; \
242 test -n "$$prohibit" && test -n "$$require" \
243 && { msg='Cannot specify both prohibit and require' \
244 $(_sc_say_and_exit) } || :; \
245 test -z "$$prohibit" && test -z "$$require" \
246 && { msg='Should specify either prohibit or require' \
247 $(_sc_say_and_exit) } || :; \
248 test -n "$$in_vc_files" && test -n "$$in_files" \
249 && { msg='Cannot specify both in_vc_files and in_files' \
250 $(_sc_say_and_exit) } || :; \
251 test "x$$halt" != x \
252 || { msg='halt not defined' $(_sc_say_and_exit) }; \
254 : Filter by file name; \
255 if test -n "$$in_files"; then \
256 files=$$(find $(srcdir) | grep -E "$$in_files" \
257 | grep -Ev '$(exclude_file_name_regexp--$@)'); \
259 files=$$($(VC_LIST_EXCEPT)); \
260 if test -n "$$in_vc_files"; then \
261 files=$$(echo "$$files" | grep -E "$$in_vc_files"); \
265 : Filter by content; \
266 test -n "$$files" && test -n "$$containing" \
267 && { files=$$(grep -l "$$containing" $$files); } || :; \
268 test -n "$$files" && test -n "$$non_containing" \
269 && { files=$$(grep -vl "$$non_containing" $$files); } || :; \
271 : Check for the construct; \
272 if test -n "$$files"; then \
273 if test -n "$$prohibit"; then \
274 grep $$with_grep_options $(_ignore_case) -nE "$$prohibit" $$files \
275 && { msg="$$halt" $(_sc_say_and_exit) } || :; \
277 grep $$with_grep_options $(_ignore_case) -LE "$$require" $$files \
279 && { msg="$$halt" $(_sc_say_and_exit) } || :; \
285 sc_avoid_if_before_free:
286 @$(srcdir)/$(_build-aux)/useless-if-before-free \
287 $(useless_free_options) \
288 $$($(VC_LIST_EXCEPT) | grep -v useless-if-before-free) && \
289 { echo '$(ME): found useless "if" before "free" above' 1>&2; \
292 sc_cast_of_argument_to_free:
293 @prohibit='\<free *\( *\(' halt='don'\''t cast free argument' \
296 sc_cast_of_x_alloc_return_value:
297 @prohibit='\*\) *x(m|c|re)alloc\>' \
298 halt='don'\''t cast x*alloc return value' \
301 sc_cast_of_alloca_return_value:
302 @prohibit='\*\) *alloca\>' \
303 halt='don'\''t cast alloca return value' \
308 halt='found SPACE-TAB sequence; remove the SPACE' \
314 ifneq ($(strip $(INDENT_STYLE)),)
316 for file in $$($(VC_LIST_EXCEPT)); do \
319 if ! indent $(INDENT_STYLE) -st "$$file" | \
320 diff -u --label "$$file" -p "$$file" -; then \
327 { echo '$(ME): the above changes should be applied' \
328 'in order to unify the coding style' 1>&2; exit 1; } || :
333 # Don't use *scanf or the old ato* functions in `real' code.
334 # They provide no error checking mechanism.
335 # Instead, use strto* functions.
336 sc_prohibit_atoi_atof:
337 @prohibit='\<([fs]?scanf|ato([filq]|ll)) *\(' \
338 halt='do not use *scan''f, ato''f, ato''i, ato''l, ato''ll or ato''q' \
341 # Use STREQ rather than comparing strcmp == 0, or != 0.
343 @grep -nE '! *str''cmp *\(|\<str''cmp *\(.+\) *[!=]=' \
344 $$($(VC_LIST_EXCEPT)) \
345 | grep -vE ':# *define STRN?EQ\(' && \
346 { echo '$(ME): replace str''cmp calls above with STREQ/STRNEQ' \
349 # Pass EXIT_*, not number, to usage, exit, and error (when exiting)
350 # Convert all uses automatically, via these two commands:
351 # git grep -l '\<exit *(1)' \
352 # | grep -vEf .x-sc_prohibit_magic_number_exit \
353 # | xargs --no-run-if-empty \
354 # perl -pi -e 's/(^|[^.])\b(exit ?)\(1\)/$1$2(EXIT_FAILURE)/'
355 # git grep -l '\<exit *(0)' \
356 # | grep -vEf .x-sc_prohibit_magic_number_exit \
357 # | xargs --no-run-if-empty \
358 # perl -pi -e 's/(^|[^.])\b(exit ?)\(0\)/$1$2(EXIT_SUCCESS)/'
359 sc_prohibit_magic_number_exit:
360 @prohibit='(^|[^.])\<(usage|exit) ?\([0-9]|\<error ?\([1-9][0-9]*,' \
361 halt='use EXIT_* values rather than magic number' \
364 # Using EXIT_SUCCESS as the first argument to error is misleading,
365 # since when that parameter is 0, error does not exit. Use `0' instead.
366 sc_error_exit_success:
367 @prohibit='error *\(EXIT_SUCCESS,' \
368 in_vc_files='\.[chly]$$' \
369 halt='found error (EXIT_SUCCESS' \
372 # `FATAL:' should be fully upper-cased in error messages
373 # `WARNING:' should be fully upper-cased, or fully lower-cased
374 sc_error_message_warn_fatal:
375 @grep -nEA2 '[^rp]error *\(' $$($(VC_LIST_EXCEPT)) \
376 | grep -E '"Warning|"Fatal|"fatal' && \
377 { echo '$(ME): use FATAL, WARNING or warning' 1>&2; \
380 # Error messages should not start with a capital letter
381 sc_error_message_uppercase:
382 @grep -nEA2 '[^rp]error *\(' $$($(VC_LIST_EXCEPT)) \
384 | grep -vE '"FATAL|"WARNING|"Java|"C#|PRIuMAX' && \
385 { echo '$(ME): found capitalized error message' 1>&2; \
388 # Error messages should not end with a period
389 sc_error_message_period:
390 @grep -nEA2 '[^rp]error *\(' $$($(VC_LIST_EXCEPT)) \
391 | grep -E '[^."]\."' && \
392 { echo '$(ME): found error message ending in period' 1>&2; \
396 @prohibit=file''system \
398 halt='found use of "file''system"; spell it "file system"' \
401 # Don't use cpp tests of this symbol. All code assumes config.h is included.
402 sc_prohibit_have_config_h:
403 @prohibit='^# *if.*HAVE''_CONFIG_H' \
404 halt='found use of HAVE''_CONFIG_H; remove' \
407 # Nearly all .c files must include <config.h>. However, we also permit this
408 # via inclusion of a package-specific header, if cfg.mk specified one.
409 # config_h_header must be suitable for grep -E.
410 config_h_header ?= <config\.h>
412 @require='^# *include $(config_h_header)' \
413 in_vc_files='\.c$$' \
414 halt='the above files do not include <config.h>' \
417 # You must include <config.h> before including any other header file.
418 # This can possibly be via a package-specific header, if given by cfg.mk.
419 sc_require_config_h_first:
420 @if $(VC_LIST_EXCEPT) | grep -l '\.c$$' > /dev/null; then \
422 for i in $$($(VC_LIST_EXCEPT) | grep '\.c$$'); do \
423 grep '^# *include\>' $$i | sed 1q \
424 | grep -E '^# *include $(config_h_header)' > /dev/null \
425 || { echo $$i; fail=1; }; \
428 { echo '$(ME): the above files include some other header' \
429 'before <config.h>' 1>&2; exit 1; } || :; \
433 sc_prohibit_HAVE_MBRTOWC:
434 @prohibit='\bHAVE_MBRTOWC\b' \
435 halt="do not use $$prohibit; it is always defined" \
438 # To use this "command" macro, you must first define two shell variables:
439 # h: the header name, with no enclosing <> or ""
440 # re: a regular expression that matches IFF something provided by $h is used.
441 define _sc_header_without_use
442 dummy=; : so we do not need a semicolon before each use; \
443 h_esc=`echo '[<"]'"$$h"'[">]'|sed 's/\./\\\\./g'`; \
444 if $(VC_LIST_EXCEPT) | grep -l '\.c$$' > /dev/null; then \
445 files=$$(grep -l '^# *include '"$$h_esc" \
446 $$($(VC_LIST_EXCEPT) | grep '\.c$$')) && \
447 grep -LE "$$re" $$files | grep . && \
448 { echo "$(ME): the above files include $$h but don't use it" \
449 1>&2; exit 1; } || :; \
454 # Prohibit the inclusion of assert.h without an actual use of assert.
455 sc_prohibit_assert_without_use:
456 @h='assert.h' re='\<assert *\(' $(_sc_header_without_use)
458 # Prohibit the inclusion of close-stream.h without an actual use.
459 sc_prohibit_close_stream_without_use:
460 @h='close-stream.h' re='\<close_stream *\(' $(_sc_header_without_use)
462 # Prohibit the inclusion of getopt.h without an actual use.
463 sc_prohibit_getopt_without_use:
464 @h='getopt.h' re='\<getopt(_long)? *\(' $(_sc_header_without_use)
466 # Don't include quotearg.h unless you use one of its functions.
467 sc_prohibit_quotearg_without_use:
468 @h='quotearg.h' re='\<quotearg(_[^ ]+)? *\(' $(_sc_header_without_use)
470 # Don't include quote.h unless you use one of its functions.
471 sc_prohibit_quote_without_use:
472 @h='quote.h' re='\<quote(_n)? *\(' $(_sc_header_without_use)
474 # Don't include this header unless you use one of its functions.
475 sc_prohibit_long_options_without_use:
476 @h='long-options.h' re='\<parse_long_options *\(' \
477 $(_sc_header_without_use)
479 # Don't include this header unless you use one of its functions.
480 sc_prohibit_inttostr_without_use:
481 @h='inttostr.h' re='\<(off|[iu]max|uint)tostr *\(' \
482 $(_sc_header_without_use)
484 # Don't include this header unless you use one of its functions.
485 sc_prohibit_ignore_value_without_use:
486 @h='ignore-value.h' re='\<ignore_(value|ptr) *\(' \
487 $(_sc_header_without_use)
489 # Don't include this header unless you use one of its functions.
490 sc_prohibit_error_without_use:
492 re='\<error(_at_line|_print_progname|_one_per_line|_message_count)? *\('\
493 $(_sc_header_without_use)
495 # Don't include xalloc.h unless you use one of its functions.
496 # Consider these symbols:
497 # perl -lne '/^# *define (\w+)\(/ and print $1' lib/xalloc.h|grep -v '^__';
498 # perl -lne '/^(?:extern )?(?:void|char) \*?(\w+) *\(/ and print $1' lib/xalloc.h
499 # Divide into two sets on case, and filter each through this:
500 # | sort | perl -MRegexp::Assemble -le \
501 # 'print Regexp::Assemble->new(file => "/dev/stdin")->as_string'|sed 's/\?://g'
502 # Note this was produced by the above:
504 #x(((2n?)?re|c(har)?|n(re|m)|z)alloc|alloc_(oversized|die)|m(alloc|emdup)|strdup)
505 # But we can do better, in at least two ways:
506 # 1) take advantage of two "dup"-suffixed strings:
507 # x(((2n?)?re|c(har)?|n(re|m)|[mz])alloc|alloc_(oversized|die)|(mem|str)dup)
508 # 2) notice that "c(har)?|[mz]" is equivalent to the shorter and more readable
510 # x(((2n?)?re|char|n(re|m)|[cmz])alloc|alloc_(oversized|die)|(mem|str)dup)
511 _xa1 = x(((2n?)?re|char|n(re|m)|[cmz])alloc|alloc_(oversized|die)|(mem|str)dup)
512 _xa2 = X([CZ]|N?M)ALLOC
513 sc_prohibit_xalloc_without_use:
515 re='\<($(_xa1)|$(_xa2)) *\('\
516 $(_sc_header_without_use)
518 # Extract function names:
519 # perl -lne '/^(?:extern )?(?:void|char) \*?(\w+) *\(/ and print $1' lib/hash.h
521 clear|delete|free|get_(first|next)|insert|lookup|print_statistics|reset_tuning
522 _hash_fn = \<($(_hash_re)) *\(
523 _hash_struct = (struct )?\<[Hh]ash_(table|tuning)\>
524 sc_prohibit_hash_without_use:
526 re='$(_hash_fn)|$(_hash_struct)'\
527 $(_sc_header_without_use)
529 sc_prohibit_cloexec_without_use:
530 @h='cloexec.h' re='\<(set_cloexec_flag|dup_cloexec) *\(' \
531 $(_sc_header_without_use)
533 sc_prohibit_posixver_without_use:
534 @h='posixver.h' re='\<posix2_version *\(' $(_sc_header_without_use)
536 sc_prohibit_same_without_use:
537 @h='same.h' re='\<same_name *\(' $(_sc_header_without_use)
539 sc_prohibit_hash_pjw_without_use:
541 re='\<hash_pjw *\(' \
542 $(_sc_header_without_use)
544 sc_prohibit_safe_read_without_use:
545 @h='safe-read.h' re='(\<SAFE_READ_ERROR\>|\<safe_read *\()' \
546 $(_sc_header_without_use)
548 sc_prohibit_argmatch_without_use:
550 re='(\<(ARRAY_CARDINALITY|X?ARGMATCH(|_TO_ARGUMENT|_VERIFY))\>|\<(invalid_arg|argmatch(_exit_fn|_(in)?valid)?) *\()' \
551 $(_sc_header_without_use)
553 sc_prohibit_canonicalize_without_use:
554 @h='canonicalize.h' \
555 re='CAN_(EXISTING|ALL_BUT_LAST|MISSING)|canonicalize_(mode_t|filename_mode)' \
556 $(_sc_header_without_use)
558 sc_prohibit_root_dev_ino_without_use:
559 @h='root-dev-ino.h' \
560 re='(\<ROOT_DEV_INO_(CHECK|WARN)\>|\<get_root_dev_ino *\()' \
561 $(_sc_header_without_use)
563 sc_prohibit_openat_without_use:
565 re='\<(openat_(permissive|needs_fchdir|(save|restore)_fail)|l?(stat|ch(own|mod))at|(euid)?accessat)\>' \
566 $(_sc_header_without_use)
568 # Prohibit the inclusion of c-ctype.h without an actual use.
569 ctype_re = isalnum|isalpha|isascii|isblank|iscntrl|isdigit|isgraph|islower\
570 |isprint|ispunct|isspace|isupper|isxdigit|tolower|toupper
571 sc_prohibit_c_ctype_without_use:
572 @h='c-ctype.h' re='\<c_($(ctype_re)) *\(' \
573 $(_sc_header_without_use)
576 _sp = $(_empty) $(_empty)
577 # The following list was generated by running:
578 # man signal.h|col -b|perl -ne '/bsd_signal.*;/.../sigwaitinfo.*;/ and print' \
579 # | perl -lne '/^\s+(?:int|void).*?(\w+).*/ and print $1' | fmt
581 bsd_signal kill killpg pthread_kill pthread_sigmask raise sigaction \
582 sigaddset sigaltstack sigdelset sigemptyset sigfillset sighold sigignore \
583 siginterrupt sigismember signal sigpause sigpending sigprocmask sigqueue \
584 sigrelse sigset sigsuspend sigtimedwait sigwait sigwaitinfo
585 _sig_function_re = $(subst $(_sp),|,$(strip $(_sig_functions)))
586 # The following were extracted from "man signal.h" manually.
587 _sig_types_and_consts = \
588 MINSIGSTKSZ SA_NOCLDSTOP SA_NOCLDWAIT SA_NODEFER SA_ONSTACK \
589 SA_RESETHAND SA_RESTART SA_SIGINFO SIGEV_NONE SIGEV_SIGNAL \
590 SIGEV_THREAD SIGSTKSZ SIG_BLOCK SIG_SETMASK SIG_UNBLOCK SS_DISABLE \
591 SS_ONSTACK mcontext_t pid_t sig_atomic_t sigevent siginfo_t sigset_t \
592 sigstack sigval stack_t ucontext_t
593 # generated via this:
594 # perl -lne '/^#ifdef (SIG\w+)/ and print $1' lib/sig2str.c|sort -u|fmt -70
596 SIGABRT SIGALRM SIGALRM1 SIGBUS SIGCANCEL SIGCHLD SIGCLD SIGCONT \
597 SIGDANGER SIGDIL SIGEMT SIGFPE SIGFREEZE SIGGRANT SIGHUP SIGILL \
598 SIGINFO SIGINT SIGIO SIGIOT SIGKAP SIGKILL SIGKILLTHR SIGLOST SIGLWP \
599 SIGMIGRATE SIGMSG SIGPHONE SIGPIPE SIGPOLL SIGPRE SIGPROF SIGPWR \
600 SIGQUIT SIGRETRACT SIGSAK SIGSEGV SIGSOUND SIGSTKFLT SIGSTOP SIGSYS \
601 SIGTERM SIGTHAW SIGTRAP SIGTSTP SIGTTIN SIGTTOU SIGURG SIGUSR1 \
602 SIGUSR2 SIGVIRT SIGVTALRM SIGWAITING SIGWINCH SIGWIND SIGWINDOW \
604 _sig_syms_re = $(subst $(_sp),|,$(strip $(_sig_names) $(_sig_types_and_consts)))
606 # Prohibit the inclusion of signal.h without an actual use.
607 sc_prohibit_signal_without_use:
609 re='\<($(_sig_function_re)) *\(|\<($(_sig_syms_re))\>' \
610 $(_sc_header_without_use)
612 # Don't include stdio--.h unless you use one of its functions.
613 sc_prohibit_stdio--_without_use:
614 @h='stdio--.h' re='\<((f(re)?|p)open|tmpfile) *\(' \
615 $(_sc_header_without_use)
617 # Don't include stdio-safer.h unless you use one of its functions.
618 sc_prohibit_stdio-safer_without_use:
619 @h='stdio-safer.h' re='\<((f(re)?|p)open|tmpfile)_safer *\(' \
620 $(_sc_header_without_use)
622 # Prohibit the inclusion of strings.h without a sensible use.
623 # Using the likes of bcmp, bcopy, bzero, index or rindex is not sensible.
624 sc_prohibit_strings_without_use:
626 re='\<(strn?casecmp|ffs(ll)?)\>' \
627 $(_sc_header_without_use)
629 # Get the list of symbol names with this:
630 # perl -lne '/^# *define ([A-Z]\w+)\(/ and print $1' lib/intprops.h|fmt
632 TYPE_IS_INTEGER TYPE_TWOS_COMPLEMENT TYPE_ONES_COMPLEMENT \
633 TYPE_SIGNED_MAGNITUDE TYPE_SIGNED TYPE_MINIMUM TYPE_MAXIMUM \
634 INT_BITS_STRLEN_BOUND INT_STRLEN_BOUND INT_BUFSIZE_BOUND \
635 INT_ADD_RANGE_OVERFLOW INT_SUBTRACT_RANGE_OVERFLOW \
636 INT_NEGATE_RANGE_OVERFLOW INT_MULTIPLY_RANGE_OVERFLOW \
637 INT_DIVIDE_RANGE_OVERFLOW INT_REMAINDER_RANGE_OVERFLOW \
638 INT_LEFT_SHIFT_RANGE_OVERFLOW INT_ADD_OVERFLOW INT_SUBTRACT_OVERFLOW \
639 INT_NEGATE_OVERFLOW INT_MULTIPLY_OVERFLOW INT_DIVIDE_OVERFLOW \
640 INT_REMAINDER_OVERFLOW INT_LEFT_SHIFT_OVERFLOW
641 _intprops_syms_re = $(subst $(_sp),|,$(strip $(_intprops_names)))
642 # Prohibit the inclusion of intprops.h without an actual use.
643 sc_prohibit_intprops_without_use:
645 re='\<($(_intprops_syms_re)) *\(' \
646 $(_sc_header_without_use)
648 _stddef_syms_re = NULL|offsetof|ptrdiff_t|size_t|wchar_t
649 # Prohibit the inclusion of stddef.h without an actual use.
650 sc_prohibit_stddef_without_use:
652 re='\<($(_stddef_syms_re))\>' \
653 $(_sc_header_without_use)
655 _de1 = dirfd|(close|(fd)?open|read|rewind|seek|tell)dir(64)?(_r)?
656 _de2 = (versionsort|struct dirent|getdirentries|alphasort|scandir(at)?)(64)?
657 _de3 = MAXNAMLEN|DIR|ino_t|d_ino|d_fileno|d_namlen
658 _dirent_syms_re = $(_de1)|$(_de2)|$(_de3)
659 # Prohibit the inclusion of dirent.h without an actual use.
660 sc_prohibit_dirent_without_use:
662 re='\<($(_dirent_syms_re))\>' \
663 $(_sc_header_without_use)
665 # Prohibit the inclusion of verify.h without an actual use.
666 sc_prohibit_verify_without_use:
668 re='\<(verify(true|expr)?|static_assert) *\(' \
669 $(_sc_header_without_use)
671 # Don't include xfreopen.h unless you use one of its functions.
672 sc_prohibit_xfreopen_without_use:
673 @h='xfreopen.h' re='\<xfreopen *\(' $(_sc_header_without_use)
676 @prohibit='\<(HAVE''_FCNTL_H|O''_NDELAY)\>' \
677 halt='do not use HAVE''_FCNTL_H or O'_NDELAY \
680 # FIXME: warn about definitions of EXIT_FAILURE, EXIT_SUCCESS, STREQ
682 # Each nonempty ChangeLog line must start with a year number, or a TAB.
684 @prohibit='^[^12 ]' \
685 in_vc_files='^ChangeLog$$' \
686 halt='found unexpected prefix in a ChangeLog' \
689 # Ensure that each .c file containing a "main" function also
690 # calls set_program_name.
692 @require='set_program_name *\(m?argv\[0\]\);' \
693 in_vc_files='\.c$$' \
694 containing='\<main *(' \
695 halt='the above files do not call set_program_name' \
698 # Ensure that each .c file containing a "main" function also
699 # calls bindtextdomain.
701 @require='bindtextdomain *\(' \
702 in_vc_files='\.c$$' \
703 containing='\<main *(' \
704 halt='the above files do not call bindtextdomain' \
707 # Require that the final line of each test-lib.sh-using test be this one:
709 # Note: this test requires GNU grep's --label= option.
710 Exit_witness_file ?= tests/test-lib.sh
711 Exit_base := $(notdir $(Exit_witness_file))
712 sc_require_test_exit_idiom:
713 @if test -f $(srcdir)/$(Exit_witness_file); then \
715 for i in $$(grep -l -F 'srcdir/$(Exit_base)' \
716 $$($(VC_LIST) tests)); do \
717 tail -n1 $$i | grep '^Exit .' > /dev/null \
718 && : || { die=1; echo $$i; } \
721 { echo 1>&2 '$(ME): the final line in each of the above is not:'; \
722 echo 1>&2 'Exit something'; \
728 halt='found trailing blank(s)' \
731 # Match lines like the following, but where there is only one space
732 # between the options and the description:
733 # -D, --all-repeated[=delimit-method] print all duplicate lines\n
734 longopt_re = --[a-z][0-9A-Za-z-]*(\[?=[0-9A-Za-z-]*\]?)?
735 sc_two_space_separator_in_usage:
736 @prohibit='^ *(-[A-Za-z],)? $(longopt_re) [^ ].*\\$$' \
737 halt='help2man requires at least two spaces between an option and its description'\
740 # A regexp matching function names like "error" that may be used
741 # to emit translatable messages.
742 _gl_translatable_diag_func_re ?= error
744 # Look for diagnostics that aren't marked for translation.
745 # This won't find any for which error's format string is on a separate line.
746 sc_unmarked_diagnostics:
748 '\<$(_gl_translatable_diag_func_re) *\([^"]*"[^"]*[a-z]{3}' \
749 $$($(VC_LIST_EXCEPT)) \
750 | grep -Ev '(_|ngettext ?)\(' && \
751 { echo '$(ME): found unmarked diagnostic(s)' 1>&2; \
754 # Avoid useless parentheses like those in this example:
755 # #if defined (SYMBOL) || defined (SYM2)
756 sc_useless_cpp_parens:
757 @prohibit='^# *if .*defined *\(' \
758 halt='found useless parentheses in cpp directive' \
761 # List headers for which HAVE_HEADER_H is always true, assuming you are
762 # using the appropriate gnulib module. CAUTION: for each "unnecessary"
763 # #if HAVE_HEADER_H that you remove, be sure that your project explicitly
764 # requires the gnulib module that guarantees the usability of that header.
765 gl_assured_headers_ = \
766 cd $(gnulib_dir)/lib && echo *.in.h|sed 's/\.in\.h//g'
768 # Convert the list of names to upper case, and replace each space with "|".
769 az_ = abcdefghijklmnopqrstuvwxyz
770 AZ_ = ABCDEFGHIJKLMNOPQRSTUVWXYZ
771 gl_header_upper_case_or_ = \
772 $$($(gl_assured_headers_) \
773 | tr $(az_)/.- $(AZ_)___ \
776 sc_prohibit_always_true_header_tests:
777 @or=$(gl_header_upper_case_or_); \
778 re="HAVE_($$or)_H"; \
779 prohibit='\<'"$$re"'\>' \
780 halt=$$(printf '%s\n' \
781 'do not test the above HAVE_<header>_H symbol(s);' \
782 ' with the corresponding gnulib module, they are always true') \
785 # ==================================================================
786 gl_other_headers_ ?= \
791 # Perl -lne code to extract "significant" cpp-defined symbols from a
792 # gnulib header file, eliminating a few common false-positives.
793 # The exempted names below are defined only conditionally in gnulib,
794 # and hence sometimes must/may be defined in application code.
795 gl_extract_significant_defines_ = \
796 /^\# *define ([^_ (][^ (]*)(\s*\(|\s+\w+)/\
797 && $$2 !~ /(?:rpl_|_used_without_)/\
798 && $$1 !~ /^(?:NSIG|ENODATA)$$/\
799 && $$1 !~ /^(?:SA_RESETHAND|SA_RESTART)$$/\
802 # Create a list of regular expressions matching the names
803 # of macros that are guaranteed to be defined by parts of gnulib.
805 gen_h=$(gl_generated_headers_); \
806 (cd $(gnulib_dir)/lib; \
807 for f in *.in.h $(gl_other_headers_); do \
809 && perl -lne '$(gl_extract_significant_defines_)' $$f; \
812 | sed 's/^/^ *# *(define|undef) */;s/$$/\\>/'
815 # Don't define macros that we already get from gnulib header files.
816 sc_prohibit_always-defined_macros:
817 @if test -d $(gnulib_dir); then \
818 case $$(echo all: | grep -l -f - Makefile) in Makefile);; *) \
819 echo '$(ME): skipping $@: you lack GNU grep' 1>&2; exit 0;; \
821 $(def_sym_regex) | grep -E -f - $$($(VC_LIST_EXCEPT)) \
822 && { echo '$(ME): define the above via some gnulib .h file' \
823 1>&2; exit 1; } || :; \
825 # ==================================================================
827 # Prohibit checked in backup files.
828 sc_prohibit_backup_files:
829 @$(VC_LIST) | grep '~$$' && \
830 { echo '$(ME): found version controlled backup file' 1>&2; \
833 # Require the latest GPL.
835 @prohibit='either ''version [^3]' \
836 halt='GPL vN, N!=3' \
839 # Require the latest GFDL. Two regexp, since some .texi files end up
840 # line wrapping between 'Free Documentation License,' and 'Version'.
841 _GFDL_regexp = (Free ''Documentation.*Version 1\.[^3]|Version 1\.[^3] or any)
843 @prohibit='$(_GFDL_regexp)' \
844 halt='GFDL vN, N!=3' \
847 # Don't use Texinfo's @acronym{}.
848 # http://lists.gnu.org/archive/html/bug-gnulib/2010-03/msg00321.html
849 texinfo_suffix_re_ ?= \.(txi|texi(nfo)?)$$
851 @prohibit='@acronym\{' \
852 in_vc_files='$(texinfo_suffix_re_)' \
853 halt='found use of Texinfo @acronym{}' \
857 Author|Date|Header|Id|Name|Locker|Log|RCSfile|Revision|Source|State
859 sc_prohibit_cvs_keyword:
860 @prohibit='\$$($(cvs_keywords))\$$' \
861 halt='do not use CVS keyword expansion' \
864 # This Perl code is slightly obfuscated. Not only is each "$" doubled
865 # because it's in a Makefile, but the $$c's are comments; we cannot
866 # use "#" due to the way the script ends up concatenated onto one line.
867 # It would be much more concise, and would produce better output (including
868 # counts) if written as:
869 # perl -ln -0777 -e '/\n(\n+)$/ and print "$ARGV: ".length $1' ...
870 # but that would be far less efficient, reading the entire contents
871 # of each file, rather than just the last two bytes of each.
872 # In addition, while the code below detects both blank lines and a missing
873 # newline at EOF, the above detects only the former.
875 # This is a perl script that is expected to be the single-quoted argument
876 # to a command-line "-le". The remaining arguments are file names.
877 # Print the name of each file that ends in exactly one newline byte.
878 # I.e., warn if there are blank lines (2 or more newlines), or if the
879 # last byte is not a newline. However, currently we don't complain
880 # about any file that contains exactly one byte.
881 # Exit nonzero if at least one such file is found, otherwise, exit 0.
882 # Warn about, but otherwise ignore open failure. Ignore seek/read failure.
884 # Use this if you want to remove trailing empty lines from selected files:
885 # perl -pi -0777 -e 's/\n\n+$/\n/' files...
887 require_exactly_one_NL_at_EOF_ = \
888 foreach my $$f (@ARGV) \
890 open F, "<", $$f or (warn "failed to open $$f: $$!\n"), next; \
891 my $$p = sysseek (F, -2, 2); \
892 my $$c = "seek failure probably means file has < 2 bytes; ignore"; \
893 my $$last_two_bytes; \
894 defined $$p and $$p = sysread F, $$last_two_bytes, 2; \
896 $$c = "ignore read failure"; \
897 $$p && ($$last_two_bytes eq "\n\n" \
898 || substr ($$last_two_bytes,1) ne "\n") \
899 and (print $$f), $$fail=1; \
901 END { exit defined $$fail }
902 sc_prohibit_empty_lines_at_EOF:
903 @perl -le '$(require_exactly_one_NL_at_EOF_)' $$($(VC_LIST_EXCEPT)) \
904 || { echo '$(ME): empty line(s) or no newline at EOF' \
907 # Make sure we don't use st_blocks. Use ST_NBLOCKS instead.
908 # This is a bit of a kludge, since it prevents use of the string
909 # even in comments, but for now it does the job with no false positives.
910 sc_prohibit_stat_st_blocks:
911 @prohibit='[.>]st_blocks' \
912 halt='do not use st_blocks; use ST_NBLOCKS' \
915 # Make sure we don't define any S_IS* macros in src/*.c files.
916 # They're already defined via gnulib's sys/stat.h replacement.
917 sc_prohibit_S_IS_definition:
918 @prohibit='^ *# *define *S_IS' \
919 halt='do not define S_IS* macros; include <sys/stat.h>' \
922 # Perl block to convert a match to FILE_NAME:LINENO:TEST,
923 # that is shared by two definitions below.
924 perl_filename_lineno_text_ = \
926 -e ' $$n = ($$` =~ tr/\n/\n/ + 1);' \
927 -e ' ($$v = $$&) =~ s/\n/\\n/g;' \
928 -e ' print "$$ARGV:$$n:$$v\n";' \
931 prohibit_doubled_word_RE_ ?= \
932 /\b(then?|[iao]n|i[fst]|but|f?or|at|and|[dt]o)\s+\1\b/gims
933 prohibit_doubled_word_ = \
934 -e 'while ($(prohibit_doubled_word_RE_))' \
935 $(perl_filename_lineno_text_)
937 # Define this to a regular expression that matches
938 # any filename:dd:match lines you want to ignore.
939 # The default is to ignore no matches.
940 ignore_doubled_word_match_RE_ ?= ^$$
942 sc_prohibit_doubled_word:
943 @perl -n -0777 $(prohibit_doubled_word_) $$($(VC_LIST_EXCEPT)) \
944 | grep -vE '$(ignore_doubled_word_match_RE_)' \
945 | grep . && { echo '$(ME): doubled words' 1>&2; exit 1; } || :
947 # A regular expression matching undesirable combinations of words like
948 # "can not"; this matches them even when the two words appear on different
949 # lines, but not when there is an intervening delimiter like "#" or "*".
950 prohibit_undesirable_word_seq_RE_ ?= \
952 prohibit_undesirable_word_seq_ = \
953 -e 'while ($(prohibit_undesirable_word_seq_RE_))' \
954 $(perl_filename_lineno_text_)
955 # Define this to a regular expression that matches
956 # any filename:dd:match lines you want to ignore.
957 # The default is to ignore no matches.
958 ignore_undesirable_word_sequence_RE_ ?= ^$$
960 sc_prohibit_undesirable_word_seq:
961 @perl -n -0777 $(prohibit_undesirable_word_seq_) \
962 $$($(VC_LIST_EXCEPT)) \
963 | grep -vE '$(ignore_undesirable_word_sequence_RE_)' | grep . \
964 && { echo '$(ME): undesirable word sequence' >&2; exit 1; } || :
966 _ptm1 = use "test C1 && test C2", not "test C1 -''a C2"
967 _ptm2 = use "test C1 || test C2", not "test C1 -''o C2"
968 # Using test's -a and -o operators is not portable.
969 # We prefer test over [, since the latter is spelled [[ in configure.ac.
970 sc_prohibit_test_minus_ao:
971 @prohibit='(\<test| \[+) .+ -[ao] ' \
972 halt='$(_ptm1); $(_ptm2)' \
975 # Avoid a test bashism.
976 sc_prohibit_test_double_equal:
977 @prohibit='(\<test| \[+) .+ == ' \
978 containing='#! */bin/[a-z]*sh' \
979 halt='use "test x = x", not "test x =''= x"' \
982 # Each program that uses proper_name_utf8 must link with one of the
983 # ICONV libraries. Otherwise, some ICONV library must appear in LDADD.
984 # The perl -0777 invocation below extracts the possibly-multi-line
985 # definition of LDADD from the appropriate Makefile.am and exits 0
986 # when it contains "ICONV".
987 sc_proper_name_utf8_requires_ICONV:
988 @progs=$$(grep -l 'proper_name_utf8 ''("' $$($(VC_LIST_EXCEPT)));\
989 if test "x$$progs" != x; then \
991 for p in $$progs; do \
992 dir=$$(dirname "$$p"); \
994 -ne 'exit !(/^LDADD =(.+?[^\\]\n)/ms && $$1 =~ /ICONV/)' \
995 $$dir/Makefile.am && continue; \
996 base=$$(basename "$$p" .c); \
997 grep "$${base}_LDADD.*ICONV)" $$dir/Makefile.am > /dev/null \
998 || { fail=1; echo 1>&2 "$(ME): $$p uses proper_name_utf8"; }; \
1000 test $$fail = 1 && \
1001 { echo 1>&2 '$(ME): the above do not link with any ICONV library'; \
1005 # Warn about "c0nst struct Foo const foo[]",
1006 # but not about "char const *const foo" or "#define const const".
1008 @prohibit='\bconst\b[[:space:][:alnum:]]{2,}\bconst\b' \
1009 halt='redundant "const" in declarations' \
1010 $(_sc_search_regexp)
1012 sc_const_long_option:
1013 @grep '^ *static.*struct option ' $$($(VC_LIST_EXCEPT)) \
1014 | grep -Ev 'const struct option|struct option const' && { \
1015 echo 1>&2 '$(ME): add "const" to the above declarations'; \
1019 $$(sed -n '/^\*.* $(PREV_VERSION_REGEXP) ([0-9-]*)/,$$p' \
1022 's/^Copyright.+?Free\sSoftware\sFoundation,\sInc\.\n//ms' \
1026 # Ensure that we don't accidentally insert an entry into an old NEWS block.
1028 @if test -f $(srcdir)/NEWS; then \
1029 test "$(NEWS_hash)" = '$(old_NEWS_hash)' && : || \
1030 { echo '$(ME): you have modified old NEWS' 1>&2; exit 1; }; \
1033 # Update the hash stored above. Do this after each release and
1034 # for any corrections to old entries.
1035 update-NEWS-hash: NEWS
1036 perl -pi -e 's/^(old_NEWS_hash[ \t]+:?=[ \t]+).*/$${1}'"$(NEWS_hash)/" \
1039 # Ensure that we use only the standard $(VAR) notation,
1040 # not @...@ in Makefile.am, now that we can rely on automake
1041 # to emit a definition for each substituted variable.
1042 # However, there is still one case in which @VAR@ use is not just
1043 # legitimate, but actually required: when augmenting an automake-defined
1044 # variable with a prefix. For example, gettext uses this:
1045 # MAKEINFO = env LANG= LC_MESSAGES= LC_ALL= LANGUAGE= @MAKEINFO@
1046 # otherwise, makeinfo would put German or French (current locale)
1047 # navigation hints in the otherwise-English documentation.
1049 # Allow the package to add exceptions via a hook in cfg.mk;
1050 # for example, @PRAGMA_SYSTEM_HEADER@ can be permitted by
1051 # setting this to ' && !/PRAGMA_SYSTEM_HEADER/'.
1052 _makefile_at_at_check_exceptions ?=
1053 sc_makefile_at_at_check:
1054 @perl -ne '/\@[A-Z_0-9]+\@/' \
1055 -e ' && !/([A-Z_0-9]+)\s+=.*\@\1\@$$/' \
1056 -e ''$(_makefile_at_at_check_exceptions) \
1057 -e 'and (print "$$ARGV:$$.: $$_"), $$m=1; END {exit !$$m}' \
1058 $$($(VC_LIST_EXCEPT) | grep -E '(^|/)(Makefile\.am|[^/]+\.mk)$$') \
1059 && { echo '$(ME): use $$(...), not @...@' 1>&2; exit 1; } || :
1062 if sed -n $(news-check-lines-spec)p $(srcdir)/NEWS \
1063 | grep -E $(news-check-regexp) >/dev/null; then \
1066 echo 'NEWS: $$(news-check-regexp) failed to match' 1>&2; \
1070 sc_makefile_TAB_only_indentation:
1071 @prohibit='^ [ ]{8}' \
1072 in_vc_files='akefile|\.mk$$' \
1073 halt='found TAB-8-space indentation' \
1074 $(_sc_search_regexp)
1077 @prohibit='(AC_DEFINE(_UNQUOTED)?|AC_DEFUN)\([^[]' \
1078 in_vc_files='(^configure\.ac|\.m4)$$' \
1079 halt='quote the first arg to AC_DEF*' \
1080 $(_sc_search_regexp)
1082 fix_po_file_diag = \
1083 'you have changed the set of files with translatable diagnostics;\n\
1084 apply the above patch\n'
1086 # Verify that all source files using _() are listed in po/POTFILES.in.
1087 po_file ?= $(srcdir)/po/POTFILES.in
1088 generated_files ?= $(srcdir)/lib/*.[ch]
1089 generated_files_sharing_po = \
1090 $(if $(wildcard $(srcdir)/lib/po/POTFILES.in),,$(generated_files))
1092 @if test -f $(po_file); then \
1093 grep -E -v '^(#|$$)' $(po_file) \
1094 | grep -v '^src/false\.c$$' | sort > $@-1; \
1096 for file in $$($(VC_LIST_EXCEPT)) \
1097 $(generated_files_sharing_po); do \
1098 test -r $$file || continue; \
1100 *.m4|*.mk) continue ;; \
1106 base=`expr " $$file" : ' \(.*\)\..'`; \
1107 { test -f $$base.l || test -f $$base.y; } && continue;; \
1109 files="$$files $$file"; \
1111 grep -E -l '\b(N?_|gettext *)\([^)"]*("|$$)' $$files \
1112 | sed 's|^$(_dot_escaped_srcdir)/||' | sort -u > $@-2; \
1113 diff -u -L $(po_file) -L $(po_file) $@-1 $@-2 \
1114 || { printf '$(ME): '$(fix_po_file_diag) 1>&2; exit 1; }; \
1118 # Sometimes it is useful to change the PATH environment variable
1119 # in Makefiles. When doing so, it's better not to use the Unix-centric
1120 # path separator of `:', but rather the automake-provided `$(PATH_SEPARATOR)'.
1121 msg = '$(ME): Do not use `:'\'' above; use $$(PATH_SEPARATOR) instead'
1122 sc_makefile_path_separator_check:
1123 @prohibit='PATH[=].*:' \
1124 in_vc_files='akefile|\.mk$$' \
1126 $(_sc_search_regexp)
1128 # Check that `make alpha' will not fail at the end of the process,
1129 # i.e., when pkg-M.N.tar.xz already exists (either in "." or in ../release)
1132 if test -d $(release_archive_dir); then \
1133 for file in $(DIST_ARCHIVES); do \
1134 for p in ./ $(release_archive_dir)/; do \
1135 test -e $$p$$file || continue; \
1137 || { echo ERROR: $$p$$file is not writable; fail=1; }; \
1140 test "$$fail" && exit 1 || : ; \
1144 v_etc_file = $(gnulib_dir)/lib/version-etc.c
1145 sample-test = tests/sample-test
1146 texi = doc/$(PACKAGE).texi
1147 # Make sure that the copyright date in $(v_etc_file) is up to date.
1148 # Do the same for the $(sample-test) and the main doc/.texi file.
1150 @require='enum { COPYRIGHT_YEAR = '$$(date +%Y)' };' \
1151 in_files=$(v_etc_file) \
1152 halt='out of date copyright in $(v_etc_file); update it' \
1153 $(_sc_search_regexp)
1154 @require='# Copyright \(C\) '$$(date +%Y)' Free' \
1155 in_vc_files=$(sample-test) \
1156 halt='out of date copyright in $(sample-test); update it' \
1157 $(_sc_search_regexp)
1158 @require='Copyright @copyright\{\} .*'$$(date +%Y)' Free' \
1159 in_vc_files=$(texi) \
1160 halt='out of date copyright in $(texi); update it' \
1161 $(_sc_search_regexp)
1163 # If tests/help-version exists and seems to be new enough, assume that its
1164 # use of init.sh and path_prepend_ is correct, and ensure that every other
1165 # use of init.sh is identical.
1166 # This is useful because help-version cross-checks prog --version
1167 # with $(VERSION), which verifies that its path_prepend_ invocation
1168 # sets PATH correctly. This is an inexpensive way to ensure that
1169 # the other init.sh-using tests also get it right.
1170 _hv_file ?= $(srcdir)/tests/help-version
1171 _hv_regex_weak ?= ^ *\. .*/init\.sh"
1172 # Fix syntax-highlighters "
1173 _hv_regex_strong ?= ^ *\. "\$${srcdir=\.}/init\.sh"
1174 sc_cross_check_PATH_usage_in_tests:
1175 @if test -f $(_hv_file); then \
1176 grep -l 'VERSION mismatch' $(_hv_file) >/dev/null \
1177 || { echo "$@: skipped: no such file: $(_hv_file)" 1>&2; \
1179 grep -lE '$(_hv_regex_strong)' $(_hv_file) >/dev/null \
1180 || { echo "$@: $(_hv_file) lacks conforming use of init.sh" 1>&2; \
1182 good=$$(grep -E '$(_hv_regex_strong)' $(_hv_file)); \
1183 grep -LFx "$$good" \
1184 $$(grep -lE '$(_hv_regex_weak)' $$($(VC_LIST_EXCEPT))) \
1186 { echo "$(ME): the above files use path_prepend_ inconsistently" \
1187 1>&2; exit 1; } || :; \
1190 # #if HAVE_... will evaluate to false for any non numeric string.
1191 # That would be flagged by using -Wundef, however gnulib currently
1192 # tests many undefined macros, and so we can't enable that option.
1193 # So at least preclude common boolean strings as macro values.
1195 @prohibit='^#define.*(yes|no|true|false)$$' \
1196 in_files='$(CONFIG_INCLUDE)' \
1197 halt='Use 0 or 1 for macro values' \
1198 $(_sc_search_regexp)
1200 # Even if you use pathmax.h to guarantee that PATH_MAX is defined, it might
1201 # not be constant, or might overflow a stack. In general, use PATH_MAX as
1202 # a limit, not an array or alloca size.
1203 sc_prohibit_path_max_allocation:
1204 @prohibit='(\balloca *\([^)]*|\[[^]]*)PATH_MAX' \
1205 halt='Avoid stack allocations of size PATH_MAX' \
1206 $(_sc_search_regexp)
1208 sc_vulnerable_makefile_CVE-2009-4029:
1209 @prohibit='perm -777 -exec chmod a\+rwx|chmod 777 \$$\(distdir\)' \
1210 in_files=$$(find $(srcdir) -name Makefile.in) \
1211 halt=$$(printf '%s\n' \
1212 'the above files are vulnerable; beware of running' \
1213 ' "make dist*" rules, and upgrade to fixed automake' \
1214 ' see http://bugzilla.redhat.com/542609 for details') \
1215 $(_sc_search_regexp)
1218 (unset CDPATH; cd $(srcdir) && $(VC) diff) > vc-diffs || :
1219 if test -s vc-diffs; then \
1221 echo "Some files are locally modified:" 1>&2; \
1227 rel-files = $(DIST_ARCHIVES)
1229 gnulib_dir ?= $(srcdir)/gnulib
1230 gnulib-version = $$(cd $(gnulib_dir) && git describe)
1231 bootstrap-tools ?= autoconf,automake,gnulib
1233 # If it's not already specified, derive the GPG key ID from
1234 # the signed tag we've just applied to mark this release.
1236 $$(git cat-file tag v$(VERSION) \
1237 | gpgv --status-fd 1 --keyring /dev/null - - 2>/dev/null \
1238 | sed -n '/^\[GNUPG:\] ERRSIG /{s///;s/ .*//p;q}')
1240 translation_project_ ?= coordinator@translationproject.org
1242 # Make info-gnu the default only for a stable release.
1243 ifeq ($(RELEASE_TYPE),stable)
1244 announcement_Cc_ ?= $(translation_project_), $(PACKAGE_BUGREPORT)
1245 announcement_mail_headers_ ?= \
1246 To: info-gnu@gnu.org \
1247 Cc: $(announcement_Cc_) \
1248 Mail-Followup-To: $(PACKAGE_BUGREPORT)
1250 announcement_Cc_ ?= $(translation_project_)
1251 announcement_mail_headers_ ?= \
1252 To: $(PACKAGE_BUGREPORT) \
1253 Cc: $(announcement_Cc_)
1256 announcement: NEWS ChangeLog $(rel-files)
1257 @$(srcdir)/$(_build-aux)/announce-gen \
1258 --mail-headers='$(announcement_mail_headers_)' \
1259 --release-type=$(RELEASE_TYPE) \
1260 --package=$(PACKAGE) \
1261 --prev=$(PREV_VERSION) \
1263 --gpg-key-id=$(gpg_key_ID) \
1264 --news=$(srcdir)/NEWS \
1265 --bootstrap-tools=$(bootstrap-tools) \
1266 --gnulib-version=$(gnulib-version) \
1267 --no-print-checksums \
1268 $(addprefix --url-dir=, $(url_dir_list))
1270 ## ---------------- ##
1271 ## Updating files. ##
1272 ## ---------------- ##
1274 ftp-gnu = ftp://ftp.gnu.org/gnu
1275 www-gnu = http://www.gnu.org
1277 upload_dest_dir_ ?= $(PACKAGE)
1278 emit_upload_commands:
1279 @echo =====================================
1280 @echo =====================================
1281 @echo "$(srcdir)/$(_build-aux)/gnupload $(GNUPLOADFLAGS) \\"
1282 @echo " --to $(gnu_rel_host):$(upload_dest_dir_) \\"
1283 @echo " $(rel-files)"
1284 @echo '# send the ~/announce-$(my_distdir) e-mail'
1285 @echo =====================================
1286 @echo =====================================
1288 define emit-commit-log
1289 printf '%s\n' 'maint: post-release administrivia' '' \
1290 '* NEWS: Add header line for next release.' \
1291 '* .prev-version: Record previous version.' \
1292 '* cfg.mk (old_NEWS_hash): Auto-update.'
1295 .PHONY: no-submodule-changes
1296 no-submodule-changes:
1297 if test -d $(srcdir)/.git; then \
1298 diff=$$(cd $(srcdir) && git submodule -q foreach \
1299 git diff-index --name-only HEAD) \
1301 case $$diff in '') ;; \
1302 *) echo '$(ME): submodule files are locally modified:'; \
1303 echo "$$diff"; exit 1;; esac; \
1308 submodule-checks ?= no-submodule-changes public-submodule-commit
1310 # Ensure that each sub-module commit we're using is public.
1311 # Without this, it is too easy to tag and release code that
1312 # cannot be built from a fresh clone.
1313 .PHONY: public-submodule-commit
1314 public-submodule-commit:
1315 $(AM_V_GEN)if test -d $(srcdir)/.git; then \
1317 git submodule --quiet foreach test '$$(git rev-parse $$sha1)' \
1318 = '$$(git merge-base origin $$sha1)' \
1319 || { echo '$(ME): found non-public submodule commit' >&2; \
1324 # This rule has a high enough utility/cost ratio that it should be a
1325 # dependent of "check" by default. However, some of us do occasionally
1326 # commit a temporary change that deliberately points to a non-public
1327 # submodule commit, and want to be able to use rules like "make check".
1328 # In that case, run e.g., "make check gl_public_submodule_commit="
1329 # to disable this test.
1330 gl_public_submodule_commit ?= public-submodule-commit
1331 check: $(gl_public_submodule_commit)
1333 .PHONY: alpha beta stable
1334 ALL_RECURSIVE_TARGETS += alpha beta stable
1335 alpha beta stable: syntax-check writable-files $(submodule-checks)
1337 && { echo $(VERSION) | grep -E '^[0-9]+(\.[0-9]+)+$$' \
1338 || { echo "invalid version string: $(VERSION)" 1>&2; exit 1;};}\
1340 $(MAKE) vc-diff-check
1343 $(MAKE) dist XZ_OPT=-9ev
1344 $(MAKE) $(release-prep-hook) RELEASE_TYPE=$@
1345 $(MAKE) -s emit_upload_commands RELEASE_TYPE=$@
1347 # Override this in cfg.mk if you follow different procedures.
1348 release-prep-hook ?= release-prep
1350 gl_noteworthy_news_ = * Noteworthy changes in release ?.? (????-??-??) [?]
1351 .PHONY: release-prep
1353 case $$RELEASE_TYPE in alpha|beta|stable) ;; \
1354 *) echo "invalid RELEASE_TYPE: $$RELEASE_TYPE" 1>&2; exit 1;; esac
1355 $(MAKE) --no-print-directory -s announcement > ~/announce-$(my_distdir)
1356 if test -d $(release_archive_dir); then \
1357 ln $(rel-files) $(release_archive_dir); \
1358 chmod a-w $(rel-files); \
1360 echo $(VERSION) > $(prev_version_file)
1361 $(MAKE) update-NEWS-hash
1362 perl -pi -e '$$. == 3 and print "$(gl_noteworthy_news_)\n\n\n"' NEWS
1363 $(emit-commit-log) > .ci-msg
1364 $(VC) commit -F .ci-msg -a
1367 # Override this with e.g., -s $(srcdir)/some_other_name.texi
1368 # if the default $(PACKAGE)-derived name doesn't apply.
1373 @test -z "$(manual_title)" \
1374 && { echo define manual_title in cfg.mk 1>&2; exit 1; } || :
1375 @cd '$(srcdir)/doc'; \
1376 $(SHELL) ../$(_build-aux)/gendocs.sh $(gendocs_options_) \
1377 -o '$(abs_builddir)/doc/manual' \
1378 --email $(PACKAGE_BUGREPORT) $(PACKAGE) \
1379 "$(PACKAGE_NAME) - $(manual_title)"
1380 @echo " *** Upload the doc/manual directory to web-cvs."
1385 $(MAKE) $(AM_MAKEFLAGS) clean
1386 lcov --directory . --zerocounters
1388 COVERAGE_CCOPTS ?= "-g --coverage"
1389 COVERAGE_OUT ?= doc/coverage
1392 $(MAKE) $(AM_MAKEFLAGS) CFLAGS=$(COVERAGE_CCOPTS) CXXFLAGS=$(COVERAGE_CCOPTS)
1393 $(MAKE) $(AM_MAKEFLAGS) CFLAGS=$(COVERAGE_CCOPTS) CXXFLAGS=$(COVERAGE_CCOPTS) check
1394 mkdir -p $(COVERAGE_OUT)
1395 lcov --directory . --output-file $(COVERAGE_OUT)/$(PACKAGE).info \
1399 genhtml --output-directory $(COVERAGE_OUT) \
1400 $(COVERAGE_OUT)/$(PACKAGE).info \
1401 --highlight --frames --legend \
1402 --title "$(PACKAGE_NAME)"
1404 coverage: init-coverage build-coverage gen-coverage
1406 # Update gettext files.
1407 PACKAGE ?= $(shell basename $(PWD))
1408 PO_DOMAIN ?= $(PACKAGE)
1411 RSYNC_PROTECT ?= en@boldquot.po en@quot.po
1414 @echo "$(ME): getting translations into $(PODIR)..."
1415 rsync $(RSYNC_OPTIONS) -Lrc --delete \
1416 $(patsubst %,-f 'protect %',$(RSYNC_PROTECT)) \
1417 -f 'include *.po' -f 'exclude *' \
1418 translationproject.org::tp/latest/$(PO_DOMAIN)/ $(PODIR)
1419 @touch $(PODIR)/LINGUAS
1420 sed -i -e '/^[a-z]/d' $(PODIR)/LINGUAS
1421 { echo 'en@boldquot'; echo 'en@quot'; ls $(PODIR)/*.po; } \
1422 | sed -e 's/\.po//' -e 's,$(PODIR)/,,' | sort -u >> $(PODIR)/LINGUAS
1424 # Running indent once is not idempotent, but running it twice is.
1425 INDENT_SOURCES ?= $(C_SOURCES)
1428 indent $(INDENT_STYLE) $(INDENT_SOURCES)
1429 indent $(INDENT_STYLE) $(INDENT_SOURCES)
1431 # If you want to set UPDATE_COPYRIGHT_* environment variables,
1432 # put the assignments in this variable.
1433 update-copyright-env ?=
1435 # Run this rule once per year (usually early in January)
1436 # to update all FSF copyright year lists in your project.
1437 # If you have an additional project-specific rule,
1438 # add it in cfg.mk along with a line 'update-copyright: prereq'.
1439 # By default, exclude all variants of COPYING; you can also
1440 # add exemptions (such as ChangeLog..* for rotated change logs)
1441 # in the file .x-update-copyright.
1442 .PHONY: update-copyright
1444 grep -l -w Copyright \
1445 $$(export VC_LIST_EXCEPT_DEFAULT=COPYING && $(VC_LIST_EXCEPT)) \
1446 | $(update-copyright-env) xargs $(srcdir)/$(_build-aux)/$@
1448 # This tight_scope test is skipped with a warning if $(_gl_TS_headers) is not
1449 # overridden and $(_gl_TS_dir)/Makefile.am does not mention noinst_HEADERS.
1451 # NOTE: to override any _gl_TS_* default value, you must
1452 # define the variable(s) using "export" in cfg.mk.
1455 ALL_RECURSIVE_TARGETS += sc_tight_scope
1456 sc_tight_scope: tight-scope.mk
1458 if ! grep '^ *export _gl_TS_headers *=' $(srcdir)/cfg.mk \
1460 && ! grep -w noinst_HEADERS $(srcdir)/$(_gl_TS_dir)/Makefile.am \
1461 > /dev/null 2>&1; then \
1462 echo '$(ME): skipping $@'; \
1464 $(MAKE) -s -C $(_gl_TS_dir) \
1466 -f $(abs_top_srcdir)/cfg.mk \
1467 -f $(abs_top_builddir)/$< \
1474 tight-scope.mk: $(ME)
1476 @perl -ne '/^# TS-start/.../^# TS-end/ and print' $(srcdir)/$(ME) > $@-t
1477 @chmod a=r $@-t && mv $@-t $@
1482 # Most functions should have static scope.
1483 # Any that don't must be marked with `extern', but `main'
1484 # and `usage' are exceptions: they're always extern, but
1485 # do not need to be marked. Symbols matching `__.*' are
1486 # reserved by the compiler, so are automatically excluded below.
1487 _gl_TS_unmarked_extern_functions ?= main usage
1488 _gl_TS_function_match ?= /^(?:$(_gl_TS_extern)) +.*?(\S+) *\(/
1490 # If your project uses a macro like "XTERN", then put
1491 # the following in cfg.mk to override this default:
1492 # export _gl_TS_extern = extern|XTERN
1493 _gl_TS_extern ?= extern
1495 # The second nm|grep checks for file-scope variables with `extern' scope.
1496 # Without gnulib's progname module, you might put program_name here.
1497 # Symbols matching `__.*' are reserved by the compiler,
1498 # so are automatically excluded below.
1499 _gl_TS_unmarked_extern_vars ?=
1501 # NOTE: the _match variables are perl expressions -- not mere regular
1502 # expressions -- so that you can extend them to match other patterns
1503 # and easily extract matched variable names.
1504 # For example, if your project declares some global variables via
1505 # a macro like this: GLOBAL(type, var_name, initializer), then you
1506 # can override this definition to automatically extract those names:
1507 # export _gl_TS_var_match = \
1508 # /^(?:$(_gl_TS_extern)) .*?\**(\w+)(\[.*?\])?;/ || /\bGLOBAL\(.*?,\s*(.*?),/
1509 _gl_TS_var_match ?= /^(?:$(_gl_TS_extern)) .*?(\w+)(\[.*?\])?;/
1511 # The names of object files in (or relative to) $(_gl_TS_dir).
1512 _gl_TS_obj_files ?= *.$(OBJEXT)
1514 # Files in which to search for the one-line style extern declarations.
1515 # $(_gl_TS_dir)-relative.
1516 _gl_TS_headers ?= $(noinst_HEADERS)
1518 .PHONY: _gl_tight_scope
1519 _gl_tight_scope: $(bin_PROGRAMS)
1520 t=exceptions-$$$$; \
1521 trap 's=$$?; rm -f $$t; exit $$s' 0; \
1522 for sig in 1 2 3 13 15; do \
1523 eval "trap 'v=`expr $$sig + 128`; (exit $$v); exit $$v' $$sig"; \
1525 src=`for f in $(SOURCES); do \
1526 test -f $$f && d= || d=$(srcdir)/; echo $$d$$f; done`; \
1527 hdr=`for f in $(_gl_TS_headers); do \
1528 test -f $$f && d= || d=$(srcdir)/; echo $$d$$f; done`; \
1529 ( printf '^%s$$\n' '__.*' $(_gl_TS_unmarked_extern_functions); \
1530 grep -h -A1 '^extern .*[^;]$$' $$src \
1531 | grep -vE '^(extern |--)' | sed 's/ .*//'; \
1533 '$(_gl_TS_function_match) and print "^$$1\$$"' $$hdr; \
1534 ) | sort -u > $$t; \
1535 nm -e $(_gl_TS_obj_files) | sed -n 's/.* T //p'|grep -Ev -f $$t \
1536 && { echo the above functions should have static scope >&2; \
1538 ( printf '^%s$$\n' '__.*' $(_gl_TS_unmarked_extern_vars); \
1539 perl -lne '$(_gl_TS_var_match) and print "^$$1\$$"' $$hdr *.h \
1540 ) | sort -u > $$t; \
1541 nm -e $(_gl_TS_obj_files) | sed -n 's/.* [BCDGRS] //p' \
1542 | sort -u | grep -Ev -f $$t \
1543 && { echo the above variables should have static scope >&2; \