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 $$?),0)
135 local-checks-available += $(syntax-check-rules)
137 local-checks-available += no-vc-detected
139 @echo "No version control files detected; skipping syntax check"
141 .PHONY: $(local-checks-available)
143 # Arrange to print the name of each syntax-checking rule just before running it.
144 $(syntax-check-rules): %: %.m
145 sc_m_rules_ = $(patsubst %, %.m, $(syntax-check-rules))
146 .PHONY: $(sc_m_rules_)
148 @echo $(patsubst sc_%.m, %, $@)
149 @date +%s.%N > .sc-start-$(basename $@)
151 # Compute and print the elapsed time for each syntax-check rule.
152 sc_z_rules_ = $(patsubst %, %.z, $(syntax-check-rules))
153 .PHONY: $(sc_z_rules_)
154 $(sc_z_rules_): %.z: %
155 @end=$$(date +%s.%N); \
156 start=$$(cat .sc-start-$*); \
157 rm -f .sc-start-$*; \
158 awk -v s=$$start -v e=$$end \
159 'END {printf "%.2f $(patsubst sc_%,%,$*)\n", e - s}' < /dev/null
161 # The patsubst here is to replace each sc_% rule with its sc_%.z wrapper
162 # that computes and prints elapsed time.
164 $(patsubst sc_%, sc_%.z, \
165 $(filter-out $(local-checks-to-skip), $(local-checks-available)))
167 syntax-check: $(local-check)
171 # This macro searches for a given construct in the selected files and
172 # then takes some action.
174 # Parameters (shell variables):
178 # Regular expression (ERE) denoting either a forbidden construct
179 # or a required construct. Those arguments are exclusive.
181 # in_vc_files | in_files
183 # grep-E-style regexp denoting the files to check. If no files
184 # are specified the default are all the files that are under
187 # containing | non_containing
189 # Select the files (non) containing strings matching this regexp.
190 # If both arguments are specified then CONTAINING takes
195 # Extra options for grep.
203 # Message to display before to halting execution.
205 # Finally, you may exempt files based on an ERE matching file names.
206 # For example, to exempt from the sc_space_tab check all files with the
207 # .diff suffix, set this Make variable:
209 # exclude_file_name_regexp--sc_space_tab = \.diff$
211 # Note that while this functionality is mostly inherited via VC_LIST_EXCEPT,
212 # when filtering by name via in_files, we explicitly filter out matching
213 # names here as well.
215 # By default, _sc_search_regexp does not ignore case.
217 _ignore_case = $$(test -n "$$ignore_case" && printf %s -i || :)
219 define _sc_say_and_exit
220 dummy=; : so we do not need a semicolon before each use; \
221 { printf '%s\n' "$(ME): $$msg" 1>&2; exit 1; };
224 # _sc_search_regexp used to be named _prohibit_regexp. However,
225 # upgrading to the new definition and leaving the old name undefined
226 # would usually convert each custom rule using $(_prohibit_regexp)
227 # (usually defined in cfg.mk) into a no-op. This definition ensures
228 # that people know right away if they're still using the old name.
229 # FIXME: remove in 2012.
231 $(error '*** you need to s/_prohibit_regexp/_sc_search_regexp/, and adapt')
233 define _sc_search_regexp
234 dummy=; : so we do not need a semicolon before each use; \
237 test -n "$$prohibit" && test -n "$$require" \
238 && { msg='Cannot specify both prohibit and require' \
239 $(_sc_say_and_exit) } || :; \
240 test -z "$$prohibit" && test -z "$$require" \
241 && { msg='Should specify either prohibit or require' \
242 $(_sc_say_and_exit) } || :; \
243 test -n "$$in_vc_files" && test -n "$$in_files" \
244 && { msg='Cannot specify both in_vc_files and in_files' \
245 $(_sc_say_and_exit) } || :; \
246 test "x$$halt" != x \
247 || { msg='halt not defined' $(_sc_say_and_exit) }; \
249 : Filter by file name; \
250 if test -n "$$in_files"; then \
251 files=$$(find $(srcdir) | grep -E "$$in_files" \
252 | grep -Ev '$(exclude_file_name_regexp--$@)'); \
254 files=$$($(VC_LIST_EXCEPT)); \
255 if test -n "$$in_vc_files"; then \
256 files=$$(echo "$$files" | grep -E "$$in_vc_files"); \
260 : Filter by content; \
261 test -n "$$files" && test -n "$$containing" \
262 && { files=$$(grep -l "$$containing" $$files); } || :; \
263 test -n "$$files" && test -n "$$non_containing" \
264 && { files=$$(grep -vl "$$non_containing" $$files); } || :; \
266 : Check for the construct; \
267 if test -n "$$files"; then \
268 if test -n "$$prohibit"; then \
269 grep $$with_grep_options $(_ignore_case) -nE "$$prohibit" $$files \
270 && { msg="$$halt" $(_sc_say_and_exit) } || :; \
272 grep $$with_grep_options $(_ignore_case) -LE "$$require" $$files \
274 && { msg="$$halt" $(_sc_say_and_exit) } || :; \
280 sc_avoid_if_before_free:
281 @$(srcdir)/$(_build-aux)/useless-if-before-free \
282 $(useless_free_options) \
283 $$($(VC_LIST_EXCEPT) | grep -v useless-if-before-free) && \
284 { echo '$(ME): found useless "if" before "free" above' 1>&2; \
287 sc_cast_of_argument_to_free:
288 @prohibit='\<free *\( *\(' halt='don'\''t cast free argument' \
291 sc_cast_of_x_alloc_return_value:
292 @prohibit='\*\) *x(m|c|re)alloc\>' \
293 halt='don'\''t cast x*alloc return value' \
296 sc_cast_of_alloca_return_value:
297 @prohibit='\*\) *alloca\>' \
298 halt='don'\''t cast alloca return value' \
303 halt='found SPACE-TAB sequence; remove the SPACE' \
306 # Don't use *scanf or the old ato* functions in `real' code.
307 # They provide no error checking mechanism.
308 # Instead, use strto* functions.
309 sc_prohibit_atoi_atof:
310 @prohibit='\<([fs]?scanf|ato([filq]|ll)) *\(' \
311 halt='do not use *scan''f, ato''f, ato''i, ato''l, ato''ll or ato''q' \
314 # Use STREQ rather than comparing strcmp == 0, or != 0.
316 @grep -nE '! *str''cmp *\(|\<str''cmp *\(.+\) *[!=]=' \
317 $$($(VC_LIST_EXCEPT)) \
318 | grep -vE ':# *define STRN?EQ\(' && \
319 { echo '$(ME): replace str''cmp calls above with STREQ/STRNEQ' \
322 # Pass EXIT_*, not number, to usage, exit, and error (when exiting)
323 # Convert all uses automatically, via these two commands:
324 # git grep -l '\<exit *(1)' \
325 # | grep -vEf .x-sc_prohibit_magic_number_exit \
326 # | xargs --no-run-if-empty \
327 # perl -pi -e 's/(^|[^.])\b(exit ?)\(1\)/$1$2(EXIT_FAILURE)/'
328 # git grep -l '\<exit *(0)' \
329 # | grep -vEf .x-sc_prohibit_magic_number_exit \
330 # | xargs --no-run-if-empty \
331 # perl -pi -e 's/(^|[^.])\b(exit ?)\(0\)/$1$2(EXIT_SUCCESS)/'
332 sc_prohibit_magic_number_exit:
333 @prohibit='(^|[^.])\<(usage|exit) ?\([0-9]|\<error ?\([1-9][0-9]*,' \
334 halt='use EXIT_* values rather than magic number' \
337 # Using EXIT_SUCCESS as the first argument to error is misleading,
338 # since when that parameter is 0, error does not exit. Use `0' instead.
339 sc_error_exit_success:
340 @prohibit='error *\(EXIT_SUCCESS,' \
341 in_vc_files='\.[chly]$$' \
342 halt='found error (EXIT_SUCCESS' \
345 # `FATAL:' should be fully upper-cased in error messages
346 # `WARNING:' should be fully upper-cased, or fully lower-cased
347 sc_error_message_warn_fatal:
348 @grep -nEA2 '[^rp]error *\(' $$($(VC_LIST_EXCEPT)) \
349 | grep -E '"Warning|"Fatal|"fatal' && \
350 { echo '$(ME): use FATAL, WARNING or warning' 1>&2; \
353 # Error messages should not start with a capital letter
354 sc_error_message_uppercase:
355 @grep -nEA2 '[^rp]error *\(' $$($(VC_LIST_EXCEPT)) \
357 | grep -vE '"FATAL|"WARNING|"Java|"C#|PRIuMAX' && \
358 { echo '$(ME): found capitalized error message' 1>&2; \
361 # Error messages should not end with a period
362 sc_error_message_period:
363 @grep -nEA2 '[^rp]error *\(' $$($(VC_LIST_EXCEPT)) \
364 | grep -E '[^."]\."' && \
365 { echo '$(ME): found error message ending in period' 1>&2; \
369 @prohibit=file''system \
371 halt='found use of "file''system"; spell it "file system"' \
374 # Don't use cpp tests of this symbol. All code assumes config.h is included.
375 sc_prohibit_have_config_h:
376 @prohibit='^# *if.*HAVE''_CONFIG_H' \
377 halt='found use of HAVE''_CONFIG_H; remove' \
380 # Nearly all .c files must include <config.h>. However, we also permit this
381 # via inclusion of a package-specific header, if cfg.mk specified one.
382 # config_h_header must be suitable for grep -E.
383 config_h_header ?= <config\.h>
385 @require='^# *include $(config_h_header)' \
386 in_vc_files='\.c$$' \
387 halt='the above files do not include <config.h>' \
390 # You must include <config.h> before including any other header file.
391 # This can possibly be via a package-specific header, if given by cfg.mk.
392 sc_require_config_h_first:
393 @if $(VC_LIST_EXCEPT) | grep -l '\.c$$' > /dev/null; then \
395 for i in $$($(VC_LIST_EXCEPT) | grep '\.c$$'); do \
396 grep '^# *include\>' $$i | sed 1q \
397 | grep -E '^# *include $(config_h_header)' > /dev/null \
398 || { echo $$i; fail=1; }; \
401 { echo '$(ME): the above files include some other header' \
402 'before <config.h>' 1>&2; exit 1; } || :; \
406 sc_prohibit_HAVE_MBRTOWC:
407 @prohibit='\bHAVE_MBRTOWC\b' \
408 halt="do not use $$prohibit; it is always defined" \
411 # To use this "command" macro, you must first define two shell variables:
412 # h: the header name, with no enclosing <> or ""
413 # re: a regular expression that matches IFF something provided by $h is used.
414 define _sc_header_without_use
415 dummy=; : so we do not need a semicolon before each use; \
416 h_esc=`echo '[<"]'"$$h"'[">]'|sed 's/\./\\\\./g'`; \
417 if $(VC_LIST_EXCEPT) | grep -l '\.c$$' > /dev/null; then \
418 files=$$(grep -l '^# *include '"$$h_esc" \
419 $$($(VC_LIST_EXCEPT) | grep '\.c$$')) && \
420 grep -LE "$$re" $$files | grep . && \
421 { echo "$(ME): the above files include $$h but don't use it" \
422 1>&2; exit 1; } || :; \
427 # Prohibit the inclusion of assert.h without an actual use of assert.
428 sc_prohibit_assert_without_use:
429 @h='assert.h' re='\<assert *\(' $(_sc_header_without_use)
431 # Prohibit the inclusion of close-stream.h without an actual use.
432 sc_prohibit_close_stream_without_use:
433 @h='close-stream.h' re='\<close_stream *\(' $(_sc_header_without_use)
435 # Prohibit the inclusion of getopt.h without an actual use.
436 sc_prohibit_getopt_without_use:
437 @h='getopt.h' re='\<getopt(_long)? *\(' $(_sc_header_without_use)
439 # Don't include quotearg.h unless you use one of its functions.
440 sc_prohibit_quotearg_without_use:
441 @h='quotearg.h' re='\<quotearg(_[^ ]+)? *\(' $(_sc_header_without_use)
443 # Don't include quote.h unless you use one of its functions.
444 sc_prohibit_quote_without_use:
445 @h='quote.h' re='\<quote(_n)? *\(' $(_sc_header_without_use)
447 # Don't include this header unless you use one of its functions.
448 sc_prohibit_long_options_without_use:
449 @h='long-options.h' re='\<parse_long_options *\(' \
450 $(_sc_header_without_use)
452 # Don't include this header unless you use one of its functions.
453 sc_prohibit_inttostr_without_use:
454 @h='inttostr.h' re='\<(off|[iu]max|uint)tostr *\(' \
455 $(_sc_header_without_use)
457 # Don't include this header unless you use one of its functions.
458 sc_prohibit_ignore_value_without_use:
459 @h='ignore-value.h' re='\<ignore_(value|ptr) *\(' \
460 $(_sc_header_without_use)
462 # Don't include this header unless you use one of its functions.
463 sc_prohibit_error_without_use:
465 re='\<error(_at_line|_print_progname|_one_per_line|_message_count)? *\('\
466 $(_sc_header_without_use)
468 # Don't include xalloc.h unless you use one of its functions.
469 # Consider these symbols:
470 # perl -lne '/^# *define (\w+)\(/ and print $1' lib/xalloc.h|grep -v '^__';
471 # perl -lne '/^(?:extern )?(?:void|char) \*?(\w+) *\(/ and print $1' lib/xalloc.h
472 # Divide into two sets on case, and filter each through this:
473 # | sort | perl -MRegexp::Assemble -le \
474 # 'print Regexp::Assemble->new(file => "/dev/stdin")->as_string'|sed 's/\?://g'
475 # Note this was produced by the above:
477 #x(((2n?)?re|c(har)?|n(re|m)|z)alloc|alloc_(oversized|die)|m(alloc|emdup)|strdup)
478 # But we can do better, in at least two ways:
479 # 1) take advantage of two "dup"-suffixed strings:
480 # x(((2n?)?re|c(har)?|n(re|m)|[mz])alloc|alloc_(oversized|die)|(mem|str)dup)
481 # 2) notice that "c(har)?|[mz]" is equivalent to the shorter and more readable
483 # x(((2n?)?re|char|n(re|m)|[cmz])alloc|alloc_(oversized|die)|(mem|str)dup)
484 _xa1 = x(((2n?)?re|char|n(re|m)|[cmz])alloc|alloc_(oversized|die)|(mem|str)dup)
485 _xa2 = X([CZ]|N?M)ALLOC
486 sc_prohibit_xalloc_without_use:
488 re='\<($(_xa1)|$(_xa2)) *\('\
489 $(_sc_header_without_use)
491 # Extract function names:
492 # perl -lne '/^(?:extern )?(?:void|char) \*?(\w+) *\(/ and print $1' lib/hash.h
494 clear|delete|free|get_(first|next)|insert|lookup|print_statistics|reset_tuning
495 _hash_fn = \<($(_hash_re)) *\(
496 _hash_struct = (struct )?\<[Hh]ash_(table|tuning)\>
497 sc_prohibit_hash_without_use:
499 re='$(_hash_fn)|$(_hash_struct)'\
500 $(_sc_header_without_use)
502 sc_prohibit_cloexec_without_use:
503 @h='cloexec.h' re='\<(set_cloexec_flag|dup_cloexec) *\(' \
504 $(_sc_header_without_use)
506 sc_prohibit_posixver_without_use:
507 @h='posixver.h' re='\<posix2_version *\(' $(_sc_header_without_use)
509 sc_prohibit_same_without_use:
510 @h='same.h' re='\<same_name *\(' $(_sc_header_without_use)
512 sc_prohibit_hash_pjw_without_use:
514 re='\<hash_pjw *\(' \
515 $(_sc_header_without_use)
517 sc_prohibit_safe_read_without_use:
518 @h='safe-read.h' re='(\<SAFE_READ_ERROR\>|\<safe_read *\()' \
519 $(_sc_header_without_use)
521 sc_prohibit_argmatch_without_use:
523 re='(\<(ARRAY_CARDINALITY|X?ARGMATCH(|_TO_ARGUMENT|_VERIFY))\>|\<(invalid_arg|argmatch(_exit_fn|_(in)?valid)?) *\()' \
524 $(_sc_header_without_use)
526 sc_prohibit_canonicalize_without_use:
527 @h='canonicalize.h' \
528 re='CAN_(EXISTING|ALL_BUT_LAST|MISSING)|canonicalize_(mode_t|filename_mode)' \
529 $(_sc_header_without_use)
531 sc_prohibit_root_dev_ino_without_use:
532 @h='root-dev-ino.h' \
533 re='(\<ROOT_DEV_INO_(CHECK|WARN)\>|\<get_root_dev_ino *\()' \
534 $(_sc_header_without_use)
536 sc_prohibit_openat_without_use:
538 re='\<(openat_(permissive|needs_fchdir|(save|restore)_fail)|l?(stat|ch(own|mod))at|(euid)?accessat)\>' \
539 $(_sc_header_without_use)
541 # Prohibit the inclusion of c-ctype.h without an actual use.
542 ctype_re = isalnum|isalpha|isascii|isblank|iscntrl|isdigit|isgraph|islower\
543 |isprint|ispunct|isspace|isupper|isxdigit|tolower|toupper
544 sc_prohibit_c_ctype_without_use:
545 @h='c-ctype.h' re='\<c_($(ctype_re)) *\(' \
546 $(_sc_header_without_use)
549 _sp = $(_empty) $(_empty)
550 # The following list was generated by running:
551 # man signal.h|col -b|perl -ne '/bsd_signal.*;/.../sigwaitinfo.*;/ and print' \
552 # | perl -lne '/^\s+(?:int|void).*?(\w+).*/ and print $1' | fmt
554 bsd_signal kill killpg pthread_kill pthread_sigmask raise sigaction \
555 sigaddset sigaltstack sigdelset sigemptyset sigfillset sighold sigignore \
556 siginterrupt sigismember signal sigpause sigpending sigprocmask sigqueue \
557 sigrelse sigset sigsuspend sigtimedwait sigwait sigwaitinfo
558 _sig_function_re = $(subst $(_sp),|,$(strip $(_sig_functions)))
559 # The following were extracted from "man signal.h" manually.
560 _sig_types_and_consts = \
561 MINSIGSTKSZ SA_NOCLDSTOP SA_NOCLDWAIT SA_NODEFER SA_ONSTACK \
562 SA_RESETHAND SA_RESTART SA_SIGINFO SIGEV_NONE SIGEV_SIGNAL \
563 SIGEV_THREAD SIGSTKSZ SIG_BLOCK SIG_SETMASK SIG_UNBLOCK SS_DISABLE \
564 SS_ONSTACK mcontext_t pid_t sig_atomic_t sigevent siginfo_t sigset_t \
565 sigstack sigval stack_t ucontext_t
566 # generated via this:
567 # perl -lne '/^#ifdef (SIG\w+)/ and print $1' lib/sig2str.c|sort -u|fmt -70
569 SIGABRT SIGALRM SIGALRM1 SIGBUS SIGCANCEL SIGCHLD SIGCLD SIGCONT \
570 SIGDANGER SIGDIL SIGEMT SIGFPE SIGFREEZE SIGGRANT SIGHUP SIGILL \
571 SIGINFO SIGINT SIGIO SIGIOT SIGKAP SIGKILL SIGKILLTHR SIGLOST SIGLWP \
572 SIGMIGRATE SIGMSG SIGPHONE SIGPIPE SIGPOLL SIGPRE SIGPROF SIGPWR \
573 SIGQUIT SIGRETRACT SIGSAK SIGSEGV SIGSOUND SIGSTKFLT SIGSTOP SIGSYS \
574 SIGTERM SIGTHAW SIGTRAP SIGTSTP SIGTTIN SIGTTOU SIGURG SIGUSR1 \
575 SIGUSR2 SIGVIRT SIGVTALRM SIGWAITING SIGWINCH SIGWIND SIGWINDOW \
577 _sig_syms_re = $(subst $(_sp),|,$(strip $(_sig_names) $(_sig_types_and_consts)))
579 # Prohibit the inclusion of signal.h without an actual use.
580 sc_prohibit_signal_without_use:
582 re='\<($(_sig_function_re)) *\(|\<($(_sig_syms_re))\>' \
583 $(_sc_header_without_use)
585 # Don't include stdio--.h unless you use one of its functions.
586 sc_prohibit_stdio--_without_use:
587 @h='stdio--.h' re='\<((f(re)?|p)open|tmpfile) *\(' \
588 $(_sc_header_without_use)
590 # Don't include stdio-safer.h unless you use one of its functions.
591 sc_prohibit_stdio-safer_without_use:
592 @h='stdio-safer.h' re='\<((f(re)?|p)open|tmpfile)_safer *\(' \
593 $(_sc_header_without_use)
595 # Prohibit the inclusion of strings.h without a sensible use.
596 # Using the likes of bcmp, bcopy, bzero, index or rindex is not sensible.
597 sc_prohibit_strings_without_use:
599 re='\<(strn?casecmp|ffs(ll)?)\>' \
600 $(_sc_header_without_use)
602 # Get the list of symbol names with this:
603 # perl -lne '/^# *define ([A-Z]\w+)\(/ and print $1' lib/intprops.h|fmt
605 TYPE_IS_INTEGER TYPE_TWOS_COMPLEMENT TYPE_ONES_COMPLEMENT \
606 TYPE_SIGNED_MAGNITUDE TYPE_SIGNED TYPE_MINIMUM TYPE_MAXIMUM \
607 INT_BITS_STRLEN_BOUND INT_STRLEN_BOUND INT_BUFSIZE_BOUND \
608 INT_ADD_RANGE_OVERFLOW INT_SUBTRACT_RANGE_OVERFLOW \
609 INT_NEGATE_RANGE_OVERFLOW INT_MULTIPLY_RANGE_OVERFLOW \
610 INT_DIVIDE_RANGE_OVERFLOW INT_REMAINDER_RANGE_OVERFLOW \
611 INT_LEFT_SHIFT_RANGE_OVERFLOW INT_ADD_OVERFLOW INT_SUBTRACT_OVERFLOW \
612 INT_NEGATE_OVERFLOW INT_MULTIPLY_OVERFLOW INT_DIVIDE_OVERFLOW \
613 INT_REMAINDER_OVERFLOW INT_LEFT_SHIFT_OVERFLOW
614 _intprops_syms_re = $(subst $(_sp),|,$(strip $(_intprops_names)))
615 # Prohibit the inclusion of intprops.h without an actual use.
616 sc_prohibit_intprops_without_use:
618 re='\<($(_intprops_syms_re)) *\(' \
619 $(_sc_header_without_use)
621 _stddef_syms_re = NULL|offsetof|ptrdiff_t|size_t|wchar_t
622 # Prohibit the inclusion of stddef.h without an actual use.
623 sc_prohibit_stddef_without_use:
625 re='\<($(_stddef_syms_re))\>' \
626 $(_sc_header_without_use)
628 # Prohibit the inclusion of verify.h without an actual use.
629 sc_prohibit_verify_without_use:
631 re='\<(verify(true|expr)?|static_assert) *\(' \
632 $(_sc_header_without_use)
634 # Don't include xfreopen.h unless you use one of its functions.
635 sc_prohibit_xfreopen_without_use:
636 @h='xfreopen.h' re='\<xfreopen *\(' $(_sc_header_without_use)
639 @prohibit='\<(HAVE''_FCNTL_H|O''_NDELAY)\>' \
640 halt='do not use HAVE''_FCNTL_H or O'_NDELAY \
643 # FIXME: warn about definitions of EXIT_FAILURE, EXIT_SUCCESS, STREQ
645 # Each nonempty ChangeLog line must start with a year number, or a TAB.
647 @prohibit='^[^12 ]' \
648 in_vc_files='^ChangeLog$$' \
649 halt='found unexpected prefix in a ChangeLog' \
652 # Ensure that each .c file containing a "main" function also
653 # calls set_program_name.
655 @require='set_program_name *\(m?argv\[0\]\);' \
656 in_vc_files='\.c$$' \
657 containing='\<main *(' \
658 halt='the above files do not call set_program_name' \
661 # Ensure that each .c file containing a "main" function also
662 # calls bindtextdomain.
664 @require='bindtextdomain *\(' \
665 in_vc_files='\.c$$' \
666 containing='\<main *(' \
667 halt='the above files do not call bindtextdomain' \
670 # Require that the final line of each test-lib.sh-using test be this one:
672 # Note: this test requires GNU grep's --label= option.
673 Exit_witness_file ?= tests/test-lib.sh
674 Exit_base := $(notdir $(Exit_witness_file))
675 sc_require_test_exit_idiom:
676 @if test -f $(srcdir)/$(Exit_witness_file); then \
678 for i in $$(grep -l -F 'srcdir/$(Exit_base)' \
679 $$($(VC_LIST) tests)); do \
680 tail -n1 $$i | grep '^Exit .' > /dev/null \
681 && : || { die=1; echo $$i; } \
684 { echo 1>&2 '$(ME): the final line in each of the above is not:'; \
685 echo 1>&2 'Exit something'; \
691 halt='found trailing blank(s)' \
694 # Match lines like the following, but where there is only one space
695 # between the options and the description:
696 # -D, --all-repeated[=delimit-method] print all duplicate lines\n
697 longopt_re = --[a-z][0-9A-Za-z-]*(\[?=[0-9A-Za-z-]*\]?)?
698 sc_two_space_separator_in_usage:
699 @prohibit='^ *(-[A-Za-z],)? $(longopt_re) [^ ].*\\$$' \
700 halt='help2man requires at least two spaces between an option and its description'\
703 # A regexp matching function names like "error" that may be used
704 # to emit translatable messages.
705 _gl_translatable_diag_func_re ?= error
707 # Look for diagnostics that aren't marked for translation.
708 # This won't find any for which error's format string is on a separate line.
709 sc_unmarked_diagnostics:
711 '\<$(_gl_translatable_diag_func_re) *\([^"]*"[^"]*[a-z]{3}' \
712 $$($(VC_LIST_EXCEPT)) \
713 | grep -Ev '(_|ngettext ?)\(' && \
714 { echo '$(ME): found unmarked diagnostic(s)' 1>&2; \
717 # Avoid useless parentheses like those in this example:
718 # #if defined (SYMBOL) || defined (SYM2)
719 sc_useless_cpp_parens:
720 @prohibit='^# *if .*defined *\(' \
721 halt='found useless parentheses in cpp directive' \
724 # List headers for which HAVE_HEADER_H is always true, assuming you are
725 # using the appropriate gnulib module. CAUTION: for each "unnecessary"
726 # #if HAVE_HEADER_H that you remove, be sure that your project explicitly
727 # requires the gnulib module that guarantees the usability of that header.
728 gl_assured_headers_ = \
729 cd $(gnulib_dir)/lib && echo *.in.h|sed 's/\.in\.h//g'
731 # Convert the list of names to upper case, and replace each space with "|".
732 az_ = abcdefghijklmnopqrstuvwxyz
733 AZ_ = ABCDEFGHIJKLMNOPQRSTUVWXYZ
734 gl_header_upper_case_or_ = \
735 $$($(gl_assured_headers_) \
736 | tr $(az_)/.- $(AZ_)___ \
739 sc_prohibit_always_true_header_tests:
740 @or=$(gl_header_upper_case_or_); \
741 re="HAVE_($$or)_H"; \
742 prohibit='\<'"$$re"'\>' \
743 halt=$$(printf '%s\n' \
744 'do not test the above HAVE_<header>_H symbol(s);' \
745 ' with the corresponding gnulib module, they are always true') \
748 # ==================================================================
749 gl_other_headers_ ?= \
754 # Perl -lne code to extract "significant" cpp-defined symbols from a
755 # gnulib header file, eliminating a few common false-positives.
756 # The exempted names below are defined only conditionally in gnulib,
757 # and hence sometimes must/may be defined in application code.
758 gl_extract_significant_defines_ = \
759 /^\# *define ([^_ (][^ (]*)(\s*\(|\s+\w+)/\
760 && $$2 !~ /(?:rpl_|_used_without_)/\
761 && $$1 !~ /^(?:NSIG|ENODATA)$$/\
762 && $$1 !~ /^(?:SA_RESETHAND|SA_RESTART)$$/\
765 # Create a list of regular expressions matching the names
766 # of macros that are guaranteed to be defined by parts of gnulib.
768 gen_h=$(gl_generated_headers_); \
769 (cd $(gnulib_dir)/lib; \
770 for f in *.in.h $(gl_other_headers_); do \
772 && perl -lne '$(gl_extract_significant_defines_)' $$f; \
775 | sed 's/^/^ *# *(define|undef) */;s/$$/\\>/'
778 # Don't define macros that we already get from gnulib header files.
779 sc_prohibit_always-defined_macros:
780 @if test -d $(gnulib_dir); then \
781 case $$(echo all: | grep -l -f - Makefile) in Makefile);; *) \
782 echo '$(ME): skipping $@: you lack GNU grep' 1>&2; exit 0;; \
784 $(def_sym_regex) | grep -E -f - $$($(VC_LIST_EXCEPT)) \
785 && { echo '$(ME): define the above via some gnulib .h file' \
786 1>&2; exit 1; } || :; \
788 # ==================================================================
790 # Prohibit checked in backup files.
791 sc_prohibit_backup_files:
792 @$(VC_LIST) | grep '~$$' && \
793 { echo '$(ME): found version controlled backup file' 1>&2; \
796 # Require the latest GPL.
798 @prohibit='either ''version [^3]' \
799 halt='GPL vN, N!=3' \
802 # Require the latest GFDL. Two regexp, since some .texi files end up
803 # line wrapping between 'Free Documentation License,' and 'Version'.
804 _GFDL_regexp = (Free ''Documentation.*Version 1\.[^3]|Version 1\.[^3] or any)
806 @prohibit='$(_GFDL_regexp)' \
807 halt='GFDL vN, N!=3' \
810 # Don't use Texinfo's @acronym{}.
811 # http://lists.gnu.org/archive/html/bug-gnulib/2010-03/msg00321.html
812 texinfo_suffix_re_ ?= \.(txi|texi(nfo)?)$$
814 @prohibit='@acronym\{' \
815 in_vc_files='$(texinfo_suffix_re_)' \
816 halt='found use of Texinfo @acronym{}' \
820 Author|Date|Header|Id|Name|Locker|Log|RCSfile|Revision|Source|State
822 sc_prohibit_cvs_keyword:
823 @prohibit='\$$($(cvs_keywords))\$$' \
824 halt='do not use CVS keyword expansion' \
827 # This Perl code is slightly obfuscated. Not only is each "$" doubled
828 # because it's in a Makefile, but the $$c's are comments; we cannot
829 # use "#" due to the way the script ends up concatenated onto one line.
830 # It would be much more concise, and would produce better output (including
831 # counts) if written as:
832 # perl -ln -0777 -e '/\n(\n+)$/ and print "$ARGV: ".length $1' ...
833 # but that would be far less efficient, reading the entire contents
834 # of each file, rather than just the last two bytes of each.
835 # In addition, while the code below detects both blank lines and a missing
836 # newline at EOF, the above detects only the former.
838 # This is a perl script that is expected to be the single-quoted argument
839 # to a command-line "-le". The remaining arguments are file names.
840 # Print the name of each file that ends in exactly one newline byte.
841 # I.e., warn if there are blank lines (2 or more newlines), or if the
842 # last byte is not a newline. However, currently we don't complain
843 # about any file that contains exactly one byte.
844 # Exit nonzero if at least one such file is found, otherwise, exit 0.
845 # Warn about, but otherwise ignore open failure. Ignore seek/read failure.
847 # Use this if you want to remove trailing empty lines from selected files:
848 # perl -pi -0777 -e 's/\n\n+$/\n/' files...
850 require_exactly_one_NL_at_EOF_ = \
851 foreach my $$f (@ARGV) \
853 open F, "<", $$f or (warn "failed to open $$f: $$!\n"), next; \
854 my $$p = sysseek (F, -2, 2); \
855 my $$c = "seek failure probably means file has < 2 bytes; ignore"; \
856 my $$last_two_bytes; \
857 defined $$p and $$p = sysread F, $$last_two_bytes, 2; \
859 $$c = "ignore read failure"; \
860 $$p && ($$last_two_bytes eq "\n\n" \
861 || substr ($$last_two_bytes,1) ne "\n") \
862 and (print $$f), $$fail=1; \
864 END { exit defined $$fail }
865 sc_prohibit_empty_lines_at_EOF:
866 @perl -le '$(require_exactly_one_NL_at_EOF_)' $$($(VC_LIST_EXCEPT)) \
867 || { echo '$(ME): empty line(s) or no newline at EOF' \
870 # Make sure we don't use st_blocks. Use ST_NBLOCKS instead.
871 # This is a bit of a kludge, since it prevents use of the string
872 # even in comments, but for now it does the job with no false positives.
873 sc_prohibit_stat_st_blocks:
874 @prohibit='[.>]st_blocks' \
875 halt='do not use st_blocks; use ST_NBLOCKS' \
878 # Make sure we don't define any S_IS* macros in src/*.c files.
879 # They're already defined via gnulib's sys/stat.h replacement.
880 sc_prohibit_S_IS_definition:
881 @prohibit='^ *# *define *S_IS' \
882 halt='do not define S_IS* macros; include <sys/stat.h>' \
885 # Perl block to convert a match to FILE_NAME:LINENO:TEST,
886 # that is shared by two definitions below.
887 perl_filename_lineno_text_ = \
889 -e ' $$n = ($$` =~ tr/\n/\n/ + 1);' \
890 -e ' ($$v = $$&) =~ s/\n/\\n/g;' \
891 -e ' print "$$ARGV:$$n:$$v\n";' \
894 prohibit_doubled_word_RE_ ?= \
895 /\b(then?|[iao]n|i[fst]|but|f?or|at|and|[dt]o)\s+\1\b/gims
896 prohibit_doubled_word_ = \
897 -e 'while ($(prohibit_doubled_word_RE_))' \
898 $(perl_filename_lineno_text_)
900 # Define this to a regular expression that matches
901 # any filename:dd:match lines you want to ignore.
902 # The default is to ignore no matches.
903 ignore_doubled_word_match_RE_ ?= ^$$
905 sc_prohibit_doubled_word:
906 @perl -n -0777 $(prohibit_doubled_word_) $$($(VC_LIST_EXCEPT)) \
907 | grep -vE '$(ignore_doubled_word_match_RE_)' \
908 | grep . && { echo '$(ME): doubled words' 1>&2; exit 1; } || :
910 # A regular expression matching undesirable combinations of words like
911 # "can not"; this matches them even when the two words appear on different
912 # lines, but not when there is an intervening delimiter like "#" or "*".
913 prohibit_undesirable_word_seq_RE_ ?= \
915 prohibit_undesirable_word_seq_ = \
916 -e 'while ($(prohibit_undesirable_word_seq_RE_))' \
917 $(perl_filename_lineno_text_)
918 # Define this to a regular expression that matches
919 # any filename:dd:match lines you want to ignore.
920 # The default is to ignore no matches.
921 ignore_undesirable_word_sequence_RE_ ?= ^$$
923 sc_prohibit_undesirable_word_seq:
924 @perl -n -0777 $(prohibit_undesirable_word_seq_) \
925 $$($(VC_LIST_EXCEPT)) \
926 | grep -vE '$(ignore_undesirable_word_sequence_RE_)' | grep . \
927 && { echo '$(ME): undesirable word sequence' >&2; exit 1; } || :
929 _ptm1 = use "test C1 && test C2", not "test C1 -''a C2"
930 _ptm2 = use "test C1 || test C2", not "test C1 -''o C2"
931 # Using test's -a and -o operators is not portable.
932 # We prefer test over [, since the latter is spelled [[ in configure.ac.
933 sc_prohibit_test_minus_ao:
934 @prohibit='(\<test| \[+) .+ -[ao] ' \
935 halt='$(_ptm1); $(_ptm2)' \
938 # Avoid a test bashism.
939 sc_prohibit_test_double_equal:
940 @prohibit='(\<test| \[+) .+ == ' \
941 containing='#! */bin/[a-z]*sh' \
942 halt='use "test x = x", not "test x =''= x"' \
945 # Each program that uses proper_name_utf8 must link with one of the
946 # ICONV libraries. Otherwise, some ICONV library must appear in LDADD.
947 # The perl -0777 invocation below extracts the possibly-multi-line
948 # definition of LDADD from the appropriate Makefile.am and exits 0
949 # when it contains "ICONV".
950 sc_proper_name_utf8_requires_ICONV:
951 @progs=$$(grep -l 'proper_name_utf8 ''("' $$($(VC_LIST_EXCEPT)));\
952 if test "x$$progs" != x; then \
954 for p in $$progs; do \
955 dir=$$(dirname "$$p"); \
957 -ne 'exit !(/^LDADD =(.+?[^\\]\n)/ms && $$1 =~ /ICONV/)' \
958 $$dir/Makefile.am && continue; \
959 base=$$(basename "$$p" .c); \
960 grep "$${base}_LDADD.*ICONV)" $$dir/Makefile.am > /dev/null \
961 || { fail=1; echo 1>&2 "$(ME): $$p uses proper_name_utf8"; }; \
964 { echo 1>&2 '$(ME): the above do not link with any ICONV library'; \
968 # Warn about "c0nst struct Foo const foo[]",
969 # but not about "char const *const foo" or "#define const const".
971 @prohibit='\bconst\b[[:space:][:alnum:]]{2,}\bconst\b' \
972 halt='redundant "const" in declarations' \
975 sc_const_long_option:
976 @grep '^ *static.*struct option ' $$($(VC_LIST_EXCEPT)) \
977 | grep -Ev 'const struct option|struct option const' && { \
978 echo 1>&2 '$(ME): add "const" to the above declarations'; \
982 $$(sed -n '/^\*.* $(PREV_VERSION_REGEXP) ([0-9-]*)/,$$p' \
985 's/^Copyright.+?Free\sSoftware\sFoundation,\sInc\.\n//ms' \
989 # Ensure that we don't accidentally insert an entry into an old NEWS block.
991 @if test -f $(srcdir)/NEWS; then \
992 test "$(NEWS_hash)" = '$(old_NEWS_hash)' && : || \
993 { echo '$(ME): you have modified old NEWS' 1>&2; exit 1; }; \
996 # Update the hash stored above. Do this after each release and
997 # for any corrections to old entries.
998 update-NEWS-hash: NEWS
999 perl -pi -e 's/^(old_NEWS_hash[ \t]+:?=[ \t]+).*/$${1}'"$(NEWS_hash)/" \
1002 # Ensure that we use only the standard $(VAR) notation,
1003 # not @...@ in Makefile.am, now that we can rely on automake
1004 # to emit a definition for each substituted variable.
1005 # However, there is still one case in which @VAR@ use is not just
1006 # legitimate, but actually required: when augmenting an automake-defined
1007 # variable with a prefix. For example, gettext uses this:
1008 # MAKEINFO = env LANG= LC_MESSAGES= LC_ALL= LANGUAGE= @MAKEINFO@
1009 # otherwise, makeinfo would put German or French (current locale)
1010 # navigation hints in the otherwise-English documentation.
1012 # Allow the package to add exceptions via a hook in cfg.mk;
1013 # for example, @PRAGMA_SYSTEM_HEADER@ can be permitted by
1014 # setting this to ' && !/PRAGMA_SYSTEM_HEADER/'.
1015 _makefile_at_at_check_exceptions ?=
1016 sc_makefile_at_at_check:
1017 @perl -ne '/\@[A-Z_0-9]+\@/' \
1018 -e ' && !/([A-Z_0-9]+)\s+=.*\@\1\@$$/' \
1019 -e ''$(_makefile_at_at_check_exceptions) \
1020 -e 'and (print "$$ARGV:$$.: $$_"), $$m=1; END {exit !$$m}' \
1021 $$($(VC_LIST_EXCEPT) | grep -E '(^|/)(Makefile\.am|[^/]+\.mk)$$') \
1022 && { echo '$(ME): use $$(...), not @...@' 1>&2; exit 1; } || :
1025 if sed -n $(news-check-lines-spec)p $(srcdir)/NEWS \
1026 | grep -E $(news-check-regexp) >/dev/null; then \
1029 echo 'NEWS: $$(news-check-regexp) failed to match' 1>&2; \
1033 sc_makefile_TAB_only_indentation:
1034 @prohibit='^ [ ]{8}' \
1035 in_vc_files='akefile|\.mk$$' \
1036 halt='found TAB-8-space indentation' \
1037 $(_sc_search_regexp)
1040 @prohibit='(AC_DEFINE(_UNQUOTED)?|AC_DEFUN)\([^[]' \
1041 in_vc_files='(^configure\.ac|\.m4)$$' \
1042 halt='quote the first arg to AC_DEF*' \
1043 $(_sc_search_regexp)
1045 fix_po_file_diag = \
1046 'you have changed the set of files with translatable diagnostics;\n\
1047 apply the above patch\n'
1049 # Verify that all source files using _() are listed in po/POTFILES.in.
1050 po_file ?= $(srcdir)/po/POTFILES.in
1051 generated_files ?= $(srcdir)/lib/*.[ch]
1053 @if test -f $(po_file); then \
1054 grep -E -v '^(#|$$)' $(po_file) \
1055 | grep -v '^src/false\.c$$' | sort > $@-1; \
1057 for file in $$($(VC_LIST_EXCEPT)) $(generated_files); do \
1058 test -r $$file || continue; \
1060 *.m4|*.mk) continue ;; \
1066 base=`expr " $$file" : ' \(.*\)\..'`; \
1067 { test -f $$base.l || test -f $$base.y; } && continue;; \
1069 files="$$files $$file"; \
1071 grep -E -l '\b(N?_|gettext *)\([^)"]*("|$$)' $$files \
1072 | sed 's|^$(_dot_escaped_srcdir)/||' | sort -u > $@-2; \
1073 diff -u -L $(po_file) -L $(po_file) $@-1 $@-2 \
1074 || { printf '$(ME): '$(fix_po_file_diag) 1>&2; exit 1; }; \
1078 # Sometimes it is useful to change the PATH environment variable
1079 # in Makefiles. When doing so, it's better not to use the Unix-centric
1080 # path separator of `:', but rather the automake-provided `$(PATH_SEPARATOR)'.
1081 msg = '$(ME): Do not use `:'\'' above; use $$(PATH_SEPARATOR) instead'
1082 sc_makefile_path_separator_check:
1083 @prohibit='PATH[=].*:' \
1084 in_vc_files='akefile|\.mk$$' \
1086 $(_sc_search_regexp)
1088 # Check that `make alpha' will not fail at the end of the process,
1089 # i.e., when pkg-M.N.tar.xz already exists (either in "." or in ../release)
1092 if test -d $(release_archive_dir); then \
1093 for file in $(DIST_ARCHIVES); do \
1094 for p in ./ $(release_archive_dir)/; do \
1095 test -e $$p$$file || continue; \
1097 || { echo ERROR: $$p$$file is not writable; fail=1; }; \
1100 test "$$fail" && exit 1 || : ; \
1104 v_etc_file = $(gnulib_dir)/lib/version-etc.c
1105 sample-test = tests/sample-test
1106 texi = doc/$(PACKAGE).texi
1107 # Make sure that the copyright date in $(v_etc_file) is up to date.
1108 # Do the same for the $(sample-test) and the main doc/.texi file.
1110 @require='enum { COPYRIGHT_YEAR = '$$(date +%Y)' };' \
1111 in_files=$(v_etc_file) \
1112 halt='out of date copyright in $(v_etc_file); update it' \
1113 $(_sc_search_regexp)
1114 @require='# Copyright \(C\) '$$(date +%Y)' Free' \
1115 in_vc_files=$(sample-test) \
1116 halt='out of date copyright in $(sample-test); update it' \
1117 $(_sc_search_regexp)
1118 @require='Copyright @copyright\{\} .*'$$(date +%Y)' Free' \
1119 in_vc_files=$(texi) \
1120 halt='out of date copyright in $(texi); update it' \
1121 $(_sc_search_regexp)
1123 # If tests/help-version exists and seems to be new enough, assume that its
1124 # use of init.sh and path_prepend_ is correct, and ensure that every other
1125 # use of init.sh is identical.
1126 # This is useful because help-version cross-checks prog --version
1127 # with $(VERSION), which verifies that its path_prepend_ invocation
1128 # sets PATH correctly. This is an inexpensive way to ensure that
1129 # the other init.sh-using tests also get it right.
1130 _hv_file ?= $(srcdir)/tests/help-version
1131 _hv_regex_weak ?= ^ *\. .*/init\.sh"
1132 # Fix syntax-highlighters "
1133 _hv_regex_strong ?= ^ *\. "\$${srcdir=\.}/init\.sh"
1134 sc_cross_check_PATH_usage_in_tests:
1135 @if test -f $(_hv_file); then \
1136 grep -l 'VERSION mismatch' $(_hv_file) >/dev/null \
1137 || { echo "$@: skipped: no such file: $(_hv_file)" 1>&2; \
1139 grep -lE '$(_hv_regex_strong)' $(_hv_file) >/dev/null \
1140 || { echo "$@: $(_hv_file) lacks conforming use of init.sh" 1>&2; \
1142 good=$$(grep -E '$(_hv_regex_strong)' $(_hv_file)); \
1143 grep -LFx "$$good" \
1144 $$(grep -lE '$(_hv_regex_weak)' $$($(VC_LIST_EXCEPT))) \
1146 { echo "$(ME): the above files use path_prepend_ inconsistently" \
1147 1>&2; exit 1; } || :; \
1150 # #if HAVE_... will evaluate to false for any non numeric string.
1151 # That would be flagged by using -Wundef, however gnulib currently
1152 # tests many undefined macros, and so we can't enable that option.
1153 # So at least preclude common boolean strings as macro values.
1155 @prohibit='^#define.*(yes|no|true|false)$$' \
1156 in_files='$(CONFIG_INCLUDE)' \
1157 halt='Use 0 or 1 for macro values' \
1158 $(_sc_search_regexp)
1160 # Even if you use pathmax.h to guarantee that PATH_MAX is defined, it might
1161 # not be constant, or might overflow a stack. In general, use PATH_MAX as
1162 # a limit, not an array or alloca size.
1163 sc_prohibit_path_max_allocation:
1164 @prohibit='(\balloca *\([^)]*|\[[^]]*)PATH_MAX' \
1165 halt='Avoid stack allocations of size PATH_MAX' \
1166 $(_sc_search_regexp)
1168 sc_vulnerable_makefile_CVE-2009-4029:
1169 @prohibit='perm -777 -exec chmod a\+rwx|chmod 777 \$$\(distdir\)' \
1170 in_files=$$(find $(srcdir) -name Makefile.in) \
1171 halt=$$(printf '%s\n' \
1172 'the above files are vulnerable; beware of running' \
1173 ' "make dist*" rules, and upgrade to fixed automake' \
1174 ' see http://bugzilla.redhat.com/542609 for details') \
1175 $(_sc_search_regexp)
1178 (unset CDPATH; cd $(srcdir) && $(VC) diff) > vc-diffs || :
1179 if test -s vc-diffs; then \
1181 echo "Some files are locally modified:" 1>&2; \
1187 rel-files = $(DIST_ARCHIVES)
1189 gnulib_dir ?= $(srcdir)/gnulib
1190 gnulib-version = $$(cd $(gnulib_dir) && git describe)
1191 bootstrap-tools ?= autoconf,automake,gnulib
1193 # If it's not already specified, derive the GPG key ID from
1194 # the signed tag we've just applied to mark this release.
1196 $$(git cat-file tag v$(VERSION) > .ann-sig \
1197 && gpgv .ann-sig - < /dev/null 2>&1 \
1198 | sed -n '/.*key ID \([0-9A-F]*\)/s//\1/p'; rm -f .ann-sig)
1200 translation_project_ ?= coordinator@translationproject.org
1202 # Make info-gnu the default only for a stable release.
1203 ifeq ($(RELEASE_TYPE),stable)
1204 announcement_Cc_ ?= $(translation_project_), $(PACKAGE_BUGREPORT)
1205 announcement_mail_headers_ ?= \
1206 To: info-gnu@gnu.org \
1207 Cc: $(announcement_Cc_) \
1208 Mail-Followup-To: $(PACKAGE_BUGREPORT)
1210 announcement_Cc_ ?= $(translation_project_)
1211 announcement_mail_headers_ ?= \
1212 To: $(PACKAGE_BUGREPORT) \
1213 Cc: $(announcement_Cc_)
1216 announcement: NEWS ChangeLog $(rel-files)
1217 @$(srcdir)/$(_build-aux)/announce-gen \
1218 --mail-headers='$(announcement_mail_headers_)' \
1219 --release-type=$(RELEASE_TYPE) \
1220 --package=$(PACKAGE) \
1221 --prev=$(PREV_VERSION) \
1223 --gpg-key-id=$(gpg_key_ID) \
1224 --news=$(srcdir)/NEWS \
1225 --bootstrap-tools=$(bootstrap-tools) \
1226 --gnulib-version=$(gnulib-version) \
1227 --no-print-checksums \
1228 $(addprefix --url-dir=, $(url_dir_list))
1230 ## ---------------- ##
1231 ## Updating files. ##
1232 ## ---------------- ##
1234 ftp-gnu = ftp://ftp.gnu.org/gnu
1235 www-gnu = http://www.gnu.org
1237 upload_dest_dir_ ?= $(PACKAGE)
1238 emit_upload_commands:
1239 @echo =====================================
1240 @echo =====================================
1241 @echo "$(srcdir)/$(_build-aux)/gnupload $(GNUPLOADFLAGS) \\"
1242 @echo " --to $(gnu_rel_host):$(upload_dest_dir_) \\"
1243 @echo " $(rel-files)"
1244 @echo '# send the ~/announce-$(my_distdir) e-mail'
1245 @echo =====================================
1246 @echo =====================================
1248 define emit-commit-log
1249 printf '%s\n' 'maint: post-release administrivia' '' \
1250 '* NEWS: Add header line for next release.' \
1251 '* .prev-version: Record previous version.' \
1252 '* cfg.mk (old_NEWS_hash): Auto-update.'
1255 .PHONY: no-submodule-changes
1256 no-submodule-changes:
1257 if test -d $(srcdir)/.git; then \
1258 diff=$$(cd $(srcdir) && git submodule -q foreach \
1259 git diff-index --name-only HEAD) \
1261 case $$diff in '') ;; \
1262 *) echo '$(ME): submodule files are locally modified:'; \
1263 echo "$$diff"; exit 1;; esac; \
1268 submodule-checks ?= no-submodule-changes public-submodule-commit
1270 # Ensure that each sub-module commit we're using is public.
1271 # Without this, it is too easy to tag and release code that
1272 # cannot be built from a fresh clone.
1273 .PHONY: public-submodule-commit
1274 public-submodule-commit:
1275 $(AM_V_GEN)if test -d $(srcdir)/.git; then \
1277 git submodule --quiet foreach test '$$(git rev-parse $$sha1)' \
1278 = '$$(git merge-base origin $$sha1)' \
1279 || { echo '$(ME): found non-public submodule commit' >&2; \
1284 # This rule has a high enough utility/cost ratio that it should be a
1285 # dependent of "check" by default. However, some of us do occasionally
1286 # commit a temporary change that deliberately points to a non-public
1287 # submodule commit, and want to be able to use rules like "make check".
1288 # In that case, run e.g., "make check gl_public_submodule_commit="
1289 # to disable this test.
1290 gl_public_submodule_commit ?= public-submodule-commit
1291 check: $(gl_public_submodule_commit)
1293 .PHONY: alpha beta stable
1294 ALL_RECURSIVE_TARGETS += alpha beta stable
1295 alpha beta stable: $(local-check) writable-files $(submodule-checks)
1297 && { echo $(VERSION) | grep -E '^[0-9]+(\.[0-9]+)+$$' \
1298 || { echo "invalid version string: $(VERSION)" 1>&2; exit 1;};}\
1300 $(MAKE) vc-diff-check
1303 $(MAKE) dist XZ_OPT=-9ev
1304 $(MAKE) $(release-prep-hook) RELEASE_TYPE=$@
1305 $(MAKE) -s emit_upload_commands RELEASE_TYPE=$@
1307 # Override this in cfg.mk if you follow different procedures.
1308 release-prep-hook ?= release-prep
1310 gl_noteworthy_news_ = * Noteworthy changes in release ?.? (????-??-??) [?]
1311 .PHONY: release-prep
1313 case $$RELEASE_TYPE in alpha|beta|stable) ;; \
1314 *) echo "invalid RELEASE_TYPE: $$RELEASE_TYPE" 1>&2; exit 1;; esac
1315 $(MAKE) --no-print-directory -s announcement > ~/announce-$(my_distdir)
1316 if test -d $(release_archive_dir); then \
1317 ln $(rel-files) $(release_archive_dir); \
1318 chmod a-w $(rel-files); \
1320 echo $(VERSION) > $(prev_version_file)
1321 $(MAKE) update-NEWS-hash
1322 perl -pi -e '$$. == 3 and print "$(gl_noteworthy_news_)\n\n\n"' NEWS
1323 $(emit-commit-log) > .ci-msg
1324 $(VC) commit -F .ci-msg -a
1327 # Override this with e.g., -s $(srcdir)/some_other_name.texi
1328 # if the default $(PACKAGE)-derived name doesn't apply.
1333 @test -z "$(manual_title)" \
1334 && { echo define manual_title in cfg.mk 1>&2; exit 1; } || :
1335 @cd '$(srcdir)/doc'; \
1336 $(SHELL) ../$(_build-aux)/gendocs.sh $(gendocs_options_) \
1337 -o '$(abs_builddir)/doc/manual' \
1338 --email $(PACKAGE_BUGREPORT) $(PACKAGE) \
1339 "$(PACKAGE_NAME) - $(manual_title)"
1340 @echo " *** Upload the doc/manual directory to web-cvs."
1345 $(MAKE) $(AM_MAKEFLAGS) clean
1346 lcov --directory . --zerocounters
1348 COVERAGE_CCOPTS ?= "-g --coverage"
1349 COVERAGE_OUT ?= doc/coverage
1352 $(MAKE) $(AM_MAKEFLAGS) CFLAGS=$(COVERAGE_CCOPTS) CXXFLAGS=$(COVERAGE_CCOPTS)
1353 $(MAKE) $(AM_MAKEFLAGS) CFLAGS=$(COVERAGE_CCOPTS) CXXFLAGS=$(COVERAGE_CCOPTS) check
1354 mkdir -p $(COVERAGE_OUT)
1355 lcov --directory . --output-file $(COVERAGE_OUT)/$(PACKAGE).info \
1359 genhtml --output-directory $(COVERAGE_OUT) \
1360 $(COVERAGE_OUT)/$(PACKAGE).info \
1361 --highlight --frames --legend \
1362 --title "$(PACKAGE_NAME)"
1364 coverage: init-coverage build-coverage gen-coverage
1366 # Update gettext files.
1367 PACKAGE ?= $(shell basename $(PWD))
1368 PO_DOMAIN ?= $(PACKAGE)
1369 POURL = http://translationproject.org/latest/$(PO_DOMAIN)/
1372 rm -f $(PODIR)/*.po && \
1373 echo "$(ME): getting translations into po (please ignore the robots.txt ERROR 404)..." && \
1374 wget --no-verbose --directory-prefix $(PODIR) --no-directories --recursive --level 1 --accept .po --accept .po.1 $(POURL) && \
1375 echo 'en@boldquot' > $(PODIR)/LINGUAS && \
1376 echo 'en@quot' >> $(PODIR)/LINGUAS && \
1377 ls $(PODIR)/*.po | sed 's/\.po//' | sed 's,$(PODIR)/,,' | sort >> $(PODIR)/LINGUAS
1379 # Running indent once is not idempotent, but running it twice is.
1380 INDENT_SOURCES ?= $(C_SOURCES)
1383 indent $(INDENT_SOURCES)
1384 indent $(INDENT_SOURCES)
1386 # If you want to set UPDATE_COPYRIGHT_* environment variables,
1387 # put the assignments in this variable.
1388 update-copyright-env ?=
1390 # Run this rule once per year (usually early in January)
1391 # to update all FSF copyright year lists in your project.
1392 # If you have an additional project-specific rule,
1393 # add it in cfg.mk along with a line 'update-copyright: prereq'.
1394 # By default, exclude all variants of COPYING; you can also
1395 # add exemptions (such as ChangeLog..* for rotated change logs)
1396 # in the file .x-update-copyright.
1397 .PHONY: update-copyright
1399 grep -l -w Copyright \
1400 $$(export VC_LIST_EXCEPT_DEFAULT=COPYING && $(VC_LIST_EXCEPT)) \
1401 | $(update-copyright-env) xargs $(srcdir)/$(_build-aux)/$@
1403 # This tight_scope test is skipped with a warning if $(_gl_TS_headers) is not
1404 # overridden and $(_gl_TS_dir)/Makefile.am does not mention noinst_HEADERS.
1406 # NOTE: to override any _gl_TS_* default value, you must
1407 # define the variable(s) using "export" in cfg.mk.
1410 ALL_RECURSIVE_TARGETS += sc_tight_scope
1411 sc_tight_scope: tight-scope.mk
1413 if ! grep '^ *export _gl_TS_headers *=' $(srcdir)/cfg.mk \
1415 && ! grep -w noinst_HEADERS $(srcdir)/$(_gl_TS_dir)/Makefile.am \
1416 > /dev/null 2>&1; then \
1417 echo '$(ME): skipping $@'; \
1419 $(MAKE) -s -C $(_gl_TS_dir) \
1421 -f $(abs_top_srcdir)/cfg.mk \
1422 -f $(abs_top_builddir)/$< \
1429 tight-scope.mk: $(ME)
1431 @perl -ne '/^# TS-start/.../^# TS-end/ and print' $(ME) > $@-t
1432 @chmod a=r $@-t && mv $@-t $@
1437 # Most functions should have static scope.
1438 # Any that don't must be marked with `extern', but `main'
1439 # and `usage' are exceptions: they're always extern, but
1440 # do not need to be marked. Symbols matching `__.*' are
1441 # reserved by the compiler, so are automatically excluded below.
1442 _gl_TS_unmarked_extern_functions ?= main usage
1443 _gl_TS_function_match ?= /^(?:$(_gl_TS_extern)) +.*?(\S+) *\(/
1445 # If your project uses a macro like "XTERN", then put
1446 # the following in cfg.mk to override this default:
1447 # export _gl_TS_extern = extern|XTERN
1448 _gl_TS_extern ?= extern
1450 # The second nm|grep checks for file-scope variables with `extern' scope.
1451 # Without gnulib's progname module, you might put program_name here.
1452 # Symbols matching `__.*' are reserved by the compiler,
1453 # so are automatically excluded below.
1454 _gl_TS_unmarked_extern_vars ?=
1456 # NOTE: the _match variables are perl expressions -- not mere regular
1457 # expressions -- so that you can extend them to match other patterns
1458 # and easily extract matched variable names.
1459 # For example, if your project declares some global variables via
1460 # a macro like this: GLOBAL(type, var_name, initializer), then you
1461 # can override this definition to automatically extract those names:
1462 # export _gl_TS_var_match = \
1463 # /^(?:$(_gl_TS_extern)) .*?\**(\w+)(\[.*?\])?;/ || /\bGLOBAL\(.*?,\s*(.*?),/
1464 _gl_TS_var_match ?= /^(?:$(_gl_TS_extern)) .*?(\w+)(\[.*?\])?;/
1466 # The names of object files in (or relative to) $(_gl_TS_dir).
1467 _gl_TS_obj_files ?= *.$(OBJEXT)
1469 # Files in which to search for the one-line style extern declarations.
1470 # $(_gl_TS_dir)-relative.
1471 _gl_TS_headers ?= $(noinst_HEADERS)
1473 .PHONY: _gl_tight_scope
1474 _gl_tight_scope: $(bin_PROGRAMS)
1475 t=exceptions-$$$$; \
1476 trap 's=$$?; rm -f $$t; exit $$s' 0; \
1477 for sig in 1 2 3 13 15; do \
1478 eval "trap 'v=`expr $$sig + 128`; (exit $$v); exit $$v' $$sig"; \
1480 src=`for f in $(SOURCES); do \
1481 test -f $$f && d= || d=$(srcdir)/; echo $$d$$f; done`; \
1482 hdr=`for f in $(_gl_TS_headers); do \
1483 test -f $$f && d= || d=$(srcdir)/; echo $$d$$f; done`; \
1484 ( printf '^%s$$\n' '__.*' $(_gl_TS_unmarked_extern_functions); \
1485 grep -h -A1 '^extern .*[^;]$$' $$src \
1486 | grep -vE '^(extern |--)' | sed 's/ .*//'; \
1488 '$(_gl_TS_function_match) and print "^$$1\$$"' $$hdr; \
1489 ) | sort -u > $$t; \
1490 nm -e $(_gl_TS_obj_files) | sed -n 's/.* T //p'|grep -Ev -f $$t \
1491 && { echo the above functions should have static scope >&2; \
1493 ( printf '^%s$$\n' '__.*' $(_gl_TS_unmarked_extern_vars); \
1494 perl -lne '$(_gl_TS_var_match) and print "^$$1\$$"' $$hdr *.h \
1495 ) | sort -u > $$t; \
1496 nm -e $(_gl_TS_obj_files) | sed -n 's/.* [BCDGRS] //p' \
1497 | sort -u | grep -Ev -f $$t \
1498 && { echo the above variables should have static scope >&2; \