cfg.mk

   1 # Customize maint.mk                           -*- makefile -*-
   2 # Copyright (C) 2003-2012 Free Software Foundation, Inc.
   3
   4 # This program is free software: you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation, either version 3 of the License, or
   7 # (at your option) any later version.
   8
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 # Used in maint.mk's web-manual rule
  18 manual_title = Core GNU utilities
  19
  20 # Use the direct link.  This is guaranteed to work immediately, while
  21 # it can take a while for the faster mirror links to become usable.
  22 url_dir_list = http://ftp.gnu.org/gnu/$(PACKAGE)
  23
  24 # Tests not to run as part of "make distcheck".
  25 local-checks-to-skip = \
  26   sc_texinfo_acronym
  27
  28 # Tools used to bootstrap this package, used for "announcement".
  29 bootstrap-tools = autoconf,automake,gnulib,bison
  30
  31 # Now that we have better tests, make this the default.
  32 export VERBOSE = yes
  33
  34 # Comparing tarball sizes compressed using different xz presets, we see that
  35 # an -8e-compressed tarball is only 9KiB larger than the -9e-compressed one.
  36 # Using -8e is preferred, since that lets the decompression process use half
  37 # the memory (32MiB rather than 64MiB).
  38 # $ for i in {7,8,9}{e,}; do \
  39 #     (n=$(xz -$i < coreutils-8.15*.tar|wc -c);echo $n $i) & done |sort -nr
  40 # 5129388 7
  41 # 5036524 7e
  42 # 5017476 8
  43 # 5010604 9
  44 # 4923016 8e
  45 # 4914152 9e
  46 export XZ_OPT = -8e
  47
  48 old_NEWS_hash = b081ffe4128201150126951b1d8263e1
  49
  50 # Add an exemption for sc_makefile_at_at_check.
  51 _makefile_at_at_check_exceptions = ' && !/^cu_install_program =/'
  52
  53 # Our help-version script is in a slightly different location.
  54 _hv_file ?= $(srcdir)/tests/misc/help-version
  55
  56 # Ensure that the list of O_ symbols used to compute O_FULLBLOCK is complete.
  57 dd = $(srcdir)/src/dd.c
  58 sc_dd_O_FLAGS:
  59         @rm -f $@.1 $@.2
  60         @{ echo O_FULLBLOCK; echo O_NOCACHE;                            \
  61           perl -nle '/^ +\| (O_\w*)$$/ and print $$1' $(dd); } | sort > $@.1
  62         @{ echo O_NOFOLLOW; perl -nle '/{"[a-z]+",\s*(O_\w+)},/ and print $$1' \
  63           $(dd); } | sort > $@.2
  64         @diff -u $@.1 $@.2 || diff=1 || diff=;                          \
  65         rm -f $@.1 $@.2;                                                \
  66         test "$$diff"                                                   \
  67           && { echo '$(ME): $(dd) has inconsistent O_ flag lists'>&2;   \
  68                exit 1; } || :
  69
  70 # Ensure that dd's definition of LONGEST_SYMBOL stays in sync
  71 # with the strings from the two affected variables.
  72 dd_c = $(srcdir)/src/dd.c
  73 sc_dd_max_sym_length:
  74 ifneq ($(wildcard $(dd_c)),)
  75         @len=$$( (sed -n '/conversions\[\] =$$/,/^};/p' $(dd_c);\
  76                  sed -n '/flags\[\] =$$/,/^};/p' $(dd_c) )      \
  77                 |sed -n '/"/s/^[^"]*"\([^"]*\)".*/\1/p'         \
  78               | wc --max-line-length);                          \
  79         max=$$(sed -n '/^#define LONGEST_SYMBOL /s///p' $(dd_c) \
  80               |tr -d '"' | wc --max-line-length);               \
  81         if test "$$len" = "$$max"; then :; else                 \
  82           echo 'dd.c: LONGEST_SYMBOL is not longest' 1>&2;      \
  83           exit 1;                                               \
  84         fi
  85 endif
  86
  87 # Many m4 macros names once began with 'jm_'.
  88 # On 2004-04-13, they were all changed to start with gl_ instead.
  89 # Make sure that none are inadvertently reintroduced.
  90 sc_prohibit_jm_in_m4:
  91         @grep -nE 'jm_[A-Z]'                                            \
  92                 $$($(VC_LIST) m4 |grep '\.m4$$'; echo /dev/null) &&     \
  93             { echo '$(ME): do not use jm_ in m4 macro names'            \
  94               1>&2; exit 1; } || :
  95
  96 # Ensure that each root-requiring test is run via the "check-root" rule.
  97 sc_root_tests:
  98         @if test -d tests \
  99               && grep check-root tests/Makefile.am>/dev/null 2>&1; then \
 100         t1=sc-root.expected; t2=sc-root.actual;                         \
 101         grep -nl '^ *require_root_$$'                                   \
 102           $$($(VC_LIST) tests) |sed s,tests/,, |sort > $$t1;            \
 103         sed -n '/^root_tests =[  ]*\\$$/,/[^\]$$/p'                     \
 104           $(srcdir)/tests/Makefile.am                                   \
 105             | sed 's/^  *//;/^root_tests =/d'                           \
 106             | tr -s '\012\\' '  ' | fmt -1 | sort > $$t2;               \
 107         diff -u $$t1 $$t2 || diff=1 || diff=;                           \
 108         rm -f $$t1 $$t2;                                                \
 109         test "$$diff"                                                   \
 110           && { echo 'tests/Makefile.am: missing check-root action'>&2;  \
 111                exit 1; } || :;                                          \
 112         fi
 113
 114 # Create a list of regular expressions matching the names
 115 # of files included from system.h.  Exclude a couple.
 116 .re-list:
 117         @sed -n '/^# *include /s///p' $(srcdir)/src/system.h \
 118           | grep -Ev 'sys/(param|file)\.h' \
 119           | sed 's/ .*//;;s/^["<]/^# *include [<"]/;s/\.h[">]$$/\\.h[">]/' \
 120           > $@-t
 121         @mv $@-t $@
 122
 123 define gl_trap_
 124   Exit () { set +e; (exit $$1); exit $$1; };                            \
 125   for sig in 1 2 3 13 15; do                                            \
 126     eval "trap 'Exit $$(expr $$sig + 128)' $$sig";                      \
 127   done
 128 endef
 129
 130 # Files in src/ should not include directly any of
 131 # the headers already included via system.h.
 132 sc_system_h_headers: .re-list
 133         @if test -f $(srcdir)/src/system.h; then                        \
 134           trap 'rc=$$?; rm -f .re-list; exit $$rc' 0;                   \
 135           $(gl_trap_);                                                  \
 136           grep -nE -f .re-list                                          \
 137               $$($(VC_LIST_EXCEPT) | grep '^\($(srcdir)/\)\?src/')      \
 138             && { echo '$(ME): the above are already included via system.h'\
 139                   1>&2;  exit 1; } || :;                                \
 140         fi
 141
 142 sc_sun_os_names:
 143         @grep -nEi \
 144             'solaris[^[:alnum:]]*2\.(7|8|9|[1-9][0-9])|sunos[^[:alnum:]][6-9]' \
 145             $$($(VC_LIST_EXCEPT)) &&                                    \
 146           { echo '$(ME): found misuse of Sun OS version numbers' 1>&2;  \
 147             exit 1; } || :
 148
 149 ALL_RECURSIVE_TARGETS += sc_check-AUTHORS
 150 sc_check-AUTHORS:
 151         @$(MAKE) -s -C src _sc_check-AUTHORS
 152
 153 # Look for lines longer than 80 characters, except omit:
 154 # - program-generated long lines in diff headers,
 155 # - tests involving long checksum lines, and
 156 # - the 'pr' test cases.
 157 LINE_LEN_MAX = 80
 158 FILTER_LONG_LINES =                                             \
 159   /^[^:]*\.diff:[^:]*:@@ / d;                                   \
 160   \|^[^:]*tests/misc/sha[0-9]*sum[-:]| d;                       \
 161   \|^[^:]*tests/pr/|{ \|^[^:]*tests/pr/pr-tests:| !d; };
 162 sc_long_lines:
 163         @files=$$($(VC_LIST_EXCEPT))                                    \
 164         halt='line(s) with more than $(LINE_LEN_MAX) characters; reindent'; \
 165         for file in $$files; do                                         \
 166           expand $$file | grep -nE '^.{$(LINE_LEN_MAX)}.' |             \
 167           sed -e "s|^|$$file:|" -e '$(FILTER_LONG_LINES)';              \
 168         done | grep . && { msg="$$halt" $(_sc_say_and_exit) } || :
 169
 170 # Option descriptions should not start with a capital letter
 171 # One could grep source directly as follows:
 172 # grep -E " {2,6}-.*[^.]  [A-Z][a-z]" $$($(VC_LIST_EXCEPT) | grep '\.c$$')
 173 # but that would miss descriptions not on the same line as the -option.
 174 ALL_RECURSIVE_TARGETS += sc_option_desc_uppercase
 175 sc_option_desc_uppercase:
 176         @$(MAKE) -s -C src all_programs
 177         @$(MAKE) -s -C man $@
 178
 179 # Ensure all man/*.[1x] files are present
 180 ALL_RECURSIVE_TARGETS += sc_man_file_correlation
 181 sc_man_file_correlation:
 182         @$(MAKE) -s -C src all_programs
 183         @$(MAKE) -s -C man $@
 184
 185 # Ensure that the end of each release's section is marked by two empty lines.
 186 sc_NEWS_two_empty_lines:
 187         @sed -n 4,/Noteworthy/p $(srcdir)/NEWS                          \
 188             | perl -n0e '/(^|\n)\n\n\* Noteworthy/ or exit 1'           \
 189           || { echo '$(ME): use two empty lines to separate NEWS sections' \
 190                  1>&2; exit 1; } || :
 191
 192 # Perl-based tests used to exec perl from a #!/bin/sh script.
 193 # Now they all start with #!/usr/bin/perl and the portability
 194 # infrastructure is in tests/Makefile.am.  Make sure no old-style
 195 # script sneaks back in.
 196 sc_no_exec_perl_coreutils:
 197         @if test -f $(srcdir)/tests/Coreutils.pm; then                  \
 198           grep '^exec  *\$$PERL.*MCoreutils' $$($(VC_LIST) tests) &&    \
 199             { echo 1>&2 '$(ME): found anachronistic Perl-based tests';  \
 200               exit 1; } || :;                                           \
 201         fi
 202
 203 # With split lines, don't leave an operator at end of line.
 204 # Instead, put it on the following line, where it is more apparent.
 205 # Don't bother checking for "*" at end of line, since it provokes
 206 # far too many false positives, matching constructs like "TYPE *".
 207 # Similarly, omit "=" (initializers).
 208 binop_re_ ?= [-/+^!<>]|[-/+*^!<>=]=|&&?|\|\|?|<<=?|>>=?
 209 sc_prohibit_operator_at_end_of_line:
 210         @prohibit='. ($(binop_re_))$$'                                  \
 211         in_vc_files='\.[chly]$$'                                        \
 212         halt='found operator at end of line'                            \
 213           $(_sc_search_regexp)
 214
 215 # Don't use "readlink" or "readlinkat" directly
 216 sc_prohibit_readlink:
 217         @prohibit='\<readlink(at)? \('                                  \
 218         halt='do not use readlink(at); use via xreadlink or areadlink*' \
 219           $(_sc_search_regexp)
 220
 221 # Don't use address of "stat" or "lstat" functions
 222 sc_prohibit_stat_macro_address:
 223         @prohibit='\<l?stat '':|&l?stat\>'                              \
 224         halt='stat() and lstat() may be function-like macros'           \
 225           $(_sc_search_regexp)
 226
 227 # Ensure that date's --help output stays in sync with the info
 228 # documentation for GNU strftime.  The only exception is %N,
 229 # which date accepts but GNU strftime does not.
 230 extract_char = sed 's/^[^%][^%]*%\(.\).*/\1/'
 231 sc_strftime_check:
 232         @if test -f $(srcdir)/src/date.c; then                          \
 233           grep '^  %.  ' $(srcdir)/src/date.c | sort                    \
 234             | $(extract_char) > $@-src;                                 \
 235           { echo N;                                                     \
 236             info libc date calendar format 2>/dev/null|grep '^    `%.'\'\
 237               | $(extract_char); } | sort > $@-info;                    \
 238           if test $$(stat --format %s $@-info) != 2; then               \
 239             diff -u $@-src $@-info || exit 1;                           \
 240           else                                                          \
 241             echo '$(ME): skipping $@: libc info not installed' 1>&2;    \
 242           fi;                                                           \
 243           rm -f $@-src $@-info;                                         \
 244         fi
 245
 246 # Indent only with spaces.
 247 sc_prohibit_tab_based_indentation:
 248         @prohibit='^ *  '                                               \
 249         halt='TAB in indentation; use only spaces'                      \
 250           $(_sc_search_regexp)
 251
 252 # The SEE ALSO section of a man page should not be terminated with
 253 # a period.  Check the first line after each "SEE ALSO" line in man/*.x:
 254 sc_prohibit_man_see_also_period:
 255         @grep -nB1 '\.$$' $$($(VC_LIST_EXCEPT) | grep 'man/.*\.x$$')    \
 256             | grep -A1 -e '-\[SEE ALSO\]' | grep '\.$$' &&              \
 257           { echo '$(ME): do not end "SEE ALSO" section with a period'   \
 258               1>&2; exit 1; } || :
 259
 260 # Don't use "indent-tabs-mode: nil" anymore.  No longer needed.
 261 sc_prohibit_emacs__indent_tabs_mode__setting:
 262         @prohibit='^( *[*#] *)?indent-tabs-mode:'                       \
 263         halt='use of emacs indent-tabs-mode: setting'                   \
 264           $(_sc_search_regexp)
 265
 266 # Ensure that tests don't include a redundant fail=0.
 267 sc_prohibit_fail_0:
 268         @prohibit='\<fail=0\>'                                          \
 269         halt='fail=0 initialization'                                    \
 270           $(_sc_search_regexp)
 271
 272 # The mode part of a setfacl -m option argument must be three bytes long.
 273 # I.e., an argument of user:bin:rw or user:bin:r will make Solaris 10's
 274 # setfacl reject it with: "Unrecognized character found in mode field".
 275 # Use hyphens to give it a length of 3: "...:rw-" or "...:r--".
 276 sc_prohibit_short_facl_mode_spec:
 277         @prohibit='\<setfacl .*-m.*:.*:[rwx-]{1,2} '                    \
 278         halt='setfacl mode string length < 3; extend with hyphen(s)'    \
 279           $(_sc_search_regexp)
 280
 281 # Ensure that "stdio--.h" is used where appropriate.
 282 sc_require_stdio_safer:
 283         @if $(VC_LIST_EXCEPT) | grep -l '\.[ch]$$' > /dev/null; then    \
 284           files=$$(grep -l '\bfreopen \?(' $$($(VC_LIST_EXCEPT)         \
 285               | grep '\.[ch]$$'));                                      \
 286           test -n "$$files" && grep -LE 'include "stdio--.h"' $$files   \
 287               | grep . &&                                               \
 288           { echo '$(ME): the above files should use "stdio--.h"'        \
 289                 1>&2; exit 1; } || :;                                   \
 290         else :;                                                         \
 291         fi
 292
 293 sc_prohibit_perl_hash_quotes:
 294         @prohibit="\{'[A-Z_]+' *[=}]"                                   \
 295         halt="in Perl code, write \$$hash{KEY}, not \$$hash{'K''EY'}"   \
 296           $(_sc_search_regexp)
 297
 298 # Prefer xnanosleep over other less-precise sleep methods
 299 sc_prohibit_sleep:
 300         @prohibit='\<(nano|u)?sleep \('                                 \
 301         halt='prefer xnanosleep over other sleep interfaces'            \
 302           $(_sc_search_regexp)
 303
 304 # Use print_ver_ (from init.cfg), not open-coded $VERBOSE check.
 305 sc_prohibit_verbose_version:
 306         @prohibit='test "\$$VERBOSE" = yes && .* --version'             \
 307         halt='use the print_ver_ function instead...'                   \
 308           $(_sc_search_regexp)
 309
 310 # Use framework_failure_, not the old name without the trailing underscore.
 311 sc_prohibit_framework_failure:
 312         @prohibit='\<framework_''failure\>'                             \
 313         halt='use framework_failure_ instead'                           \
 314           $(_sc_search_regexp)
 315
 316 # Prohibit the use of `...` in tests/.  Use $(...) instead.
 317 sc_prohibit_test_backticks:
 318         @prohibit='`' in_vc_files='^tests/'                             \
 319         halt='use $$(...), not `...` in tests/'                         \
 320           $(_sc_search_regexp)
 321
 322 # Programs like sort, ls, expr use PROG_FAILURE in place of EXIT_FAILURE.
 323 # Others, use the EXIT_CANCELED, EXIT_ENOENT, etc. macros defined in system.h.
 324 # In those programs, ensure that EXIT_FAILURE is not used by mistake.
 325 sc_some_programs_must_avoid_exit_failure:
 326         @grep -nw EXIT_FAILURE                                          \
 327             $$(git grep -El '[^T]_FAILURE|EXIT_CANCELED' src)           \
 328           | grep -vE '= EXIT_FAILURE|exit \(.* \?' | grep .             \
 329             && { echo '$(ME): do not use EXIT_FAILURE in the above'     \
 330                   1>&2; exit 1; } || :
 331
 332 # Exempt the contents of any usage function from the following.
 333 _continued_string_col_1 = \
 334 s/^usage .*?\n}//ms;/\\\n\w/ and print ("$$ARGV\n"),$$e=1;END{$$e||=0;exit $$e}
 335 # Ding any source file that has a continued string with an alphabetic in the
 336 # first column of the following line.  We prohibit them because they usually
 337 # trigger false positives in tools that try to map an arbitrary line number
 338 # to the enclosing function name.  Of course, very many strings do precisely
 339 # this, *when they are part of the usage function*.  That is why we exempt
 340 # the contents of any function named "usage".
 341 sc_prohibit_continued_string_alpha_in_column_1:
 342         @perl -0777 -ne '$(_continued_string_col_1)' \
 343             $$($(VC_LIST_EXCEPT) | grep '\.[ch]$$') \
 344           || { echo '$(ME): continued string with word in first column' \
 345                 1>&2; exit 1; } || :
 346 # Use this to list offending lines:
 347 # git ls-files |grep '\.[ch]$' | xargs \
 348 #   perl -n -0777 -e 's/^usage.*?\n}//ms;/\\\n\w/ and print "$ARGV\n"' \
 349 #     | xargs grep -A1 '\\$'|grep '\.[ch][:-][_a-zA-Z]'
 350
 351
 352 ###########################################################
 353 _p0 = \([^"'/]\|"\([^\"]\|[\].\)*"\|'\([^\']\|[\].\)*'
 354 _pre = $(_p0)\|[/][^"'/*]\|[/]"\([^\"]\|[\].\)*"\|[/]'\([^\']\|[\].\)*'\)*
 355 _pre_anchored = ^\($(_pre)\)
 356 _comment_and_close = [^*]\|[*][^/*]\)*[*][*]*/
 357 # help font-lock mode: '
 358
 359 # A sed expression that removes ANSI C and ISO C99 comments.
 360 # Derived from the one in GNU gettext's 'moopp' preprocessor.
 361 _sed_remove_comments =                                  \
 362 /[/][/*]/{                                              \
 363   ta;                                                   \
 364   :a;                                                   \
 365   s,$(_pre_anchored)//.*,\1,;                           \
 366   te;                                                   \
 367   s,$(_pre_anchored)/[*]\($(_comment_and_close),\1 ,;   \
 368   ta;                                                   \
 369   /^$(_pre)[/][*]/{                                     \
 370     s,$(_pre_anchored)/[*].*,\1 ,;                      \
 371     tu;                                                 \
 372     :u;                                                 \
 373     n;                                                  \
 374     s,^\($(_comment_and_close),,;                       \
 375     tv;                                                 \
 376     s,^.*$$,,;                                          \
 377     bu;                                                 \
 378     :v;                                                 \
 379   };                                                    \
 380   :e;                                                   \
 381 }
 382 # Quote all single quotes.
 383 _sed_rm_comments_q = $(subst ','\'',$(_sed_remove_comments))
 384 # help font-lock mode: '
 385
 386 _space_before_paren_exempt =? \\n\\$$
 387 _space_before_paren_exempt = \
 388   (^ *\#|\\n\\$$|%s\(to %s|(date|group|character)\(s\))
 389 # Ensure that there is a space before each open parenthesis in C code.
 390 sc_space_before_open_paren:
 391         @if $(VC_LIST_EXCEPT) | grep -l '\.[ch]$$' > /dev/null; then    \
 392           fail=0;                                                       \
 393           for c in $$($(VC_LIST_EXCEPT) | grep '\.[ch]$$'); do          \
 394             sed '$(_sed_rm_comments_q)' $$c 2>/dev/null                 \
 395               | grep -i '[[:alnum:]]('                                  \
 396               | grep -vE '$(_space_before_paren_exempt)'                \
 397               | grep . && { fail=1; echo "*** $$c"; };                  \
 398           done;                                                         \
 399           test $$fail = 1 &&                                            \
 400             { echo '$(ME): the above files lack a space-before-open-paren' \
 401                 1>&2; exit 1; } || :;                                   \
 402         else :;                                                         \
 403         fi
 404
 405 # Similar to the gnulib maint.mk rule for sc_prohibit_strcmp
 406 # Use STREQ_LEN or STRPREFIX rather than comparing strncmp == 0, or != 0.
 407 sc_prohibit_strncmp:
 408         @grep -nE '! *str''ncmp *\(|\<str''ncmp *\(.+\) *[!=]='         \
 409             $$($(VC_LIST_EXCEPT))                                       \
 410           | grep -vE ':# *define STR(N?EQ_LEN|PREFIX)\(' &&             \
 411           { echo '$(ME): use STREQ_LEN or STRPREFIX instead of str''ncmp' \
 412                 1>&2; exit 1; } || :
 413
 414 # Enforce recommended preprocessor indentation style.
 415 sc_preprocessor_indentation:
 416         @if cppi --version >/dev/null 2>&1; then                        \
 417           $(VC_LIST_EXCEPT) | grep '\.[ch]$$' | xargs cppi -a -c        \
 418             || { echo '$(ME): incorrect preprocessor indentation' 1>&2; \
 419                 exit 1; };                                              \
 420         else                                                            \
 421           echo '$(ME): skipping test $@: cppi not installed' 1>&2;      \
 422         fi
 423
 424 # THANKS.in is a list of name/email pairs for people who are mentioned in
 425 # commit logs (and generated ChangeLog), but who are not also listed as an
 426 # author of a commit.  Name/email pairs of commit authors are automatically
 427 # extracted from the repository.  As a very minor factorization, when
 428 # someone who was initially listed only in THANKS.in later authors a commit,
 429 # this rule detects that their pair may now be removed from THANKS.in.
 430 sc_THANKS_in_duplicates:
 431         @{ git log --pretty=format:%aN | sort -u;                       \
 432             cut -b-36 THANKS.in | sed '/^$$/d;s/  *$$//'; }             \
 433           | sort | uniq -d | grep .                                     \
 434             && { echo '$(ME): remove the above names from THANKS.in'    \
 435                   1>&2; exit 1; } || :
 436
 437 # Override the default Cc: used in generating an announcement.
 438 announcement_Cc_ = $(translation_project_), \
 439   coreutils@gnu.org, coreutils-announce@gnu.org
 440
 441 -include $(srcdir)/dist-check.mk
 442
 443 update-copyright-env = \
 444   UPDATE_COPYRIGHT_FORCE=1 \
 445   UPDATE_COPYRIGHT_USE_INTERVALS=2 \
 446   UPDATE_COPYRIGHT_MAX_LINE_LENGTH=79
 447
 448 # List syntax-check exemptions.
 449 exclude_file_name_regexp--sc_space_tab = \
 450   ^(tests/pr/|tests/misc/nl$$|gl/.*\.diff$$)
 451 exclude_file_name_regexp--sc_bindtextdomain = ^(gl/.*|lib/euidaccess-stat)\.c$$
 452 exclude_file_name_regexp--sc_unmarked_diagnostics =    ^build-aux/cvsu$$
 453 exclude_file_name_regexp--sc_error_message_uppercase = ^build-aux/cvsu$$
 454 exclude_file_name_regexp--sc_trailing_blank = ^tests/pr/
 455 exclude_file_name_regexp--sc_system_h_headers = \
 456   ^src/((system|copy)\.h|libstdbuf\.c)$$
 457
 458 _src = (false|lbracket|ls-(dir|ls|vdir)|tac-pipe|uname-(arch|uname))
 459 exclude_file_name_regexp--sc_require_config_h_first = \
 460   (^lib/buffer-lcm\.c|src/$(_src)\.c)$$
 461 exclude_file_name_regexp--sc_require_config_h = \
 462   $(exclude_file_name_regexp--sc_require_config_h_first)
 463
 464 exclude_file_name_regexp--sc_po_check = ^gl/
 465 exclude_file_name_regexp--sc_prohibit_always-defined_macros = \
 466   ^src/(seq|remove)\.c$$
 467 exclude_file_name_regexp--sc_prohibit_empty_lines_at_EOF = ^tests/pr/
 468 exclude_file_name_regexp--sc_program_name = ^(gl/.*|lib/euidaccess-stat)\.c$$
 469 exclude_file_name_regexp--sc_file_system = \
 470   NEWS|^(tests/init\.cfg|src/df\.c|tests/df/df-P)$$
 471 exclude_file_name_regexp--sc_prohibit_always_true_header_tests = \
 472   ^m4/stat-prog\.m4$$
 473 exclude_file_name_regexp--sc_prohibit_fail_0 = \
 474   (^.*/git-hooks/commit-msg|^tests/init\.sh|Makefile\.am|\.mk|.*\.texi)$$
 475 exclude_file_name_regexp--sc_prohibit_atoi_atof = ^lib/euidaccess-stat\.c$$
 476
 477 tbi_1 = ^tests/pr/|(^gl/lib/reg.*\.c\.diff|Makefile(\.am)?|\.mk|^man/help2man)$$
 478 tbi_2 = ^scripts/git-hooks/(pre-commit|pre-applypatch|applypatch-msg)$$
 479 exclude_file_name_regexp--sc_prohibit_tab_based_indentation = \
 480   $(tbi_1)|$(tbi_2)
 481
 482 exclude_file_name_regexp--sc_preprocessor_indentation = \
 483   ^(gl/lib/rand-isaac\.[ch]|gl/tests/test-rand-isaac\.c)$$
 484 exclude_file_name_regexp--sc_prohibit_stat_st_blocks = \
 485   ^(src/system\.h|tests/du/2g)$$
 486
 487 exclude_file_name_regexp--sc_prohibit_continued_string_alpha_in_column_1 = \
 488   ^src/(system\.h|od\.c|printf\.c)$$
 489
 490 exclude_file_name_regexp--sc_prohibit_test_backticks = \
 491   ^tests/(init\.sh|check\.mk|misc/stdbuf)$$
 492
 493 # Exempt test.c, since it's nominally shared, and relatively static.
 494 exclude_file_name_regexp--sc_prohibit_operator_at_end_of_line = \
 495   ^src/(ptx|test|head)\.c$$