mirror of
https://github.com/coreutils/coreutils.git
synced 2024-11-27 12:04:25 +08:00
d3227eeb90
Add a rule to ding any source file that has a continued string with a word in the first column of the following line. Those tend to trigger malfunction in tools that try to map an arbitrary line number to an enclosing function name. Of course, very many strings do precisely this, *when they are part of the usage function*. So we exempt the body of each usage function. * src/dircolors.c (main): Separate a long, continued string into two separately-quoted parts. * src/od.c (decode_one_format): Likewise. (decode_one_format, main): Move a space from end of preceding line to the beginning of the continued line. * src/tr.c (unquote, string2_extend, validate): Likewise. * src/seq.c (main): Split in two and use string concatenation. * src/stat.c (default_format): Use a mix of techniques. * cfg.mk (sc_prohibit_continued_string_alpha_in_column_1): New rule. Exempt three files in src: system.h, od.c, printf.c.
435 lines
16 KiB
Makefile
435 lines
16 KiB
Makefile
# Customize maint.mk -*- makefile -*-
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# Copyright (C) 2003-2012 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Used in maint.mk's web-manual rule
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manual_title = Core GNU utilities
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# Use the direct link. This is guaranteed to work immediately, while
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# it can take a while for the faster mirror links to become usable.
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url_dir_list = http://ftp.gnu.org/gnu/$(PACKAGE)
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# Tests not to run as part of "make distcheck".
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local-checks-to-skip = \
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sc_texinfo_acronym
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# Tools used to bootstrap this package, used for "announcement".
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bootstrap-tools = autoconf,automake,gnulib,bison
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# Now that we have better tests, make this the default.
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export VERBOSE = yes
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old_NEWS_hash = f2fae8556f651da99e503a1d1a841f83
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# Add an exemption for sc_makefile_at_at_check.
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_makefile_at_at_check_exceptions = ' && !/^cu_install_program =/'
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# Our help-version script is in a slightly different location.
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_hv_file ?= $(srcdir)/tests/misc/help-version
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# Ensure that the list of O_ symbols used to compute O_FULLBLOCK is complete.
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dd = $(srcdir)/src/dd.c
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sc_dd_O_FLAGS:
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@rm -f $@.1 $@.2
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@{ echo O_FULLBLOCK; echo O_NOCACHE; \
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perl -nle '/^ +\| (O_\w*)$$/ and print $$1' $(dd); } | sort > $@.1
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@{ echo O_NOFOLLOW; perl -nle '/{"[a-z]+",\s*(O_\w+)},/ and print $$1' \
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$(dd); } | sort > $@.2
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@diff -u $@.1 $@.2 || diff=1 || diff=; \
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rm -f $@.1 $@.2; \
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test "$$diff" \
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&& { echo '$(ME): $(dd) has inconsistent O_ flag lists'>&2; \
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exit 1; } || :
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# Ensure that dd's definition of LONGEST_SYMBOL stays in sync
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# with the strings from the two affected variables.
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dd_c = $(srcdir)/src/dd.c
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sc_dd_max_sym_length:
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ifneq ($(wildcard $(dd_c)),)
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@len=$$( (sed -n '/conversions\[\] =$$/,/^};/p' $(dd_c);\
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sed -n '/flags\[\] =$$/,/^};/p' $(dd_c) ) \
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|sed -n '/"/s/^[^"]*"\([^"]*\)".*/\1/p' \
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| wc --max-line-length); \
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max=$$(sed -n '/^#define LONGEST_SYMBOL /s///p' $(dd_c) \
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|tr -d '"' | wc --max-line-length); \
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if test "$$len" = "$$max"; then :; else \
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echo 'dd.c: LONGEST_SYMBOL is not longest' 1>&2; \
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exit 1; \
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fi
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endif
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# Many m4 macros names once began with `jm_'.
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# On 2004-04-13, they were all changed to start with gl_ instead.
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# Make sure that none are inadvertently reintroduced.
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sc_prohibit_jm_in_m4:
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@grep -nE 'jm_[A-Z]' \
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$$($(VC_LIST) m4 |grep '\.m4$$'; echo /dev/null) && \
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{ echo '$(ME): do not use jm_ in m4 macro names' \
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1>&2; exit 1; } || :
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# Ensure that each root-requiring test is run via the "check-root" rule.
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sc_root_tests:
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@if test -d tests \
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&& grep check-root tests/Makefile.am>/dev/null 2>&1; then \
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t1=sc-root.expected; t2=sc-root.actual; \
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grep -nl '^ *require_root_$$' \
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$$($(VC_LIST) tests) |sed s,tests/,, |sort > $$t1; \
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sed -n '/^root_tests =[ ]*\\$$/,/[^\]$$/p' \
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$(srcdir)/tests/Makefile.am \
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| sed 's/^ *//;/^root_tests =/d' \
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| tr -s '\012\\' ' ' | fmt -1 | sort > $$t2; \
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diff -u $$t1 $$t2 || diff=1 || diff=; \
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rm -f $$t1 $$t2; \
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test "$$diff" \
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&& { echo 'tests/Makefile.am: missing check-root action'>&2; \
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exit 1; } || :; \
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fi
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# Create a list of regular expressions matching the names
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# of files included from system.h. Exclude a couple.
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.re-list:
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@sed -n '/^# *include /s///p' $(srcdir)/src/system.h \
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| grep -Ev 'sys/(param|file)\.h' \
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| sed 's/ .*//;;s/^["<]/^# *include [<"]/;s/\.h[">]$$/\\.h[">]/' \
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> $@-t
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@mv $@-t $@
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define gl_trap_
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Exit () { set +e; (exit $$1); exit $$1; }; \
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for sig in 1 2 3 13 15; do \
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eval "trap 'Exit $$(expr $$sig + 128)' $$sig"; \
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done
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endef
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# Files in src/ should not include directly any of
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# the headers already included via system.h.
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sc_system_h_headers: .re-list
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@if test -f $(srcdir)/src/system.h; then \
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trap 'rc=$$?; rm -f .re-list; exit $$rc' 0; \
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$(gl_trap_); \
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grep -nE -f .re-list \
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$$($(VC_LIST_EXCEPT) | grep '^\($(srcdir)/\)\?src/') \
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&& { echo '$(ME): the above are already included via system.h'\
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1>&2; exit 1; } || :; \
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fi
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sc_sun_os_names:
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@grep -nEi \
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'solaris[^[:alnum:]]*2\.(7|8|9|[1-9][0-9])|sunos[^[:alnum:]][6-9]' \
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$$($(VC_LIST_EXCEPT)) && \
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{ echo '$(ME): found misuse of Sun OS version numbers' 1>&2; \
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exit 1; } || :
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ALL_RECURSIVE_TARGETS += sc_check-AUTHORS
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sc_check-AUTHORS:
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@$(MAKE) -s -C src _sc_check-AUTHORS
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# Look for lines longer than 80 characters, except omit:
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# - program-generated long lines in diff headers,
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# - tests involving long checksum lines, and
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# - the 'pr' test cases.
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LINE_LEN_MAX = 80
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FILTER_LONG_LINES = \
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/^[^:]*\.diff:[^:]*:@@ / d; \
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\|^[^:]*tests/misc/sha[0-9]*sum[-:]| d; \
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\|^[^:]*tests/pr/|{ \|^[^:]*tests/pr/pr-tests:| !d; };
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sc_long_lines:
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@files=$$($(VC_LIST_EXCEPT)) \
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halt='line(s) with more than $(LINE_LEN_MAX) characters; reindent'; \
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for file in $$files; do \
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expand $$file | grep -nE '^.{$(LINE_LEN_MAX)}.' | \
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sed -e "s|^|$$file:|" -e '$(FILTER_LONG_LINES)'; \
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done | grep . && { msg="$$halt" $(_sc_say_and_exit) } || :
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# Option descriptions should not start with a capital letter
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# One could grep source directly as follows:
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# grep -E " {2,6}-.*[^.] [A-Z][a-z]" $$($(VC_LIST_EXCEPT) | grep '\.c$$')
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# but that would miss descriptions not on the same line as the -option.
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ALL_RECURSIVE_TARGETS += sc_option_desc_uppercase
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sc_option_desc_uppercase:
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@$(MAKE) -s -C src all_programs
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@$(MAKE) -s -C man $@
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# Ensure all man/*.[1x] files are present
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ALL_RECURSIVE_TARGETS += sc_man_file_correlation
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sc_man_file_correlation:
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@$(MAKE) -s -C src all_programs
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@$(MAKE) -s -C man $@
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# Ensure that the end of each release's section is marked by two empty lines.
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sc_NEWS_two_empty_lines:
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@sed -n 4,/Noteworthy/p $(srcdir)/NEWS \
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| perl -n0e '/(^|\n)\n\n\* Noteworthy/ or exit 1' \
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|| { echo '$(ME): use two empty lines to separate NEWS sections' \
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1>&2; exit 1; } || :
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# Perl-based tests used to exec perl from a #!/bin/sh script.
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# Now they all start with #!/usr/bin/perl and the portability
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# infrastructure is in tests/Makefile.am. Make sure no old-style
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# script sneaks back in.
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sc_no_exec_perl_coreutils:
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@if test -f $(srcdir)/tests/Coreutils.pm; then \
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grep '^exec *\$$PERL.*MCoreutils' $$($(VC_LIST) tests) && \
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{ echo 1>&2 '$(ME): found anachronistic Perl-based tests'; \
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exit 1; } || :; \
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fi
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# Don't use "readlink" or "readlinkat" directly
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sc_prohibit_readlink:
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@prohibit='\<readlink(at)? \(' \
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halt='do not use readlink(at); use via xreadlink or areadlink*' \
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$(_sc_search_regexp)
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# Don't use address of "stat" or "lstat" functions
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sc_prohibit_stat_macro_address:
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@prohibit='\<l?stat '':|&l?stat\>' \
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halt='stat() and lstat() may be function-like macros' \
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$(_sc_search_regexp)
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# Ensure that date's --help output stays in sync with the info
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# documentation for GNU strftime. The only exception is %N,
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# which date accepts but GNU strftime does not.
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extract_char = sed 's/^[^%][^%]*%\(.\).*/\1/'
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sc_strftime_check:
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@if test -f $(srcdir)/src/date.c; then \
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grep '^ %. ' $(srcdir)/src/date.c | sort \
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| $(extract_char) > $@-src; \
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{ echo N; \
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info libc date calendar format 2>/dev/null|grep '^ `%.'\'\
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| $(extract_char); } | sort > $@-info; \
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if test $$(stat --format %s $@-info) != 2; then \
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diff -u $@-src $@-info || exit 1; \
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else \
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echo '$(ME): skipping $@: libc info not installed' 1>&2; \
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fi; \
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rm -f $@-src $@-info; \
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fi
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# Indent only with spaces.
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sc_prohibit_tab_based_indentation:
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@prohibit='^ * ' \
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halt='TAB in indentation; use only spaces' \
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$(_sc_search_regexp)
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# The SEE ALSO section of a man page should not be terminated with
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# a period. Check the first line after each "SEE ALSO" line in man/*.x:
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sc_prohibit_man_see_also_period:
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@grep -nB1 '\.$$' $$($(VC_LIST_EXCEPT) | grep 'man/.*\.x$$') \
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| grep -A1 -e '-\[SEE ALSO\]' | grep '\.$$' && \
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{ echo '$(ME): do not end "SEE ALSO" section with a period' \
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1>&2; exit 1; } || :
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# Don't use "indent-tabs-mode: nil" anymore. No longer needed.
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sc_prohibit_emacs__indent_tabs_mode__setting:
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@prohibit='^( *[*#] *)?indent-tabs-mode:' \
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halt='use of emacs indent-tabs-mode: setting' \
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$(_sc_search_regexp)
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# Ensure that each file that contains fail=1 also contains fail=0.
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# Otherwise, setting file=1 in the environment would make tests fail
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# unexpectedly.
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sc_prohibit_fail_0:
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@prohibit='\<fail=0\>' \
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halt='fail=0 initialization' \
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$(_sc_search_regexp)
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# The mode part of a setfacl -m option argument must be three bytes long.
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# I.e., an argument of user:bin:rw or user:bin:r will make Solaris 10's
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# setfacl reject it with: "Unrecognized character found in mode field".
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# Use hyphens to give it a length of 3: "...:rw-" or "...:r--".
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sc_prohibit_short_facl_mode_spec:
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@prohibit='\<setfacl .*-m.*:.*:[rwx-]{1,2} ' \
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halt='setfacl mode string length < 3; extend with hyphen(s)' \
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$(_sc_search_regexp)
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# Ensure that "stdio--.h" is used where appropriate.
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sc_require_stdio_safer:
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@if $(VC_LIST_EXCEPT) | grep -l '\.[ch]$$' > /dev/null; then \
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files=$$(grep -l '\bfreopen \?(' $$($(VC_LIST_EXCEPT) \
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| grep '\.[ch]$$')); \
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test -n "$$files" && grep -LE 'include "stdio--.h"' $$files \
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| grep . && \
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{ echo '$(ME): the above files should use "stdio--.h"' \
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1>&2; exit 1; } || :; \
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else :; \
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fi
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sc_prohibit_perl_hash_quotes:
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@prohibit="\{'[A-Z_]+' *[=}]" \
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halt="in Perl code, write \$$hash{KEY}, not \$$hash{'K''EY'}" \
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$(_sc_search_regexp)
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# Prefer xnanosleep over other less-precise sleep methods
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sc_prohibit_sleep:
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@prohibit='\<(nano|u)?sleep \(' \
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halt='prefer xnanosleep over other sleep interfaces' \
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$(_sc_search_regexp)
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# Use print_ver_ (from init.cfg), not open-coded $VERBOSE check.
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sc_prohibit_verbose_version:
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@prohibit='test "\$$VERBOSE" = yes && .* --version' \
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halt='use the print_ver_ function instead...' \
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$(_sc_search_regexp)
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# Use framework_failure_, not the old name without the trailing underscore.
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sc_prohibit_framework_failure:
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@prohibit='\<framework_''failure\>' \
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halt='use framework_failure_ instead' \
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$(_sc_search_regexp)
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# Exempt the contents of any usage function from the following.
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_continued_string_col_1 = \
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s/^usage .*?\n}//ms;/\\\n\w/ and print ("$$ARGV\n"),$$e=1;END{$$e||=0;exit $$e}
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# Ding any source file that has a continued string with an alphabetic in the
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# first column of the following line. We prohibit them because they usually
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# trigger false positives in tools that try to map an arbitrary line number
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# to the enclosing function name. Of course, very many strings do precisely
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# this, *when they are part of the usage function*. That is why we exempt
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# the contents of any function named "usage".
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sc_prohibit_continued_string_alpha_in_column_1:
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@perl -0777 -ne '$(_continued_string_col_1)' \
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$$($(VC_LIST_EXCEPT) | grep '\.[ch]$$') \
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|| { echo '$(ME): continued string with word in first column' \
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1>&2; exit 1; } || :
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# Use this to list offending lines:
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# git ls-files |grep '\.[ch]$' | xargs \
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# perl -n -0777 -e 's/^usage.*?\n}//ms;/\\\n\w/ and print "$ARGV\n"' \
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# | xargs grep -A1 '\\$'|grep '\.[ch][:-][_a-zA-Z]'
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###########################################################
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_p0 = \([^"'/]\|"\([^\"]\|[\].\)*"\|'\([^\']\|[\].\)*'
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_pre = $(_p0)\|[/][^"'/*]\|[/]"\([^\"]\|[\].\)*"\|[/]'\([^\']\|[\].\)*'\)*
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_pre_anchored = ^\($(_pre)\)
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_comment_and_close = [^*]\|[*][^/*]\)*[*][*]*/
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# help font-lock mode: '
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# A sed expression that removes ANSI C and ISO C99 comments.
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# Derived from the one in GNU gettext's 'moopp' preprocessor.
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_sed_remove_comments = \
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/[/][/*]/{ \
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ta; \
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:a; \
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s,$(_pre_anchored)//.*,\1,; \
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te; \
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s,$(_pre_anchored)/[*]\($(_comment_and_close),\1 ,; \
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ta; \
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/^$(_pre)[/][*]/{ \
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s,$(_pre_anchored)/[*].*,\1 ,; \
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tu; \
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:u; \
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n; \
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s,^\($(_comment_and_close),,; \
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tv; \
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s,^.*$$,,; \
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bu; \
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:v; \
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}; \
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:e; \
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}
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# Quote all single quotes.
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_sed_rm_comments_q = $(subst ','\'',$(_sed_remove_comments))
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# help font-lock mode: '
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_space_before_paren_exempt =? \\n\\$$
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_space_before_paren_exempt = \
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(^ *\#|\\n\\$$|%s\(to %s|(date|group|character)\(s\))
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# Ensure that there is a space before each open parenthesis in C code.
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sc_space_before_open_paren:
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@if $(VC_LIST_EXCEPT) | grep -l '\.[ch]$$' > /dev/null; then \
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fail=0; \
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for c in $$($(VC_LIST_EXCEPT) | grep '\.[ch]$$'); do \
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sed '$(_sed_rm_comments_q)' $$c 2>/dev/null \
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| grep -i '[[:alnum:]](' \
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| grep -vE '$(_space_before_paren_exempt)' \
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| grep . && { fail=1; echo "*** $$c"; }; \
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done; \
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test $$fail = 1 && \
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{ echo '$(ME): the above files lack a space-before-open-paren' \
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1>&2; exit 1; } || :; \
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else :; \
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fi
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# Similar to the gnulib maint.mk rule for sc_prohibit_strcmp
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# Use STREQ_LEN or STRPREFIX rather than comparing strncmp == 0, or != 0.
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sc_prohibit_strncmp:
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@grep -nE '! *str''ncmp *\(|\<str''ncmp *\(.+\) *[!=]=' \
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$$($(VC_LIST_EXCEPT)) \
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| grep -vE ':# *define STR(N?EQ_LEN|PREFIX)\(' && \
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{ echo '$(ME): use STREQ_LEN or STRPREFIX instead of str''ncmp' \
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1>&2; exit 1; } || :
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# Enforce recommended preprocessor indentation style.
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sc_preprocessor_indentation:
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@if cppi --version >/dev/null 2>&1; then \
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$(VC_LIST_EXCEPT) | grep '\.[ch]$$' | xargs cppi -a -c \
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|| { echo '$(ME): incorrect preprocessor indentation' 1>&2; \
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exit 1; }; \
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else \
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echo '$(ME): skipping test $@: cppi not installed' 1>&2; \
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fi
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# Override the default Cc: used in generating an announcement.
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announcement_Cc_ = $(translation_project_), \
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coreutils@gnu.org, coreutils-announce@gnu.org
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-include $(srcdir)/dist-check.mk
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update-copyright-env = \
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UPDATE_COPYRIGHT_USE_INTERVALS=1 \
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UPDATE_COPYRIGHT_MAX_LINE_LENGTH=79
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# List syntax-check exemptions.
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exclude_file_name_regexp--sc_space_tab = \
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^(tests/pr/|tests/misc/nl$$|gl/.*\.diff$$)
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exclude_file_name_regexp--sc_bindtextdomain = ^(gl/.*|lib/euidaccess-stat)\.c$$
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exclude_file_name_regexp--sc_unmarked_diagnostics = ^build-aux/cvsu$$
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exclude_file_name_regexp--sc_error_message_uppercase = ^build-aux/cvsu$$
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exclude_file_name_regexp--sc_trailing_blank = ^tests/pr/
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exclude_file_name_regexp--sc_system_h_headers = \
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^src/((system|copy)\.h|libstdbuf\.c)$$
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_src = (false|lbracket|ls-(dir|ls|vdir)|tac-pipe|uname-(arch|uname))
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exclude_file_name_regexp--sc_require_config_h_first = \
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(^lib/buffer-lcm\.c|src/$(_src)\.c)$$
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exclude_file_name_regexp--sc_require_config_h = \
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$(exclude_file_name_regexp--sc_require_config_h_first)
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exclude_file_name_regexp--sc_po_check = ^gl/
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exclude_file_name_regexp--sc_prohibit_always-defined_macros = \
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^src/(seq|remove)\.c$$
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exclude_file_name_regexp--sc_prohibit_empty_lines_at_EOF = ^tests/pr/
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exclude_file_name_regexp--sc_program_name = ^(gl/.*|lib/euidaccess-stat)\.c$$
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exclude_file_name_regexp--sc_file_system = \
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NEWS|^(tests/init\.cfg|src/df\.c|tests/misc/df-P)$$
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exclude_file_name_regexp--sc_prohibit_always_true_header_tests = \
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^m4/stat-prog\.m4$$
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exclude_file_name_regexp--sc_prohibit_fail_0 = \
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(^scripts/git-hooks/commit-msg|^tests/init\.sh|Makefile\.am|\.mk)$$
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exclude_file_name_regexp--sc_prohibit_atoi_atof = ^lib/euidaccess-stat\.c$$
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tbi_1 = ^tests/pr/|(^gl/lib/reg.*\.c\.diff|Makefile(\.am)?|\.mk|^man/help2man)$$
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tbi_2 = ^scripts/git-hooks/(pre-commit|pre-applypatch|applypatch-msg)$$
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exclude_file_name_regexp--sc_prohibit_tab_based_indentation = \
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$(tbi_1)|$(tbi_2)
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exclude_file_name_regexp--sc_preprocessor_indentation = \
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^(gl/lib/rand-isaac\.[ch]|gl/tests/test-rand-isaac\.c)$$
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exclude_file_name_regexp--sc_prohibit_stat_st_blocks = \
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^(src/system\.h|tests/du/2g)$$
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exclude_file_name_regexp--sc_prohibit_continued_string_alpha_in_column_1 = \
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^src/(system\.h|od\.c|printf\.c)$$
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