542 lines
18 KiB
Makefile
542 lines
18 KiB
Makefile
# Maintainer checks for Automake. Requires GNU make.
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# Copyright (C) 2012-2017 Free Software Foundation, Inc.
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#
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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 2, or (at your option)
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# any later version.
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#
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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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#
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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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# We also have to take into account VPATH builds (where some generated
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# tests might be in '$(builddir)' rather than in '$(srcdir)'), TAP-based
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# tests script (which have a '.tap' extension) and helper scripts used
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# by other test cases (which have a '.sh' extension).
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xtests := $(shell \
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if test $(srcdir) = .; then \
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dirs=.; \
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else \
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dirs='$(srcdir) .'; \
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fi; \
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for d in $$dirs; do \
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for s in tap sh; do \
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ls $$d/t/ax/*.$$s $$d/t/*.$$s $$d/contrib/t/*.$$s 2>/dev/null; \
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done; \
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done | sort)
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xdefs = \
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$(srcdir)/t/ax/am-test-lib.sh \
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$(srcdir)/t/ax/test-lib.sh \
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$(srcdir)/t/ax/test-defs.in
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ams := $(shell find $(srcdir) -name '*.dir' -prune -o -name '*.am' -print)
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# Some simple checks, and then ordinary check. These are only really
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# guaranteed to work on my machine.
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syntax_check_rules = \
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$(sc_tests_plain_check_rules) \
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sc_diff_automake \
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sc_diff_aclocal \
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sc_no_brace_variable_expansions \
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sc_rm_minus_f \
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sc_no_for_variable_in_macro \
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sc_mkinstalldirs \
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sc_pre_normal_post_install_uninstall \
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sc_perl_no_undef \
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sc_perl_no_split_regex_space \
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sc_cd_in_backquotes \
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sc_cd_relative_dir \
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sc_perl_at_uscore_in_scalar_context \
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sc_perl_local \
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sc_AMDEP_TRUE_in_automake_in \
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sc_make_without_am_makeflags \
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sc_tests_no_source_defs \
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sc_tests_obsolete_variables \
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sc_tests_here_document_format \
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sc_tests_command_subst \
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sc_tests_no_run_make_redirect \
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sc_tests_exit_not_Exit \
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sc_tests_automake_fails \
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sc_tests_overriding_macros_on_cmdline \
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sc_tests_no_make_e \
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sc_tests_plain_sleep \
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sc_tests_ls_t \
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sc_m4_am_plain_egrep_fgrep \
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sc_tests_no_configure_in \
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sc_tests_PATH_SEPARATOR \
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sc_tests_logs_duplicate_prefixes \
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sc_tests_makefile_variable_order \
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sc_perl_at_substs \
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sc_unquoted_DESTDIR \
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sc_tabs_in_texi \
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sc_at_in_texi
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$(syntax_check_rules): bin/automake bin/aclocal
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maintainer-check: $(syntax_check_rules)
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.PHONY: maintainer-check $(syntax_check_rules)
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# Check that the list of tests given in the Makefile is equal to the
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# list of all test scripts in the Automake testsuite.
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maintainer-check: maintainer-check-list-of-tests
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# I'm a lazy typist.
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lint: maintainer-check
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.PHONY: lint
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# The recipes of syntax checks require a modern GNU grep.
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sc_sanity_gnu_grep:
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$(AM_V_GEN)grep --version | grep 'GNU grep' >/dev/null 2>&1 \
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&& ab=$$(printf 'a\nb') \
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&& test "$$(printf 'xa\nb\nc' | grep -Pzo 'a\nb')" = "$$ab" \
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|| { \
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echo "Syntax checks recipes require a modern GNU grep" >&2; \
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exit 1; \
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}
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.PHONY: sc_sanity_gnu_grep
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$(syntax_check_rules): sc_sanity_gnu_grep
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# These check avoids accidental configure substitutions in the source.
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# There are exactly 8 lines that should be modified from automake.in to
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# automake, and 9 lines that should be modified from aclocal.in to
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# aclocal.
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automake_diff_no = 8
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aclocal_diff_no = 9
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sc_diff_automake sc_diff_aclocal: in=$($*_in)
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sc_diff_automake sc_diff_aclocal: out=$($*_script)
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sc_diff_automake sc_diff_aclocal: sc_diff_% :
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@set +e; \
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in=$*-in.tmp out=$*-out.tmp diffs=$*-diffs.tmp \
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&& sed '/^#!.*[pP]rototypes/d' $(in) > $$in \
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&& sed '/^# BEGIN.* PROTO/,/^# END.* PROTO/d' $(out) > $$out \
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&& { diff -u $$in $$out > $$diffs; test $$? -eq 1; } \
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&& added=`grep -v '^+++ ' $$diffs | grep -c '^+'` \
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&& removed=`grep -v '^--- ' $$diffs | grep -c '^-'` \
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&& test $$added,$$removed = $($*_diff_no),$($*_diff_no) \
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|| { \
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echo "Found unexpected diffs between $(in) and $(out)"; \
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echo "Lines added: $$added" ; \
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echo "Lines removed: $$removed"; \
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cat $$diffs; \
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exit 1; \
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} >&2; \
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rm -f $$in $$out $$diffs
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# Expect no instances of '${...}'. However, $${...} is ok, since that
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# is a shell construct, not a Makefile construct.
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sc_no_brace_variable_expansions:
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@if grep -v '^ *#' $(ams) | grep -F '$${' | grep -F -v '$$$$'; then \
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echo "Found too many uses of '\$${' in the lines above." 1>&2; \
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exit 1; \
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else :; fi
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# Make sure 'rm' is called with '-f'.
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sc_rm_minus_f:
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@if grep -v '^#' $(ams) $(xtests) \
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| grep -vE '/(rm-f-probe\.sh|spy-rm\.tap|subobj-clean.*-pr10697\.sh):' \
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| grep -E '\<rm ([^-]|\-[^f ]*\>)'; \
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then \
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echo "Suspicious 'rm' invocation." 1>&2; \
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exit 1; \
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else :; fi
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# Never use something like "for file in $(FILES)", this doesn't work
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# if FILES is empty or if it contains shell meta characters (e.g. $ is
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# commonly used in Java filenames).
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sc_no_for_variable_in_macro:
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@if grep 'for .* in \$$(' $(ams) | grep -v '/Makefile\.am:'; then \
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echo 'Use "list=$$(mumble); for var in $$$$list".' 1>&2 ; \
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exit 1; \
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else :; fi
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# Make sure all invocations of mkinstalldirs are correct.
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sc_mkinstalldirs:
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@if grep -n 'mkinstalldirs' $(ams) \
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| grep -F -v '$$(mkinstalldirs)' \
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| grep -v '^\./Makefile.am:[0-9][0-9]*: *lib/mkinstalldirs \\$$'; \
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then \
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echo "Found incorrect use of mkinstalldirs in the lines above" 1>&2; \
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exit 1; \
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else :; fi
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# Make sure all calls to PRE/NORMAL/POST_INSTALL/UNINSTALL
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sc_pre_normal_post_install_uninstall:
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@if grep -E -n '\((PRE|NORMAL|POST)_(|UN)INSTALL\)' $(ams) | \
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grep -v ':##' | grep -v ': @\$$('; then \
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echo "Found incorrect use of PRE/NORMAL/POST_INSTALL/UNINSTALL in the lines above" 1>&2; \
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exit 1; \
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else :; fi
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# We never want to use "undef", only "delete", but for $/.
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sc_perl_no_undef:
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@if grep -n -w 'undef ' $(automake_in) | \
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grep -F -v 'undef $$/'; then \
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echo "Found 'undef' in the lines above; use 'delete' instead" 1>&2; \
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exit 1; \
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fi
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# We never want split (/ /,...), only split (' ', ...).
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sc_perl_no_split_regex_space:
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@if grep -n 'split (/ /' $(automake_in) $(acloca_in); then \
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echo "Found bad split in the lines above." 1>&2; \
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exit 1; \
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fi
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# Look for cd within backquotes
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sc_cd_in_backquotes:
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@if grep -n '^[^#]*` *cd ' $(automake_in) $(ams); then \
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echo "Consider using \$$(am__cd) in the lines above." 1>&2; \
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exit 1; \
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fi
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# Look for cd to a relative directory (may be influenced by CDPATH).
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# Skip some known directories that are OK.
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sc_cd_relative_dir:
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@if grep -n '^[^#]*cd ' $(automake_in) $(ams) | \
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grep -v 'echo.*cd ' | \
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grep -v 'am__cd =' | \
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grep -v '^[^#]*cd [./]' | \
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grep -v '^[^#]*cd \$$(top_builddir)' | \
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grep -v '^[^#]*cd "\$$\$$am__cwd' | \
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grep -v '^[^#]*cd \$$(abs' | \
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grep -v '^[^#]*cd "\$$(DESTDIR)'; then \
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echo "Consider using \$$(am__cd) in the lines above." 1>&2; \
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exit 1; \
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fi
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# Using @_ in a scalar context is most probably a programming error.
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sc_perl_at_uscore_in_scalar_context:
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@if grep -Hn '[^%@_A-Za-z0-9][_A-Za-z0-9]*[^) ] *= *@_' \
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$(automake_in) $(aclocal_in); then \
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echo "Using @_ in a scalar context in the lines above." 1>&2; \
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exit 1; \
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fi
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## Allow only few variables to be localized in automake and aclocal.
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sc_perl_local:
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@if egrep -v '^[ \t]*local \$$[_~]( *=|;)' \
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$(automake_in) $(aclocal_in) | \
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grep '^[ \t]*local [^*]'; then \
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echo "Please avoid 'local'." 1>&2; \
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exit 1; \
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fi
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# Don't let AMDEP_TRUE substitution appear in automake.in.
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sc_AMDEP_TRUE_in_automake_in:
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@if grep '@AMDEP''_TRUE@' $(automake_in); then \
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echo "Don't put AMDEP_TRUE substitution in automake.in" 1>&2; \
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exit 1; \
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fi
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# Recursive make invocations should always pass $(AM_MAKEFLAGS)
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# to $(MAKE), for portability to non-GNU make.
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sc_tests_make_without_am_makeflags:
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@if grep '^[^#].*(MAKE) ' $(ams) $(automake_in) \
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| grep -Fv '$$(AM_MAKEFLAGS)'; \
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then \
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echo 'Use $$(MAKE) $$(AM_MAKEFLAGS).' 1>&2; \
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exit 1; \
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fi
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# Look out for some obsolete variables.
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sc_tests_obsolete_variables:
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@vars=" \
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using_tap \
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am_using_tap \
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test_prefer_config_shell \
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original_AUTOMAKE \
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original_ACLOCAL \
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parallel_tests \
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am_parallel_tests \
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"; \
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seen=""; \
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for v in $$vars; do \
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if grep -E "\b$$v\b" $(xtests) $(xdefs); then \
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seen="$$seen $$v"; \
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fi; \
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done; \
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if test -n "$$seen"; then \
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for v in $$seen; do \
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case $$v in \
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parallel_tests|am_parallel_tests) v2=am_serial_tests;; \
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*) v2=am_$$v;; \
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esac; \
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echo "Variable '$$v' is obsolete, use '$$v2' instead." 1>&2; \
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done; \
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exit 1; \
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else :; fi
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# Tests should never call some programs directly, but only through the
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# corresponding variable (e.g., '$MAKE', not 'make'). This will allow
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# the programs to be overridden at configure time (for less brittleness)
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# or by the user at make time (to allow better testsuite coverage).
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sc_tests_plain_check_rules = \
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sc_tests_plain_egrep \
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sc_tests_plain_fgrep \
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sc_tests_plain_make \
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sc_tests_plain_perl \
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sc_tests_plain_automake \
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sc_tests_plain_aclocal \
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sc_tests_plain_autoconf \
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sc_tests_plain_autoupdate \
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sc_tests_plain_autom4te \
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sc_tests_plain_autoheader \
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sc_tests_plain_autoreconf
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toupper = $(shell echo $(1) | LC_ALL=C tr '[a-z]' '[A-Z]')
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$(sc_tests_plain_check_rules): sc_tests_plain_% :
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@# The leading ':' in the grep below is what is printed by the
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@# preceding 'grep -v' after the file name.
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@# It works here as a poor man's substitute for beginning-of-line
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@# marker.
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@if grep -v '^[ ]*#' $(xtests) \
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| $(EGREP) '(:|\bif|\bnot|[;!{\|\(]|&&|\|\|)[ ]*?$*\b'; \
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then \
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echo 'Do not run "$*" in the above tests.' \
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'Use "$$$(call toupper,$*)" instead.' 1>&2; \
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exit 1; \
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fi
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# Tests should only use END and EOF for here documents
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# (so that the next test is effective).
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sc_tests_here_document_format:
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@if grep '<<' $(xtests) | grep -Ev '\b(END|EOF)\b|\bcout <<'; then \
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echo 'Use here documents with "END" and "EOF" only, for greppability.' 1>&2; \
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exit 1; \
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fi
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# Our test case should use the $(...) POSIX form for command substitution,
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# rather than the older `...` form.
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# The point of ignoring text on here-documents is that we want to exempt
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# Makefile.am rules, configure.ac code and helper shell script created and
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# used by out shell scripts, because Autoconf (as of version 2.69) does not
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# yet ensure that $CONFIG_SHELL will be set to a proper POSIX shell.
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sc_tests_command_subst:
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@found=false; \
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scan () { \
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sed -n -e '/^#/d' \
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-e '/<<.*END/,/^END/b' -e '/<<.*EOF/,/^EOF/b' \
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-e 's/\\`/\\{backtick}/' \
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-e "s/[^\\]'\([^']*\`[^']*\)*'/'{quoted-text}'/g" \
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-e '/`/p' $$*; \
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}; \
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for file in $(xtests); do \
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res=`scan $$file`; \
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if test -n "$$res"; then \
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echo "$$file:$$res"; \
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found=true; \
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fi; \
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done; \
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if $$found; then \
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echo 'Use $$(...), not `...`, for command substitutions.' >&2; \
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exit 1; \
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fi
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# Tests should no longer call 'Exit', just 'exit'. That's because we
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# now have in place a better workaround to ensure the exit status is
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# transported correctly across the exit trap.
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sc_tests_exit_not_Exit:
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@if grep 'Exit' $(xtests) $(xdefs) | grep -Ev '^[^:]+: *#' | grep .; then \
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echo "Use 'exit', not 'Exit'; it's obsolete now." 1>&2; \
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exit 1; \
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fi
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# Guard against obsolescent uses of ./defs in tests. Now,
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# 'test-init.sh' should be used instead.
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sc_tests_no_source_defs:
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@if grep -E '\. .*defs($$| )' $(xtests); then \
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echo "Source 'test-init.sh', not './defs'." 1>&2; \
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exit 1; \
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fi
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# Invocation of 'run_make' should not have output redirections.
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sc_tests_no_run_make_redirect:
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@if grep -Pzo '.*(\$$MAKE|\brun_make)\b(.*(\\\n))*.*>.*' $(xtests); \
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then \
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echo 'Do not redirect stdout/stderr in "run_make" or "$$MAKE"' \
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'invocations,' >&2; \
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echo 'use "run_make {-E|-O|-M}" instead.' >&2; \
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exit 1; \
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fi
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# Use AUTOMAKE_fails when appropriate
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sc_tests_automake_fails:
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@if grep -v '^#' $(xtests) | grep '\$$AUTOMAKE.*&&.*exit'; then \
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echo 'Use AUTOMAKE_fails + grep to catch automake failures in the above tests.' 1>&2; \
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exit 1; \
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fi
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# "make -e" is brittle and unsafe, since it let *all* the environment
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# win over the macro definitions in the Makefiles. Since we offer
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# AM_MAKEFLAGS to allow the user to portably override macro definitions
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# from the command line in a safe way, we should encourage users to use
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# it.
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sc_tests_no_make_e:
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@if grep -E '\$$MAKE\b.* -[a-zA-Z0-9]*e' $(xtests); then \
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echo '"make -e" is brittle, use "run_make" instead.' 1>&2; \
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exit 1; \
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fi
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# Overriding a Makefile macro on the command line is not portable when
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# recursive targets are used. Better use an envvar. SHELL is an
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# exception, POSIX says it can't come from the environment. V, DESTDIR,
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# DISTCHECK_CONFIGURE_FLAGS and DISABLE_HARD_ERRORS are exceptions, too,
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# as package authors are urged not to initialize them anywhere.
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# Finally, 'exp' is used by some ad-hoc checks, where we ensure it's
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# ok to override it from the command line.
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sc_tests_overriding_macros_on_cmdline:
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# The first s/// tries to account for usages like "$MAKE || st=$?".
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# 'DISTCHECK_CONFIGURE_FLAGS' and 'exp' are allowed to contain whitespace in
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# their definitions, hence the more complex last three substitutions below.
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@if sed -e 's/ || .*//' -e 's/ && .*//' \
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-e 's/ DESTDIR=[^ ]*/ /' -e 's/ SHELL=[^ ]*/ /' \
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-e 's/ V=[^ ]*/ /' -e 's/ DISABLE_HARD_ERRORS=[^ ]*/ /' \
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-e "s/ DISTCHECK_CONFIGURE_FLAGS='[^']*'/ /" \
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-e 's/ DISTCHECK_CONFIGURE_FLAGS="[^"]*"/ /' \
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-e 's/ DISTCHECK_CONFIGURE_FLAGS=[^ ]/ /' \
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-e "s/ exp='[^']*'/ /" \
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-e 's/ exp="[^"]*"/ /' \
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-e 's/ exp=[^ ]/ /' \
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$(filter-out %/am-test-lib.sh,$(xtests)) \
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| grep '\$$MAKE .*='; then \
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echo 'Rewrite "$$MAKE foo=bar" as "run_make foo=bar" in the lines above,'; \
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echo 'it is more portable.'; \
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exit 1; \
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fi >&2
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@if grep 'SHELL=.*\$$MAKE' $(xtests); then \
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echo '$$MAKE ignores the SHELL envvar, use "run_make SHELL=$$SHELL"'; \
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echo 'in the above lines.'; \
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exit 1; \
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fi >&2
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# Prefer use of our 'is_newest' auxiliary script over the more hacky
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# idiom "test $(ls -1t new old | sed 1q) = new", which is both more
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# cumbersome and more fragile.
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sc_tests_ls_t:
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@if LC_ALL=C grep -E '\bls(\s+-[a-zA-Z0-9]+)*\s+-[a-zA-Z0-9]*t' \
|
|
$(xtests); then \
|
|
echo "Use 'is_newest' rather than hacks based on 'ls -t'" 1>&2; \
|
|
exit 1; \
|
|
fi
|
|
|
|
# Never use 'sleep 1' to create files with different timestamps.
|
|
# Use '$sleep' instead. Some file systems (e.g., Windows) have only
|
|
# a 2sec resolution.
|
|
sc_tests_plain_sleep:
|
|
@if grep -E '\bsleep +[12345]\b' $(xtests); then \
|
|
echo 'Do not use "sleep x" in the above tests. Use "$$sleep" instead.' 1>&2; \
|
|
exit 1; \
|
|
fi
|
|
|
|
# fgrep and egrep are not required by POSIX.
|
|
sc_m4_am_plain_egrep_fgrep:
|
|
@if grep -E '\b[ef]grep\b' $(ams) $(srcdir)/m4/*.m4; then \
|
|
echo 'Do not use egrep or fgrep in the above files,' \
|
|
'they are not portable.' 1>&2; \
|
|
exit 1; \
|
|
fi
|
|
|
|
# Prefer 'configure.ac' over the obsolescent 'configure.in' as the name
|
|
# for configure input files in our testsuite. The latter has been
|
|
# deprecated for several years (at least since autoconf 2.50).
|
|
sc_tests_no_configure_in:
|
|
@if grep -E '\bconfigure\\*\.in\b' $(xtests) $(xdefs) \
|
|
| grep -Ev '/backcompat.*\.(sh|tap):' \
|
|
| grep -Ev '/autodist-configure-no-subdir\.sh:' \
|
|
| grep -Ev '/(configure|help)\.sh:' \
|
|
| grep .; \
|
|
then \
|
|
echo "Use 'configure.ac', not 'configure.in', as the name" >&2; \
|
|
echo "for configure input files in the test cases above." >&2; \
|
|
exit 1; \
|
|
fi
|
|
|
|
# Rule to ensure that the testsuite has been run before. We don't depend
|
|
# on 'check' here, because that would be very wasteful in the common case.
|
|
# We could run "make check RECHECK_LOGS=" and avoid toplevel races with
|
|
# AM_RECURSIVE_TARGETS. Suggest keeping test directories around for
|
|
# greppability of the Makefile.in files.
|
|
sc_ensure_testsuite_has_run:
|
|
@if test ! -f '$(TEST_SUITE_LOG)'; then \
|
|
echo 'Run "env keep_testdirs=yes make check" before' \
|
|
'running "make maintainer-check"' >&2; \
|
|
exit 1; \
|
|
fi
|
|
.PHONY: sc_ensure_testsuite_has_run
|
|
|
|
# Ensure our warning and error messages do not contain duplicate 'warning:' prefixes.
|
|
# This test actually depends on the testsuite having been run before.
|
|
sc_tests_logs_duplicate_prefixes: sc_ensure_testsuite_has_run
|
|
@if grep -E '(warning|error):.*(warning|error):' t/*.log; then \
|
|
echo 'Duplicate warning/error message prefixes seen in above tests.' >&2; \
|
|
exit 1; \
|
|
fi
|
|
|
|
# Ensure variables are listed before rules in Makefile.in files we generate.
|
|
sc_tests_makefile_variable_order: sc_ensure_testsuite_has_run
|
|
@st=0; \
|
|
for file in `find t -name Makefile.in -print`; do \
|
|
latevars=`sed -n \
|
|
-e :x -e 's/#.*//' \
|
|
-e '/\\\\$$/{' -e N -e 'b x' -e '}' \
|
|
-e '# Literal TAB.' \
|
|
-e '1,/^ /d' \
|
|
-e '# Allow @ so we match conditionals.' \
|
|
-e '/^ *[a-zA-Z_@]\{1,\} *=/p' $$file`; \
|
|
if test -n "$$latevars"; then \
|
|
echo "Variables are expanded too late in $$file:" >&2; \
|
|
echo "$$latevars" | sed 's/^/ /' >&2; \
|
|
st=1; \
|
|
fi; \
|
|
done; \
|
|
test $$st -eq 0 || { \
|
|
echo 'Ensure variables are expanded before rules' >&2; \
|
|
exit 1; \
|
|
}
|
|
|
|
# Using ':' as a PATH separator is not portable.
|
|
sc_tests_PATH_SEPARATOR:
|
|
@if grep -E '\bPATH=.*:.*' $(xtests) ; then \
|
|
echo "Use '\$$PATH_SEPARATOR', not ':', in PATH definitions" \
|
|
"above." 1>&2; \
|
|
exit 1; \
|
|
fi
|
|
|
|
# Try to make sure all @...@ substitutions are covered by our
|
|
# substitution rule.
|
|
sc_perl_at_substs:
|
|
@if test `grep -E '^[^#]*@[A-Za-z_0-9]+@' bin/aclocal | wc -l` -ne 0; then \
|
|
echo "Unresolved @...@ substitution in aclocal" 1>&2; \
|
|
exit 1; \
|
|
fi
|
|
@if test `grep -E '^[^#]*@[A-Za-z_0-9]+@' bin/automake | wc -l` -ne 0; then \
|
|
echo "Unresolved @...@ substitution in automake" 1>&2; \
|
|
exit 1; \
|
|
fi
|
|
|
|
sc_unquoted_DESTDIR:
|
|
@if grep -E "[^\'\"]\\\$$\(DESTDIR" $(ams); then \
|
|
echo 'Suspicious unquoted DESTDIR uses.' 1>&2 ; \
|
|
exit 1; \
|
|
fi
|
|
|
|
sc_tabs_in_texi:
|
|
@if grep ' ' $(srcdir)/doc/automake.texi; then \
|
|
echo 'Do not use tabs in the manual.' 1>&2; \
|
|
exit 1; \
|
|
fi
|
|
|
|
sc_at_in_texi:
|
|
@if grep -E '([^@]|^)@([ ][^@]|$$)' $(srcdir)/doc/automake.texi; \
|
|
then \
|
|
echo 'Unescaped @.' 1>&2; \
|
|
exit 1; \
|
|
fi
|