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Sort sysd-rules-patterns by descending pattern length.
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@ -1,5 +1,11 @@
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2013-06-17 Roland McGrath <roland@hack.frob.com>
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* scripts/sysd-rules.awk: Sort sysd_rules_patterns by descending
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length of target pattern, then descending length of dependency pattern.
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* configure.in (AWK): Require gawk 3.1.2 or newer.
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* manual/install.texi (Tools for Compilation): Say that we do.
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* configure: Regenerated.
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* Makerules [inhibit-sysdep-asm] (check-inhibit-asm): Variable removed.
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($(common-objpfx)sysd-rules): Replace shell logic with running ...
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* scripts/sysd-rules.awk: ... this new script.
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2
configure
vendored
2
configure
vendored
@ -4993,7 +4993,7 @@ $as_echo_n "checking version of $AWK... " >&6; }
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ac_prog_version=`$AWK --version 2>&1 | sed -n 's/^.*GNU Awk[^0-9]*\([0-9][0-9.]*\).*$/\1/p'`
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case $ac_prog_version in
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'') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
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[3-9].*)
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3.1.[2-9]*|3.[2-9]*|[4-9]*)
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ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
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*) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
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@ -986,7 +986,7 @@ AC_CHECK_PROG_VER(SED, sed, --version,
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SED=: aux_missing="$aux_missing sed")
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AC_CHECK_PROG_VER(AWK, gawk, --version,
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[GNU Awk[^0-9]*\([0-9][0-9.]*\)],
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[[3-9].*], critic_missing="$critic_missing gawk")
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[3.1.[2-9]*|3.[2-9]*|[4-9]*], critic_missing="$critic_missing gawk")
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AC_CHECK_TOOL(NM, nm, false)
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@ -379,10 +379,11 @@ understand all the tags used in the document, and the installation
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mechanism for the info files is not present or works differently.
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@item
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GNU @code{awk} 3.0, or higher
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GNU @code{awk} 3.1.2, or higher
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@code{Awk} is used in several places to generate files.
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@code{gawk} 3.0 is known to work.
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@code{awk} is used in several places to generate files.
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Some @code{gawk} extensions are used, including the @code{asorti}
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function, which was introduced in version 3.1.2 of @code{gawk}.
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@item
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Perl 5
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@ -14,6 +14,25 @@ BEGIN {
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nsysdirs = split(config_sysdirs, sysdirs);
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npatterns = split(sysd_rules_patterns, patterns);
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# Each element of $(sysd-rules-patterns) is a pair TARGET:DEP.
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# They are no in particular order. We need to sort them so that
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# the longest TARGET is first, and, among elements with the same
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# TARGET, the longest DEP is first.
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for (i = 1; i <= npatterns; ++i) {
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if (split(patterns[i], td, ":") != 2) {
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msg = "bad sysd-rules-patterns element '" patterns[i] "'";
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print msg > "/dev/stderr";
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exit 2;
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}
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target_order = sprintf("%09d", npatterns + 1 - length(td[1]));
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dep_order = sprintf("%09d", npatterns - length(td[2]));
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sort_patterns[target_order SUBSEP dep_order] = patterns[i];
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}
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asorti(sort_patterns, map_patterns);
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for (i in map_patterns) {
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patterns[i] = sort_patterns[map_patterns[i]];
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}
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for (sysdir_idx = 1; sysdir_idx <= nsysdirs; ++sysdir_idx) {
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dir = sysdirs[sysdir_idx];
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if (dir !~ /^\//) dir = "$(..)" dir;
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@ -28,10 +47,7 @@ BEGIN {
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o = suffixes[suffix_idx];
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for (pattern_idx = 1; pattern_idx <= npatterns; ++pattern_idx) {
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pattern = patterns[pattern_idx];
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if (split(pattern, td, ":") != 2) {
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print "bad sysd-rules-patterns element '" pattern "'" > "/dev/stderr";
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exit 2;
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}
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split(pattern, td, ":");
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target_pattern = td[1];
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dep_pattern = td[2];
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if (target_pattern == "%") {
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