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* lib/autoconf/programs.m4 (_AC_FEATURE_CHECK_LENGTH): Make the

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best tool so far counter rely on the tool path variable name to
avoid checks for one tool being affected by the results of running
the length check on a previous tool.
This commit is contained in:
Gary V. Vaughan 2004-04-20 19:16:34 +00:00
parent 0d06ecdc76
commit 265fcd3986
2 changed files with 11 additions and 3 deletions
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5
ChangeLog
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@ -1,5 +1,10 @@
2004-04-20 Gary V. Vaughan <gary@gnu.org>
* lib/autoconf/programs.m4 (_AC_FEATURE_CHECK_LENGTH): Make the
best tool so far counter rely on the tool path variable name to
avoid checks for one tool being affected by the results of running
the length check on a previous tool.
* lib/autoconf/programs.m4 (_AC_PROG_GREP): Take an additional
match expression argument, as different greps have different
regular expression flavours.

9
lib/autoconf/programs.m4
View File

@ -468,12 +468,15 @@ m4_define([_AC_FEATURE_CHECK_LENGTH],
cp "$tmp/conftest.in" "$tmp/conftest.nl"
echo '$4' >> "$tmp/conftest.nl"
$3 < "$tmp/conftest.nl" >"$tmp/conftest.out" || break
diff "$tmp/conftest.out" "$tmp/conftest.nl" >/dev/null 2>&1 || break
diff "$tmp/conftest.out" "$tmp/conftest.nl" >/dev/null 2>&1 || break
ac_count=`expr $ac_count + 1`
if test $ac_count -gt ${ac_max-0}; then
if test $ac_count -gt ${$1_max-0}; then
# Best one so far, save it but keep looking for a better one
$2="$$1"
ac_max=$ac_count
dnl # Using $1_max so that each tool feature checked gets its
dnl # own variable. Don't reset it otherwise the implied search
dnl # for best performing tool in a list breaks down.
$1_max=$ac_count
fi
# 10*(2^10) chars as input seems more than enough
test $ac_count -gt 10 && break