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* ltconfig.in (echo): avoid shell error messages when we're

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testing for large command line support
	Reported by Axel Thimm <Axel.Thimm@physik.fu-berlin.de>
This commit is contained in:
Alexandre Oliva 1998-11-25 02:28:38 +00:00 committed by Alexandre Oliva
parent 3a823c4709
commit 752bc3a36a
2 changed files with 35 additions and 22 deletions

4
ChangeLog

@ -1,5 +1,9 @@
1998-11-24 Alexandre Oliva <oliva@dcc.unicamp.br>
* ltconfig.in (echo): avoid shell error messages when we're
testing for large command line support
Reported by Axel Thimm <Axel.Thimm@physik.fu-berlin.de>
* doc/PLATFORMS: updated last-tested release for platforms I've
got access to

53
ltconfig.in

@ -50,17 +50,20 @@ fi
# if CDPATH is set.
if test "${CDPATH+set}" = set; then CDPATH=; export CDPATH; fi
if echo_test_string=${echo_test_string-`sed 50q "$0"`}; then :
else
# some shells may not be able to cope with such a large variable
# I just hope they do not crash
echo_test_string=${echo_test_string-`sed 15q "$0"`} ||
echo_test_string=${echo_test_string-`sed 2q "$0"`} ||
echo_test_string=${echo_test_string-"test"}
echo ok, just ignore the messages above >&2
if test "X${echo_test_string+set}" != "Xset"; then
# find a string as large as possible, as long as the shell can cope with it
for cmd in 'sed 50q "$0"' 'sed 20q "$0"' 'sed 10q "$0"' 'sed 2q "$0"' 'echo test'; do
# expected sizes: less than 2Kb, 1Kb, 512 bytes, 16 bytes, ...
if (echo_test_string="`eval $cmd`") 2>/dev/null &&
echo_test_string="`eval $cmd`" &&
(test "X$echo_test_string" = "X$echo_test_string") 2>/dev/null; then
break
fi
done
fi
if test "X`($echo '\t') 2>/dev/null`" != 'X\t' ||
test "X`($echo "$echo_test_string")`" != X"$echo_test_string"; then
test "X`($echo "$echo_test_string") 2>/dev/null`" != X"$echo_test_string"; then
# The Solaris, AIX, and Digital Unix default echo programs unquote
# backslashes. This makes it impossible to quote backslashes using
# echo "$something" | sed 's/\\/\\\\/g'
@ -108,19 +111,25 @@ if test "X`($echo '\t') 2>/dev/null`" != 'X\t' ||
elif test "X`("$CONFIG_SHELL" "$0" --fallback-echo '\t') 2>/dev/null`" = 'X\t' &&
test "X`("$CONFIG_SHELL" "$0" --fallback-echo "$echo_test_string") 2>/dev/null`" = X"$echo_test_string"; then
echo="$CONFIG_SHELL $0 --fallback-echo"
elif test "X$echo_test_string" != "Xtest" &&
test "X$echo_test_string" != "X"; then
# maybe if we try with a smaller string...
if test "X$echo_test_string" != "X`sed 15q "$0"`"; then
echo_test_string="`sed 15q "$0"`" # less than 1Kb
else
echo_test_string="test" # really small
fi
export echo_test_string
exec "${ORIGINAL_CONFIG_SHELL}" "$0" ${1+"$@"}
else
# Oops. We lost completely, so just stick with echo.
echo=echo
# maybe with a smaller string...
prev=:
for cmd in 'echo test' 'sed 2q "$0"' 'sed 10q "$0"' 'sed 20q "$0"' 'sed 50q "$0"'; do
if (test "X$echo_test_string" = "X`eval $cmd`") 2>/dev/null; then
break
fi
prev="$cmd"
done
if test "$prev" != 'sed 50q "$0"'; then
echo_test_string=`eval $prev`
export echo_test_string
exec "${ORIGINAL_CONFIG_SHELL}" "$0" ${1+"$@"}
else
# Oops. We lost completely, so just stick with echo.
echo=echo
fi
fi
fi
fi
@ -763,7 +772,7 @@ if test "$compiler_c_o" = no && test "$need_locks" != no; then
echo "$ac_t$hard_links" 1>&6
$rm conftest*
if test "$hard_links" = no; then
echo "*** WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe"
echo "*** WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2
need_locks=warn
fi
else