+1998-11-07 Alexandre Oliva <oliva@dcc.unicamp.br>
+
+ * ltconfig.in: add --falback-echo, to be used if everything else
+ fails. The tests now check the behavior of $echo for very large
+ strings, because some echo commands would just core dump (e.g.,
+ Solaris' printf). If too large strings fail, smaller ones are
+ tested.
+ (ltecho): arrange that, if the --fallback-echo method is selected,
+ echo will be defined in the libtool script so as to re-run itself,
+ not ltconfig
+ * ltmain.in: add --fallback-echo
+ (qecho) ensure that, if --falback-echo is being used, qecho is
+ defined with the full pathname of the libtool script
+
1998-11-07 Thomas Tanner <tanner@gmx.de>
* mdemo/main.c: removed hardcoded library names; link against -lm
if test "X$1" = X--no-reexec; then
# Discard the --no-reexec flag, and continue.
shift
+elif test "X$1" = X--fallback-echo; then
+ # used as fallback echo
+ shift
+ cat <<EOF
+$*
+EOF
+ exit 0
elif test "X`($echo '\t') 2>/dev/null`" = 'X\t'; then
# Yippee, $echo works!
:
# if CDPATH is set.
if test "${CDPATH+set}" = set; then CDPATH=; export CDPATH; fi
-if test "X`($echo '\t') 2>/dev/null`" != 'X\t'; then
+echo_test_string=${echo_test_string-`cat "$0"`} || {
+ # some shells may not be able to cope with such a large variable
+ # I just hope they do not crash
+ echo ok, just ignore the message above >&2
+ echo_test_string=""
+}
+if test "X`($echo '\t') 2>/dev/null`" != 'X\t' ||
+ test "X`($echo "$echo_test_string")`" != 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'
#
# So, first we look for a working echo in the user's PATH.
+
IFS="${IFS= }"; save_ifs="$IFS"; IFS="${IFS}:"
for dir in $PATH /usr/ucb; do
- if test -f $dir/echo && test "X`($dir/echo '\t') 2>/dev/null`" = 'X\t'; then
+ if test -f $dir/echo &&
+ test "X`($dir/echo '\t') 2>/dev/null`" = 'X\t' &&
+ test "X`($dir/echo "$echo_test_string") 2>/dev/null`" = X"$echo_test_string"; then
echo="$dir/echo"
break
fi
if test "X$echo" = Xecho; then
# We didn't find a better echo, so look for alternatives.
- if test "X`(print -r '\t') 2>/dev/null`" = 'X\t'; then
+ if test "X`(print -r '\t') 2>/dev/null`" = 'X\t' &&
+ test "X`(print -r "$echo_test_string") 2>/dev/null`" = X"$echo_test_string"; then
# This shell has a builtin print -r that does the trick.
echo='print -r'
elif test -f /bin/ksh && test "X$CONFIG_SHELL" != X/bin/ksh; then
# If we have ksh, try running ltconfig again with it.
+ ORIGINAL_CONFIG_SHELL="${CONFIG_SHELL-/bin/sh}"
+ export ORIGINAL_CONFIG_SHELL
CONFIG_SHELL=/bin/ksh
export CONFIG_SHELL
exec "$CONFIG_SHELL" "$0" --no-reexec ${1+"$@"}
else
# Try using printf.
echo='printf %s\n'
- if test "X`($echo '\t') 2>/dev/null`" != 'X\t'; then
+ if test "X`($echo '\t') 2>/dev/null`" = 'X\t' &&
+ test "X`($echo "$echo_test_string") 2>/dev/null`" = X"$echo_test_string"; then
+ # Cool, printf works
+ :
+ elif test "X`("$ORIGINAL_CONFIG_SHELL" "$0" --fallback-echo '\t') 2>/dev/null`" = 'X\t' &&
+ test "X`("$ORIGINAL_CONFIG_SHELL" "$0" --fallback-echo "$echo_test_string") 2>/dev/null`" = X"$echo_test_string"; then
+ CONFIG_SHELL="$ORIGINAL_CONFIG_SHELL"
+ export CONFIG_SHELL
+ SHELL="$CONFIG_SHELL"
+ export SHELL
+ echo="$CONFIG_SHELL $0 --fallback-echo"
+ elif test "X`("$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" != "Xsmaller" &&
+ test "X$echo_test_string" != "X"; then
+ # maybe if we try with a smaller string...
+ if test "X$echo_test_string" != "X`sed 15q "$0"`"; then
+ if test "X$echo_test_string" != "X`sed 50q "$0"`"; then
+ echo_test_string="`sed 50q "$0"`" # about 2Kb
+ else
+ echo_test_string="`sed 15q "$0"`" # less than 1Kb
+ fi
+ else
+ echo_test_string="smaller" # really small
+ fi
+ export echo_test_string
+ exec "${ORIGINAL_CONFIG_SHELL}" "$0" ${1+"$@"}
+ else
# Oops. We lost completely, so just stick with echo.
echo=echo
fi
# Copy echo and quote the copy, instead of the original, because it is
# used later.
ltecho="$echo"
+if test "X$ltecho" = "X$CONFIG_SHELL $0 --fallback-echo"; then
+ ltecho="$CONFIG_SHELL \$0 --fallback-echo"
+fi
LTSHELL="$SHELL"
# Only quote variables if we're using ltmain.sh.
esac
done
+ case "$ltecho" in
+ *'\$0 --fallback-echo"')
+ ltecho=`$echo "X$ltecho" |
+ $Xsed -e 's/\\\\\\\$0 --fallback-echo"$/$0 --fallback-echo"/'`
+ ;;
+ esac
+
trap "$rm \"$ofile\"; exit 1" 1 2 15
echo "creating $ofile"
$rm "$ofile"
if test "X$1" = X--no-reexec; then
# Discard the --no-reexec flag, and continue.
shift
+elif test "X$1" = X--fallback-echo; then
+ # used as fallback echo
+ shift
+ cat <<EOF
+$*
+EOF
+ exit 0
elif test "X`($echo '\t') 2>/dev/null`" = 'X\t'; then
# Yippee, $echo works!
:
finalize_command=`$echo "X$finalize_command" | $Xsed -e "$sed_quote_subst"`
# Quote $echo for shipping.
- qecho=`$echo "X$echo" | $Xsed -e "$sed_quote_subst"`
+ if test "X$echo" = "X$SHELL $0 --fallback-echo"; then
+ case "$0" in
+ /* | [A-Za-z]:[/\\]*) qecho="$SHELL $0 --fallback-echo";;
+ *) qecho="$SHELL `pwd`/$0 --fallback-echo";;
+ esac
+ qecho=`$echo "X$qecho" | $Xsed -e "$sed_quote_subst"`
+ else
+ qecho=`$echo "X$echo" | $Xsed -e "$sed_quote_subst"`
+ fi
# Only actually do things if our run command is non-null.
if test -z "$run"; then
projects / thirdparty / libtool.git / commitdiff
