# We require that the shell can correctly trap EXIT when 'set -e' is in
# effect (OSF1/Tru64 sh failed to do so, see commit v1.10b-52-g9fe8259).
#
+# We want to able to define shell aliases with the same name of shell
+# builtins.
+#
# We also prefer shells that, when 'set -x' is in effect, do not also
# redirect traces upon stderr redirections. For example,
# $ set -x; echo x 2>file
[(set -x; P=1 true 2>&3) 3>&1 2>/dev/null | grep P=1],
[am_score=9], [])
+ echo 'alias false=echo' > conftest-alias.sh
+ echo 'false && test "$(false 97)" = 97' >> conftest-alias.sh
+ _AM_CHECK_SHELL_FEATURE([$1],
+ [supports alias named like shell builtins],
+ [. ./conftest-alias.sh],
+ [rm -f conftest-alias.sh],
+ [rm -f conftest-alias.sh; am_score=1; break])
+
break
done])