if test "x$development" != xtrue && test "x$development" != xfalse; then :
as_fn_error $? "Invalid value for \$development, got \"$development\", expecting \"true\" or \"false\"." "$LINENO" 5
if test "x$development" != xtrue && test "x$development" != xfalse; then :
as_fn_error $? "Invalid value for \$development, got \"$development\", expecting \"true\" or \"false\"." "$LINENO" 5