required=python
. ./defs || Exit 1
-cat >>configure.in <<EOF
-AM_PATH_PYTHON(, [echo 'GREP ME' >&2])
+cat >>configure.in <<'EOF'
+# $PYTHON is supposed to be properly set in ACTION-IF-TRUE.
+AM_PATH_PYTHON(, [$PYTHON -V >py-version 2>&1])
AC_OUTPUT
EOF
$AUTOCONF
$AUTOMAKE --add-missing
-./configure 2>stderr || { cat stderr >&2; Exit 1; }
-cat stderr >&2
-grep 'GREP ME' stderr
+./configure
+grep '^Python [0-9]\.[0-9][0-9]*\.[0-9]' py-version
: