configure: Update for autoconf 2.71

alsa-project / alsa-lib

The Advanced Linux Sound Architecture (ALSA) - library

GNU Lesser General Public License v2.1

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Open phodina opened 1 year ago

phodina commented 1 year ago

Hi, this is an update due to Alpine Linux packaging only autoconf-2.71-r2 so that the https://github.com/alsa-project/alsa-lib/pull/308 could be tested.