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206cad2b - build: Revert the revert, and use Sergey Poznyakoff's fix instead.

build: Revert the revert, and use Sergey Poznyakoff's fix instead. Sergey's fix is at <https://debbugs.gnu.org/cgi/bugreport.cgi?msg=17;bug=73620> = <https://lists.gnu.org/archive/html/bug-libtool/2024-10/msg00008.html>.