Bug#1025831: vpb-driver: FTBFS due to missing threads.h

I am sponsoring the fix for this. debdiff is attached.diff -Nru vpb-driver-4.2.61/debian/changelog vpb-driver-4.2.61/debian/changelog --- vpb-driver-4.2.61/debian/changelog 2022-12-10 00:42:50.0 +0100 +++ vpb-driver-4.2.61/debian/changelog 2022-12-10 10:49:17.0 +0100 @@ -1,3 +1,1

Bug#1025831: vpb-driver: FTBFS due to missing threads.h

Source: vpb-driver Version: 4.2.61-1.3 Severity: serious Tags: ftbfs Dear Maintainer, The package has a ftbfs on all arch: ``` ../../../include/vt/tonegen.h: In static member function ‘static void ToneGen::mutex_cleanup(void*)’: ../../../include/vt/tonegen.h:527:13: error: ‘pthread_mutex_unlock