/usr/lib/pkgconfig/lv2.pc is in lv2-dev 1.12.0~dfsg0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 | prefix=/usr
includedir=/usr/include
Name: LV2
Version: 1.12.0
Description: An extensible audio plugin interface.
Cflags: -I${includedir}
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