/usr/lib/x86_64-linux-gnu/pkgconfig/xneur.pc is in libxneur-dev 0.17.0-2.
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 8 9 10 | prefix=/usr
exec_prefix=${prefix}
libdir=${prefix}/lib/x86_64-linux-gnu
includedir=${prefix}/include
Name: xneur
Description: XNeur library
Version: 0.17.0
Libs: -L${prefix}/lib/x86_64-linux-gnu -lxneur -lpcre -lenchant -lpthread -ldl
Cflags: -I${prefix}/include
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