/usr/lib/x86_64-linux-gnu/pkgconfig/goa-backend-1.0.pc is in libgoa-backend-1.0-dev 3.10.3-0ubuntu1.
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 11 | prefix=/usr
exec_prefix=${prefix}
libdir=${prefix}/lib/x86_64-linux-gnu
includedir=${prefix}/include
Name: Goa Backends
Description: Backends for GNOME Online Accounts Library
Version: 3.10.3
Requires: goa-1.0 gtk+-3.0
Libs: -L${libdir} -lgoa-backend-1.0
Cflags: -I${includedir}/goa-1.0
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