/usr/lib/x86_64-linux-gnu/pkgconfig/globus-xio.pc is in libglobus-xio-dev 5.11-2.
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 11 | prefix=/usr
exec_prefix=${prefix}
libdir=${prefix}/lib/x86_64-linux-gnu
includedir=${prefix}/include/globus
Name: globus-xio
Description: Globus Toolkit - XIO Library
Version: 5.11
Requires.private: globus-common >= 14
Libs: -L${libdir} -lglobus_xio
Cflags: -I${includedir}
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