/usr/lib/pkgconfig/libunshield.pc is in libunshield-dev 0.6-2.
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=${prefix}
libdir=${exec_prefix}/lib
includedir=${prefix}/include
Name: libunshield
Description: Library to extract CAB files from InstallShield installers
Version: 0.6
Libs: -L${libdir} -lunshield
Cflags: -I${includedir}
|