/usr/lib/pkgconfig/ACE_INet.pc is in libace-inet-dev 6.3.3+dfsg-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 8 9 10 11 | prefix=/usr
exec_prefix=/usr
libdir=/usr/lib
includedir=/usr/include
Name: ACE_INet
Description: ACE INet Client Protocols Library
Requires: ACE
Version: 6.3.3
Libs: -L${libdir} -lACE_INet
Cflags: -I${includedir}
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