/usr/share/pkgconfig/libclc.pc is in libclc-dev 0.2.0+git20150813-2.
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 | includedir=/usr/include
libexecdir=/usr/lib/clc
Name: libclc
Description: Library requirements of the OpenCL C programming language
Version: 0.2.0
Cflags: -I${includedir}
Libs: -L${libexecdir}
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