/usr/lib/x86_64-linux-gnu/pkgconfig/lept.pc is in libleptonica-dev 1.75.3-3.
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=${prefix}/include/leptonica
Name: leptonica
Description: An open source C library for efficient image processing and image analysis operations
Version: 1.75.3
Libs: -L${libdir} -llept
Libs.private: -lz -lpng -ljpeg -lgif -ltiff -lwebp
Cflags: -I${includedir}
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