cat /usr/local/libdata/pkgconfig/jsoncpp.pc libdir=@CMAKE_INSTALL_FULL_LIBDIR@ includedir=@CMAKE_INSTALL_FULL_INCLUDEDIR@ it's similar to https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=215390#c3
Created attachment 186503 [details] patch
I forgot to bump portrevision.
*** This bug has been marked as a duplicate of bug 222104 ***