Comment # 1 on bug 938600 from Dominique Leuenberger

Problem confirmed in Snapshot 20170525

> cat /usr/lib64/pkgconfig/exiv2.pc
prefix=/usr
exec_prefix=${prefix}
libdir=${prefix}/lib
includedir=${prefix}/include

> rpm -q libexiv2-devel 
libexiv2-devel-0.25-3.4.x86_64