Thanks, > It's provided by clutter-devel-1.26.2-2.el7.x86_64: > /usr/lib64/pkgconfig/clutter-1.0.pc Ok. I did not have the ending .pc so now yum provides "*/clutter-1.0.pc" gives me the same as you. And in fact that file is on my machine under /usr/lib64/pkgconfig however when I do "pkg-config clutter-1.0" it returns nothing. Jerry