Description of problem:

I'm trying to compile a program using plplot. As a first step, I run 
$ pkg-config --libs plplotd 

just to know the libs that are needed. The result is:
-lplplotd -lqhull -lcsironn -ldl -lm -lcsirocsa -lz -lfreetype

But I have found that in my system some of these libs do not exist. In
particular libqhull.so and libfreetype.so

I installed plplot-devel through yum and, as these libraries are required to
compile plplot programs, I suppose that yum should install them as dependencies.

The involved packages are: qhull-devel and freetype-devel
The solution is to add:

Requires: qhull-devel
Requires: freetype-devel

in the "%package devel" part of your spec file. Some other subpackages can be
affected as rpm can compute automatically the dependencies for the binaries but
no for the -devel packages.

Version-Release number of selected component (if applicable):
plplot-devel-5.6.1-2

How reproducible:
Always

Steps to Reproduce:
1. 
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Actual results:


Expected results:


Additional info: