pkg-config fails on -Cflags options

[dave erickson]

lapack.pc blas.pc lapack-atlas.pc blas-atlas.pc on 15.04

Generate right output for --libs command flags

$ pkg-config --libs lapack-atlas
-L/usr/lib/atlas-base/atlas -llapack

but not for Cflags flags

$ pkg-config --cflags lapack-atlas

[dave erickson (daveerickson)]

I note that the Fedora version does not segment the atlas into lapack and blas libraries and the pkg-config works just fine. This is not an ATLAS problem but a package bug.