Comment 44 for bug 336634

I'm sorry, but this fix is broken. The vanilla pkg-config behavior for Requires.private is correct, and this just makes it act like Libs.private, which is wrong because it breaks Cflags handling.

In the example given above, rpm/yum would not allow you to remove libXext-devel if libXmu-devel requires pkgconfig(xext). It would do that if the pkg-config --print-requires patch also walked Requires.private. I opened bug 426106 that has patches to fix that. After all, you actually need the headers from libXext-devel installed even if you're not linking to libXext.a. So, just making pkg-config skip Requires.private unless --static is used is wrong.

The issue of whether the .pc file should be required to be installed under certain conditions should be handled separately. That's what the freedesktop bug is about. Incidentally, I have more patches to address that issue, but that's orthogonal to this.