pkg-config version confusion

[Jeffrey Walton]

Hi Everyone,

I'm trying to track down an issue when AC_MSG_ERROR goes missing after
updating M4, Autoconf, Automake and Libtool. Stack Overflow says to
update Pkg-Config next (https://stackoverflow.com/q/8811381/608639).

When I check my Fedora 26 x86_64 machine:

    $ command -v pkg-config
    /bin/pkg-config
    $ pkg-config --version
    1.3.12

But when I check the pkg-config download at
https://pkgconfig.freedesktop.org/releases are it says the latest
version is 0.29.2 from MARCH 2017.

Does anyone know what is going on with the version information? Is
1.3.12 newer or older than 0.29.2?

Thanks in advance.