Re: lua.pc pkg-config file

[steve donovan <steve.j.donovan@...>]

On Thu, Mar 26, 2015 at 12:24 PM, Nicola Fontana <ntd@entidi.it> wrote:
> pkg-config is just a piece of C code (just like Lua) that makes life
> (much) easier to packagers, period. When you are cross-compiling (and
> guess what I'm doing right now?) it is not usefull, it is essential!

It is an unusually awkward piece of C code:

$ ldd $(which pkg-config)  (taking out linux-specific stuff)
    libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0
(0x00007fa31b16a000)
    libpopt.so.0 => /lib/x86_64-linux-gnu/libpopt.so.0 (0x00007fa31af5e000)
    libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007fa31a959000)
    libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007fa31a73b000)

that Glib dependency is the nasty one, a very Gnome-centric thing. To
build pkg-config, you need Glib. To build Glib, you need pkg-config

If you look at the end of 'man pkg-config' you'll see that it has been
re-written a number of times. I suspect that Havoc Pennington was
having too much fun.

I did a very functional clone in 500 lines of C, when testing llib,
with absolutely no dynamic dependencies.  I imagine a smart person
could do a Lua version in about that as well, but do note that the
manual lies about some important things.

steve d.