Re: circular dependency between glib and pkg-config

[Allin Cottrell <cottrell wfu edu>]

On Tue, 27 Sep 2011, Stuart Ambler wrote:

> It seems that the pkg-config README in [Ryan Lortie's] 
> message tried to address that, but sorry, I didn't see what 
> zlib had to do with the dependency of glib on pkg-config. 
> ("To build pkg-config, you need glib installed already. 
> Note that glib build-depends on pkg-config, but you can just 
> set the corresponding environment variables (ZLIB_LIBS, 
> ZLIB_CFLAGS are the only needed ones when this is written) 
> to build it.")

Presumably the point is that zlib is the only prerequisite 
library that is handled by pkg-config in the glib build (as in
pkg-config --libs zlib, pkg-config --cflags zlib). The effect 
of the calls to pkg-config is to define ZLIB_LIBS and 
ZLIB_CFLAGS, but these could equally well be set manually.

Allin Cottrell