cross-compile and autotools howto missing

[Erik de Castro Lopo]

Matěj Týč wrote:

> Thank you for your reply,
> I have read the article and I have realized two things:
>  1. That guy

That guys is me :-).

> invokes pkg-config in the makefile instead of using pkg-config
> macros in configure.ac (This is a very bad practice, for instance the user
> doesn't get warning if a package is missing)

That was for a simple example. When I'm using the autotools I
use pkg-config in the configure script.

For a full example, using autotools, grab this:

    http://www.mega-nerd.com/tmp/libsndfile-1.0.18pre23b.tar.gz

which cross compiles from Linux to windows quite happily with

    ./configure --host=i586-mingw32msvc --target=i586-pc-mingw32msvc \
        --build=i686-pc-linux-gnu

> The
> pkg-config autoconf macro should set the libdir according to $prefix or
> $host that are known.

That would require the configure script to pass that information
to pkg-config.

> I think that this is not implemented at this moment.

Exactly.

> What do you think?

I would rather use what works now, than wait for something that
may never be implemented.

Erik
-- 
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Erik de Castro Lopo
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"Every method you use to prevent or find bugs leaves a residue of
subtler bugs against which those methods are ineffectual."
-- Bruce Beizer's Pesticide Paradox