problem compiling Hostap against the latest libnl... (prototypes don't match)
proski at gnu.org
Tue Feb 23 13:00:12 EST 2010
On Sun, 2010-02-21 at 22:31 +0100, Frantisek Rysanek wrote:
> > Do you have any particular reason for using the current snapshot of
> > libnl instead of a proper release?
> reason #1: there doesn't seem to be a proper release. The homepage of
> libnl refers me to the GIT repo. There don't seem to be any releases,
> just an older development snapshot called 1.0-pre6. I've seen 1.1
> mentioned in some README or .config, but such a tarball or GIT tag is
> nowhere to be found... The snapshot that I'm using is two months old -
> doesn't sound like a road under construction, maybe it's as close to
> the "latest release" as it gets :-)
The libnl download page is a mess. The 1.1 release does exist in the
wild, but not on the libnl page. There is also a commit in the libnl
git repository called "1.1 release", although it's not tagged.
I'll try to contact the maintainer of libnl and ask to clean up all that
> I didn't go into such detail as to dissect how much the version (age)
> of libnl has to match the latest developments of the nl80211 -
> whether there are some shared headers that are evolving quickly,
> or if perhaps the libnl is just a thin generic "access shim" to the
> nl80211, and thus the recent developments in nl80211 (kernel space)
> don't really require the latest libnl (user-space library)...
If you look for references to CONFIG_LIBNL20 in the sources for
wpa_supplicant and hostapd, you'll see that there is absolutely no new
functionality enabled when CONFIG_LIBNL20 is defined.
> I was wondering if I should just use the "wext" driver, instead of
> "nl802.11". The "wext" interface should be stable. I just have some
> doubt how long that interface to Linux Wireless will stay fully
> functional (before it gets stale / broken).
If you want to "future-proof" your distro so badly that you resort to
git snapshots of libraries, you should really use nl80211 whenever
possible. wext is in process of being obsoleted.
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