[Buildroot] [PATCH] lftp: new package.

Arnaud Rébillout rebillout at syscom.ch
Thu Nov 21 16:17:39 UTC 2013

Hi Thomas,

thanks for your comments, I'll send a second revision with everything fixed.

> Can you detail the posix_fallocate() problem you've seen? Maybe we can
> solve it in a different/nicer way.

Here is a piece of the m4 file which describes the macro 
(lftp-4.4.10/m4/lftp.m4, line 246):

> AC_DEFINE(HAVE_POSIX_FALLOCATE, 1, [Define if you have a working 
> posix_fallocate()])
>    dnl * Old glibcs have broken posix_fallocate(). Make sure not to 
> use it.
>    dnl * It may also be broken in AIX.

In order to test that, the configure script compiles and runs a piece of 
C code.

There's two problems with that.

First, the code won't compile because uClibc doesn't define 
posix_fallocate. To solve that, we can fix the m4 macro with a #define.
It's quite easy, though I don't know exactly how to do it properly.

But after that comes the second problem: the test is supposed to run 
this piece of code. How are we supposed to run cross-compiled code on 
the host ?
I can imagine it's a typical problem, but I don't know how it's supposed 
to be handled.


Arnaud Rébillout
/Développeur software/

SYSCOM Instruments SA,
Rue de l’Industrie 21,
1450 Ste-Croix, SUISSE
Tel : +41 (0) 24 455 44 11
Fax : +41 (0) 24 454 45 60
Visit us at www.syscom.ch <http://www.syscom.ch>
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