no readahead with uClibc

[fperrad]

I use ljsyscall on an embedded linux built with Buildroot.
It works well when I use an ARM Linaro toolchain.
But when I build my toolchain with Buildroot : gcc 4.7.3 & uClibc 0.9.33.2,
ljsyscall fails at load time because uClibc has not readahead C function.

see output with v0.9

# uname -a
Linux buildroot 3.10.7 #1 Mon Apr 21 17:25:33 CEST 2014 armv5tejl GNU/Linux
# luajit
LuaJIT 2.0.3 -- Copyright (C) 2005-2014 Mike Pall. http://luajit.org/
JIT: ON fold cse dce fwd dse narrow loop abc sink fuse
> s = require 'syscall'
/usr/share/lua/5.1/syscall/linux/c.lua:519: Unable to resolve symbol
stack traceback:
    [C]: in function '__index'
    /usr/share/lua/5.1/syscall/linux/c.lua:519: in main chunk
    [C]: in function 'require'
    /usr/share/lua/5.1/syscall.lua:39: in main chunk
    [C]: in function 'require'
    stdin:1: in main chunk
    [C]: at 0x00009ac0
> 

[justincormack]

This is fixed in git head, but not in the 0.9 release that is in buildroot. I should make a 0.10 release and update buildroot in the next few days as there are quite a few relevant fixes (eg MIPS fixes) as well as the fixes for uClibc. If you could test git head on your platforms that would be really helpful.

[fperrad]

Work fine with e1261b5
Thanks.

[justincormack]

Thanks, will do a new release shortly.

[fperrad]

Ok with release v0.10