[lwip-users] Detailed description of modifications LwIP 1.3.x -> LwIP 1.4.x

[Marco Jakobs]

Dear all,

after putting huge work in giving LwIP 1.4.0RC1 a try, i'm actually 
totally demotivated. The changes seems to be so huge, every 10 compiler 
errors i'm getting rid of will produce hunderts more.

I'm using LwIP 1.3.2 on an AT91SAM7X512 with Rowley Compiler. But 
replacing the LwIP stack, making the documented changes to sys_arch.c 
and changing the netconn_recv and netconn_accept calls in my application 
actually won't help here. I find me left with actually >250 compiler 
errors in the project and LwIP project. Some examples:

- Uncounteable errors in core routines: "undefined reference to 
'lwip_ntohs' "

- Counts of lines (i.e. in tcp_in.c, line 745): "undefined reference to 
'tcp timer needed' "

- undefined references to 'sys_timeout', 'sys_untimeout' and lots of 
more ...

and much, much more ...


I don't actually understand why there are so many huge changes which are 
makeing it nearly impossible to upgrade from 1.3 to 1.4 ... will there 
be any kind of detailed documentation like "what exactly has to be done 
for the upgrade" (detailed means not what is written in "UPGRADING") ... 
giving "normal" users a chance to see some light at the end of the tunnel?

I love LwIP, but actually i see my stuck with 1.3 forever ... would be a 
pity if LwIP would become a project which can only be handled by the 
developers and a few cracks who are in the depth of the stack.

Just my sad two cents ...

Marco