[En-Nut-Discussion] Stdlib.h unsetenv declaration error

[Gregor Mackenzie]

Good morning all - progress update

Initially, I changed line 177 of stdlib.h from
      void	 _EXFUN(unsetenv,(const int *__string)); 
to
       int	 _EXFUN(unsetenv,(const char *__string));

which appeared to have cured the problem by matching the declaration 
types 

to the function itself in setenv.c. I am unsure of the validity of this 
solution so I will put it aside just now.



Following the advice of John Paul Arul and Ole Reinhardt yesterday (Vol 
91, issue 15), I downloaded the lastest ethernut (4.8.9) and Yagarto 
(gcc 4.6.0), disabled the PSOIX unsetenv (C-runtime (target specific) --
> environment --> posix compatible unsetenv) and attempted to build.



I changed all references of arm-elf- to arm-none-eabi- in the make 
files that I could find, as per the instruction on the Yagarto website 
and attempted to make the project.



The make all command keeps failing to build the project because of 
unused variable warnings in various files. I am in the process of 
locating each error, locating the unused variable and any subsequent 
occurance in the routine and commenting it out. I do not think that 
this is the expected behaviour of the system.

I know that Nut/OS is a good system and designed to work with Yagarto, 
therefore think that I am doing something wrong. Could someone point 
out my mistake please.



Many thanks



Gregor