[Tinyos-help] avr-gcc cannot locate sys/types.h

[Greg Hackmann]

Elvar Ólafsson wrote:
> Hi everyone.
> 
> I have a small problem with my tiny os program. This program tries to 
> include sys/types.h but the compilation fails since avr-gcc cannot 
> locate the header file. How can I force avr-gcc to include files from 
> /usr/include/?

You generally can't do this.  avr-gcc uses a specialized implementation 
of libc called avr-libc which contains only a subset of the 
functionality in the standard GNU libc.  Header files in /usr/include 
could declare functions or structures that conflict with the avr-libc 
definitions, or that actually aren't present in avr-libc at all.

Note that TinyOS automatically #includes a number of system header 
files, including the header file that defines the standard integer types 
(uint8_t, int16_t etc.)  It's pretty rare that you'll ever need to 
explicitly #include a file outside of the TinyOS tree.

Greg Hackmann