More on problem with Angstrom SDK and Netbeans

File /home/cfo215/opt/angstrom/sysroots/cortexa8hf-vfp-neon-angstrom-linux-gnueabi/usr/include/c++/iostream From project Welcome_1 but there is an unresolved #include <features.h> in included /home/cfo215/opt/angstrom/sysroots/cortexa8hf-vfp-neon-angstrom-linux-gnueabi/usr/include/c++/arm-angstrom-linux-gnueabi/bits/os_defines.h
Analyzed system include paths:
/home/cfo215/opt/angstrom/sysroots/cortexa8hf-vfp-neon-angstrom-linux-gnueabi/usr/include/c++
Ctrl+Alt+Click to open include hierarchy