io.h not found in library project

Hi,

when I include io.h from a managed library project it can't be found.

make all

Compiling SmbUtils.c...

nios2-elf-gcc -xc -MD -c -I.. -I -I/cygdrive/c/Programme/NiosII/v51/components/altera_nios2/HAL/inc -I/cygdrive/c/Programme/NiosII/v51/components/altera_hal/HAL/inc -D__hal__ -pipe -DALT_RELEASE -O2 -g -I"/cygdrive/h/Proj/Libs/Nios/SmbLib/include" -I"/cygdrive/h/Proj/Libs/Nios/NiosLib/include" -I"/cygdrive/h/Proj/Libs/Nios/include" -I"/cygdrive/c/Programme/NiosII/v51/components/altera_nios2/HAL/inc" -Wall -o obj/src/SmbUtils.o ../src/SmbUtils.c

Creating libSmbLib.a...

rm -rf -f libSmbLib.a

nios2-elf-ar -src libSmbLib.a obj/src/SmbUtils.o

Build completed

It is strange, that the same path is automatically inserted by the IDE and it does not work. What is the reason for this behavior?

best regards,

jackie