libusb compiling

Xaver
Hi i rookie in linux compiling. I have a linux on my PC with toolchain
installed and also i have a ARM based on EP9315 with linux on it. First
step in ununderstanding of cross-compile was a compile of nano i do that
with:
./configure
CC=/usr/local/arm/4.3.4-armv4t-arm920t-eabi/usr/bin/arm-linux-gcc
CPP='/usr/local/arm/4.3.4-armv4t-arm920t-eabi/usr/bin/arm-linux-gcc -E'
--prefix=/home/zaa/armprojects/nano1 --target=armv4t-arm920t-eabi
–host=i686-linux-gnu
make install
copy result on arm and all runs OK.
Now i want to compile libusb. I try it with
./configure
CC=/usr/local/arm/4.3.4-armv4t-arm920t-eabi/usr/bin/arm-linux-gcc
CPP='/usr/local/arm/4.3.4-armv4t-arm920t-eabi/usr/bin/arm-linux-gcc -E'
--prefix=/home/zaa/FTDI/FTDI2/libusbdes --host=arm-linux
make install
copy library on arm /usr/bin directory. Write a simple program with using
libusb.h compile it with dynamic linking. Copy programm to arm but when i
launch programm it return segmentation fault =(

davef
Just curious why you do :

--target=armv4t-arm920t-eabi
–host=i686-linux-gnu

for nano 

then 

--host=arm-linux

for libusb.

I am not a cross-compile guru, but this seems inconsistent.

Juergen Beisert
Xaver,

are you sure you dynamically link your own program against the correct
library and its headers? Maybe you include the libusb.h from your host,
that differs from the one on your ARM.

It always gives funny runtime errors if your host system leaks in.

Xaver
When i do --host=armv4t-arm920t-eabi, configure script returns
checking operating system... configure: error: unsupported operating system
i search for differs in libusb.h  files using diff command and they are
equal. Recompile using arm libusb.h and nothing changes