Cannot find -lusb when building ni package!

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It appears libusb is not installed. Try running rosmake --rosdep-install ni and allow it to install any required dependencies.

I am on ubuntu 10.10 and having the same issue.

. . .

make[3]: Entering directory /home/farhad/ni/ni/openni_camera/build' Linking CXX executable ../bin/openni_example /usr/bin/ld: cannot find -lusb collect2: ld returned 1 exit status make[3]: *** [../bin/openni_example] Error 1 make[3]: Leaving directory/home/farhad/ni/ni/openni_camera/build' make[2]: * [CMakeFiles/openni_example.dir/all] Error 2 make[2]: Leaving directory /home/farhad/ni/ni/openni_camera/build' make[1]: *** [all] Error 2 make[1]: Leaving directory/home/farhad/ni/ni/openni_camera/build' make: * [all] Error 2

Actually, I wouldn't say this is fixed. It does raise some issues as there's a bit more to this than it seems at first glance. Two packages are involved on lucid:

• libusb-dev (this is pointer to libusb-0.1)
• libusb-1.0.0-dev

From nhanndt's experience, it turns out ni won't compile if libusb-dev is not installed, which may quite often be the case on a fresh install.

Which begs the question - does ni need libusb-dev as an rosdep? Is ni even linking with libusb-1.0? Does it need libusb-1.0?

Looking at the CMakeLists.txt in openni_camera - it's pulling in libusb-0.1 into the example binaries. You can take out the usb reference there and still compile as libusb-1.0 is getting pulled in libraries in the openni package.

So probably the usb linking in target_link_libraries in openni_camera/CMakeLists.txt can be dropped and it will resolve the problem for future users. Can this be confirmed (should probably ticket this)?