sudo apt-get update
sudo apt-get upgrade
sudo apt-get install libusb-1.0-0-dev
sudo apt-get install libusb-1.0-0-dbg

sudo gcc -g -o usbtest usbtest.c -lusb-1.0

/usr/bin/ld: cannot find -lusb-1.0
collect2: error: ld returned 1 exit status

sudo gcc -g -o usbtest usbtest.c -L/usr/local/lib -lusb-1.0

141      int r = 1;
(gdb) s
143      r = libusb_init(NULL);
(gdb)
libusb_init (context=0x0) at ../../libusb/core.c:1983
1983    ../../libusb/core.c: No such file or directory.
(gdb)
1985    in ../../libusb/core.c
(gdb)
__GI_getenv (name=0xb7fb2f16 "LIBUSB_DEBUG") at getenv.c:34
34  getenv.c: No such file or directory.
(gdb)
__x86.get_pc_thunk.bx () at ../sysdeps/i386/i686/multiarch/../memcmp.S:80
80  ../sysdeps/i386/i686/multiarch/../memcmp.S: No such file or directory.
(gdb)
__GI_getenv (name=0xb7fb2f16 "LIBUSB_DEBUG") at getenv.c:35
35  getenv.c: No such file or directory.
(gdb)
__strlen_ia32 () at ../sysdeps/i386/i686/multiarch/../../i586/strlen.S:43
43  ../sysdeps/i386/i686/multiarch/../../i586/strlen.S: No such file or directory.
(gdb)
44  in ../sysdeps/i386/i686/multiarch/../../i586/strlen.S