[Vnsupport-users] need help

[dibyendu g. <dib...@gm...>]

dear sir,
I have compiled vnsupport in ubuntu 12.04 64bit
when i am going to compile make vntest i am getting following error plz help
 make vntest
gcc -fPIC -L. -lvnsupport vntest.c -o vntest
/tmp/ccpRYnxF.o: In function `main':
vntest.c:(.text+0x55): undefined reference to `VNS_UART_initDevice'
vntest.c:(.text+0xf6): undefined reference to `VNS_UART_setSleepDelay'
vntest.c:(.text+0x112): undefined reference to `VNS_UART_getAsyncOutputType'
vntest.c:(.text+0x139): undefined reference to `VNS_UART_setAsyncOutputType'
vntest.c:(.text+0x178): undefined reference to `VNS_UART_VNStrerror'
vntest.c:(.text+0x1be): undefined reference to `VNS_UART_tareDevice'
vntest.c:(.text+0x20a): undefined reference to `VNS_UART_getBaudrate'
vntest.c:(.text+0x22c): undefined reference to
`VNS_UART_getAsyncOutputFrequency'
vntest.c:(.text+0x253): undefined reference to
`VNS_UART_setAsyncOutputFrequency'
vntest.c:(.text+0x292): undefined reference to `VNS_UART_VNStrerror'
vntest.c:(.text+0x2cc): undefined reference to
`VNS_UART_getAsyncOutputFrequency'
vntest.c:(.text+0x2f3): undefined reference to `VNS_UART_setAsyncOutputType'
vntest.c:(.text+0x332): undefined reference to `VNS_UART_VNStrerror'
vntest.c:(.text+0x37f): undefined reference to `VNS_UART_setAsyncOutputType'
vntest.c:(.text+0x38e): undefined reference to `VNS_UART_getAsyncOutputType'
vntest.c:(.text+0x3bc): undefined reference to
`VNS_UART_asynchronousCapture'
vntest.c:(.text+0x54c): undefined reference to `VNS_UART_shutdown'
collect2: error: ld returned 1 exit status