National Instruments MXI VXI-PCI8026 Getting Started page 91

Chapter 7 Using the NI-VXI/VISA Software
If you define this symbol in your source code, your source code should look
something like the following sample code:
#define VXILINUX
.
.
.
#include <nivxi.h>
Refer to the documentation that came with your compiler package for
detailed instructions about using the compiler and the various tools (linker,
debugger, and so on). Your compiler documentation is an important and
useful source of information for writing, compiling, and debugging
C programs.
© National Instruments Corporation 7-5 VXI/VME-PCI8026 for Linux