Real-Time Workshop User's Guide

Making an Executable

After completing code generation, the build process determines whether or not to continue and compile and link an executable program. This decision is governed by the following parameters:

• Generate code only option

When this option is selected, the build process always omits the make phase.

• Makefile-only target

The Visual C/C++ Project Makefile versions of the grt, grt_malloc, and Real-Time Workshop Embedded Coder target configurations generate a Visual C/C++ project makefile (model.mak). To build an executable, you must open model.mak in the Visual C/C++ IDE and compile and link the model code.

• HOST template makefile variable

The template makefile variable HOST identifies the type of system upon which your executable is intended to run. The HOST variable can take on one of three possible values: PC, UNIX, or ANY.

By default, HOST is set to UNIX in template makefiles designed for use with UNIX (such as grt_unix.tmf), and to PC in the template makefiles designed for use with development systems for the PC (such as grt_vc.tmf).

If Simulink is running on the same type of system as that specified by the HOST variable, then the executable is built. Otherwise:

• If HOST = ANY, an executable is still built. This option is useful when you want to cross-compile a program for a system other than the one Simulink is running on.
• Otherwise, processing stops after generating the model code and the makefile; the following message is displayed on the MATLAB command line.

### Make will not be invoked - template makefile is for a different 
host

Target Language Compiler Variables and Options

Directories Used in the Build Process