Why do I get the error "Cannot open include file: 'math.h'" when trying to compile a model using MSVC 2005 and Simulink 7.3 (R2009a)?

I am trying to compile the demo model "xpcosc" for xPC Target using the MSVC 2005 compiler. Using the xPC Target Explorer (xpcexplr), I selected the Visual C compiler located in the following folder:

C:\Program Files\Microsoft Visual Studio 8

When I then try to build the model (Ctrl+B), I get the following error:

 c:\temp\xpcocs\xpcosc_xpc_rtw\xpcosc.h(22) : fatal error C1083: Cannot open include file: 'math.h': No such file or directory

 NMAKE : fatal error U1077: '"c:\program files\microsoft visual studio 8\VC\BIN\cl.EXE"' : return code '0x2'

 Stop.

Answer 1

[MathWorks Support Team]

This seems to be an issue in MSVC 2005, in the way that the file "math.h" is not present in a necessary "include" folder.

To work around this issue, copy the math.h file from the folder:

C:\Program Files\Microsoft Visual Studio 8\VC\crt\src\math.h

... to the following:

C:\Program Files\Microsoft Visual Studio 8\VC\include