I have to compile one executable on Windows, the first time. I'm using visual studio 2003 and want the equivalent of a command line macro definition.
What's the VS equivalent of g++ -Dthismacro=1?
Update For VS 2003, I found it this way. Right clicking on the project, I go to "Properties". From there, it's Configuration Properties -> C/C++ -> Preprocessor -> Preprocessor Definitions
If you right click on the project, it should bring up a project configuration page. Goto "build" and then you should be able to define preprocessor symbols.. (hopefully it works the same in 2003 as 2008)
since you seem to be coming from a linux-flavor, why not use the commandline: the argument for macro definition is actually the same, except the compiler executable is cl and not g++:
cl -Dthismacro=1
although the documentation says the convention is to use /D, most (all?) arguments can be used with the - switch.
When using visual Studio, you can verify this: if you add a preprocessor symbol the way earlz suggested, this can be seen as /D"thismacro=1" option under Configuration->C/C++->Command Line