CODEWITHSUNDEEP
windows-7c-preprocessorpreprocessor-directive
cdjc
cdjc

Reputation: 1108

What #if preprocessor directive to determine if OS is WIN 7 SP1?

I'd like conditional compilation based on whether the compiling machine is running Windows 7 SP1 or not.

We have a workaround for http://support.microsoft.com/kb/2517589 but I don't want to check the code in unless it is guarded by an #ifdef _WIN7_SP1 otherwise the other devs won't be able to compile it on their non win7-sp1 machines.

I've had a bit of a google but couldn't find anything useful.

Upvotes: 1

Views: 315

Answers (1)

jamesdlin
jamesdlin

Reputation: 90095

You don't. Things in the environment of the build machine generally don't pollute compilation like that. (Imagine if that happened and what effects it would cause on reproducibility of builds.)

If you really need to, I'd instead have your build system (make, Visual Studio, whatever) execute a program that checks the current Windows version and fails as necessary (or possibly your build system can determine this already). Based on that, you then could conditionally make own WIN7_SP1 definition via a command-line argument to your compiler.

Upvotes: 2

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