How to add environmental variable to VS solution (.sln )

Question

I need to have my own environmental variable (like $(VsInstallDir) ) for all projects in solution. How can i define it in my solution ?

I'm using VS2008, C++ solution

Answer 1

I had a similar problem and consequent question. Take a look at the answers there. The short answer is: use property sheets.

For example:

<?xml version="1.0" encoding="Windows-1252"?>
<VisualStudioPropertySheet
    ProjectType="Visual C++"
    Version="8.00"
    Name="MyIncludes"
    >
    <UserMacro
        Name="BoostInclude"
        Value="C:\Program Files\boost\boost_1_35_0"
        PerformEnvironmentSet="true"
    />
</VisualStudioPropertySheet>