Re: [Boost-build] Build with VS8 and VS9

Subject: Re: [Boost-build] Build with VS8 and VS9
From: Vyacheslav Andrejev (mortituris_at_[hidden])
Date: 2014-02-03 00:59:28

VP> I vaguely believe windows.h and friends are now part of Platform
VP> SDK, but I don't remember how a compiler finds them, and which
VP> version is used.

Compiler finds them using environment variables. Boost build executes vcvars32.bat 
file that sets them. vcvars32.bat in turn looks up the registry at *\SOFTWARE\Microsoft\Microsoft 
SDKs\Windows\CurrentInstallFolder and sets SDK include dirs relative to it. 
If it fails, it sets SDK include dir to %VCINSTALLDIR%\PlatformSDK\Include. 
Therefore technically all versions of VS should use the same winnt.h and 
winioctl.h if the correspondent registry key exists and the user has sufficient 
rights to read it.

I would recommend to go to a command line, start vcvars32.bat manually and 
check INCLUDE environment variable after that. Or start procmon and check 
where winnt.h and winioctl.h come from when compiling using VC8 and VC9.

--
Vyacheslav Andrejev