[LLVMbugs] [Bug 13079] New: MSVC-built Clang cannot find VS headers in MSYS on x64 OS

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=13079

             Bug #: 13079
           Summary: MSVC-built Clang cannot find VS headers in MSYS on x64
                    OS
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Driver
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: vanboxem.ruben at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


Clang built with MSVC using MSVC libs/tools under MSYS will allow to build
autotools projects in a MSVC-compatible way, which is one of the reasons Clang
is awesome.

Problem is: it seems Clang forgets about "Program Files (x86)" inside MSYS, and
searches these paths on my x64 Windows:
clang -cc1 version 3.2 based upon LLVM 3.2svn default target x86_64-pc-win32
ignoring nonexistent directory "C:/Program Files/Microsoft Visual Studio
10.0/VC/include"
ignoring nonexistent directory "C:/Program Files/Microsoft Visual Studio
9.0/VC/include"
ignoring nonexistent directory "C:/Program Files/Microsoft Visual Studio
9.0/VC/PlatformSDK/Include"
ignoring nonexistent directory "C:/Program Files/Microsoft Visual Studio
8/VC/include"
ignoring nonexistent directory "C:/Program Files/Microsoft Visual Studio
8/VC/PlatformSDK/Include"
#include "..." search starts here:
#include <...> search starts here:
 m:/Development/x64-msvc/LLVM/bin/../lib/clang/3.2/include
End of search list.

>From regular cmd.exe, I get the working paths:
#include "..." search starts here:
#include <...> search starts here:
 M:/Development/x64-msvc/LLVM/bin/../lib/clang/3.2/include
 C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\Include
 C:\Program Files\Microsoft SDKs\Windows\v7.0\Include
 C:\Program Files\Microsoft SDKs\Windows\v7.0\Include\gl
End of search list.

I do not know where the difference comes from.

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