Do you want to build for x64?(y/n) Otherwise build for x86: n
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** Visual Studio 2017 Developer Command Prompt v15.0.26228.4
** Copyright (c) 2017 Microsoft Corporation
**********************************************************************
[vcvarsall.bat] Environment initialized for: 'x86'
Requirement already up-to-date: mako in c:\software\development\projects\mesa\python\x86\lib\site-packages
Requirement already up-to-date: MarkupSafe>=0.9.2 in c:\software\development\projects\mesa\python\x86\lib\site-packages (from mako)
Requirement already up-to-date: Mako==1.0.6 in c:\software\development\projects\mesa\python\x86\lib\site-packages (from -r requirements.txt (line 1))
Requirement already up-to-date: MarkupSafe==1.0 in c:\software\development\projects\mesa\python\x86\lib\site-packages (from -r requirements.txt (line 2))
Requirement already up-to-date: pywin32==220 in c:\software\development\projects\mesa\python\x86\lib\site-packages (from -r requirements.txt (line 3))
Begin LLVM build. Only needs to run once for each ABI and version. Proceed y/n? n
Do you want to build S3 texture compression library? (y/n):n
Begin mesa build. Proceed y/n? y
Do you want to build with MinGW-W64 instead of Visual Studio? (y=yes):n
Do you want to build OpenSWR drivers? (y=yes):y
scons: Reading SConscript files ...
Checking for MSVC ...  no
Checking for GCC ...  yes
Checking for Clang ...  no
Mkdir("build\windows-x86")
Checking for win_flex ...  yes
Checking for win_bison ...  yes
scons: Found LLVM version 4.0
Checking for X11 (x11 xext xdamage xfixes glproto >= 1.4.13)... no
Checking for XCB (x11-xcb xcb-glx >= 1.8.1 xcb-dri2 >= 1.8)... no
Checking for XF86VIDMODE (xxf86vm)... no
Checking for DRM (libdrm >= 2.4.66)... no

scons: warning: No version of Visual Studio compiler found - C/C++ compilers most likely not set correctly
File "C:\Software\Development\projects\mesa\mesa\SConstruct", line 60, in <module>
fatal: Not a git repository (or any of the parent directories): .git
AttributeError: 'NoneType' object has no attribute 'dir':
  File "C:\Software\Development\projects\mesa\mesa\SConstruct", line 143:
    duplicate = 0 # http://www.scons.org/doc/0.97/HTML/scons-user/x2261.html
  File "C:\Software\Development\projects\mesa\Python\x86\Scripts\..\Lib\site-packages\scons-2.5.1\SCons\Script\SConscript.py", line 604:
    return method(*args, **kw)
  File "C:\Software\Development\projects\mesa\Python\x86\Scripts\..\Lib\site-packages\scons-2.5.1\SCons\Script\SConscript.py", line 541:
    return _SConscript(self.fs, *files, **subst_kw)
  File "C:\Software\Development\projects\mesa\Python\x86\Scripts\..\Lib\site-packages\scons-2.5.1\SCons\Script\SConscript.py", line 250:
    exec _file_ in call_stack[-1].globals
  File "C:\Software\Development\projects\mesa\mesa\src\SConscript", line 87:
    SConscript('gallium/SConscript')
  File "C:\Software\Development\projects\mesa\Python\x86\Scripts\..\Lib\site-packages\scons-2.5.1\SCons\Script\SConscript.py", line 604:
    return method(*args, **kw)
  File "C:\Software\Development\projects\mesa\Python\x86\Scripts\..\Lib\site-packages\scons-2.5.1\SCons\Script\SConscript.py", line 541:
    return _SConscript(self.fs, *files, **subst_kw)
  File "C:\Software\Development\projects\mesa\Python\x86\Scripts\..\Lib\site-packages\scons-2.5.1\SCons\Script\SConscript.py", line 250:
    exec _file_ in call_stack[-1].globals
  File "C:\Software\Development\projects\mesa\mesa\src\gallium\SConscript", line 102:
    SConscript('tests/graw/SConscript')
  File "C:\Software\Development\projects\mesa\Python\x86\Scripts\..\Lib\site-packages\scons-2.5.1\SCons\Script\SConscript.py", line 604:
    return method(*args, **kw)
  File "C:\Software\Development\projects\mesa\Python\x86\Scripts\..\Lib\site-packages\scons-2.5.1\SCons\Script\SConscript.py", line 541:
    return _SConscript(self.fs, *files, **subst_kw)
  File "C:\Software\Development\projects\mesa\Python\x86\Scripts\..\Lib\site-packages\scons-2.5.1\SCons\Script\SConscript.py", line 250:
    exec _file_ in call_stack[-1].globals
  File "C:\Software\Development\projects\mesa\mesa\src\gallium\tests\graw\SConscript", line 7:
    env.Prepend(LIBPATH = [graw.dir])

C:\Software\Development\projects\mesa\mesa>