title: fatal error C1083: Cannot open include file: 'excpt.h' and 'ctype.h'
body: <p>I'm trying to build <em>TortoiseSVN</em> and when I run <em>nant</em> setup, I get these build errors and I'm not sure how to resolve them. There are similar posts on SO but they're outdated or do not apply to my situation. Eventually, I will need to use Visual Studio 2015 to build the project. </p>
  
  <p>Here's the build error from the log: </p>
  
  <pre><code>[build cl] C:\Program Files (x86)\Windows Kits\8.1\include\um\windows.h(160) : fatal error C1083: Cannot open include file: 'excpt.h': No such file or directory (C:\Users\~\Desktop\SVN\TortoiseSVN192\ext\apr\file_io\win32\dir.c)
  [build cl] C:\Program Files (x86)\Windows Kits\8.1\include\um\windows.h(160) : fatal error C1083: Cannot open include file: 'excpt.h': No such file or directory (C:\Users\~\Desktop\SVN\TortoiseSVN192\ext\apr\file_io\win32\filepath.c)
  [build cl] C:\Program Files (x86)\Windows Kits\8.1\include\um\windows.h(160) : fatal error C1083: Cannot open include file: 'excpt.h': No such file or directory (C:\Users\~\Desktop\SVN\TortoiseSVN192\ext\apr\file_io\win32\filestat.c)
  [build cl] C:\Program Files (x86)\Windows Kits\8.1\include\um\windows.h(160) : fatal error C1083: Cannot open include file: 'excpt.h': No such file or directory (C:\Users\~\Desktop\SVN\TortoiseSVN192\ext\apr\network_io\unix\sockaddr.c)
  [build cl] C:\Program Files (x86)\Windows Kits\8.1\include\um\windows.h(160) : fatal error C1083: Cannot open include file: 'excpt.h': No such file or directory (C:\Users\~\Desktop\SVN\TortoiseSVN192\ext\apr\atomic\win32\apr_atomic.c)
  [build cl] C:\Program Files (x86)\Windows Kits\8.1\include\um\windows.h(160) : fatal error C1083: Cannot open include file: 'excpt.h': No such file or directory (C:\Users\~\Desktop\SVN\TortoiseSVN192\ext\apr\locks\win32\proc_mutex.c)
  [build cl] C:\Program Files (x86)\Windows Kits\8.1\include\um\windows.h(160) : fatal error C1083: Cannot open include file: 'excpt.h': No such file or directory (C:\Users\~\Desktop\SVN\TortoiseSVN192\ext\apr\encoding\apr_escape.c)
  [build cl] C:\Program Files (x86)\Windows Kits\8.1\include\um\windows.h(160) : fatal error C1083: Cannot open include file: 'excpt.h': No such file or directory (C:\Users\~\Desktop\SVN\TortoiseSVN192\ext\apr\file_io\win32\filesys.c)
  
  [build cl] C:\Program Files (x86)\Windows Kits\8.1\include\um\winnt.h(31): fatal error C1083: Cannot open include file: 'ctype.h': No such file or directory (compiling source file C:\Users\~\Desktop\SVN\TortoiseSVN192\ext\apr\file_io\win32\dir.c)
  [build cl] C:\Program Files (x86)\Windows Kits\8.1\include\um\winnt.h(31): fatal error C1083: Cannot open include file: 'ctype.h': No such file or directory (compiling source file C:\Users\~\Desktop\SVN\TortoiseSVN192\ext\apr\locks\win32\proc_mutex.c)
  [build cl] C:\Program Files (x86)\Windows Kits\8.1\include\um\winnt.h(31): fatal error C1083: Cannot open include file: 'ctype.h': No such file or directory (compiling source file C:\Users\~\Desktop\SVN\TortoiseSVN192\ext\apr\file_io\win32\filepath.c)
  [build cl] C:\Program Files (x86)\Windows Kits\8.1\include\um\winnt.h(31): fatal error C1083: Cannot open include file: 'ctype.h': No such file or directory (compiling source file C:\Users\~\Desktop\SVN\TortoiseSVN192\ext\apr\file_io\win32\filestat.c)
  [build cl] C:\Program Files (x86)\Windows Kits\8.1\include\um\winnt.h(31): fatal error C1083: Cannot open include file: 'ctype.h': No such file or directory (compiling source file C:\Users\~\Desktop\SVN\TortoiseSVN192\ext\apr\network_io\unix\sockaddr.c)
  [build cl] C:\Program Files (x86)\Windows Kits\8.1\include\um\winnt.h(31): fatal error C1083: Cannot open include file: 'ctype.h': No such file or directory (compiling source file C:\Users\~\Desktop\SVN\TortoiseSVN192\ext\apr\atomic\win32\apr_atomic.c)
  [build cl] C:\Program Files (x86)\Windows Kits\8.1\include\um\winnt.h(31): fatal error C1083: Cannot open include file: 'ctype.h': No such file or directory (compiling source file C:\Users\~\Desktop\SVN\TortoiseSVN192\ext\apr\file_io\win32\filesys.c)
  [build cl] C:\Program Files (x86)\Windows Kits\8.1\include\um\winnt.h(31): fatal error C1083: Cannot open include file: 'ctype.h': No such file or directory (compiling source file C:\Users\~\Desktop\SVN\TortoiseSVN192\ext\apr\encoding\apr_escape.c)
  </code></pre>