Updated imported headers to current Wine version.

git-svn-id: https://mingw-w64.svn.sourceforge.net/svnroot/mingw-w64/trunk@5770 4407c894-4637-0410-b4f5-ada5f102cad1
Update to automake 1.13.1

git-svn-id: https://mingw-w64.svn.sourceforge.net/svnroot/mingw-w64/trunk@5771 4407c894-4637-0410-b4f5-ada5f102cad1
Update to autoconf 2.69

git-svn-id: https://mingw-w64.svn.sourceforge.net/svnroot/mingw-w64/trunk@5772 4407c894-4637-0410-b4f5-ada5f102cad1
Update to autoconf 2.69

git-svn-id: https://mingw-w64.svn.sourceforge.net/svnroot/mingw-w64/trunk@5773 4407c894-4637-0410-b4f5-ada5f102cad1
Update to automake 1.13.1

git-svn-id: https://mingw-w64.svn.sourceforge.net/svnroot/mingw-w64/trunk@5774 4407c894-4637-0410-b4f5-ada5f102cad1
Fix an unsigned comparison warning

git-svn-id: https://mingw-w64.svn.sourceforge.net/svnroot/mingw-w64/trunk@5777 4407c894-4637-0410-b4f5-ada5f102cad1