Utilities/Release: Build for Windows 7 and above

Drop support for Windows XP and Windows Vista.  Upstream libuv has
done this, and since that is a dependency of ours we will soon
need to do so also.

Help/release/dev/rel-win7.rst

@@ -0,0 +1,6 @@
+rel-win7
+--------
+
+* Support for running CMake on Windows XP and Windows Vista has been dropped.
+  The precompiled Windows binaries provided on ``cmake.org`` now require
+  Windows 7 or higher.

Utilities/Release/win32_release.cmake

@@ -25,13 +25,13 @@ BUILD_QtDialog:BOOL=TRUE
 CMake_GUI_DISTRIBUTE_WITH_Qt_LGPL:STRING=3
 CMAKE_C_FLAGS_RELEASE:STRING=-MT -O2 -Ob2 -DNDEBUG
 CMAKE_CXX_FLAGS_RELEASE:STRING=-MT -O2 -Ob2 -DNDEBUG
-CMAKE_EXE_LINKER_FLAGS:STRING=-machine:x86 -subsystem:console,5.01
+CMAKE_EXE_LINKER_FLAGS:STRING=-machine:x86 -subsystem:console,6.01
 CMake_QT_STATIC_QWindowsIntegrationPlugin_LIBRARIES:STRING=${qt_win_libs}
 CMAKE_PREFIX_PATH:STRING=${qt_prefix}
 CMake_TEST_Qt4:BOOL=OFF
 CMake_TEST_Qt5:BOOL=OFF
 ")
-set(ppflags "-D_WIN32_WINNT=0x501 -DNTDDI_VERSION=0x05010000 -D_USING_V110_SDK71_")
+set(ppflags "-D_WIN32_WINNT=0x601 -DNTDDI_VERSION=0x06010000 -D_USING_V110_SDK71_")
 set(CFLAGS "${ppflags}")
 set(CXXFLAGS "${ppflags}")
 set(ENV ". ~/rel/env32")

Utilities/Release/win64_release.cmake

@@ -25,13 +25,13 @@ BUILD_QtDialog:BOOL=TRUE
 CMake_GUI_DISTRIBUTE_WITH_Qt_LGPL:STRING=3
 CMAKE_C_FLAGS_RELEASE:STRING=-MT -O2 -Ob2 -DNDEBUG
 CMAKE_CXX_FLAGS_RELEASE:STRING=-MT -O2 -Ob2 -DNDEBUG
-CMAKE_EXE_LINKER_FLAGS:STRING=-machine:x64 -subsystem:console,5.02
+CMAKE_EXE_LINKER_FLAGS:STRING=-machine:x64 -subsystem:console,6.01
 CMake_QT_STATIC_QWindowsIntegrationPlugin_LIBRARIES:STRING=${qt_win_libs}
 CMAKE_PREFIX_PATH:STRING=${qt_prefix}
 CMake_TEST_Qt4:BOOL=OFF
 CMake_TEST_Qt5:BOOL=OFF
 ")
-set(ppflags "-D_WIN32_WINNT=0x502 -DNTDDI_VERSION=0x05020000 -D_USING_V110_SDK71_")
+set(ppflags "-D_WIN32_WINNT=0x601 -DNTDDI_VERSION=0x06010000 -D_USING_V110_SDK71_")
 set(CFLAGS "${ppflags}")
 set(CXXFLAGS "${ppflags}")
 set(ENV ". ~/rel/env64")