build/Makefile-newvs.am: Update Comments for Usage

Update the notes that this is also used for Visual Studio 2015 support,
and correct the MSVC_VER_LONG for MSVC 2015, which is 14, not 2015.

Also add a note that this can be used for other projects that have
Visual Studio build support.

diff --git a/build/Makefile-newvs.am b/build/Makefile-newvs.am
index 33ee29f..97b2459 100644 (file)
--- a/build/Makefile-newvs.am
+++ b/build/Makefile-newvs.am
@@ -1,11 +1,15 @@
 # Centralized autotools file
-# Create the Visual Studio 2012/2013 project files
+# Create the Visual Studio 2012/2013/2015 project files
 # from the Visual Studio 2010 project files
 
+# This autotools file, from GLib, can be used in other projects
+# that have Visual Studio build support, and is copied into
+# $(srcroot)/build/.
+
 # Author: Fan, Chun-wei
 # November 05, 2012
 
-# MSVC_VER_LONG: Long Version of Visual Studio (2012, 2013, 2015 and so on)
+# MSVC_VER_LONG: Long Version of Visual Studio (2012, 2013, 14 and so on)
 # MSVC_VER: Short Version of Visual Studio (11 for 2012, 12 for 2013, 14 for 2015 and so on)
 # MSVC_FORMAT_VER: Use 12 for MSVC 2012 through 2015