[gobject-introspection] win32/detect-msvc.mak: Support Visual Studio 2017

[Chun-wei Fan <fanchunwei src gnome org>]

commit d52e120f9510e9040696057aa0da0f6ec3959cdd
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Fri Feb 17 18:01:53 2017 +0800

    win32/detect-msvc.mak: Support Visual Studio 2017
    
    Sync this file from GLib so that we can support Visual Studio 2017,
    which is needed for the NMake Makefiles that are used to build the
    introspection to work (which, are called from the project files).

 win32/detectenv-msvc.mak |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/win32/detectenv-msvc.mak b/win32/detectenv-msvc.mak
index 61f979d..6fd96cc 100644
--- a/win32/detectenv-msvc.mak
+++ b/win32/detectenv-msvc.mak
@@ -40,8 +40,10 @@ VSVER = 10
 VSVER = 11
 !elseif $(VCVERSION) > 1799 && $(VCVERSION) < 1900
 VSVER = 12
-!elseif $(VCVERSION) > 1899 && $(VCVERSION) < 2000
+!elseif $(VCVERSION) > 1899 && $(VCVERSION) < 1910
 VSVER = 14
+!elseif $(VCVERSION) > 1909 && $(VCVERSION) < 2000
+VSVER = 15
 !else
 VSVER = 0
 !endif