[gtk+] build/Makefile.msvcproj: Add rules for MSVC 2013 to be baseline version

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

commit 910300bcb2a464dcd7e1a9347d66250b71a484c5
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Wed Oct 26 13:22:48 2016 +0800

    build/Makefile.msvcproj: Add rules for MSVC 2013 to be baseline version
    
    GTK+-3.89.0 and later will require C99 features that is only supported on
    Visual Studio 2013 and later, so prepare build/Makefile.msvcproj for this.
    
    We still keep the 2008~2010 stuff here as this strives to be a shared module,
    and there are projects using this that still supports building on pre-2013
    Visual Studio.

 build/Makefile.msvcproj |   33 +++++++++++++++++++++++++++++++++
 1 files changed, 33 insertions(+), 0 deletions(-)
---
diff --git a/build/Makefile.msvcproj b/build/Makefile.msvcproj
index f127eea..2a2dd89 100644
--- a/build/Makefile.msvcproj
+++ b/build/Makefile.msvcproj
@@ -109,6 +109,39 @@ $(top_builddir)/build/win32/vs9/$(1).headers: Makefile
                esac;   \
        done
 
+$(top_builddir)/build/win32/vs12/$(1).vcxproj.filters: $(top_builddir)/build/win32/vs12/$(1).vcxproj
+
+$(top_builddir)/build/win32/vs12/$(1).vcxproj: Makefile
+       -$(RM) $(top_builddir)/build/win32/vs14/$(1).vcxproj
+       -$(RM) $(top_builddir)/build/win32/vs14/$(1).vcxproj.filters
+
+       for F in $(_proj_files); do \
+               case $$$$F in \
+               $(_proj_filters)) \
+                       ;; \
+               *.c|*.cpp|*.cc|*.cxx) \
+                       echo '   <ClCompile Include="..\..\..'$(_proj_subdir)$$$$F'" />' 
> > $(1).vs12.sourcefiles && \
+                       echo '   <ClCompile Include="..\..\..'$(_proj_subdir)$$$$F'"><Filter>Source 
Files</Filter></ClCompile>' >>$(1).vs12.sourcefiles.filters \
+                       ;; \
+               esac;   \
+       done
+
+       $(CPP) -P - <$(top_srcdir)/build/win32/vs12/$(1).vcxprojin 
> $(top_builddir)/build/win32/vs12/$(1).vcxproj
+       $(CPP) -P - <$(top_srcdir)/build/win32/vs12/$(1).vcxproj.filtersin 
> $(top_builddir)/build/win32/vs12/$(1).vcxproj.filters
+
+$(top_builddir)/build/win32/vs12/$(1).vs12.headers: Makefile
+       -$(RM) $(top_builddir)/build/win32/vs12/$(1).vs12.headers
+
+       for F in $(_proj_headers); do \
+               case $$$$F in \
+               $(_proj_headers_excludes)) \
+                       ;; \
+               *.h|*.hpp|*.hh|*.hxx) \
+                       echo 'copy ..\..\..'$(_proj_subdir)$$$$F' 
$$$$(CopyDir)\include'$(_headers_destdir)'\'$$$$F >>$(top_builddir)/build/win32/vs12/$(1).vs12.headers \
+                       ;; \
+               esac;   \
+       done
+
 endef
 
 $(foreach proj,$(MSVCPROJS),$(eval $(call msvcproj-builder,$(proj))))