[gtk+/gtk-2-24] Remove gtk-install.props's during re-generation

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

commit 479372c06868848f6c37a2d56356efa37aa3767c
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Wed Oct 19 18:54:19 2016 +0800

    Remove gtk-install.props's during re-generation
    
    This is to ensure the changes in the generated
    build/win32/vs10/gtk-install.props are applied in
    build/win32/vs[11|12|14] as well.

 build/win32/vs10/Makefile.am |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/build/win32/vs10/Makefile.am b/build/win32/vs10/Makefile.am
index 5a2f9bd..34876f4 100644
--- a/build/win32/vs10/Makefile.am
+++ b/build/win32/vs10/Makefile.am
@@ -42,6 +42,9 @@ EXTRA_DIST += \
 MSVC_INTERMEDIATE_FILES = gdk-win32.vs10.headers gdk.vs10.headers gtk.vs10.headers gailutil.vs10.headers
 
 gtk-install.props: $(MSVC_INTERMEDIATE_FILES)
+       -$(RM) $(top_builddir)/build/win32/vs11/gtk-install.props
+       -$(RM) $(top_builddir)/build/win32/vs12/gtk-install.props
+       -$(RM) $(top_builddir)/build/win32/vs14/gtk-install.props
        $(CPP) -P - <$(top_srcdir)/build/win32/vs10/gtk-install.propsin >$@
        rm $(MSVC_INTERMEDIATE_FILES)