Rename nmake makefiles as makefile rather than Makefile so that

the build script will not remove them.

diff --git a/windows/cmd/gvui/Makefile b/windows/cmd/gvui/Makefile
deleted file mode 100755 (executable)
index ddc7444..0000000
--- a/windows/cmd/gvui/Makefile
+++ /dev/null
@@ -1,8 +0,0 @@
-:PACKAGE: graphviz
-
-:ALL:
-
-GVUI.exe : .TERMINAL
-
-$(BINDIR) :INSTALLDIR: GVUI.exe
-