Changed code to use the RM environment variable (if one exists) to delete files. If one does not exist, the ERASE command is used which is what was used previously

Target added for building .OBJ files for .C files in DEBUG or RELEASE subdirs


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9101 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/makevc.env

@@ -8,6 +8,10 @@
 #
 !include <ntwin32.mak>
 
+!if "$(RM)" == ""
+RM= erase
+!endif
+
 WXVERSION=23_0
 WIN95=1
 
@@ -227,6 +231,12 @@ $(CPPFLAGS2) /Fo$@ /c $<
 $(CPPFLAGS2) /Fo$@ /c $<
 <<
 
+#use CPPFLAGS2 so as not to use precompiled headers
+{}.c{$D}.obj:
+	cl @<<
+$(CPPFLAGS2) /Fo$@ /c $<
+<<
+
 {}.cpp{$D}.obj:
 	cl @<<
 $(CPPFLAGS) /Fo$@ /c /Tp $<