Rework tags targets in Windows makefiles to protect against old/stupid makes.

* lib-src/makefile.w32-in (tags): Remove target.
* src/makefile.w32-in (tags): Rename target to full-tags.

lib-src/ChangeLog

+2010-10-02  Juanma Barranquero  <lekktu@gmail.com>
+
+	* makefile.w32-in (tags): Remove target.
+
 2010-10-01  Eli Zaretskii  <eliz@gnu.org>
 
 	* makefile.w32-in (tags, TAGS): New targets.

lib-src/makefile.w32-in

@@ -380,7 +380,6 @@ getopt.h:		getopt_.h
 
 ### TAGS ###
 
-tags: TAGS
 TAGS: $(BLD)/etags.exe *.c *.h
 	$(BLD)/etags.exe *.c *.h
 

src/ChangeLog

+2010-10-02  Juanma Barranquero  <lekktu@gmail.com>
+
+	* makefile.w32-in (tags): Rename target to full-tags.
+
 2010-10-02  Eli Zaretskii  <eliz@gnu.org>
 	* emacs.c (main): Remove !WINDOWSNT conditional.

src/makefile.w32-in

@@ -335,8 +335,8 @@ nt-TAGS-nmake:
 	echo This target is not supported with NMake
 	exit -1
 
-tags: TAGS TAGS-LISP ../nt/TAGS
-.PHONY: tags
+full-tags: TAGS TAGS-LISP ../nt/TAGS
+.PHONY: full-tags
 
 ### DEPENDENCIES ###