[Xen-devel] [PATCH] Unifiy the usage of etags and ctags.

[Horms <horms@xxxxxxxxxxxx>]

Both ctags and etags support the -a (append) option, and
by removing the tags or TAGS file, and then running using the
-a option in conjunction with xargs a full list of tags will
be obtained, regardless of how many files there are.

I believe that the existing invocations of both etags and ctags are wrong:

* I don't think - is a vailid argument to etags

* xargs ctags does not handle the case where ctags is invoked
  multiple times by xargs when there are too many files
  to fit on one command line.

Signed-Off-By: Horms <horms@xxxxxxxxxxxx>

 xen/Makefile |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- from-0022/xen/Makefile
+++ to-work/xen/Makefile        2006-06-27 10:27:44.000000000 +0900
@@ -136,11 +136,11 @@ endef
 
 .PHONY: _TAGS
 _TAGS: 
-       $(all_sources) | etags -
+       rm -f TAGS && $(all_sources) | xargs etags -a
 
 .PHONY: _tags
 _tags: 
-       $(all_sources) | xargs ctags
+       rm -f TAGS && $(all_sources) | xargs ctags -a
 
 .PHONY: _cscope
 _cscope:

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