[Xen-changelog] [xen-unstable] [XEN][BUILD] Both ctags and etags support the -a (append) option, and

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User kaf24@xxxxxxxxxxxxxxxxxxxx
# Node ID 60d7d64eaff2cb6fa081b960237fa530f48cb9e8
# Parent  23591d2c46aa666a9d50cf36baf73aa0b95aa11b
[XEN][BUILD] 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 files changed, 2 insertions(+), 2 deletions(-)

diff -r 23591d2c46aa -r 60d7d64eaff2 xen/Makefile
--- a/xen/Makefile      Tue Jun 27 11:23:06 2006 +0100
+++ b/xen/Makefile      Tue Jun 27 11:27:25 2006 +0100
@@ -132,11 +132,11 @@ 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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