linux-kernel - Re: trace-cmd: make Makefile rpm-friendly

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Date:	Mon, 19 Apr 2010 20:11:10 +0200 (CEST)
From:	John Kacur <jkacur@...hat.com>
To:	Randy Dunlap <randy.dunlap@...cle.com>
cc:	lkml <linux-kernel@...r.kernel.org>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: Re: trace-cmd: make Makefile rpm-friendly



On Mon, 19 Apr 2010, Randy Dunlap wrote:

> From: Randy Dunlap <randy.dunlap@...cle.com>
> 
> Update Makefile to support rpmbuild DESTDIR usage.

So, what would happen if you did
make DESTDIR=/usr/local install ?

I think you would get /usr/local/usr/local
So, I think I would NAK this patch.

I also don't believe there is anything magical about DESTDIR in a spec 
file. Essentially, prefix in this makefile is equivalent to DESTDIR, so 
you can replace DESTDIR with prefix in a spec template.
 
> Signed-off-by: Randy Dunlap <randy.dunlap@...cle.com>
> ---
>  Makefile |    7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)
> 
> --- trace-cmd-0.7.0.orig/Makefile
> +++ trace-cmd-0.7.0/Makefile
> @@ -18,10 +18,11 @@ AR = $(CROSS_COMPILE)ar
>  EXT = -std=gnu99
>  INSTALL = install
>  
> +DESTDIR =
>  prefix ?= /usr/local
>  bindir_relative = bin
> -bindir = $(prefix)/$(bindir_relative)
> -man_dir = $(prefix)/share/man
> +bindir = $(DESTDIR)/$(prefix)/$(bindir_relative)
> +man_dir = $(DESTDIR)/$(prefix)/share/man
>  man_dir_SQ = '$(subst ','\'',$(man_dir))'
>  
>  export man_dir man_dir_SQ INSTALL
> @@ -29,7 +30,7 @@ export man_dir man_dir_SQ INSTALL
>  ifeq ($(prefix),$(HOME))
>  plugin_dir = $(HOME)/.trace-cmd/plugins
>  else
> -plugin_dir = $(prefix)/share/trace-cmd/plugins
> +plugin_dir = $(DESTDIR)/$(prefix)/share/trace-cmd/plugins
>  PLUGIN_DIR = -DPLUGIN_DIR=$(plugin_dir)
>  PLUGIN_DIR_SQ = '$(subst ','\'',$(PLUGIN_DIR))'
>  endif
> --
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