linux-kernel - Re: [PATCH 5/5] trace-cmd: Simplify Makefile, and remove confusing messages.

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Message-ID: <520f0cf11003241731r129590a1ha0bf28312659e87f@mail.gmail.com>
Date:	Thu, 25 Mar 2010 01:31:32 +0100
From:	John Kacur <jkacur@...hat.com>
To:	rostedt@...dmis.org
Cc:	lkml <linux-kernel@...r.kernel.org>,
	Darren Hart <dvhltc@...ibm.com>
Subject: Re: [PATCH 5/5] trace-cmd: Simplify Makefile, and remove confusing 
	messages.

On Thu, Mar 25, 2010 at 1:24 AM, Steven Rostedt <rostedt@...dmis.org> wrote:
> On Thu, 2010-03-25 at 00:24 +0100, John Kacur wrote:
>> During the make process the user is told many times
>> *** to install the gui, type "make install gui" ***
>> This is confusing for many reasons.
>> 1. "***" are output when Make encounters errors, so the messages look like errors
>> 2. Why do we need to be told that if we are not interested in the gui?
>
> I'm fine with all the patches but this one. Maybe it's a matter of
> opinion, but one thing that I've learned is to make things easy for
> users. I point people to this repo for kernelshark. If they do make, and
> don't get it, I want them to know that they can do in with make gui, and
> not expect them to have to look at other files. Yes I consider people
> lazy.
>
> Maybe this is OK, but I would like to hear other opinions on this
> subject. A README and INSTALL maybe fine instead.

If you don't like this, I could just submit the README changes
but I would at least recommend that we change the messages
so they don't like like Makefile errors.

For example: REMINDER: You can make the gui by typing make gui
instead of the *** that match make file errors.

>
> Thanks,
>
> -- Steve
>
>>
>> Remove these kinds of messages, and simplify the Makefile.
>> However, in order to replace this information, add to the README with a
>> BUILDING and INSTALL section
>>
>> Signed-off-by: John Kacur <jkacur@...hat.com>
>> ---
>>  Makefile |   19 ++++---------------
>>  README   |   26 ++++++++++++++++++++++++++
>>  2 files changed, 30 insertions(+), 15 deletions(-)
>>
>> diff --git a/Makefile b/Makefile
>> index 8a3f25c..15f2ffa 100644
>> --- a/Makefile
>> +++ b/Makefile
>> @@ -241,14 +241,14 @@ TARGETS = $(CMD_TARGETS) $(GUI_TARGETS)
>>  #    If you want kernelshark, then do:  make gui
>>  ###
>>
>> -all: all_cmd show_gui_make
>> +all: all_cmd
>>
>>  all_cmd: $(CMD_TARGETS)
>>
>>  gui: $(CMD_TARGETS)
>>       $(Q)$(MAKE) -f $(src)/Makefile BUILDGUI=1 all_gui
>>
>> -all_gui: $(GUI_TARGETS) show_gui_done
>> +all_gui: $(GUI_TARGETS)
>>
>>  GUI_OBJS = $(KERNEL_SHARK_OBJS) $(TRACE_VIEW_MAIN_OBJS) $(TRACE_GRAPH_MAIN_OBJS)
>>
>> @@ -372,14 +372,6 @@ ifneq ($(dep_includes),)
>>   include $(dep_includes)
>>  endif
>>
>> -show_gui_make:
>> -     @echo "*** to build the gui, type \"make gui\" ***"
>> -
>> -show_gui_done:
>> -     @echo "*** gui build complete ***"
>> -
>> -PHONY += show_gui_make
>> -
>>  tags:        force
>>       $(RM) tags
>>       find . -name '*.[ch]' | xargs ctags
>> @@ -392,14 +384,11 @@ install_plugins: $(PLUGINS)
>>       $(INSTALL) -d -m 755  '$(plugin_dir_SQ)'
>>       $(INSTALL) $^  '$(plugin_dir_SQ)'
>>
>> -install_cmd: all_cmd install_plugins
>> +install: all_cmd install_plugins
>>       $(INSTALL) -d -m 755 '$(bindir_SQ)'
>>       $(INSTALL) trace-cmd '$(bindir_SQ)'
>>
>> -install: install_cmd
>> -     @echo "*** to install the gui, type \"make install_gui\" ***"
>> -
>> -install_gui: install_cmd gui
>> +install_gui: install gui
>>       $(INSTALL) -d -m 755 '$(bindir_SQ)'
>>       $(INSTALL) trace-view '$(bindir_SQ)'
>>       $(INSTALL) trace-graph '$(bindir_SQ)'
>> diff --git a/README b/README
>> index 7ac4390..d191197 100644
>> --- a/README
>> +++ b/README
>> @@ -9,3 +9,29 @@ These files also make up the code to create the libraries
>>  The applications are licensed under the GNU General Public License 2.0
>>  (see COPYING) and the libraries are licensed under the GNU
>>  Lesser General Public License 2.1 (See COPYING.LIB).
>> +
>> +BUILDING:
>> +
>> +To make trace-cmd
>> +    make
>> +
>> +To make the gui
>> +    make gui
>> +
>> +INSTALL:
>> +
>> +To install trace-cmd
>> +    make install
>> +
>> +To install the gui
>> +    make install_gui
>> +
>> +Note: The default install is relative to /usr/local
>> +    The default install directory is /usr/local/bin
>> +    The default plugin directory is /usr/local/share/trace-cmd/plugins
>> +
>> +To change the default, you can set 'prefix', eg
>> +mkdir $HOME/test-trace
>> +make prefix=$HOME/test-trace
>> +make prefix=$HOME/test-trace install
>> +
>
>
> --
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