[Qt-creator] optimization and file size between versions

[Duane]

On 9/27/2013 9:51 AM, Orgad Shaneh wrote:
>
> בתאריך 2013 9 27 16:49, מאת "Duane" <duane.hebert at group-upc.com
> <mailto:duane.hebert at group-upc.com>>:
>  >
>  > On 9/27/2013 9:43 AM, Ziller Eike wrote:
>  > >
>  > > On 27.09.2013, at 14:52, Duane <duane.hebert at group-upc.com
> <mailto:duane.hebert at group-upc.com>> wrote:
>  > >
>  > >> On 9/27/2013 8:21 AM, Orgad Shaneh wrote:
>  > >>>
>  > >>> בתאריך 2013 9 27 15:15, מאת "Duane" <duane.hebert at group-upc.com
> <mailto:duane.hebert at group-upc.com>
>  > >>> <mailto:duane.hebert at group-upc.com
> <mailto:duane.hebert at group-upc.com>>>:
>  > >>>>
>  > >>>> I have Qt Creator version 2.7.2 and am using Qt 4.8.4.  My
> colleague has
>  > >>>> Qt Creator version 2.4.1 and is using Qt 4.8.1.  We are both
> running the
>  > >>>> Fedora 16.  We use the same project file and this project
> doesn't use
>  > >>>> the Qt libs.
>  > >>>>
>  > >>>> The .pro file has
>  > >>>> TEMPLATE = app
>  > >>>> CONFIG += console
>  > >>>> CONFIG -= qt
>  > >>>>
>  > >>>>
>  > >>>> When he builds he gets an executable 1.5Mb.  When I build, I get an
>  > >>>> executable of 10.6Mb  Both are release builds.  We both use the same
>  > >>> libs.
>  > >>>>
>  > >>>> What can cause this?  How is optimization done here?  We build
> the same
>  > >>>> project for Windows in Visual Studio and the exe files are the
> same size
>  > >>>> but we've set the same optimization.
>  > >>>>
>  > >>>> _______________________________________________
>  > >>>> Qt-creator mailing list
>  > >>>> Qt-creator at qt-project.org <mailto:Qt-creator at qt-project.org>
> <mailto:Qt-creator at qt-project.org <mailto:Qt-creator at qt-project.org>>
>  > >>>> http://lists.qt-project.org/mailman/listinfo/qt-creator
>  > >>>
>  > >>> Can you paste the build output for both machines? A single file gcc
>  > >>> invocation and a single linker invocation should be enough (if the
>  > >>> project is not very complex).
>  > >>>
>  > >>
>  > >>
>  > >> This would be quite a bit.  It's not a simple project.  But I have
> tried
>  > >> a few things.  My Qt Creator SDK installation installed Qt 5.1.  So I
>  > >> switched the kit to use this.  My build size goes from 10.6Mb to
> 8.6Mb.
>  > >>   This was surprising.  So then I found my older version of Qt
> 4.8.1.  I
>  > >> switched to that one and my file size becomes the same as my
> Colleague.
>  > >>   1.5Mb.  So it's definitely the Qt version affecting this.  AFAIK
> these
>  > >> versions were installed with Qt Toolkits and not build manually.
>   So I'm
>  > >> not sure what the difference would be.  I would maybe understand
> this is
>  > >> I was using any Qt libs but we're not for this application.  Make
> flags
>  > >> look the same on the two systems.  I don't get it.
>  > >
>  > >
>  > > debug vs release build maybe?
>  > >
>  >
>  > I started to say no, but then again when I switch from release to debug
>  > the file size doesn't change.  Something is broken here.  But when I
>  > switch to 4.8.1 things seem ok.  I am currently building 4.8.5 to try
>  > that and see if it makes a difference.
>  >
>  > _______________________________________________
>  > Qt-creator mailing list
>  > Qt-creator at qt-project.org <mailto:Qt-creator at qt-project.org>
>  > http://lists.qt-project.org/mailman/listinfo/qt-creator
>
> Try adding "QT=" to your project.
>


Didn't help.  One thing that I do notice is that I don't see +=Release 
in the build string:

10:04:08: Starting: "/usr/bin/qmake-qt4" 
/home/duane/QtSDK/PT500Projects/visu32/visu32.pro -r -spec linux-g++
10:04:08: The process "/usr/bin/qmake-qt4" exited normally.
10:04:09: Starting: "/usr/bin/make"
g++ -c -pipe -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 
-fstack-protector --param=ssp-buffer-size=4 -m32 -march=i686 -mtune=atom 
-fasynchronous-unwind-tables -O2 -Wall -W -Wno-write-strings 
-Wno-unused-parameter -Wno-unused-variable -DBPP32 -DPT470BUILD 
-I/usr/lib/qt4/mkspecs/linux-g++ -I../visu32 
-I../../../SVN_Repos/PT470Development/src/include 
-I../../../SVN_Repos/PT470Development/OpenGUI/src 
-I../../../SVN_Repos/PT470Development/OpenGUI/src -I../visu32 -I. -o 
main.o ../../../SVN_Repos/PT470Development/src/visu32/main.cpp
...