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/****************************************************************************
**
** Copyright (c) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator
**
**
** GNU Free Documentation License
**
** Alternatively, this file may be used under the terms of the GNU Free
** Documentation License version 1.3 as published by the Free Software
** Foundation and appearing in the file included in the packaging of this
** file.
**
**
****************************************************************************/
// **********************************************************************
// NOTE: the sections are not ordered by their logical order to avoid
// reshuffling the file each time the index order changes (i.e., often).
// Run the fixnavi.pl script to adjust the links to the index order.
// **********************************************************************
/*!
\contentspage index.html
\previouspage creator-configuring-projects.html
\page creator-build-settings.html
\nextpage creator-targets.html
\title Specifying Build Settings
Different build configurations allow you to quickly switch between
different build settings. By default, \QC creates \bold debug
and \bold release build configurations. A debug build contains additional
debug symbols that you need for debugging the application but that you
can leave out from the release version. Generally, you use the debug
configuration for testing and the release configuration for creating
the final installation file.
You specify build settings in the \gui Projects mode.
To add a new build configuration, click \gui Add and select the type of
configuration you would like to add. You can add as many build
configurations as you need.
To delete the build configuration currently selected, click \gui Remove.
\section1 Editing Build Configurations
Select the build configuration to edit in the
\gui {Edit build configuration} field.
\image qtcreator-projectpane.png
By default, \QC builds projects in a separate directory from the source
directory, as \l{glossary-shadow-build} {shadow builds}. This keeps the
files generated for each \l{glossary-buildandrun-kit}{build and run kit} separate.
If you only build and run with a single \l{glossary-buildandrun-kit}{kit},
you can deselect the \gui {Shadow build}
checkbox.
Shadow building is not supported for the following device types on
Windows:
\list
\o Maemo5
\o MeeGo Harmattan
\endlist
\section1 Starting External Processes
\QC executes external processes to accomplish tasks such as building
and running applications. To execute the processes, \QC uses shell
commands that are native to the system. It constructs the commands from
an executable name and optional command line arguments.
The executable name is specified in the executable fields: \gui qmake,
\gui Make, \gui Command, or \gui Executable. It is either derived from the
project or specified manually. When you specify executables manually, you
can reference environment variables and \QC variables. However, no
quoting rules
apply.
You can specify command-line arguments in the arguments fields:
\gui {Additional arguments}, \gui {Command arguments},
\gui {Make arguments}, or \gui Arguments. You can create shell command lines
that can contain redirection and other advanced constructs. However, some
more complex use cases, such as piping test data into the application being
tested or grouping commands, are not supported because the value of the
\gui Executable field is always placed first when constructing the command.
\section2 Using Environment Variables
You can use any environment variables as values in the fields. For a list
of variable names, click \gui {Build Environment > Details} in the
\gui {Build Settings}. Environment variables are referenced using the native
syntax: $VARNAME or ${VARNAME} on Unix and %VARNAME% on Windows.
\section2 Using Qt Creator Variables
You can use \QC variables in arguments, executable paths, and working
directories. The variables take care of quoting their expansions, so you do
not need to put them in quotes.
The following \QC variables are available:
\list
\o %{buildDir}
\o %{sourceDir}
\endlist
\section1 Build Steps
The build system of \QC is built on qmake and make. In \gui{Build Steps} you
can change the settings for qmake and make. \QC runs the make command using
the Qt version defined for the current build configuration.
\image qtcreator-build-steps.png "Build steps"
To override the shell command that \QC constructs by default, disable or remove
the build step and add a custom build step that specifies another shell
command.
\section2 Adding Custom Build Steps
To add custom steps to the build settings, select \gui {Add Build Step >
Custom Process Step}.
By default, custom steps are enabled. To disable a custom step, select
the \inlineimage qtcreator-disable-steps.png
(\gui Disable) button.
\image qtcreator-build-steps-custom.png "Custom Process Step"
\section1 Clean Steps
You can use the cleaning process to remove intermediate files. This process
might help you to fix obscure issues during the process of building a
project.
\image qtcreator-clean-steps.png "Clean steps"
You can define the cleaning steps for your builds in the \gui{Clean Steps}:
\list
\o To add a clean step using make or a custom process, click
\gui{Add Clean Step} and select the type of step you want to add.
By default, custom steps are enabled. To disable a custom step,
select the \gui Disable button.
\o To remove a clean step, click \gui{Remove Item}.
\o To change the order of steps, click
\inlineimage qtcreator-movestep.png
(\gui {Move Up} and \gui {Move Down}).
\endlist
\section1 Build Environment
You can specify the environment you want to use for building in the
\bold{Build Environment} section. By default, the environment in which \QC
was started is used and modified to include the Qt version.
Depending on the selected Qt version, \QC automatically sets the
necessary environment variables. You can edit existing environment
variables or add, reset and unset new variables based on your project
requirements.
\image qtcreator-build-environment.png "Build Environment"
\note The changes are stored in the local project specific \c{.pro.user}
file. Therefore, they are not suitable for sharing between developers or
development PCs. To share settings, incorporate them into the build system.
For example, if you use qmake, make the changes in the \c{.pro} file.
\section2 Clearing the System Environment
To build with a clean system environment, select the \gui {Clear system
environment} check box. \QC discards the current environment, and
populates a clean system environment with the environment variables that the
compilers and tools need. Therefore, the environment is never totally empty,
even after you clear it.
\section1 Related Topics
\list
\o \l{Adding Kits}
\o \l{Adding Qt Versions}
\o \l{Adding Compilers}
\endlist
*/
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