carbidecpp22devenv/configuration/org.eclipse.osgi/bundles/309/1/.cp/reference/cdt_u_prop_build_environment.htm
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<h1>C/C++ Project Properties, Environment</h1>
Customizes the build environment for all projects in the workspace; it lets you control the environment variables used by the build.
<p><img img="" src="../images/prop_environment.png"
alt="C/C++ Project Properties, Environment"></p>
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<caption><b>Environment preference options</b></caption>
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<td><b>Configuration</b></td>
<td><a href="cdt_u_prop_all.htm">Click here for a description.</a></td>
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<td><b>Manage configurations</b></td>
<td><a href="cdt_u_prop_all.htm">Click here for a description.</a></td>
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<td><b>Environment variables to set</b></td>
<td>Shows the current list of environment variables and their corresponding value. These are the environment variable values used when building.</td>
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<td><b>Variable</b></td>
<td>Specifies the name of the environment variable.</td>
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<td><b>Value</b></td>
<td>Specifies the value of the environment variable.</td>
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<td><b>Append variables to native environment</b></td>
<td>Appends the variables to the native environment during its execution.</td>
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<td><b>Replace native environment with specified one </b></td>
<td>Replaces the native environment with the specified variables, and then restores the native environment upon its completion.</td>
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<td><b>New</b></td>
<td>Opens a dialog to create a new environment variable and value. Custom environment variables that you create appear in bold within the list.
<p><img img="" src="../images/cdt_buildenv_newenvvar.png" alt="C/C++ Project Properties, Environment, New environment variable"></p> <br>
<p>Click <b>Variables</b> to Select variables by name to include in the value. Select <b>Add to all configurations</b> to make this new environment variable available to all configurations for the selected project; otherwise, the variable is only available for the currently selected configuration.</p>
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<td><b>Select</b></td>
<td>Opens the Select variables dialog where you can choose from a list of system variables.
<p><img img="" src="../images/cdt_buildenv_selectvar.png" alt="C/C++ Project Properties, Environment, New environment variable"></p></td>
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<td><b>Edit</b></td>
<td>Modifies the name and value of the selected environment variable.</td>
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<td><b>Remove</b></td>
<td>Removes the selected environment variables from the list.</td>
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<td><b>Undefine</b></td>
<td>Undefines the currently selected variable; however, some variables, such as the PATH variable, cannot be undefined.
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<p style="margin-top: 0pt; margin-bottom: 0pt;"><img border="0"
src="../images/ngref.gif" alt="Related reference" width="143"
height="21"><br>
<ul>
<li><a href="cdt_u_prop_resource.htm">Project Properties, Resource page</a>
<li><a href="cdt_u_prop_builders.htm">Project Properties, Builders page</a>
<li><a href="cdt_u_prop_all.htm">Project Properties, common C/C++ Configurations handling</a>
<ul type="disc">
<li><a href="cdt_u_prop_manage_dialog.htm">Manage Configurations dialog</a>
<li><a href="cdt_u_prop_manage_newdialog.htm">Create Configuration dialog</a>
<li><a href="cdt_u_prop_manage_rendialog.htm">Rename Configuration dialog</a>
</ul>
<li><a href="cdt_u_prop_build.htm">Project Properties, C/C++ Build category</a>
<ul type="disc">
<li><a href="cdt_u_prop_build_discovery.htm">Discovery options page</a>
<li><a href="cdt_u_prop_build_environment.htm">Environment page</a>
<li>Settings page
<ul>
<li><a href="cdt_u_prop_build_settings_tool.htm"> Tool Settings tab</a>
<li><a href="cdt_u_prop_build_settings_steps.htm"> Build Steps tab</a>
<li><a href="cdt_u_prop_build_settings_artifact.htm"> Build Artifact tab</a>
<li><a href="cdt_u_prop_build_settings_binparser.htm">Binary Parsers tab</a>
<li><a href="cdt_u_prop_build_settings_errparser.htm">Error Parsers tab</a>
</ul>
<li><a href="cdt_u_prop_build_toolchain.htm">Tool chain editor page</a>
<li><a href="cdt_u_prop_build_variables.htm">Variables page</a>
</ul>
<li>Project Properties, <a href="cdt_u_prop_general.htm">C/C++ General category</a>
<ul type="disc">
<li><a href="cdt_u_prop_general_doc.htm">Documentation page</a>
<li><a href="cdt_u_prop_general_exp.htm">Export Settings page</a>
<!--ul>
<li><a href="cdt_u_prop_general_exp_inc.htm">Includes tab</a>
<li><a href="cdt_u_prop_general_exp_sym.htm">Symbols tab</a>
<li><a href="cdt_u_prop_general_exp_lib.htm">Libraries tab</a>
<li><a href="cdt_u_prop_general_exp_libpath.htm">Libraries path tab</a>
</ul-->
<li><a href="cdt_u_prop_general_typ.htm">File Types page</a>
<li><a href="cdt_u_prop_general_idx.htm">Indexer page</a>
<li><a href="cdt_u_prop_general_lng.htm">Language Mapping page</a>
<li>Paths and Symbols page
<ul>
<li><a href="cdt_u_prop_general_pns_inc.htm">Includes tab</a>
<li><a href="cdt_u_prop_general_pns_sym.htm">Symbols tab</a>
<li><a href="cdt_u_prop_general_pns_lib.htm">Libraries tab</a>
<li><a href="cdt_u_prop_general_pns_libpath.htm">Libraries path tab</a>
<li><a href="cdt_u_prop_general_pns_src.htm">Source Location tab</a>
<li><a href="cdt_u_prop_general_pns_out.htm">Output Location tab</a>
<li><a href="cdt_u_prop_general_pns_ref.htm">References tab</a>
<li><a href="cdt_u_prop_general_pns_hier.htm">Data Hierarchy tab</a>
</ul>
</ul>
<li><a href="cdt_u_prop_ref.htm">C/C++ Project Properties, Project References page</a>
<li><a href="cdt_u_prop_rundebug.htm">C/C++ Project Properties, Run/Debug Settings page</a>
</ul>
</p>
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