Set Xcode target attributes directly.

Tell the Xcode generator to set <an-attribute> to a given value in the generated Xcode project. Ignored on other generators.

This offers low-level control over the generated Xcode project file. It is meant as a last resort for specifying settings that CMake does not otherwise have a way to control. Although this can override a setting CMake normally produces on its own, doing so bypasses CMake's model of the project and can break things.

See the CMAKE_XCODE_ATTRIBUTE_<an-attribute> variable to set attributes on all targets in a directory tree.

Contents of XCODE_ATTRIBUTE_<an-attribute> may use "generator expressions" with the syntax $<...>. See the cmake-generator-expressions(7) manual for available expressions. See the cmake-buildsystem(7) manual for more on defining buildsystem properties.