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COMPILE_DEFINITIONS
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-------------------
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Preprocessor definitions for compiling a source file.
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The COMPILE_DEFINITIONS property may be set to a semicolon-separated
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list of preprocessor definitions using the syntax VAR or VAR=value.
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Function-style definitions are not supported. CMake will
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automatically escape the value correctly for the native build system
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(note that CMake language syntax may require escapes to specify some
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values). This property may be set on a per-configuration basis using
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the name COMPILE_DEFINITIONS_<CONFIG> where <CONFIG> is an upper-case
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name (ex. "COMPILE_DEFINITIONS_DEBUG").
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CMake will automatically drop some definitions that are not supported
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by the native build tool. Xcode does not support per-configuration
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definitions on source files.
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.. include:: /include/COMPILE_DEFINITIONS_DISCLAIMER.txt
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Contents of ``COMPILE_DEFINITIONS`` may use "generator expressions"
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with the syntax ``$<...>``. See the :manual:`cmake-generator-expressions(7)`
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manual for available expressions. However, :generator:`Xcode`
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does not support per-config per-source settings, so expressions
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that depend on the build configuration are not allowed with that
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generator.
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Generator expressions should be preferred instead of setting the alternative per-configuration
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property.
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