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49 lines
1.3 KiB
49 lines
1.3 KiB
add_compile_options
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-------------------
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Add options to the compilation of source files.
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.. code-block:: cmake
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add_compile_options(<option> ...)
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Adds options to the :prop_dir:`COMPILE_OPTIONS` directory property.
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These options are used when compiling targets from the current
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directory and below.
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Arguments
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^^^^^^^^^
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Arguments to ``add_compile_options`` may use "generator expressions" with
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the syntax ``$<...>``. See the :manual:`cmake-generator-expressions(7)`
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manual for available expressions. See the :manual:`cmake-buildsystem(7)`
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manual for more on defining buildsystem properties.
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.. include:: OPTIONS_SHELL.txt
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Example
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^^^^^^^
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Since different compilers support different options, a typical use of
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this command is in a compiler-specific conditional clause:
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.. code-block:: cmake
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if (MSVC)
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# warning level 4 and all warnings as errors
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add_compile_options(/W4 /WX)
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else()
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# lots of warnings and all warnings as errors
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add_compile_options(-Wall -Wextra -pedantic -Werror)
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endif()
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See Also
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^^^^^^^^
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This command can be used to add any options. However, for
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adding preprocessor definitions and include directories it is recommended
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to use the more specific commands :command:`add_compile_definitions`
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and :command:`include_directories`.
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The command :command:`target_compile_options` adds target-specific options.
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