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Help: Describe definition values in target_compile_definitions

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Fixes: #20573
This commit is contained in:
Juan Ramos
2020-11-28 13:42:46 -05:00
committed by Brad King
parent bcf19af5c7
commit 4b9fcadc9a
1 changed files with 9 additions and 0 deletions
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9
Help/command/target_compile_definitions.rst
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@@ -39,3 +39,12 @@ For example, the following are all equivalent:
target_compile_definitions(foo PUBLIC -DFOO) # -D removed
target_compile_definitions(foo PUBLIC "" FOO) # "" ignored
target_compile_definitions(foo PUBLIC -D FOO) # -D becomes "", then ignored
Definitions may optionally have values:
.. code-block:: cmake
target_compile_definitions(foo PUBLIC FOO=1)
Note that many compilers treat ``-DFOO`` as equivalent to ``-DFOO=1``, but
other tools may not recognize this in all circumstances (e.g. IntelliSense).