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Diffstat (limited to 'Help/command/add_definitions.rst')
| -rw-r--r-- | Help/command/add_definitions.rst | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/Help/command/add_definitions.rst b/Help/command/add_definitions.rst index 4c72752..a9a6bf5 100644 --- a/Help/command/add_definitions.rst +++ b/Help/command/add_definitions.rst @@ -7,13 +7,21 @@ Adds -D define flags to the compilation of source files. add_definitions(-DFOO -DBAR ...) -Adds flags to the compiler command line for sources in the current +Adds definitions to the compiler command line for sources in the current directory and below. This command can be used to add any flags, but -it was originally intended to add preprocessor definitions. Flags +it is intended to add preprocessor definitions. Flags beginning in -D or /D that look like preprocessor definitions are -automatically added to the COMPILE_DEFINITIONS property for the -current directory. Definitions with non-trivial values may be left in -the set of flags instead of being converted for reasons of backwards -compatibility. See documentation of the directory, target, and source -file COMPILE_DEFINITIONS properties for details on adding preprocessor -definitions to specific scopes and configurations. +automatically added to the :prop_dir:`COMPILE_DEFINITIONS` directory +property for the current directory. Definitions with non-trivial values +may be left in the set of flags instead of being converted for reasons of +backwards compatibility. See documentation of the +:prop_dir:`directory <COMPILE_DEFINITIONS>`, +:prop_tgt:`target <COMPILE_DEFINITIONS>`, +:prop_sf:`source file <COMPILE_DEFINITIONS>` ``COMPILE_DEFINITIONS`` +properties for details on adding preprocessor definitions to specific +scopes and configurations. + +Arguments to ``add_definitions`` may use "generator expressions" with +the syntax "$<...>". See the :manual:`cmake-generator-expressions(7)` +manual for available expressions. See the :manual:`cmake-buildsystem(7)` +manual for more on defining buildsystem properties. |