[CMake] Append to property COMPILE_DEFINITIONS

[Florian Lindner]

Am 18.07.2017 um 10:59 schrieb Craig Scott:
> You appear to be setting a GLOBAL property where you probably meant DIRECTORY. You could also consider setting the
> target property instead rather than applying it to all targets (unless that's what you want).

I tried to set the property on all targets, therefore I thought GLOBAL is the right thing.

However,

set_property(DIRECTORY "${CMAKE_SOURCE_DIR}/src" APPEND
  PROPERTY COMPILE_DEFINITIONS "-DFOO")

hasn't had any effect either.

set_property(TARGET testprecice APPEND
  PROPERTY COMPILE_DEFINITIONS "FOO")

works. But setting it on all targets is exactly what I want. How can I do that?

Best,
Florian

> 
> 
> On Tue, Jul 18, 2017 at 12:56 PM, Florian Lindner <mailinglists at xgm.de <mailto:mailinglists at xgm.de>> wrote:
> 
>     Hello,
> 
>     I want to add compile definitions. Since I want to use generator expressions, I can't use add_definitions, but have to
>     use the COMPILE_DEFINITIONS property, but neither:
> 
>     set_property(GLOBAL APPEND
>       PROPERTY COMPILE_DEFINITIONS "-DFOO")
> 
>     for testing
> 
>     or
> 
>     set_property(GLOBAL APPEND
>       PROPERTY COMPILE_DEFINITIONS $<$<CONFIG:Debug>:-DDebug>)
> 
>     which should be final result, produces any -DFOO compiler switches.
> 
>     I also tried placing it before and after the add_executable call.
> 
>     What is wrong with that call?
> 
>     Thanks,
>     Florian
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> Craig Scott
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> https://crascit.com