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List:       cmake
Subject:    Re: [CMake] Question about functions
From:       Andreas Naumann <Andreas-Naumann () gmx ! net>
Date:       2019-02-18 20:16:05
Message-ID: eb9b046a-b632-9f7a-4e07-83580f23a1c5 () gmx ! net
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Am 18.02.19 um 20:43 schrieb Workbench@gmx.at:
> Hi everyone,
> 
> i have a function like:
> 
> FUNCTION(checksyste_64Bit arg1)
> 
> IF(CMAKE_SIZEOF_VOID_P EQUAL 8)
> 
> SET(${arg1} TRUE PARENT_SCOPE)
> 
> ENDFUNCTION()
> 
> 
> but when i call it with an INTERNAL variable i've set before with
> 
> SET(SYSTEM_64BIT FALSE CACHE INTERNAL)
> 
> checksystem_64bit(${SYSTEM_64BIT})
> 
> the ${SYSTE_64BIT} variable stays the same, i thought when i use 
> PARENT_SCOPE on a variable i can change it's value from inside the 
> function ?
> 
> 
> best regards!
> 
You should call your function without dollar and braces around the 
variable, i.e.

   checksystem_64bit(SYSTEM_64BIT)

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