MantisBT - CMake
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IDProjectCategoryView StatusDate SubmittedLast Update
0015950CMakeCMakepublic2016-02-02 07:532016-06-10 14:31
ReporterLars Wiese 
Assigned ToKitware Robot 
PrioritynormalSeverityminorReproducibilityalways
StatusclosedResolutionmoved 
Platformx64OSWindowsOS Version7
Product VersionCMake 3.4.3 
Target VersionFixed in Version 
Summary0015950: CMAKE_SIZEOF_VOID_P is undefined on Windows 7 x64 VM (Vmware 10)
DescriptionCMAKE_SIZEOF_VOID_P is undefined on Windows 7 x64 VM (Vmware 10)
I am using CMAKE_SIZEOF_VOID_P for switching parameters for x86 or x64.
For my understanding the value is related to generator the ARCH.

I tried the generator for VS 2010 and VS2013 together with/without "<ARCH> Win64"
Steps To Reproduceif( CMAKE_SIZEOF_VOID_P EQUAL 8 )
  set (ARCH "x64")
  add_definitions("-DX86_64")
  message ("Build type: Windows x64")
else ()
  set (ARCH "x86")
  message ("Build type: Windows x86")
endif()
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Issue History
Date ModifiedUsernameFieldChange
2016-02-02 07:53Lars WieseNew Issue
2016-02-02 08:29Brad KingNote Added: 0040427
2016-02-02 20:14Ruslan BaratovNote Added: 0040428
2016-06-10 14:29Kitware RobotNote Added: 0042931
2016-06-10 14:29Kitware RobotStatusnew => resolved
2016-06-10 14:29Kitware RobotResolutionopen => moved
2016-06-10 14:29Kitware RobotAssigned To => Kitware Robot
2016-06-10 14:31Kitware RobotStatusresolved => closed

Notes
(0040427)
Brad King   
2016-02-02 08:29   
This is supposed to be set here:

 https://cmake.org/gitweb?p=cmake.git;a=blob;f=Modules/CMakeCCompiler.cmake.in;hb=v3.4.3#l44 [^]

by the code

 if(CMAKE_C_SIZEOF_DATA_PTR)
   set(CMAKE_SIZEOF_VOID_P "${CMAKE_C_SIZEOF_DATA_PTR}")
 endif()

The CMAKE_<LANG>_SIZEOF_DATA_PTR values are detected by code here:

 https://cmake.org/gitweb?p=cmake.git;a=blob;f=Modules/CMakeCompilerABI.h;hb=v3.4.3 [^]
 https://cmake.org/gitweb?p=cmake.git;a=blob;f=Modules/CMakeDetermineCompilerABI.cmake;hb=v3.4.3#l36 [^]

That should give you a starting point to trace it locally.
(0040428)
Ruslan Baratov   
2016-02-02 20:14   
Also there are variables MSVC_CXX_ARCHITECTURE_ID/MSVC_C_ARCHITECTURE_ID with values X86, x64, ARMV7.
(0042931)
Kitware Robot   
2016-06-10 14:29   
Resolving issue as `moved`.

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