2012/4/23 Brad King <brad.k...@kitware.com> > On Mon, Apr 23, 2012 at 4:45 AM, Jörg F. Unger > <joergfun...@googlemail.com> wrote: > > Hi everyone, > > I'm using windows 7 (64). I'm trying to determine the python installation > > using cmake. > > The problem is that cmake only exists as a 32 bit application. As a > > consequence, it has only access to the 32 bit registry entries (WOW64). I > > have installed python as a 64 bit application, which is not listed in > the 32 > > bit registry. > > > > By accessing > > > HKEY_LOCAL_MACHINE\\SOFTWARE\\Python\\PythonCore\\${_CURRENT_VERSION}\\InstallPath > > > > in the FinPythonLibs.cmake as the path, the 32 bit cmake does not find a > > python installation. Unfortunately, there is also no possibility to set > the > > variables (PYTHON_LIBRARY PYTHON_INCUDE_DIR) manually. If I manually add > in > > the 32 bit registry the 64 bit application (python), everything works, > > though this is just something I did to locate the problem, not a > permanent > > solution. > > > > Any ideas how to circumvent these problems? Or is there a way to build a > 64 > > bit cmake? > > At the point when you call find_package(PythonLibs) make sure you have > at least one language enabled. That way CMake knows the address size > of the toolchain's target format. That is important when searching so > CMake knows which registry view to use: > > > http://cmake.org/gitweb?p=cmake.git;a=blob;f=Source/cmFindCommon.cxx;hb=v2.8.8#l381 > > Note that the PlatformIs64Bit test is here: > > > http://cmake.org/gitweb?p=cmake.git;a=blob;f=Source/cmMakefile.cxx;hb=v2.8.8#l2195 > > -Brad >
I've tried to test this using PROJECT(NuTo CXX C Fortran) MESSAGE(STATUS "CMAKE_SIZEOF_VOID_P ${CMAKE_SIZEOF_VOID_P}") which gives 4. The problem is that I installed the 32bit version of MinGW.
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