Build error with 64-bit Qt

Engineering
1

I am trying to build a Qt program on Windows7 with 64-bit Qt, ITK and VTK. I have done this before, several years ago, and I suspect that I’ve forgotten a key step.

I’m using a CMakeLists.txt file, and after setting the environment variables appropriately I invoke QtCreator like this:

QtCreator CMakeLists.txt

The build gives 10 errors, all the same:

c:\program files\itk4.8.0\include\itk-4.8\itkMathDetail.h:286: error: C3861: ‘_mm_cvtsd_si64’: identifier not found

Can somebody tell me what causes this error?

Thanks, Gib

2

Looks like you built ITK with a non-64-bit compiler.

3

The build in c:\program files\itk4.8.0 is 64-bit.

4

I had the very same issue a few days ago, and the cause was mixing 32-bit and 64-bit compilations building a remote module against ITK. If you are sure that this is not the cause, then I’m short of ideas.

5

I have given up using QtCreator to build, and instead after setting the various environment variables I’m using
cmake -G “Visual Studio 10 Win64”
to create the VS project files - this works. QtCreator is great for straight 32-bit Qt projects, and I know how to link in 32-bit VTK libraries, but adding ITK to the mix makes things more complicated.

6

There are some “issues” using QtCreator with CMake as QtCreator likes to make some assumptions about the compiler but I know it is possible because our project uses Qt 5.9/10 and ITK 4.13 and is ONLY built as a 64 bit application. We use ninja as the generator inside of QtCreator on Windows 10 x64 with both the VS2015 and VS2017 toolchains.

Also one can use a 32 bit compiler to generate a 64 bit application. Mostly* the compiler itself has nothing to do with the ability to create 32 or 64 bit applications.

  • if you have a REALLY large project then the 32 bit compiler just may run out of memory when linking. We used the VS2013 community version for years which ONLY had a 32 bit compiler to produce our 64 bit applications.
1 Like
7

I have a vague memory of needing to supply a command-line option to cmake when using it inside QtCreator, but it’s fallen to the bottom of the memory pool. I know it’s possible because I built this program some years ago. Anyway, since I can build outside of QtCreator it’s not a serious problem. I can still use QtCreator to edit the ui file, which is its great strength.

I was not aware that I didn’t need “Win64” to build 64-bit programs.