is gcc supported only

Engineering
1

itk 5.1.2 is installed. In a generated file itk_compiler_detection.h, i saw a few lines:

if ITK_COMPILER_IS_GNU

include “compilers/ITK_COMPILER_INFO_GNU_CXX.h”

else

error Unsupported compiler

endif

Does this mean only GCC compiler is supported?

2

Hi @hfeng ,

No, GCC, Clang, Intel, Visual Studio, etc. can be used. This check is to avoid changing compilers in a build, which may be incompatible.

3

Thanks for the answer.
In my case, itk5.1.2 is already installed. And I am trying to compile something using icc. Then this error information appeared. What could be the reasons?

4

In the code, itkImage.h is used, and by tracing back layer by layer, itk.Configure.h is used where #include “itk_compiler_detection.h” is used. So this error happened.

5

That error is a conscience effort to prevent subtle compile incompatibility bugs. I think the conclusion is to build ITK using ICC and use it instead of the system one compiled with GCC.

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