HelloWorldITK on macOS Sequoia 15.0.1 cannot find stdio.h

Beginner Questions
1

On macOS 15.0.1, I’m building up to compiling the HelloWorldITK code by starting with the very basic HelloWorld that works just fine.

CMakeLists.txt:

cmake_minimum_required(VERSION 3.10)
project(HelloWorld) 
add_executable(${PROJECT_NAME} main.cxx)

main.cxx:

#include <iostream>
int main() {
    std::cout << "Hello, World!" << std::endl;
    return 0;
}

But even without adding #include "itkImage.h" to main.cxx, when I just add this to CMakeLists.txt:

find_package(ITK REQUIRED)
include(${ITK_USE_FILE})

After cmake .. and make, I get errors like

% make
[ 50%] Building CXX object CMakeFiles/HelloWorld.dir/main.cxx.o
In file included from HelloWorld/main.cxx:1:
In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.1.sdk/usr/include/c++/v1/iostream:43:
In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.1.sdk/usr/include/c++/v1/ios:223:
In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.1.sdk/usr/include/c++/v1/__locale:15:
In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.1.sdk/usr/include/c++/v1/__memory/shared_ptr.h:14:
In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.1.sdk/usr/include/c++/v1/__compare/compare_three_way.h:13:
In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.1.sdk/usr/include/c++/v1/__compare/three_way_comparable.h:12:
In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.1.sdk/usr/include/c++/v1/__compare/common_comparison_category.h:15:
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.1.sdk/usr/include/c++/v1/cstddef:46:5: error: tried including <stddef.h> but didn’t find libc++'s <stddef.h> header. This usually means that your header search paths are not configured properly. The header search paths should contain the C++ Standard Library headers before any C Standard Library, and you are probably using compiler flags that make that not be the case.

ITK was installed with homebrew

2

What happens if you add this to your CMakeLists.txt:

3

Thanks, Dženan. Adding that didn’t seem to change anything.

Using verbose cmake/make commands, I was able to see the compilation step:

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++ \
-DH5_BUILT_AS_DYNAMIC_LIB \
-DITK_FFTIMAGEFILTERINIT_FACTORY_REGISTER_MANAGER \
-DITK_IMAGEIO_FACTORY_REGISTER_MANAGER \
-DITK_MESHIO_FACTORY_REGISTER_MANAGER \
-DITK_TRANSFORMIO_FACTORY_REGISTER_MANAGER \
-Dkiss_fft_scalar=double \
-I/Users/andy/HelloWorld/build/ITKFactoryRegistration \
-I/Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/usr/include \
-isystem /usr/local/include \
-isystem /usr/local/include/gdcm-3.0 \
-isystem /usr/local/include/ITK-5.3 \
-isystem /usr/local/include/eigen3 \
-isystem /usr/local/include/vtk-9.3 \
-isystem /usr/local/include/vtk-9.3/vtkfreetype/include \
-std=c++14 \
-isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.1.sdk \
-mmacosx-version-min=15.0 \
-MD \
-MT CMakeFiles/HelloWorld.dir/main.cxx.o \ 
-MF CMakeFiles/HelloWorld.dir/main.cxx.o.d \
-o CMakeFiles/HelloWorld.dir/main.cxx.o \
-c /Users/andy/ITK/HelloWorld/main.cxx

That command works if I take out the line

-I/Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk/usr/include \

So it looks like the find_package(ITK REQUIRED) is adding more than it should. My computer is set to use MacOSX15.sdk – I don’t know where the “14” is coming from. But even if I change that line to use “15” instead, it gets the same error. ¯_(ツ)_/¯

4

Homebrew’s version might be compiled with v14 SDK.

Someone more familiar with MacOS might have advice. Maybe @seanm?

1 Like
5

Thanks for the tip! I was able to get it to work by adding these lines to CMakeLists.txt:

# Set the macOS deployment target
set(CMAKE_OSX_DEPLOYMENT_TARGET "14.5" CACHE STRING "Minimum OS X deployment version")

# Specify the path to the desired SDK
set(CMAKE_OSX_SYSROOT /Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk)
1 Like