Unsuccessful compile - libG4ToolsSG: fat file missing arch 'arm64', file has 'i386,x86_64'

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Geant4 Version: 4.11.3.2
Operating System: MacOS 26.2
Compiler/Version: Apple clang version 17.0.0 (clang-1700.6.3.2)
CMake Version: 4.2.1

Fresh compile on a new M4 laptop had multiple instances of failing while linking shared libraries. Compiled using “make -j10”. The first problem library was the following:

Linking CXX shared library ../BuildProducts/lib/libG4ToolsSG.dylib

with the errors:

‘‘‘

Undefined symbols for architecture arm64:
“_glXChooseVisual”, referenced from:
toolx::X11::session::session(std::__1::basic_ostream<char, std::__1::char_traits>&, unsigned int) in G4ToolsSGX11GLES.cc.o
toolx::X11::session::session(std::__1::basic_ostream<char, std::__1::char_traits>&, unsigned int) in G4ToolsSGX11GLES.cc.o
“_glXCreateContext”, referenced from:
toolx::X11::session::session(std::__1::basic_ostream<char, std::__1::char_traits>&, unsigned int) in G4ToolsSGX11GLES.cc.o
toolx::X11::session::session(std::__1::basic_ostream<char, std::__1::char_traits>&, unsigned int) in G4ToolsSGX11GLES.cc.o
“_glXDestroyContext”, referenced from:
toolx::X11::session::~session() in G4ToolsSGX11GLES.cc.o
“_glXMakeCurrent”, referenced from:
toolx::X11::sg_viewer::win_render() in G4ToolsSGX11GLES.cc.o
toolx::X11::sg_viewer::win_render() in G4ToolsSGX11GLES.cc.o
“_glXQueryVersion”, referenced from:
toolx::X11::session::session(std::__1::basic_ostream<char, std::__1::char_traits>&, unsigned int) in G4ToolsSGX11GLES.cc.o
“_glXSwapBuffers”, referenced from:
toolx::X11::sg_viewer::win_render() in G4ToolsSGX11GLES.cc.o
ld: symbol(s) not found for architecture arm64
clang++: error: linker command failed with exit code 1 (use -v to see invocation)

Included is the CMakeCache.txt.

CMakeCache.txt (96.8 KB)

Thanks,

Karl

2

First glace is that this is an Apple Silicon/X11 conflict. As a first step what happens if you just disable X11? i.e.

cmake -DCMAKE_INSTALL_PREFIX=$GEANT4_INSTALL \
      -DGEANT4_USE_OPENGL_X11=OFF \
      -DGEANT4_USE_QT=OFF \
      ../geant4.11.3.2

Toggle on or off QT as you want.

3

Thanks for the fast reply.

cmake -DCMAKE_INSTALL_PREFIX=$GEANT4_INSTALL
-DGEANT4_USE_OPENGL_X11=OFF
../geant4.11.3.2

The above “OFF” solved the problem.

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