GPU CMake: Force using alidist GCC for host compilation of CUDA/HIP code

[davidrohr]

No description provided.

[github-actions]

REQUEST FOR PRODUCTION RELEASES:
To request your PR to be included in production software, please add the corresponding labels called "async-" to your PR. Add the labels directly (if you have the permissions) or add a comment of the form (note that labels are separated by a ",")

+async-label <label1>, <label2>, !<label3> ...

This will add <label1> and <label2> and removes <label3>.

The following labels are available
async-2023-pbpb-apass4
async-2023-pp-apass4
async-2024-pp-apass1
async-2022-pp-apass7
async-2024-pp-cpass0
async-2024-PbPb-apass1
async-2024-ppRef-apass1
async-2024-PbPb-apass2
async-2023-PbPb-apass5

[alibuild]

Error while checking build/O2/fullCI_slc9 for 623391b at 2025-08-14 10:31:

++ export ROOTSYS=/sw/slc9_x86-64/ROOT/v6-32-06-alice9-4
++ ROOTSYS=/sw/slc9_x86-64/ROOT/v6-32-06-alice9-4
++ [[ -n /alidist ]]
++ [[ -f /alidist/resources/FindO2GPU.cmake ]]
++ cmp -s /alidist/resources/FindO2GPU.cmake /sw/SOURCES/O2/14581-slc9_x86-64/0/dependencies/FindO2GPU.cmake
+++ grep '# FindO2GPU.cmake Version ' /alidist/resources/FindO2GPU.cmake
+++ awk '{print $4}'
+++ grep '# FindO2GPU.cmake Version ' /sw/SOURCES/O2/14581-slc9_x86-64/0/dependencies/FindO2GPU.cmake
+++ awk '{print $4}'
++ [[ ! 1 -gt 1 ]]
++ echo 'FindO2GPU.cmake differs in O2 compared to alidist'
FindO2GPU.cmake differs in O2 compared to alidist
++ exit 1

Full log here.

[alibuild]

Error while checking build/O2/fullCI_slc9 for 3ed1107 at 2025-08-20 15:35:

[ 93%] Building CXX object GPU/GPUTracking/CMakeFiles/GPUTracking.dir/DataTypes/TPCZSLinkMapping.cxx.o
[ 94%] Building CXX object GPU/GPUTracking/CMakeFiles/GPUTracking.dir/DataTypes/CalibdEdxContainer.cxx.o
[ 95%] Building CXX object GPU/GPUTracking/CMakeFiles/GPUTracking.dir/DataTypes/CalibdEdxTrackTopologyPol.cxx.o
[ 95%] Building CXX object GPU/GPUTracking/CMakeFiles/GPUTracking.dir/DataTypes/CalibdEdxTrackTopologySpline.cxx.o
[ 96%] Building CXX object GPU/GPUTracking/CMakeFiles/GPUTracking.dir/DataTypes/GPUTRDTrackO2.cxx.o
[ 97%] Linking CXX shared library libGPUTracking.so
[ 97%] Built target GPUTracking
[ 99%] Building CXX object GPU/GPUTracking/Standalone/Benchmark/CMakeFiles/ca.dir/standalone.cxx.o
[ 99%] Building CXX object GPU/GPUTracking/Standalone/Benchmark/CMakeFiles/ca.dir/sw/SOURCES/O2/14581-slc9_x86-64/0/GPU/GPUTracking/utils/qconfig.cxx.o
[ 99%] Building CXX object GPU/GPUTracking/Standalone/Benchmark/CMakeFiles/ca.dir/sw/SOURCES/O2/14581-slc9_x86-64/0/GPU/GPUTracking/Base/GPUReconstructionTimeframe.cxx.o
[100%] Linking CXX executable ca
[100%] Built target ca
Install the project...
-- Install configuration: "RELEASE"
-- Installing: /sw/BUILD/db0c40b1087a98058173fbb3b84a61cabaa927cf/O2/standalone/libGPUTracking.so
-- Set non-toolchain portion of runtime path of "/sw/BUILD/db0c40b1087a98058173fbb3b84a61cabaa927cf/O2/standalone/libGPUTracking.so" to "/sw/BUILD/db0c40b1087a98058173fbb3b84a61cabaa927cf/O2/standalone"
-- Installing: /sw/BUILD/db0c40b1087a98058173fbb3b84a61cabaa927cf/O2/standalone/include/GPU/GPUReconstructionKernelList.h
-- Installing: /sw/BUILD/db0c40b1087a98058173fbb3b84a61cabaa927cf/O2/standalone/include/GPU/GPUReconstructionKernelIncludes.h
-- Installing: /sw/BUILD/db0c40b1087a98058173fbb3b84a61cabaa927cf/O2/standalone/include/GPU/GPUReconstructionIncludesDeviceAll.h
-- Installing: /sw/BUILD/db0c40b1087a98058173fbb3b84a61cabaa927cf/O2/standalone/include/GPU/GPUDefParametersRuntime.h
-- Installing: /sw/BUILD/db0c40b1087a98058173fbb3b84a61cabaa927cf/O2/standalone/include/GPU/GPUDefParametersLoad.inc
-- Installing: /sw/BUILD/db0c40b1087a98058173fbb3b84a61cabaa927cf/O2/standalone/include/GPU/GPUDefParametersLoadPrepare.h
-- Installing: /sw/BUILD/db0c40b1087a98058173fbb3b84a61cabaa927cf/O2/standalone/share/GPU/arch_param/gpu_const_param_AMPERE.par
-- Installing: /sw/BUILD/db0c40b1087a98058173fbb3b84a61cabaa927cf/O2/standalone/share/GPU/arch_param/gpu_const_param_TURING.par
-- Installing: /sw/BUILD/db0c40b1087a98058173fbb3b84a61cabaa927cf/O2/standalone/share/GPU/arch_param/gpu_const_param_VEGA.par
-- Installing: /sw/BUILD/db0c40b1087a98058173fbb3b84a61cabaa927cf/O2/standalone/share/GPU/arch_param/gpu_const_param_MI2xx.par
-- Installing: /sw/BUILD/db0c40b1087a98058173fbb3b84a61cabaa927cf/O2/standalone/ca
-- Set non-toolchain portion of runtime path of "/sw/BUILD/db0c40b1087a98058173fbb3b84a61cabaa927cf/O2/standalone/ca" to "/sw/BUILD/db0c40b1087a98058173fbb3b84a61cabaa927cf/O2/standalone"
-- Installing: /sw/BUILD/db0c40b1087a98058173fbb3b84a61cabaa927cf/O2/standalone/libTPCFastTransformation.so
-- Set non-toolchain portion of runtime path of "/sw/BUILD/db0c40b1087a98058173fbb3b84a61cabaa927cf/O2/standalone/libTPCFastTransformation.so" to "/sw/BUILD/db0c40b1087a98058173fbb3b84a61cabaa927cf/O2/standalone"
-- Installing: /sw/BUILD/db0c40b1087a98058173fbb3b84a61cabaa927cf/O2/standalone/libstandalone_support.so
-- Set non-toolchain portion of runtime path of "/sw/BUILD/db0c40b1087a98058173fbb3b84a61cabaa927cf/O2/standalone/libstandalone_support.so" to "/sw/BUILD/db0c40b1087a98058173fbb3b84a61cabaa927cf/O2/standalone"
/sw/BUILD/db0c40b1087a98058173fbb3b84a61cabaa927cf/O2
++ mkdir -p etc/modulefiles
++ cat
+++ [[ slc == osx ]]
++ mkdir -p /sw/slc9_x86-64/O2/14581-slc9_x86-64-local1/etc/modulefiles
++ rsync -a --delete etc/modulefiles/ /sw/slc9_x86-64/O2/14581-slc9_x86-64-local1/etc/modulefiles
++ [[ -n '' ]]
++ [[ -n /alidist ]]
++ [[ -f /alidist/resources/FindO2GPU.cmake ]]
++ cmp -s /alidist/resources/FindO2GPU.cmake /sw/SOURCES/O2/14581-slc9_x86-64/0/dependencies/FindO2GPU.cmake
+++ grep '# FindO2GPU.cmake Version ' /alidist/resources/FindO2GPU.cmake
+++ awk '{print $4}'
+++ grep '# FindO2GPU.cmake Version ' /sw/SOURCES/O2/14581-slc9_x86-64/0/dependencies/FindO2GPU.cmake
+++ awk '{print $4}'
++ [[ ! 1 -gt 2 ]]
++ echo 'FindO2GPU.cmake differs in O2 compared to alidist'
FindO2GPU.cmake differs in O2 compared to alidist
++ exit 1

Full log here.