NVCC unable to handle locale exception

[chapman39]

I've been attempting to build Axom on Lassen with clang14 and cuda support and get this locale error again seen here: https://github.com/LLNL/axom/pull/1171/files#diff-9cbc3def786cf3e15b52e3f729f1f8dec777b707e27af0dfa285d152d2b13ca8

/usr/WS2/meemee/spack/spack/var/spack/stage/spack-stage-axom-develop-et6ljgi5ofzmhxrcjtafatxc6g2syy7g/spack-src/src/axom/core/utilities/System.cpp(96): error: no instance of constr
            uctor "std::locale::locale" matches the argument list
     329                argument types are: (const std::string)

Unfortunately the solution provided in the previous PR was not sufficient for NVCC. I'm not sure why yet, but I wanted to track it here.

One solution provided by @white238 is to compile this file as a CXX file, but maybe this can be handled in a different way. Solution diff below:

diff --git a/src/axom/core/CMakeLists.txt b/src/axom/core/CMakeLists.txt
index 2090d7e2f..211683be8 100644
--- a/src/axom/core/CMakeLists.txt
+++ b/src/axom/core/CMakeLists.txt
@@ -122,6 +122,9 @@ axom_add_library(NAME        core
                  FOLDER      axom/core
                  )
 
+# Set file back to C++ due to nvcc compiler error
+set_source_files_properties(utilities/System.cpp PROPERTIES LANGUAGE CXX)
+
 # Basic includes that should be inherited to all Axom targets
 target_include_directories(core PUBLIC 
     $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/../..>

[kennyweiss]

Thanks @chapman39 -- locales are the gift that keep giving!

Assuming the proposed solution passes all CI, it looks good to me.

Is there a way to check the LANGUAGE that CMake thinks this file has before the change? Is it CUDA?

[chapman39]

@kennyweiss yes its CUDA

[chapman39]

Sounds good! I'll create a pr for it soon