message: fix: add template depth flag for PGI
diff: @@ -157,6 +157,12 @@ blt_append_custom_compiler_flag(FLAGS_VAR AXOM_ALLOW_TRUNCATING_CONSTANTS
  )
  list(APPEND custom_compiler_flags_list AXOM_ALLOW_TRUNCATING_CONSTANTS)
  +# Fix for https://github.com/LLNL/axom/issues/559
  +blt_append_custom_compiler_flag(FLAGS_VAR CMAKE_CXX_FLAGS
  + DEFAULT " "
  + PGI "-Wc,--pending_instantiations=900"
  + )
  +
  blt_append_custom_compiler_flag(FLAGS_VAR CMAKE_CXX_FLAGS_DEBUG
  DEFAULT " "
  CLANG "-fstandalone-debug"
  @@ -185,4 +191,3 @@ endif()
  if(WIN32)
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${AXOM_ALLOW_CONSTANT_CONDITIONALS}")
  endif()
  -
  