Merge branch 'develop' into cmake-3.16

cmake/CMakeLists.txt

@@ -379,11 +379,6 @@ if(NOT ${LAMMPS_MEMALIGN} STREQUAL "0")
   target_compile_definitions(lammps PRIVATE -DLAMMPS_MEMALIGN=${LAMMPS_MEMALIGN})
 endif()
 
-option(LAMMPS_EXCEPTIONS "enable the use of C++ exceptions for error messages (useful for library interface)" ${ENABLE_TESTING})
-if(LAMMPS_EXCEPTIONS)
-  target_compile_definitions(lammps PUBLIC -DLAMMPS_EXCEPTIONS)
-endif()
-
 # "hard" dependencies between packages resulting
 # in an error instead of skipping over files
 pkg_depends(ML-IAP ML-SNAP)

cmake/Modules/LAMMPSInterfacePlugin.cmake

@@ -28,9 +28,7 @@ if(MSVC)
     add_compile_options(/Zc:__cplusplus)
     add_compile_options(/wd4244)
     add_compile_options(/wd4267)
-    if(LAMMPS_EXCEPTIONS)
-      add_compile_options(/EHsc)
-    endif()
+    add_compile_options(/EHsc)
   endif()
   add_compile_definitions(_CRT_SECURE_NO_WARNINGS)
 endif()

cmake/Modules/Tools.cmake

@@ -44,9 +44,6 @@ if(BUILD_LAMMPS_SHELL)
   endif()
   find_package(PkgConfig REQUIRED)
   pkg_check_modules(READLINE IMPORTED_TARGET REQUIRED readline)
-  if(NOT LAMMPS_EXCEPTIONS)
-    message(WARNING "The LAMMPS shell needs LAMMPS_EXCEPTIONS enabled for full functionality")
-  endif()
 
   # include resource compiler to embed icons into the executable on Windows
   if(CMAKE_SYSTEM_NAME STREQUAL "Windows")