Merge pull request #3228 from chuckatkins/update-dill

  endif()

endif()

# -O3 is known to crash some flavors of clang 14.

if(CMAKE_C_COMPILER_ID MATCHES "Clang" AND

   CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 14.0.0)

  foreach(_var_suffix IN ITEMS "" _DEBUG _RELEASE _RELWITHDEBINFO _MINSIZEREL)

    string(REGEX REPLACE "-O(2|3)" "-O" CMAKE_C_FLAGS${_var_suffix}

      "${CMAKE_C_FLAGS${_var_suffix}}")

  endforeach()

endif()

# Setup shared library defaults.  If explicitly specified somehow, then default 

# to that.  Otherwise base the default on whether or not shared libs are even

# supported.