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18.21.6 Macros for VMS Debug Format

Here are macros for VMS debug format.

Macro: VMS_DEBUGGING_INFO

Define this macro if GCC should produce debugging output for VMS in response to the -g option. The default behavior for VMS is to generate minimal debug info for a traceback in the absence of -g unless explicitly overridden with -g0. This behavior is controlled by TARGET_OPTION_OPTIMIZATION and TARGET_OPTION_OVERRIDE.