PR libfortran/32021
	* runtime/backtrace.c (local_strcasestr): Protect by appropriate
	macros.
	* runtime/main.c (cleanup): Cast argument to free.
	* intrinsics/spread_generic.c (spread_internal): Match runtime_error
	arguments and format.
	* intrinsics/signal.c (alarm_sub_int_i4, alarm_sub_int_i8): Cast
	pointers to avoid warnings.

From-SVN: r129463