Jim Wilson b971fa7f33 Fix for SPEC CPU2017 621.wrf_s failure, add missing locking code.
libgfortran/
	PR libfortran/81195
	* io/unit.c (get_unit): Call __gthread_mutex_lock before newunit_stack
	and newunit_tos references.  Call __gthread_mutex_unlock afterward.

From-SVN: r249667
2017-06-26 14:40:47 -07:00
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