2014-01-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	PR libfortran/63471
        * config/pa/pa-hpux11.h (TARGET_OS_CPP_BUILTINS): Define _REENTRANT
        when _HPUX_SOURCE is defined.

Index: config/pa/pa-hpux11.h
===================================================================
--- config/pa/pa-hpux11.h	(revision 216000)
+++ config/pa/pa-hpux11.h	(working copy)
@@ -40,6 +40,7 @@
 	if (c_dialect_cxx ())						\
 	  {								\
 	    builtin_define ("_HPUX_SOURCE");				\
+	    builtin_define ("_REENTRANT");				\
 	    builtin_define ("_INCLUDE_LONGLONG");			\
 	    builtin_define ("__STDCPP__");				\
 	  }								\
@@ -48,6 +49,7 @@
 	    if (!flag_iso)						\
 	      {								\
 		builtin_define ("_HPUX_SOURCE");			\
+		builtin_define ("_REENTRANT");				\
 		if (preprocessing_trad_p ())				\
 		  {							\
 		    builtin_define ("hp9000s800");			\