re PR lto/83452 (FAIL: gfortran.dg/save_6.f90 -O0 (test for excess errors))

PR lto/83452
	* config/pa/stublib.c (L_gnu_lto_v1): New stub definition.
	* config/pa/t-stublib (gnu_lto_v1-stub.o): Add make fragment.

From-SVN: r256933

libgcc/ChangeLog

@@ -1,3 +1,9 @@
+2018-01-21  John David Anglin  <danglin@gcc.gnu.org>
+
+	PR lto/83452
+	* config/pa/stublib.c (L_gnu_lto_v1): New stub definition.
+	* config/pa/t-stublib (gnu_lto_v1-stub.o): Add make fragment.
+	
 2018-01-13  Richard Sandiford  <richard.sandiford@linaro.org>
 
 	* config/aarch64/value-unwind.h (aarch64_vg): New function.

libgcc/config/pa/stublib.c

@@ -115,3 +115,7 @@ pthread_once (void)
   return 0;
 }
 #endif
+
+#ifdef L_gnu_lto_v1
+char gnu_lto_v1;
+#endif

libgcc/config/pa/t-stublib

@@ -3,7 +3,8 @@ LIBGCCSTUB_OBJS = rfi-stub.o dfi-stub.o ritm-stub.o ditm-stub.o \
 	pthread_default_stacksize_np-stub.o \
 	pthread_mutex_lock-stub.o \
 	pthread_mutex_unlock-stub.o \
-	pthread_once-stub.o
+	pthread_once-stub.o \
+	gnu_lto_v1-stub.o
 
 rfi-stub.o: $(srcdir)/config/pa/stublib.c
 	$(gcc_compile) -c -O2 -DL_register_frame_info $<
@@ -35,6 +36,9 @@ pthread_mutex_unlock-stub.o: $(srcdir)/config/pa/stublib.c
 pthread_once-stub.o: $(srcdir)/config/pa/stublib.c
 	$(gcc_compile) -c -O2 -DL_pthread_once $<
 
+gnu_lto_v1-stub.o: $(srcdir)/config/pa/stublib.c
+	$(gcc_compile) -c -O2 -DL_gnu_lto_v1 $<
+
 libgcc_stub.a: $(LIBGCCSTUB_OBJS)
 	-rm -rf $@
 	$(AR) rc $@ $(LIBGCCSTUB_OBJS)