--- a/gcc/config/ia64/t-hpux	Sun Aug 21 07:07:55 2011 +0900
+++ b/gcc/config/ia64/t-hpux	Fri Oct 27 22:46:09 2017 +0900
@@ -1,5 +1,4 @@
-# Copyright (C) 2001, 2002, 2003, 2004, 2005,
-# 2006 Free Software Foundation, Inc.
+# Copyright (C) 2001-2017 Free Software Foundation, Inc.
 #
 # This file is part of GCC.
 #
@@ -19,57 +18,11 @@
 
 # We need multilib support for HPUX's ILP32 & LP64 modes.
 
-LIBGCC = stmp-multilib
-INSTALL_LIBGCC = install-multilib
-
 MULTILIB_OPTIONS = milp32/mlp64
 MULTILIB_DIRNAMES = hpux32 hpux64
 MULTILIB_MATCHES =
 
-# On HP-UX we do not want _fixtfdi, _fixunstfdi, or _floatditf from
-# LIB1ASMSRC.  These functions map the 128 bit conversion function names
-# to 80 bit conversions and were done for Linux backwards compatibility.
-
-LIB1ASMFUNCS := $(filter-out _fixtfdi _fixunstfdi _floatditf,$(LIB1ASMFUNCS))
-
-# Support routines for HP-UX 128 bit floats.
-
-LIB2FUNCS_EXTRA=quadlib.c $(srcdir)/config/floatunsitf.c
-
-quadlib.c: $(srcdir)/config/ia64/quadlib.c
-	cat $(srcdir)/config/ia64/quadlib.c > quadlib.c
-
-# We get an undefined main when building a cross compiler because our
-# linkspec has "-u main" and we want that for linking but it makes
-# LIBGCC1_TEST fail because it uses -nostdlib -nostartup.
-
-LIBGCC1_TEST =
-
 # We do not want to include the EH stuff that linux uses, we want to use
 # the HP-UX libunwind library.
 
 T_CFLAGS += -DUSE_LIBUNWIND_EXCEPTIONS
-
-LIB2ADDEH = $(srcdir)/unwind-c.c
-
-SHLIB_EXT = .so
-# Must include -lunwind in the link, so that libgcc_s.so has the necessary
-# DT_NEEDED entry for libunwind.
-SHLIB_LINK = $(GCC_FOR_TARGET) $(LIBGCC2_CFLAGS) -shared -nodefaultlibs \
-	-Wl,+h,@shlib_base_name@.so.0 \
-	-o @multilib_dir@/@shlib_base_name@.so @multilib_flags@ \
-	@shlib_objs@ -lunwind -lc && \
-	rm -f @multilib_dir@/@shlib_base_name@.so.0 && \
-	$(LN_S) @shlib_base_name@.so @multilib_dir@/@shlib_base_name@.so.0
-# $(slibdir) double quoted to protect it from expansion while building
-# libgcc.mk.  We want this delayed until actual install time.
-SHLIB_INSTALL = \
-        $$(mkinstalldirs) $$(DESTDIR)$$(slibdir)@shlib_slibdir_qual@; \
-	$(INSTALL_DATA) @multilib_dir@/@shlib_base_name@.so \
-	$$(DESTDIR)$$(slibdir)@shlib_slibdir_qual@/@shlib_base_name@.so.0; \
-	rm -f $$(DESTDIR)$$(slibdir)@shlib_slibdir_qual@/@shlib_base_name@.so; \
-	$(LN_S) @shlib_base_name@.so.0 \
-	$$(DESTDIR)$$(slibdir)@shlib_slibdir_qual@/@shlib_base_name@.so; \
-	chmod +x $$(DESTDIR)$$(slibdir)@shlib_slibdir_qual@/@shlib_base_name@.so
-
-SHLIB_MKMAP = $(srcdir)/mkmap-flat.awk