--- a/gcc/config/t-darwin	Sun Aug 21 07:07:55 2011 +0900
+++ b/gcc/config/t-darwin	Fri Oct 27 22:46:09 2017 +0900
@@ -1,5 +1,4 @@
-# Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
-# Free Software Foundation, Inc.
+# Copyright (C) 2002-2017 Free Software Foundation, Inc.
 #
 # This file is part of GCC.
 #
@@ -19,45 +18,19 @@
 
 TM_H += $(srcdir)/config/darwin-sections.def
 
-darwin.o: $(srcdir)/config/darwin.c $(CONFIG_H) $(SYSTEM_H) coretypes.h     \
-  $(TM_H) $(RTL_H) $(REGS_H) hard-reg-set.h $(REAL_H) insn-config.h         \
-  conditions.h insn-flags.h output.h insn-attr.h flags.h $(TREE_H) expr.h   \
-  reload.h function.h $(GGC_H) langhooks.h $(TARGET_H) $(TM_P_H) gt-darwin.h \
-  config/darwin-sections.def
-	$(COMPILER) -c $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) \
-		$(srcdir)/config/darwin.c
+darwin.o: $(srcdir)/config/darwin.c config/darwin-sections.def
+	$(COMPILE) $<
+	$(POSTCOMPILE)
 
-darwin-c.o: $(srcdir)/config/darwin-c.c $(CONFIG_H) $(SYSTEM_H) coretypes.h \
-  $(TM_H) $(CPPLIB_H) $(TREE_H) $(C_PRAGMA_H) $(TM_P_H) \
-  incpath.h flags.h $(C_COMMON_H)
-	$(COMPILER) -c $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) \
-		$(srcdir)/config/darwin-c.c $(PREPROCESSOR_DEFINES)
-
-darwin-f.o: $(srcdir)/config/darwin-f.c $(CONFIG_H) $(SYSTEM_H) coretypes.h
-	$(COMPILER) -c $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) \
-	  $(srcdir)/config/darwin-f.c $(PREPROCESSOR_DEFINES)
+darwin-c.o: $(srcdir)/config/darwin-c.c
+	$(COMPILE) $(PREPROCESSOR_DEFINES) $<
+	$(POSTCOMPILE)
 
-darwin-driver.o: $(srcdir)/config/darwin-driver.c \
-  $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(GCC_H) opts.h
-	$(COMPILER) -c $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) \
-	  $(srcdir)/config/darwin-driver.c
 
-# How to build crt3.o
-EXTRA_MULTILIB_PARTS=crt3.o
-# Pass -fno-tree-dominator-opts to work around bug 26840.
-$(T)crt3$(objext): $(srcdir)/config/darwin-crt3.c $(GCC_PASSES) \
-	$(TCONFIG_H) stmp-int-hdrs tsystem.h
-	$(GCC_FOR_TARGET) $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) \
-	  -fno-tree-dominator-opts $(DARWIN_EXTRA_CRT_BUILD_CFLAGS) \
-	  -c $(srcdir)/config/darwin-crt3.c -o $(T)crt3$(objext)
+darwin-f.o: $(srcdir)/config/darwin-f.c
+	$(COMPILE) $<
+	$(POSTCOMPILE)
 
-# Use unwind-dw2-fde-darwin
-LIB2ADDEH = $(srcdir)/unwind-dw2.c $(srcdir)/unwind-dw2-fde-darwin.c \
-  $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c
-LIB2ADDEHDEP = unwind.inc unwind-dw2-fde.h unwind-dw2-fde.c
-
-# -pipe because there's an assembler bug, 4077127, which causes
-# it to not properly process the first # directive, causing temporary
-# file names to appear in stabs, causing the bootstrap to fail.  Using -pipe
-# works around this by not having any temporary file names.
-TARGET_LIBGCC2_CFLAGS = -fPIC -pipe
+darwin-driver.o: $(srcdir)/config/darwin-driver.c
+	$(COMPILE) $<
+	$(POSTCOMPILE)