+ifeq ($(LIBGCC_SYNC),yes)
+libgcc-sync-size-funcs := $(foreach op, add sub or and xor nand, \
+ sync_fetch_and_$(op) \
+ sync_$(op)_and_fetch) \
+ sync_bool_compare_and_swap \
+ sync_val_compare_and_swap \
+ sync_lock_test_and_set
+
+libgcc-sync-size-funcs := $(foreach prefix, $(libgcc-sync-size-funcs), \
+ $(foreach suffix, 1 2 4 8 16, \
+ $(prefix)_$(suffix)))
+
+libgcc-sync-size-funcs-o = $(patsubst %,%$(objext),$(libgcc-sync-size-funcs))
+$(libgcc-sync-size-funcs-o): %$(objext): $(gcc_srcdir)/config/sync.c
+ $(gcc_compile) $(LIBGCC_SYNC_CFLAGS) \
+ -DFN=`echo "$*" | sed 's/_[^_]*$$//'` \
+ -DSIZE=`echo "$*" | sed 's/.*_//'` \
+ -c $(gcc_srcdir)/config/sync.c $(vis_hide)
+libgcc-objects += $(libgcc-sync-size-funcs-o)
+
+libgcc-sync-funcs := sync_synchronize
+
+libgcc-sync-funcs-o = $(patsubst %,%$(objext),$(libgcc-sync-funcs))
+$(libgcc-sync-funcs-o): %$(objext): $(gcc_srcdir)/config/sync.c
+ $(gcc_compile) $(LIBGCC_SYNC_CFLAGS) \
+ -DL$* \
+ -c $(gcc_srcdir)/config/sync.c $(vis_hide)
+libgcc-objects += $(libgcc-sync-funcs-o)
+
+ifeq ($(enable_shared),yes)
+libgcc-sync-size-funcs-s-o = $(patsubst %,%_s$(objext), \
+ $(libgcc-sync-size-funcs))
+$(libgcc-sync-size-funcs-s-o): %_s$(objext): $(gcc_srcdir)/config/sync.c
+ $(gcc_s_compile) $(LIBGCC_SYNC_CFLAGS) \
+ -DFN=`echo "$*" | sed 's/_[^_]*$$//'` \
+ -DSIZE=`echo "$*" | sed 's/.*_//'` \
+ -c $(gcc_srcdir)/config/sync.c
+libgcc-s-objects += $(libgcc-sync-size-funcs-s-o)
+
+libgcc-sync-funcs-s-o = $(patsubst %,%_s$(objext),$(libgcc-sync-funcs))
+$(libgcc-sync-funcs-s-o): %_s$(objext): $(gcc_srcdir)/config/sync.c
+ $(gcc_s_compile) $(LIBGCC_SYNC_CFLAGS) \
+ -DL$* \
+ -c $(gcc_srcdir)/config/sync.c
+libgcc-s-objects += $(libgcc-sync-funcs-s-o)
+endif
+endif
+
+# Build fixed-point support.
+ifeq ($(fixed_point),yes)
+
+# Generate permutations of function name and mode
+fixed-labels := $(shell $(SHELL) $(srcdir)/gen-fixed.sh arith labels)
+fixed-funcs := $(shell $(SHELL) $(srcdir)/gen-fixed.sh arith funcs)
+fixed-modes := $(shell $(SHELL) $(srcdir)/gen-fixed.sh arith modes)
+
+# Generate the rules for each arithmetic function
+iter-items := $(fixed-funcs)
+iter-labels := $(fixed-labels)
+iter-from := $(fixed-modes)
+iter-to := $(fixed-modes)
+include $(srcdir)/empty.mk $(patsubst %,$(srcdir)/fixed-obj.mk,$(iter-items))
+
+# Add arithmetic functions to list of objects to be built
+libgcc-objects += $(patsubst %,%$(objext),$(fixed-funcs))
+ifeq ($(enable_shared),yes)
+libgcc-s-objects += $(patsubst %,%_s$(objext),$(fixed-funcs))
+endif
+
+# Convert from or to fractional
+fixed-conv-funcs := $(shell $(SHELL) $(srcdir)/gen-fixed.sh conv funcs)
+fixed-conv-labels := $(shell $(SHELL) $(srcdir)/gen-fixed.sh conv labels)
+fixed-conv-from := $(shell $(SHELL) $(srcdir)/gen-fixed.sh conv from)
+fixed-conv-to := $(shell $(SHELL) $(srcdir)/gen-fixed.sh conv to)
+
+# Generate the make rules for each conversion function
+iter-items := $(fixed-conv-funcs)
+iter-labels := $(fixed-conv-labels)
+iter-from := $(fixed-conv-from)
+iter-to := $(fixed-conv-to)
+include $(srcdir)/empty.mk $(patsubst %,$(srcdir)/fixed-obj.mk,$(iter-items))
+
+# Add conversion functions to list of objects to be built
+libgcc-objects += $(patsubst %,%$(objext),$(fixed-conv-funcs))
+ifeq ($(enable_shared),yes)
+libgcc-s-objects += $(patsubst %,%_s$(objext),$(fixed-conv-funcs))
+endif
+
+endif
+