# Build a shared libgcc library with the darwin linker.
SHLIB_SOVERSION = 1
SHLIB_VERSTRING = -compatibility_version $(SHLIB_SOVERSION) -current_version $(SHLIB_SOVERSION).0
SHLIB_EXT = .dylib
SHLIB_SUFFIX = `if test @multilib_dir@ != . ; then echo _@multilib_dir@ ; fi`
SHLIB_SOLINK = @shlib_base_name@$(SHLIB_SUFFIX)$(SHLIB_EXT)
SHLIB_SONAME = @shlib_base_name@$(SHLIB_SUFFIX).$(SHLIB_SOVERSION)$(SHLIB_EXT)
SHLIB_MAP = @shlib_map_file@
SHLIB_OBJS = @shlib_objs@
SHLIB_DIR = @multilib_dir@

# Darwin only searches in /usr/lib for shared libraries, not in subdirectories,
# so the libgcc variants have different names not different locations.

SHLIB_LINK = $(GCC_FOR_TARGET) $(LIBGCC2_CFLAGS) -dynamiclib -nodefaultlibs \
	-Wl,-install_name,$(slibdir)/$(SHLIB_SONAME) \
	-Wl,-flat_namespace -o $(SHLIB_SONAME).tmp \
	-Wl,-exported_symbols_list,$(SHLIB_MAP) \
	$(SHLIB_VERSTRING) \
	@multilib_flags@ $(SHLIB_OBJS) -lc && \
	rm -f $(SHLIB_SOLINK) $(SHLIB_DIR)/$(SHLIB_SOLINK) && \
	if [ -f $(SHLIB_SONAME) ]; then \
	  mv -f $(SHLIB_SONAME) $(SHLIB_SONAME).backup; \
	else true; fi && \
	mv $(SHLIB_SONAME).tmp $(SHLIB_SONAME) && \
	$(LN_S) $(SHLIB_SONAME) $(SHLIB_SOLINK) && \
	if [ $(SHLIB_DIR) != . ] ; then \
	  $(LN_S) `pwd`/$(SHLIB_SONAME) $(SHLIB_DIR)/$(SHLIB_SOLINK) ; \
	else true; fi
# $(slibdir) double quoted to protect it from expansion while building
# libgcc.mk.  We want this delayed until actual install time.
SHLIB_INSTALL = \
	$$(mkinstalldirs) $$(DESTDIR)$$(slibdir); \
	$(INSTALL_DATA) $(SHLIB_SONAME) \
	  $$(DESTDIR)$$(slibdir)/$(SHLIB_SONAME); \
	rm -f $$(DESTDIR)$$(slibdir)/$(SHLIB_SOLINK); \
	$(LN_S) $(SHLIB_SONAME) \
	  $$(DESTDIR)$$(slibdir)/$(SHLIB_SOLINK)
SHLIB_MKMAP = $(srcdir)/mkmap-flat.awk
SHLIB_MKMAP_OPTS = -v leading_underscore=1
SHLIB_MAPFILES = $(srcdir)/libgcc-std.ver

# Must use a different directive for hidden visibility in assembly sources.
ASM_HIDDEN_OP = .private_extern