# Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
#
# This file is part of GCC.
#
# GCC is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# GCC is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GCC; see the file COPYING3.  If not see
# <http://www.gnu.org/licenses/>.

# Build a shared libgcc library for ELF with symbol versioning
# with the GNU linker.

SHLIB_EXT = .so
SHLIB_SOLINK = @shlib_base_name@.so
SHLIB_SOVERSION = 1
SHLIB_SONAME = @shlib_base_name@.so.$(SHLIB_SOVERSION)
SHLIB_MAP = @shlib_map_file@
SHLIB_OBJS = @shlib_objs@
SHLIB_DIR = @multilib_dir@
SHLIB_SLIBDIR_QUAL = @shlib_slibdir_qual@
SHLIB_LC = -lc
SHLIB_MAKE_SOLINK = $(LN_S) $(SHLIB_SONAME) $(SHLIB_DIR)/$(SHLIB_SOLINK)
SHLIB_INSTALL_SOLINK = $(LN_S) $(SHLIB_SONAME) \
	$$(DESTDIR)$$(slibdir)$(SHLIB_SLIBDIR_QUAL)/$(SHLIB_SOLINK)

SHLIB_LINK = $(GCC_FOR_TARGET) $(LIBGCC2_CFLAGS) -shared -nodefaultlibs \
	-Wl,--soname=$(SHLIB_SONAME) \
	-Wl,--version-script=$(SHLIB_MAP) \
	-o $(SHLIB_DIR)/$(SHLIB_SONAME).tmp @multilib_flags@ \
	$(SHLIB_OBJS) $(SHLIB_LC) && \
	rm -f $(SHLIB_DIR)/$(SHLIB_SOLINK) && \
	if [ -f $(SHLIB_DIR)/$(SHLIB_SONAME) ]; then \
	  mv -f $(SHLIB_DIR)/$(SHLIB_SONAME) \
		$(SHLIB_DIR)/$(SHLIB_SONAME).backup; \
	else true; fi && \
	mv $(SHLIB_DIR)/$(SHLIB_SONAME).tmp $(SHLIB_DIR)/$(SHLIB_SONAME) && \
	$(SHLIB_MAKE_SOLINK)
# $(slibdir) double quoted to protect it from expansion while building
# libgcc.mk.  We want this delayed until actual install time.
SHLIB_INSTALL = \
	$$(mkinstalldirs) $$(DESTDIR)$$(slibdir)$(SHLIB_SLIBDIR_QUAL); \
	$(INSTALL_DATA) $(SHLIB_DIR)/$(SHLIB_SONAME) \
	  $$(DESTDIR)$$(slibdir)$(SHLIB_SLIBDIR_QUAL)/$(SHLIB_SONAME); \
	rm -f $$(DESTDIR)$$(slibdir)$(SHLIB_SLIBDIR_QUAL)/$(SHLIB_SOLINK); \
	$(SHLIB_INSTALL_SOLINK)
SHLIB_MKMAP = $(srcdir)/mkmap-symver.awk
SHLIB_MAPFILES = $(srcdir)/libgcc-std.ver