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# Copyright (C) 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 libunwind for ELF with the GNU linker.

# Use unwind-dw2-fde-glibc
LIBUNWIND = $(srcdir)/unwind-dw2.c $(srcdir)/unwind-dw2-fde-glibc.c
LIBUNWINDDEP = unwind.inc unwind-dw2-fde.h unwind-dw2-fde.c

SHLIBUNWIND_SOVERSION = 7
SHLIBUNWIND_SONAME = @shlib_base_name@.so.$(SHLIBUNWIND_SOVERSION)

SHLIBUNWIND_LINK = $(GCC_FOR_TARGET) $(LIBGCC2_CFLAGS) -shared \
        -nodefaultlibs -Wl,-h,$(SHLIBUNWIND_SONAME) \
        -Wl,-z,text -Wl,-z,defs -o $(SHLIB_DIR)/$(SHLIBUNWIND_SONAME).tmp \
        @multilib_flags@ $(SHLIB_OBJS) -lc && \
        rm -f $(SHLIB_DIR)/$(SHLIB_SOLINK) && \
        if [ -f $(SHLIB_DIR)/$(SHLIBUNWIND_SONAME) ]; then \
          mv -f $(SHLIB_DIR)/$(SHLIBUNWIND_SONAME) \
                $(SHLIB_DIR)/$(SHLIBUNWIND_SONAME).backup; \
        else true; fi && \
        mv $(SHLIB_DIR)/$(SHLIBUNWIND_SONAME).tmp \
           $(SHLIB_DIR)/$(SHLIBUNWIND_SONAME) && \
        $(LN_S) $(SHLIBUNWIND_SONAME) $(SHLIB_DIR)/$(SHLIB_SOLINK)

# $(slibdir) double quoted to protect it from expansion while building
# libgcc.mk.  We want this delayed until actual install time.
SHLIBUNWIND_INSTALL = \
        $$(SHELL) $$(srcdir)/mkinstalldirs $$(DESTDIR)$$(slibdir)$(SHLIB_SLIBDIR_QUAL); \
        $(INSTALL_DATA) $(SHLIB_DIR)/$(SHLIBUNWIND_SONAME) \
          $$(DESTDIR)$$(slibdir)$(SHLIB_SLIBDIR_QUAL)/$(SHLIBUNWIND_SONAME); \
        rm -f $$(DESTDIR)$$(slibdir)$(SHLIB_SLIBDIR_QUAL)/$(SHLIB_SOLINK); \
        $(LN_S) $(SHLIBUNWIND_SONAME) \
          $$(DESTDIR)$$(slibdir)$(SHLIB_SLIBDIR_QUAL)/$(SHLIB_SOLINK)