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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)