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# Copyright (C) 2002, 2005, 2007, 2008, 2011

# 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

# .

# On Debian, Ubuntu and other derivative distributions, the 32bit libraries

# are found in /lib32 and /usr/lib32, /lib64 and /usr/lib64 are symlinks to

# /lib and /usr/lib, while other distributions install libraries into /lib64

# and /usr/lib64.  The LSB does not enforce the use of /lib64 and /usr/lib64,

# it doesn't tell anything about the 32bit libraries on those systems.  Set

# MULTILIB_OSDIRNAMES according to what is found on the target.

# To support i386, x86-64 and x32 libraries, the directory structrue

# should be:

#

#       /lib has i386 libraries.

#       /lib64 has x86-64 libraries.

#       /libx32 has x32 libraries.

#

comma=,

MULTILIB_OPTIONS    = $(subst $(comma),/,$(TM_MULTILIB_CONFIG))

MULTILIB_DIRNAMES   = $(patsubst m%, %, $(subst /, ,$(MULTILIB_OPTIONS)))

MULTILIB_OSDIRNAMES = m64=../lib64

MULTILIB_OSDIRNAMES+= m32=$(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)

MULTILIB_OSDIRNAMES+= mx32=../libx32