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t-linux64 revision 1.3 
      1  1.3  mrg # Copyright (C) 2002-2013 Free Software Foundation, Inc.
      2  1.1  mrg #
      3  1.1  mrg # This file is part of GCC.
      4  1.1  mrg #
      5  1.1  mrg # GCC is free software; you can redistribute it and/or modify
      6  1.1  mrg # it under the terms of the GNU General Public License as published by
      7  1.1  mrg # the Free Software Foundation; either version 3, or (at your option)
      8  1.1  mrg # any later version.
      9  1.1  mrg #
     10  1.1  mrg # GCC is distributed in the hope that it will be useful,
     11  1.1  mrg # but WITHOUT ANY WARRANTY; without even the implied warranty of
     12  1.1  mrg # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     13  1.1  mrg # GNU General Public License for more details.
     14  1.1  mrg #
     15  1.1  mrg # You should have received a copy of the GNU General Public License
     16  1.1  mrg # along with GCC; see the file COPYING3.  If not see
     17  1.1  mrg # <http://www.gnu.org/licenses/>.
     18  1.1  mrg 
     19  1.1  mrg # On Debian, Ubuntu and other derivative distributions, the 32bit libraries
     20  1.1  mrg # are found in /lib32 and /usr/lib32, /lib64 and /usr/lib64 are symlinks to
     21  1.1  mrg # /lib and /usr/lib, while other distributions install libraries into /lib64
     22  1.1  mrg # and /usr/lib64.  The LSB does not enforce the use of /lib64 and /usr/lib64,
     23  1.1  mrg # it doesn't tell anything about the 32bit libraries on those systems.  Set
     24  1.1  mrg # MULTILIB_OSDIRNAMES according to what is found on the target.
     25  1.1  mrg 
     26  1.3  mrg # To support i386, x86-64 and x32 libraries, the directory structrue
     27  1.3  mrg # should be:
     28  1.3  mrg #
     29  1.3  mrg # 	/lib has i386 libraries.
     30  1.3  mrg # 	/lib64 has x86-64 libraries.
     31  1.3  mrg # 	/libx32 has x32 libraries.
     32  1.3  mrg #
     33  1.3  mrg comma=,
     34  1.3  mrg MULTILIB_OPTIONS    = $(subst $(comma),/,$(TM_MULTILIB_CONFIG))
     35  1.3  mrg MULTILIB_DIRNAMES   = $(patsubst m%, %, $(subst /, ,$(MULTILIB_OPTIONS)))
     36  1.3  mrg MULTILIB_OSDIRNAMES = m64=../lib64$(call if_multiarch,:x86_64-linux-gnu)
     37  1.3  mrg MULTILIB_OSDIRNAMES+= m32=$(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:i386-linux-gnu)
     38  1.3  mrg MULTILIB_OSDIRNAMES+= mx32=../libx32$(call if_multiarch,:x86_64-linux-gnux32)
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