-- This file helps GNAT project files to work in a multilib system.
-- Copyright 2009 - 2015 B. Persson, Bjorn@Rombobeorn.se
-- You may do whatever you want with this code as long as you acknowledge the
-- author's copyright.

-- GNAT project files for packaged libraries need to point to architecture-
-- specific files in /usr/lib or /usr/lib64 (or other architecture-specific
-- directories). To work correctly in a multilib system they should import
-- this file and use the variables it defines, for example like this:
--
--    for Library_Dir use Directories.Libdir;
--    for Library_ALI_Dir use Directories.Alidir & "/example_library";
--
-- Information on what the hardware platform is comes from the environment
-- variable HARDWARE_PLATFORM, which is defined in /etc/profile.d/ and can be
-- changed with the command "setarch" or overridden by a command line parameter.
-- It may be undefined in a non-interactive shell, so automated build scripts
-- should probably define it themselves or use the command line parameter. RPM
-- spec files should simply use the macros that are defined in macros.gnat.

abstract project Directories is

   type Platform_Type is ("i386", "x86_64", "ppc", "ppc64", "ppc64le",
                          "s390", "s390x",
                          "sparc", "sparc64", "arm", "armv7l", "aarch64",
                          "alpha", "ia64", "sh");
   Hardware_Platform : Platform_Type := external ("HARDWARE_PLATFORM");

   Lib := "";
   case Hardware_Platform is
      when "i386" | "ppc" | "s390" | "sparc" | "arm" | "armv7l" | "alpha" |
           "ia64" | "sh" =>
         Lib := "lib";
      when "x86_64" | "ppc64" | "ppc64le" | "s390x" | "sparc64" | "aarch64" =>
         Lib := "lib64";
   end case;
   Libdir := "@exec_prefix@/" & Lib;

   Bindir         := "@bindir@";
   Libexecdir     := "@libexecdir@";
   Includedir     := "@includedir@";
   Archincludedir := Libdir;
   Alidir         := Libdir;

end Directories;