abstract project Config is
   for Source_Dirs use ();

   type Yes_No is ("yes", "no");

   type Library_Type_Type is ("relocatable", "static");

   type Mode_Type is ("distrib", "debug", "optimize", "profile");
   Mode : Mode_Type := external ("MODE", "debug");

   Coverage : Yes_No := External ("COVERAGE", "no");
   Processors := External ("PROCESSORS", "1");

   package Builder is
       case Mode is
          when "debug" =>
             for Default_Switches ("Ada") use ("-g", "-j" & Processors);
          when others =>
             for Default_Switches ("Ada") use ("-g", "-O2", "-j" & Processors);
       end case;
   end Builder;

   package compiler is
      warnings := ("-gnatwua");
      defaults := ("-gnat2012");
      case Mode is
         when "distrib" =>
            for Default_Switches ("Ada") use defaults & ("-gnatafno", "-gnatVa", "-gnatwa");

         when "debug" =>
            for Default_Switches ("Ada") use defaults & warnings
               & ("-gnata", "-gnatVaMI", "-gnaty3abcefhiklmnprstxM99");

         when "optimize" =>
            for Default_Switches ("Ada") use defaults & warnings
               & ("-gnatn", "-gnatp", "-fdata-sections", "-ffunction-sections");

         when "profile" =>
            for Default_Switches ("Ada") use defaults & warnings & ("-pg");
      end case;

      case Coverage is
      when "yes" =>
         for Default_Switches ("ada") use Compiler'Default_Switches ("Ada") &
           ("-fprofile-arcs", "-ftest-coverage");
      when others =>
      end case;
   end compiler;

   package binder is
      case Mode is
         when "debug" =>
            for Default_Switches ("Ada") use ("-E");

	 when others =>
            for Default_Switches ("Ada") use ("-E");

      end case;
   end binder;

   package linker is
      case Mode is
         when "profile" =>
            for Default_Switches ("Ada") use ("-pg");

         when "distrib" =>
            for Default_Switches ("Ada") use ("-s");

         when "optimize" =>
            for Default_Switches ("Ada") use ("-Wl,--gc-sections");

	 when others =>
	    null;
      end case;

      case Coverage is
      when "yes" =>
         for Default_Switches ("ada") use Linker'Default_Switches ("ada") &
           ("-fprofile-arcs");
      when others =>
      end case;
   end linker;

   package Ide is
      for VCS_Kind use "git";
   end Ide;

end Config;