--
-- HAMSTER_GCC.LUA              Copyright (c) 2003-05, asko.kauppi@sci.fi
--
-- Compiler adapter for GNU C(++) compiler, version 2.95 or later.
--
-- Usage:
--      Used either directly ('-l hamster_gcc') or via autodetecting
--      '-l hamster' library.
--
-- Author:
--      asko.kauppi@sci.fi
--
-- License:
--      GPL (see 'license.txt')
--
-- To-do:   ...
--

-- Subscript finding (this part should be same in all front-ends)
--
local MY_PATH
for pat in string.gfind( LUA_PATH, "[^;]+" ) do
    local try= string.gsub( pat, "%?%.lua", "" )

    local fh= io.open(try.."hamster.lua","r")
    if fh then fh:close(); MY_PATH=try; break end
end
assert( MY_PATH, "Path to Hamster not found!" )   -- "Tools/Hamster/"

local m= rawget(_G,"arg") and arg[1] or
         assert( dofile( MY_PATH.."hamster_core.lua" ) )    -- passes an error message (if necessary)
assert( m._info )

-----
-- Tell our personality (gcc)
--
function m.CompilerConfig( env )
    --
    local cc= os.getenv("CC") or
              (DARWIN and "cc") or "gcc"
              
    local cxx= os.getenv("CXX") or 
               (DARWIN and "c++") or "g++"
    
    local cfg= {
        program_suffix= WIN32 and ".exe" or nil,
        sharedlib_suffix= (WIN32 and ".dll") or
                          (DARWIN and ".dylib") or
                                      ".so",   -- Linux, BSD, QNX
        staticlib_suffix= ".a",
        staticlib_prefix= "lib",
        staticobj_suffix= ".o",
        sharedobj_suffix= ".os",
        --
        c_cmd=         cc.." $CPPFLAGS $CCFLAGS -c $SOURCE -o $TARGET",
        cpp_cmd=       cxx.." $CPPFLAGS $CXXFLAGS -c $SOURCE -o $TARGET",
        asm_cmd=       nil,    -- NOT IMPLEMENTED YET!
        shared_flag=   (LINUX or DARWIN or BSD or QNX) and "-fPIC" or "",
        --
        staticlib_cmd=  "ar r $TARGET $SOURCE",
        staticlib_cmd2= "ranlib $TARGET",
        --
        sharedlib_cmd=  cxx.." $SHLINKFLAGS -o $TARGET $SOURCE $LIBPATH $LIBS",
        link_cmd=       cxx.." $LINKFLAGS -o $TARGET $SOURCE $LIBPATH $LIBS",
        --
        inc_flag= "-I",
        def_flag= "-D",
        lib_flag= "-l",
        libpath_flag= "-L",
        }
    
    return cfg
end

--
local make= os.getenv("MAKE")

if (not make) and WIN32 then
    if HOST_WIN32_NATIVE then
        make= "mingw32-make"    -- don't use 'make', that'd be confused with "make.cmd"
    elseif HOST_WIN32_MSYS then
        make= "make.exe"    -- MSYS
    else
        --"make"    -- cross compiling (Linux/OS X host)
    end
end
m._make= ASSUME(make or "make")

rawset(_G,"hamster",m)

rawset(_G,"CC","gcc")

return m