dnl AG_GST_PLATFORM

dnl Check for platform specific features and define some variables

dnl

dnl GST_EXTRA_MODULE_SUFFIX: contains a platform specific

dnl   extra module suffix additional to G_MODULE_SUFFIX

dnl

dnl HAVE_OSX: Defined if compiling for OS X

dnl

dnl GST_HAVE_UNSAFE_FORK: Defined if fork is unsafe (Windows)

dnl

dnl HAVE_WIN32: Defined if compiling on Win32

dnl

AC_DEFUN([AG_GST_PLATFORM],

[

  AC_REQUIRE([AC_CANONICAL_HOST])

  case $host_os in

    rhapsody*)

      AC_DEFINE_UNQUOTED(GST_EXTRA_MODULE_SUFFIX, [".dylib"], [Extra platform specific plugin suffix])

      ;;

    darwin*)

      AC_DEFINE_UNQUOTED(GST_EXTRA_MODULE_SUFFIX, [".dylib"], [Extra platform specific plugin suffix])

      AC_DEFINE_UNQUOTED(HAVE_OSX, 1, [Defined if compiling for OSX])

      ;;

    cygwin*)

      AC_DEFINE_UNQUOTED(GST_HAVE_UNSAFE_FORK, 1, [Defined when registry scanning through fork is unsafe])

      ;;

    mingw* | msvc* | mks*)

      dnl HAVE_WIN32 currently means "disable POSIXisms".

      AC_DEFINE_UNQUOTED(HAVE_WIN32, 1, [Defined if compiling for Windows])

      dnl define __MSVCRT_VERSION__ version if not set already by the

      dnl compiler (ie. mostly for mingw). This is needed for things like

      dnl __stat64 to be available. If set by the compiler, ensure it's

      dnl new enough - we need at least WinXP SP2.

      AC_TRY_COMPILE([ ], [ return __MSVCRT_VERSION__; ], [

          AC_TRY_COMPILE([ ], [

            #if __MSVCRT_VERSION__ < 0x0601

            #error "MSVCRT too old"

            #endif

          ], [

            AC_MSG_NOTICE([MSVCRT version looks ok])

          ], [

            AC_MSG_ERROR([MSVCRT version too old, need at least WinXP SP2])

          ])

      ], [

        AC_MSG_NOTICE([Setting MSVCRT version to 0x0601])

        AC_DEFINE_UNQUOTED(__MSVCRT_VERSION__, 0x0601, [We need at least WinXP SP2 for __stat64])

      ])

      ;;

     *)

      ;;

  esac

])

AC_DEFUN([AG_GST_LIBTOOL_PREPARE],

[

  dnl Persuade libtool to also link (-l) a 'pure' (DirectX) static lib,

  dnl i.e. as opposed to only import lib with dll counterpart.

  dnl Needs to be tweaked before libtool's checks.

  case $host_os in

  cygwin* | mingw*)

    lt_cv_deplibs_check_method=pass_all

    ;;

  esac

])