acinclude.m4

linux下实现视频播放的播放器

dnl AM_PATH_SDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS
dnl
AC_DEFUN([AM_PATH_SDL],
[dnl
dnl Get the cflags and libraries from the sdl-config script
dnl
AC_ARG_WITH(sdl-prefix,[  --with-sdl-prefix=PFX   Prefix where SDL is installed (optional)],
            sdl_prefix="$withval", sdl_prefix="")
AC_ARG_WITH(sdl-exec-prefix,[  --with-sdl-exec-prefix=PFX Exec prefix where SDL is installed (optional)],
            sdl_exec_prefix="$withval", sdl_exec_prefix="")
AC_ARG_ENABLE(sdltest, [  --disable-sdltest       Do not try to compile and run a test SDL program],
		    , enable_sdltest=yes)

  if test x$sdl_exec_prefix != x ; then
     sdl_args="$sdl_args --exec-prefix=$sdl_exec_prefix"
     if test x${SDL_CONFIG+set} != xset ; then
        SDL_CONFIG=$sdl_exec_prefix/bin/sdl-config
     fi
  fi
  if test x$sdl_prefix != x ; then
     sdl_args="$sdl_args --prefix=$sdl_prefix"
     if test x${SDL_CONFIG+set} != xset ; then
        SDL_CONFIG=$sdl_prefix/bin/sdl-config
     fi
  fi

  AC_PATH_PROG(SDL_CONFIG, sdl-config, no)
  min_sdl_version=ifelse([$1], ,0.11.0,$1)
  AC_MSG_CHECKING(for SDL - version >= $min_sdl_version)
  no_sdl=""
  if test "$SDL_CONFIG" = "no" ; then
    no_sdl=yes
  else
    SDL_CFLAGS=`$SDL_CONFIG $sdlconf_args --cflags`
    SDL_LIBS=`$SDL_CONFIG $sdlconf_args --libs`

    sdl_major_version=`$SDL_CONFIG $sdl_args --version | \
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
    sdl_minor_version=`$SDL_CONFIG $sdl_args --version | \
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
    sdl_micro_version=`$SDL_CONFIG $sdl_config_args --version | \
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
    if test "x$enable_sdltest" = "xyes" ; then
      ac_save_CFLAGS="$CFLAGS"
      ac_save_LIBS="$LIBS"
      CFLAGS="$CFLAGS $SDL_CFLAGS"
      LIBS="$LIBS $SDL_LIBS"
dnl
dnl Now check if the installed SDL is sufficiently new. (Also sanity
dnl checks the results of sdl-config to some extent
dnl
      rm -f conf.sdltest
      AC_TRY_RUN([
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "SDL.h"

char*
my_strdup (char *str)
{
  char *new_str;

  if (str)
    {
      new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char));
      strcpy (new_str, str);
    }
  else
    new_str = NULL;

  return new_str;
}

int main (int argc, char *argv[])
{
  int major, minor, micro;
  char *tmp_version;

  /* This hangs on some systems (?)
  system ("touch conf.sdltest");
  */
  { FILE *fp = fopen("conf.sdltest", "a"); if ( fp ) fclose(fp); }

  /* HP/UX 9 (%@#!) writes to sscanf strings */
  tmp_version = my_strdup("$min_sdl_version");
  if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
     printf("%s, bad version string\n", "$min_sdl_version");
     exit(1);
   }

   if (($sdl_major_version > major) ||
      (($sdl_major_version == major) && ($sdl_minor_version > minor)) ||
      (($sdl_major_version == major) && ($sdl_minor_version == minor) && ($sdl_micro_version >= micro)))
    {
      return 0;
    }
  else
    {
      printf("\n*** 'sdl-config --version' returned %d.%d.%d, but the minimum version\n", $sdl_major_version, $sdl_minor_version, $sdl_micro_version);
      printf("*** of SDL required is %d.%d.%d. If sdl-config is correct, then it is\n", major, minor, micro);
      printf("*** best to upgrade to the required version.\n");
      printf("*** If sdl-config was wrong, set the environment variable SDL_CONFIG\n");
      printf("*** to point to the correct copy of sdl-config, and remove the file\n");
      printf("*** config.cache before re-running configure\n");
      return 1;
    }
}

],, no_sdl=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
       CFLAGS="$ac_save_CFLAGS"
       LIBS="$ac_save_LIBS"
     fi
  fi
  if test "x$no_sdl" = x ; then
     AC_MSG_RESULT(yes)
     ifelse([$2], , :, [$2])
  else
     AC_MSG_RESULT(no)
     if test "$SDL_CONFIG" = "no" ; then
       echo "*** The sdl-config script installed by SDL could not be found"
       echo "*** If SDL was installed in PREFIX, make sure PREFIX/bin is in"
       echo "*** your path, or set the SDL_CONFIG environment variable to the"
       echo "*** full path to sdl-config."
     else
       if test -f conf.sdltest ; then
        :
       else
          echo "*** Could not run SDL test program, checking why..."
          CFLAGS="$CFLAGS $SDL_CFLAGS"
          LIBS="$LIBS $SDL_LIBS"
          AC_TRY_LINK([
#include <stdio.h>
#include "SDL.h"
],      [ return 0; ],
        [ echo "*** The test program compiled, but did not run. This usually means"
          echo "*** that the run-time linker is not finding SDL or finding the wrong"
          echo "*** version of SDL. If it is not finding SDL, you'll need to set your"
          echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
          echo "*** to the installed location  Also, make sure you have run ldconfig if that"
          echo "*** is required on your system"
	  echo "***"
          echo "*** If you have an old version installed, it is best to remove it, although"
          echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
        [ echo "*** The test program failed to compile or link. See the file config.log for the"
          echo "*** exact error that occured. This usually means SDL was incorrectly installed"
          echo "*** or that you have moved SDL since it was installed. In the latter case, you"
          echo "*** may want to edit the sdl-config script: $SDL_CONFIG" ])
          CFLAGS="$ac_save_CFLAGS"
          LIBS="$ac_save_LIBS"
       fi
     fi
     SDL_CFLAGS=""
     SDL_LIBS=""
     ifelse([$3], , :, [$3])
  fi
  AC_SUBST(SDL_CFLAGS)
  AC_SUBST(SDL_LIBS)
  rm -f conf.sdltest
])

AH_TOP([
/*
 *  Copyright (C) 2007  gulikoza
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Library General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */
])

AH_BOTTOM([#if C_HAS_BUILTIN_EXPECT
#define GCC_UNLIKELY(x) __builtin_expect((x),0)
#else
#define GCC_UNLIKELY(x) (x)
#endif])

dnl @synopsis AC_C99_FUNC_LRINT
dnl
dnl Check whether C99's lrint function is available.
dnl @version 1.1
dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
dnl
dnl Permission to use, copy, modify, distribute, and sell this file for any
dnl purpose is hereby granted without fee, provided that the above copyright
dnl and this permission notice appear in all copies.  No representations are
dnl made about the suitability of this software for any purpose.  It is
dnl provided "as is" without express or implied warranty.
dnl
AC_DEFUN([AC_C99_FUNC_LRINT],
[AC_CACHE_CHECK(for lrint,
  ac_cv_c99_lrint,
[AC_TRY_COMPILE([
#define		_ISOC9X_SOURCE	1
#define 	_ISOC99_SOURCE	1
#define		__USE_ISOC99	1
#define 	__USE_ISOC9X	1
#include	<math.h>],
[	int value = lrint (0.432) ; ], ac_cv_c99_lrint=yes, ac_cv_c99_lrint=no)])
if test $ac_cv_c99_lrint = yes; then
  AC_DEFINE(HAVE_LRINT, 1,
	[Define if you have C99's lrint function.])
fi
])# AC_C99_LRINT

dnl @synopsis AC_C99_FUNC_LRINTF
dnl
dnl Check whether C99's lrintf function is available.
dnl @version 1.1
dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
dnl
dnl Permission to use, copy, modify, distribute, and sell this file for any
dnl purpose is hereby granted without fee, provided that the above copyright
dnl and this permission notice appear in all copies.  No representations are
dnl made about the suitability of this software for any purpose.  It is
dnl provided "as is" without express or implied warranty.
dnl
AC_DEFUN([AC_C99_FUNC_LRINTF],
[AC_CACHE_CHECK(for lrintf,
  ac_cv_c99_lrintf,
[AC_TRY_COMPILE([
#define		_ISOC9X_SOURCE	1
#define 	_ISOC99_SOURCE	1
#define		__USE_ISOC99	1
#define 	__USE_ISOC9X	1
#include	<math.h>],
[	int value = lrintf (0.432) ; ], ac_cv_c99_lrintf=yes, ac_cv_c99_lrintf=no)])
if test $ac_cv_c99_lrintf = yes; then
  AC_DEFINE(HAVE_LRINTF, 1,
	[Define if you have C99's lrintf function.])
fi
])# AC_C99_LRINTF

dnl ---------------------------------------------------------------------------
dnl Macros for wxWidgets detection. Typically used in configure.in as:
dnl
dnl     AC_ARG_ENABLE(...)
dnl     AC_ARG_WITH(...)
dnl        ...
dnl     AM_OPTIONS_WXCONFIG
dnl        ...
dnl        ...
dnl     AM_PATH_WXCONFIG(2.6.0, wxWin=1)
dnl     if test "$wxWin" != 1; then
dnl        AC_MSG_ERROR([
dnl                wxWidgets must be installed on your system
dnl                but wx-config script couldn't be found.
dnl
dnl                Please check that wx-config is in path, the directory
dnl                where wxWidgets libraries are installed (returned by
dnl                'wx-config --libs' command) is in LD_LIBRARY_PATH or
dnl                equivalent variable and wxWidgets version is 2.3.4 or above.
dnl        ])
dnl     fi
dnl     CPPFLAGS="$CPPFLAGS $WX_CPPFLAGS"
dnl     CXXFLAGS="$CXXFLAGS $WX_CXXFLAGS_ONLY"
dnl     CFLAGS="$CFLAGS $WX_CFLAGS_ONLY"
dnl
dnl     LIBS="$LIBS $WX_LIBS"
dnl ---------------------------------------------------------------------------

dnl ---------------------------------------------------------------------------
dnl AM_OPTIONS_WXCONFIG
dnl
dnl adds support for --wx-prefix, --wx-exec-prefix, --with-wxdir and
dnl --wx-config command line options
dnl ---------------------------------------------------------------------------

AC_DEFUN([AM_OPTIONS_WXCONFIG],
[
    AC_ARG_WITH(wxdir,
                [  --with-wxdir=PATH       Use uninstalled version of wxWidgets in PATH],
                [ wx_config_name="$withval/wx-config"
                  wx_config_args="--inplace"])
    AC_ARG_WITH(wx-config,
                [  --with-wx-config=CONFIG wx-config script to use (optional)],
                wx_config_name="$withval" )
    AC_ARG_WITH(wx-prefix,
                [  --with-wx-prefix=PREFIX Prefix where wxWidgets is installed (optional)],
                wx_config_prefix="$withval", wx_config_prefix="")
    AC_ARG_WITH(wx-exec-prefix,
                [  --with-wx-exec-prefix=PREFIX
                          Exec prefix where wxWidgets is installed (optional)],
                wx_config_exec_prefix="$withval", wx_config_exec_prefix="")
])

dnl Helper macro for checking if wx version is at least $1.$2.$3, set's
dnl wx_ver_ok=yes if it is:
AC_DEFUN([_WX_PRIVATE_CHECK_VERSION],
[
    wx_ver_ok=""
    if test "x$WX_VERSION" != x ; then
      if test $wx_config_major_version -gt $1; then
        wx_ver_ok=yes