configure.ac

    ])
    AS_IF([test "${ac_cv_c_o3}" = "no"], [VLC_RESTORE_FLAGS])
  ])

  dnl Check for -ffast-math
  VLC_SAVE_FLAGS
  CFLAGS="${CFLAGS} -ffast-math"
  CXXFLAGS="${CXXFLAGS} -ffast-math"
  OBJCFLAGS="${OBJCFLAGS} -ffast-math"
  AC_CACHE_CHECK([if $CC accepts -ffast-math], [ac_cv_c_fast_math], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
      ac_cv_c_fast_math=yes
    ], [
      ac_cv_c_fast_math=no
    ])
  ])
  AS_IF([test "${ac_cv_c_fast_math}" = "no"], [VLC_RESTORE_FLAGS])
  AH_BOTTOM([
#ifndef __FAST_MATH__
# ifndef _MSC_VER
#  pragma STDC FENV_ACCESS OFF
#  pragma STDC FP_CONTRACT ON
# else
#  pragma fenv_access(off)
#  pragma fp_contract(on)
# endif
#endif
])

  dnl Check for -funroll-loops
  VLC_SAVE_FLAGS
  CFLAGS="${CFLAGS} -funroll-loops"
  CXXFLAGS="${CXXFLAGS} -funroll-loops"
  OBJCFLAGS="${OBJCFLAGS} -funroll-loops"
  AC_CACHE_CHECK([if $CC accepts -funroll-loops], [ac_cv_c_unroll_loops], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
      ac_cv_c_unroll_loops=yes
    ], [
      ac_cv_c_unroll_loops=no
    ])
  ])
  AS_IF([test "${ac_cv_c_unroll_loops}" = "no"], [VLC_RESTORE_FLAGS])

  AS_IF([test "$enable_debug" = "no"], [
    dnl Check for -fomit-frame-pointer
    VLC_SAVE_FLAGS
    CFLAGS="${CFLAGS} -fomit-frame-pointer"
    CXXFLAGS="${CXXFLAGS} -fomit-frame-pointer"
    OBJCFLAGS="${OBJCFLAGS} -fomit-frame-pointer"
    AC_CACHE_CHECK([if $CC accepts -fomit-frame-pointer],
      [ac_cv_c_omit_frame_pointer], [
      AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
        ac_cv_c_omit_frame_pointer=yes
      ], [
        ac_cv_c_omit_frame_pointer=no
      ])
    ])
    AS_IF([test "${ac_cv_c_omit_frame_pointer}" = "no"], [VLC_RESTORE_FLAGS])
  ])
])

VLC_SAVE_FLAGS
LDFLAGS="${LDFLAGS} -Wl,-Bsymbolic"
AC_CACHE_CHECK([if linker supports -Bsymbolic], [ac_cv_ld_bsymbolic], [
  AC_TRY_LINK([],, [
    ac_cv_ld_bsymbolic="-Wl,-Bsymbolic"
  ], [
    ac_cv_ld_bsymbolic=""
  ])
])
VLC_RESTORE_FLAGS
SYMBOLIC_LDFLAGS="${ac_cv_ld_bsymbolic}"
AC_SUBST(SYMBOLIC_LDFLAGS)

dnl Checks for __attribute__(aligned()) directive
VLC_SAVE_FLAGS
CFLAGS="${CFLAGS} -Werror"
AC_CACHE_CHECK([__attribute__ ((aligned ())) support],
    [ac_cv_c_attribute_aligned],
    [ac_cv_c_attribute_aligned=0
    for ac_cv_c_attr_align_try in 2 4 8 16 32 64; do
        AC_TRY_COMPILE([],
        [static char c __attribute__ ((aligned(${ac_cv_c_attr_align_try}))) = 0; return c;],
        [ac_cv_c_attribute_aligned="${ac_cv_c_attr_align_try}"])
    done])
VLC_RESTORE_FLAGS
if test "${ac_cv_c_attribute_aligned}" != "0"; then
    AC_DEFINE_UNQUOTED([ATTRIBUTE_ALIGNED_MAX],
        [${ac_cv_c_attribute_aligned}],[Maximum supported data alignment])
fi

dnl Check for __attribute__((packed))
AC_CACHE_CHECK([for __attribute__((packed))],
  [ac_cv_c_attribute_packed],
  [ac_cv_c_attribute_packed=no
   AC_TRY_COMPILE(, [struct __attribute__((__packed__)) foo { int a; } b; (void)b;],
                    [ac_cv_c_attribute_packed=yes])])
if test "${ac_cv_c_attribute_packed}" != "no"; then
  AC_DEFINE(HAVE_ATTRIBUTE_PACKED, 1, Support for __attribute__((packed)) for structs)
fi

dnl
dnl  Check the CPU
dnl
case "${host_cpu}" in
  "")
    ARCH=unknown
    ;;
  *)
    ARCH="${host_cpu}"
    ;;
esac

dnl Check for backtrace() support
AC_CHECK_HEADERS(execinfo.h)
AC_CHECK_FUNCS(backtrace)

dnl
dnl  default modules
dnl
ALIASES="${ALIASES} cvlc rvlc"

dnl
dnl  Accelerated modules
dnl

dnl  Check for fully working MMX intrinsics
dnl  We need support for -mmmx, we need <mmintrin.h>, and we also need a
dnl  working compiler (http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23963)
AC_ARG_ENABLE(mmx,
  [AS_HELP_STRING([--disable-mmx],
    [disable MMX optimizations (default auto)])],,[
  case "${host_cpu}" in
    i?86|x86_64)
      enable_mmx="yes"
      ;;
    *)
      enable_mmx="no"
      ;;
  esac
])
have_mmx="no"
have_mmxext="no"
AS_IF([test "${enable_mmx}" != "no"], [
  ARCH="${ARCH} mmx"
  VLC_SAVE_FLAGS
  CFLAGS="${CFLAGS} -mmmx"
  AC_CACHE_CHECK([if $CC groks MMX intrinsics], [ac_cv_c_mmx_intrinsics], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
[#include <mmintrin.h>
#include <stdint.h>
uint64_t frobzor;]], [
[__m64 a, b, c;
a = b = c = (__m64)frobzor;
a = _mm_slli_pi16(a, 3);
a = _mm_adds_pi16(a, b);
c = _mm_srli_pi16(c, 8);
c = _mm_slli_pi16(c, 3);
b = _mm_adds_pi16(b, c);
a = _mm_unpacklo_pi8(a, b);
frobzor = (uint64_t)a;]])], [
      ac_cv_c_mmx_intrinsics=yes
    ], [
      ac_cv_c_mmx_intrinsics=no
    ])
  ])
  VLC_RESTORE_FLAGS
  AS_IF([test "${ac_cv_c_mmx_intrinsics}" != "no"], [
    AC_DEFINE(HAVE_MMX_INTRINSICS, 1, [Define to 1 if MMX intrinsics are available.])
  ])

  VLC_SAVE_FLAGS
  CFLAGS="${CFLAGS} -mmmx"
  AC_CACHE_CHECK([if $CC groks MMX inline assembly], [ac_cv_mmx_inline], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[[
void *p;
asm volatile("packuswb %%mm1,%%mm2"::"r"(p):"mm1", "mm2");
]])
    ], [
      ac_cv_mmx_inline=yes
    ], [
      ac_cv_mmx_inline=no
    ])
  ])
  AS_IF([test "${ac_cv_mmx_inline}" != "no"], [
    AC_DEFINE(CAN_COMPILE_MMX, 1, [Define to 1 inline MMX assembly is available.])
    have_mmx="yes"
  ])

  AC_CACHE_CHECK([if $CC groks MMX EXT inline assembly],
                 [ac_cv_mmxext_inline], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[[
void *p;
asm volatile("maskmovq %%mm1,%%mm2"::"r"(p):"mm1", "mm2");
]])
    ], [
      ac_cv_mmxext_inline=yes
    ], [
      ac_cv_mmxext_inline=no
    ])
  ])
  VLC_RESTORE_FLAGS
  AS_IF([test "${ac_cv_mmxext_inline}" != "no"], [
    AC_DEFINE(CAN_COMPILE_MMXEXT, 1, [Define to 1 if MMX EXT inline assembly is available.])
    have_mmxext="yes"
  ])
])
AM_CONDITIONAL([HAVE_MMX], [test "${have_mmx}" = "yes"])
AM_CONDITIONAL([HAVE_MMXEXT], [test "${have_mmxext}" = "yes"])

dnl  Check for fully workin SSE2 intrinsics
dnl  We need support for -mmmx, we need <emmintrin.h>, and we also need a
dnl  working compiler (http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23963)
AC_ARG_ENABLE(sse,
  [AS_HELP_STRING([--disable-sse],
    [disable SSE (1-4) optimizations (default auto)])],, [
  case "${host_cpu}" in
    i?86|x86_64)
      enable_sse=yes
      ;;
    *)
      enable_sse=no
      ;;
  esac
])
have_sse2="no"
AS_IF([test "${enable_sse}" != "no"], [
  ARCH="${ARCH} sse sse2"

  VLC_SAVE_FLAGS
  CFLAGS="${CFLAGS} -msse2"
  AC_CACHE_CHECK([if $CC groks SSE2 intrinsics], [ac_cv_c_sse2_intrinsics], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
[#include <emmintrin.h>
#include <stdint.h>
uint64_t frobzor;]], [
[__m128i a, b, c;
a = b = c = _mm_set1_epi64((__m64)frobzor);
a = _mm_slli_epi16(a, 3);
a = _mm_adds_epi16(a, b);
c = _mm_srli_epi16(c, 8);
c = _mm_slli_epi16(c, 3);
b = _mm_adds_epi16(b, c);
a = _mm_unpacklo_epi8(a, b);
frobzor = (uint64_t)_mm_movepi64_pi64(a);]])], [
      ac_cv_c_sse2_intrinsics=yes
    ], [
      ac_cv_c_sse2_intrinsics=no
    ])
  ])
  VLC_RESTORE_FLAGS
  AS_IF([test "${ac_cv_c_sse2_intrinsics}" != "no"], [
    AC_DEFINE(HAVE_SSE2_INTRINSICS, 1, [Define to 1 if SSE2 intrinsics are available.])
  ])

  VLC_SAVE_FLAGS
  CFLAGS="${CFLAGS} -msse"
  AC_CACHE_CHECK([if $CC groks SSE inline assembly], [ac_cv_sse_inline], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[[
void *p;
asm volatile("xorps %%xmm1,%%xmm2"::"r"(p):"xmm1", "xmm2");
]])
    ], [
      ac_cv_sse_inline=yes
    ], [
      ac_cv_sse_inline=no
    ])
  ])

  AS_IF([test "${ac_cv_sse_inline}" != "no" -a "${SYS}" != "solaris"], [
    AC_DEFINE(CAN_COMPILE_SSE, 1, [Define to 1 if SSE inline assembly is available.])
  ])

  AC_CACHE_CHECK([if $CC groks SSE2 inline assembly], [ac_cv_sse2_inline], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[[
void *p;
asm volatile("punpckhqdq %%xmm1,%%xmm2"::"r"(p):"xmm1", "xmm2");
]])
    ], [
      ac_cv_sse2_inline=yes
    ], [
      ac_cv_sse2_inline=no
    ])
  ])
  AS_IF([test "${ac_cv_sse2_inline}" != "no" -a "${SYS}" != "solaris"], [
    AC_DEFINE(CAN_COMPILE_SSE2, 1, [Define to 1 if SSE2 inline assembly is available.])
    have_sse2="yes"
  ])

  # SSE3
  AC_CACHE_CHECK([if $CC groks SSE3 inline assembly], [ac_cv_sse3_inline], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[[
void *p;
asm volatile("movsldup %%xmm1,%%xmm0"::"r"(p):"xmm0", "xmm1");
]])
    ], [
      ac_cv_sse3_inline=yes
    ], [
      ac_cv_sse3_inline=no
    ])
  ])

  AS_IF([test "${ac_cv_sse3_inline}" != "no"], [
    AC_DEFINE(CAN_COMPILE_SSE3, 1, [Define to 1 if SSE3 inline assembly is available.]) ])
  # SSSE3
  AC_CACHE_CHECK([if $CC groks SSSE3 inline assembly], [ac_cv_ssse3_inline], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[[
void *p;
asm volatile("pabsw %%xmm0,%%xmm0"::"r"(p):"xmm0");
]])
    ], [
      ac_cv_ssse3_inline=yes
    ], [
      ac_cv_ssse3_inline=no
    ])
  ])

  AS_IF([test "${ac_cv_ssse3_inline}" != "no"], [
    AC_DEFINE(CAN_COMPILE_SSSE3, 1, [Define to 1 if SSSE3 inline assembly is available.]) ])

  # SSE4.1
  AC_CACHE_CHECK([if $CC groks SSE4.1 inline assembly],
                 [ac_cv_sse4_1_inline], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[[
void *p;
asm volatile("pmaxsb %%xmm1,%%xmm0"::"r"(p):"xmm0", "xmm1");
]])
    ], [
      ac_cv_sse4_1_inline=yes
    ], [
      ac_cv_sse4_1_inline=no
    ])
  ])

  AS_IF([test "${ac_cv_sse4_1_inline}" != "no"], [
    AC_DEFINE(CAN_COMPILE_SSE4_1, 1, [Define to 1 if SSE4_1 inline assembly is available.]) ])

  # SSE4.2
  AC_CACHE_CHECK([if $CC groks SSE4.2 inline assembly],
                 [ac_cv_sse4_2_inline], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[[
void *p;
asm volatile("pcmpgtq %%xmm1,%%xmm0"::"r"(p):"xmm0", "xmm1");
]])
    ], [
      ac_cv_sse4_2_inline=yes
    ], [
      ac_cv_sse4_2_inline=no
    ])
  ])

  AS_IF([test "${ac_cv_sse4_2_inline}" != "no"], [
    AC_DEFINE(CAN_COMPILE_SSE4_2, 1, [Define to 1 if SSE4_2 inline assembly is available.]) ])

  # SSE4A
  AC_CACHE_CHECK([if $CC groks SSE4A inline assembly], [ac_cv_sse4a_inline], [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[[
void *p;
asm volatile("insertq %%xmm1,%%xmm0"::"r"(p):"xmm0", "xmm1");
]])
    ], [
      ac_cv_sse4a_inline=yes
    ], [
      ac_cv_sse4a_inline=no
    ])
  ])
  VLC_RESTORE_FLAGS
  AS_IF([test "${ac_cv_sse4a_inline}" != "no"], [
    AC_DEFINE(CAN_COMPILE_SSE4A, 1, [Define to 1 if SSE4A inline assembly is available.]) ])
])
AM_CONDITIONAL([HAVE_SSE2], [test "$have_sse2" = "yes"])

VLC_SAVE_FLAGS
CFLAGS="${CFLAGS} -mmmx"
have_3dnow="no"
AC_CACHE_CHECK([if $CC groks 3D Now! inline assembly], [ac_cv_3dnow_inline], [
  AC_COMPILE_IFELSE([AC_LANG_PROGRAM(,[[
void *p;
asm volatile("pfadd %%mm1,%%mm2"::"r"(p):"mm1", "mm2");
]])
  ], [
    ac_cv_3dnow_inline=yes
  ], [
    ac_cv_3dnow_inline=no
  ])
])
VLC_RESTORE_FLAGS
AS_IF([test "${ac_cv_3dnow_inline}" != "no"], [
  AC_DEFINE(CAN_COMPILE_3DNOW, 1,
            [Define to 1 if 3D Now! inline assembly is available.])
  have_3dnow="yes"
])
AM_CONDITIONAL([HAVE_3DNOW], [test "$have_3dnow" = "yes"])


AC_ARG_ENABLE(neon,
  [AS_HELP_STRING([--disable-neon],
    [disable NEON optimizations (default auto)])],, [
  AS_IF([test "${host_cpu}" = "arm"], [enable_neon="yes"] ,[enable_neon="no"])
])
AS_IF([test "${enable_neon}" != "no"], [
  VLC_SAVE_FLAGS
  CFLAGS="${CFLAGS} -mfpu=neon -mhard-float"
  AC_CACHE_CHECK([if $CCAS groks ARM NEON assembly], [ac_cv_arm_neon], [
    AC_COMPILE_IFELSE([
      AC_LANG_PROGRAM(,[[
asm volatile("vqmovun.s64 d0, q1":::"d0");
]])
    ], [
      ac_cv_arm_neon="yes"
    ], [
      ac_cv_arm_neon="no"
    ])
  ])
  VLC_RESTORE_FLAGS
])
AM_CONDITIONAL(HAVE_NEON, [test "${ac_cv_arm_neon}" = "yes"])


AC_ARG_ENABLE(altivec,
  [AS_HELP_STRING([--disable-altivec],
    [disable AltiVec optimizations (default auto)])],, [
  AS_CASE("${host_cpu}", [powerpc*],
        [enable_altivec=yes], [enable_altivec=no])
])
have_altivec="no"
ALTIVEC_CFLAGS=""
AS_IF([test "${enable_altivec}" = "yes"], [
  ARCH="${ARCH} altivec";
  VLC_SAVE_FLAGS
  AC_CACHE_CHECK([if $CC groks AltiVec inline assembly],
    [ac_cv_altivec_inline],
    [AC_TRY_COMPILE(,[asm volatile("vperm 0,1,2,3");],
         ac_cv_altivec_inline="yes",
         [CFLAGS="${CFLAGS} -Wa,-maltivec"
          AC_TRY_COMPILE(,[asm volatile("vperm 0,1,2,3");],
            [ac_cv_altivec_inline="-Wa,-maltivec"],
            ac_cv_altivec_inline=no)
         ])])
  VLC_RESTORE_FLAGS
  AS_IF([test "${ac_cv_altivec_inline}" != "no"], [
    AC_DEFINE(CAN_COMPILE_ALTIVEC, 1,
              [Define to 1 if AltiVec inline assembly is available.])
    AS_IF([test "${ac_cv_altivec_inline}" != "yes"], [
      ALTIVEC_CFLAGS="${ac_cv_altivec_inline}"
      VLC_ADD_CFLAGS([libvlccore],[${ac_cv_altivec_inline}])
    ])
    have_altivec="yes"
  ])

  VLC_SAVE_FLAGS
  AC_CACHE_CHECK([if \$CC groks AltiVec C extensions],
  [ac_cv_c_altivec], [
    CFLAGS="${CFLAGS} -maltivec"
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
[#include <altivec.h>]], [
[vec_ld(0, (unsigned char *)0);]])], [
      ac_cv_c_altivec="-maltivec"
    ], [
      ac_cv_c_altivec="no"
    ])
  ])
  VLC_RESTORE_FLAGS
  AS_IF([test "${ac_cv_c_altivec}" != "no"], [
    CPPFLAGS="${CPPFLAGS} ${ac_cv_c_altivec}"
    AC_DEFINE(CAN_COMPILE_C_ALTIVEC, 1, [Define to 1 if C AltiVec extensions are available.])
    VLC_ADD_CFLAGS([libvlccore],[${ac_cv_c_altivec}])
    ALTIVEC_CFLAGS="$ALTIVEC_FLAGS ${ac_cv_c_altivec} ${ac_cv_c_altivec_abi}"
    VLC_ADD_CFLAGS([deinterlace],[${ac_cv_c_altivec} ${ac_cv_c_altivec_abi}])
    have_altivec="yes"
  ])
  AC_CHECK_HEADERS(altivec.h)

  VLC_SAVE_FLAGS
  LDFLAGS="${LDFLAGS} -Wl,-framework,vecLib"
  AC_CACHE_CHECK([if linker needs -framework vecLib],
    [ac_cv_ld_altivec],
    [AC_TRY_LINK([],,ac_cv_ld_altivec=yes,ac_cv_ld_altivec=no)])
  VLC_RESTORE_FLAGS
  AS_IF([test "${ac_cv_ld_altivec}" != "no"], [
    VLC_ADD_LIBS([libvlccore],[-Wl,-framework,vecLib])
  ])
])
AC_SUBST(ALTIVEC_CFLAGS)
AM_CONDITIONAL([HAVE_ALTIVEC], [test "$have_altivec" = "yes"])

dnl
dnl  Memory usage
dnl
AC_ARG_ENABLE(optimize-memory,
  [AS_HELP_STRING([--enable-optimize-memory],
    [optimize memory usage over performance])])
if test "${enable_optimize_memory}" = "yes"; then
  AC_DEFINE(OPTIMIZE_MEMORY, 1, Define if you want to optimize memory usage over performance)
fi

dnl
dnl Allow running as root (useful for people running on embedded platforms)
dnl
AC_ARG_ENABLE(run-as-root,
  [AS_HELP_STRING([--enable-run-as-root],
    [allow running VLC as root (default disabled)])])
AS_IF([test "${enable_run_as_root}" = "yes"],[
    AC_DEFINE(ALLOW_RUN_AS_ROOT, 1,
              [Define to 1 to allow running VLC as root (uid 0).])
])

dnl
dnl Stream output
dnl
AC_ARG_ENABLE(sout,
  [AS_HELP_STRING([--disable-sout],
    [disable streaming output (default enabled)])])
AS_IF([test "${enable_sout}" != "no"], [
  AC_DEFINE(ENABLE_SOUT, 1, [Define to 1 for stream output support.])
])
AM_CONDITIONAL(ENABLE_SOUT, [test "${enable_sout}" != "no"])

dnl Lua modules
AC_ARG_ENABLE(lua,
  [AS_HELP_STRING([--disable-lua],
    [disable LUA scripting support (default enabled)])])
if test "${enable_lua}" != "no"
then
  PKG_CHECK_MODULES(LUA, lua5.3, [have_lua=yes], [
    AC_MSG_WARN([${LUA_PKG_ERRORS}, trying Lua 5.2 instead])

    PKG_CHECK_MODULES(LUA, lua5.2, [have_lua=yes], [
      AC_MSG_WARN([${LUA_PKG_ERRORS}, trying Lua 5.1 instead])

      PKG_CHECK_MODULES(LUA, lua5.1, [have_lua=yes], [
        AC_MSG_WARN([${LUA_PKG_ERRORS}, trying Lua instead])
        PKG_CHECK_MODULES(LUA, lua >= 5.1, [have_lua=yes], [
            AC_MSG_WARN([${LUA_PKG_ERRORS}, trying manual detection instead])
            have_lua=yes
            AC_CHECK_HEADERS([lua.h lauxlib.h lualib.h], [], [have_lua=no])
            AC_CHECK_LIB(lua5.2, luaL_newstate, [LUA_LIBS="-llua5.2"], [
              AC_CHECK_LIB(lua5.1, luaL_newstate, [LUA_LIBS="-llua5.1"], [
                AC_CHECK_LIB(lua51, luaL_newstate, [LUA_LIBS="-llua51"], [
                  AC_CHECK_LIB(lua, luaL_newstate, [LUA_LIBS="-llua"], [
                    have_lua=no], [-lm])
                ])
              ])
            ])
          ])
        ])
      ])
    ])
  if test "x${have_lua}" != "xyes" ;  then
      AC_MSG_ERROR([Could not find lua. Lua is needed for some interfaces (rc, telnet, http) as well as many other custom scripts. Use --disable-lua to ignore this error.])
  fi
  AC_ARG_VAR([LUAC], [LUA byte compiler])
  AC_PATH_PROGS(LUAC, [${LUAC} luac5.3 luac], [false])
  AS_IF([test "${LUAC}" = "false"], [
    AC_MSG_ERROR([Could not find the LUA byte compiler.])
  ])
  AS_IF([test -d "${CONTRIB_DIR}" -a -f "${CONTRIB_DIR}/lib/liblua.a" -a `echo|${LUAC} -o - -|od -j 8 -N 2 -t x2|head -n 1|tr -s ' '|cut -d' ' -f2` != 0404], [
    AC_MSG_WARN([You need 32-bits luac when using lua from contrib.])
    have_lua=no
  ])
fi
AM_CONDITIONAL(BUILD_LUA, [test "${have_lua}" = "yes"])


dnl
dnl HTTP daemon
dnl
AC_ARG_ENABLE(httpd,
  [AS_HELP_STRING([--disable-httpd],
    [disable the built-in HTTP server (default enabled)])])
if test "${enable_httpd}" != "no"
then
  AC_DEFINE(ENABLE_HTTPD, 1, Define if you want the HTTP daemon support)
fi
AM_CONDITIONAL(BUILD_HTTPD, [test "${enable_httpd}" != "no"])


dnl
dnl VideoLAN manager
dnl
AC_ARG_ENABLE(vlm,
  [AS_HELP_STRING([--disable-vlm],
    [disable the stream manager (default enabled)])],,
  [enable_vlm="${enable_sout}"])
AS_IF([test "${enable_vlm}" != "no"], [
  AS_IF([test "${enable_sout}" = "no"], [
    AC_MSG_ERROR([VLM requires the stream output. Do not use --disable-sout.])
  ])
  AC_DEFINE(ENABLE_VLM, 1, [Define if you want the VideoLAN manager support])
])
AM_CONDITIONAL([ENABLE_VLM], [test "${enable_vlm}" != "no"])


dnl
dnl Addons manager storage and repositories modules
dnl
AC_ARG_ENABLE(addonmanagermodules,
  [AS_HELP_STRING([--disable-addonmanagermodules],
    [disable the addons manager modules (default enabled)])])
if test "${enable_addonmanagermodules}" != "no"
then
  AC_DEFINE(ENABLE_ADDONMANAGERMODULES, 1, [Define if you want the addons manager modules])
fi
AM_CONDITIONAL([ENABLE_ADDONMANAGERMODULES], [test "${enable_addonmanagermodules}" != "no"])


dnl
dnl  Input plugins
dnl

EXTEND_HELP_STRING([Input plugins:])

dnl
dnl  libarchive access module
dnl
PKG_ENABLE_MODULES_VLC([ARCHIVE], [access_archive], [libarchive >= 3.1.0], (libarchive support), [auto])

dnl
dnl  live555 input
dnl
AC_ARG_ENABLE(live555,
  [AS_HELP_STRING([--enable-live555],
    [enable RTSP input through live555 (default enabled)])])

AS_IF([test "${enable_live555}" != "no" -a -n "${CXX}"], [
  PKG_CHECK_MODULES(LIVE555, live555, [
    VLC_ADD_PLUGIN([live555])
    VLC_ADD_CXXFLAGS([live555], [$LIVE555_CFLAGS])
    VLC_ADD_LIBS([live555],[$LIVE555_LIBS])
  ], [
    AC_MSG_WARN([${LIVE555_PKG_ERRORS}.])

    AC_LANG_PUSH(C++)
    VLC_SAVE_FLAGS

    dnl detect include paths
    AS_IF([test -f "${CONTRIB_DIR}/include/UsageEnvironment.hh"], [
      CPPFLAGS_live555="-I${CONTRIB_DIR}/include/liveMedia -I${CONTRIB_DIR}/include/groupsock -I${CONTRIB_DIR}/include/BasicUsageEnvironment -I${CONTRIB_DIR}/include/UsageEnvironment"
    ], [
      AS_IF([test "${SYS}" != "os2"], [
        LIVE555_PREFIX=${LIVE555_PREFIX-"/usr"}
        CPPFLAGS_live555="-I${LIVE555_PREFIX}/include/liveMedia -I${LIVE555_PREFIX}/include/groupsock -I${LIVE555_PREFIX}/include/BasicUsageEnvironment -I${LIVE555_PREFIX}/include/UsageEnvironment"
      ], [
        LIVE555_PREFIX=${LIVE555_PREFIX-"/usr/lib/live"}
        CPPFLAGS_live555="-I${LIVE555_PREFIX}/liveMedia/include -I${LIVE555_PREFIX}/groupsock/include -I${LIVE555_PREFIX}/BasicUsageEnvironment/include -I${LIVE555_PREFIX}/UsageEnvironment/include"
        LDFLAGS_live555="-L${LIVE555_PREFIX}/liveMedia -L${LIVE555_PREFIX}/groupsock -L${LIVE555_PREFIX}/BasicUsageEnvironment -L${LIVE555_PREFIX}/UsageEnvironment"
      ])
    ])

    dnl CPP Flags
    AS_IF([test "${SYS}" = "solaris"], [
      CPPFLAGS_live555="${CPPFLAGS_live555} -DSOLARIS"
    ])
    CPPFLAGS="${CPPFLAGS} ${CPPFLAGS_live555}"
    LDFLAGS="${LDFLAGS} ${LDFLAGS_live555}"

    dnl version check
    AC_CACHE_CHECK([for live555 version 1324598400 or later], [ac_cv_live555], [
      AC_PREPROC_IFELSE([AC_LANG_PROGRAM([
[#include <liveMedia_version.hh>
#if !defined (LIVEMEDIA_LIBRARY_VERSION_INT) || (LIVEMEDIA_LIBRARY_VERSION_INT < 1324598400)
# error BOOM
#endif]])
      ], [
        ac_cv_live555="yes"
      ], [
        ac_cv_live555="no"
      ])
    ])

    AS_IF([test "$ac_cv_live555" = "no"], [
      AC_MSG_WARN([live555 is missing or its installed version is too old:
Version 2011.12.23 or later is required to proceed.
You can get an updated one from http://www.live555.com/liveMedia .])
      AS_IF([test -n "${enable_live555}"], [
        AC_MSG_ERROR([Update live555 or pass --disable-live555 to disable RTSP input support.])
      ])
    ], [
      other_libs="-lgroupsock -lBasicUsageEnvironment -lUsageEnvironment"
      other_libs_pic="-lgroupsock_pic -lBasicUsageEnvironment_pic -lUsageEnvironment_pic"
      AS_IF([test "${SYS}" = "mingw32"], [
        # add ws2_32 for closesocket, select, recv
        other_libs="$other_libs -lws2_32"
      ])

      dnl We need to check for pic because live555 don't provide shared libs
      dnl and we want to build a plugins so we need -fPIC on some arch.
      VLC_ADD_CXXFLAGS([live555], [${CPPFLAGS_live555}])
      VLC_ADD_LDFLAGS([live555], [${LDFLAGS_live555}])
      AC_CHECK_LIB(liveMedia_pic, main, [
        VLC_ADD_PLUGIN([live555])
        VLC_ADD_LIBS([live555], [-lliveMedia_pic ${other_libs_pic}])
      ],[
        AC_CHECK_LIB(liveMedia, main, [
          VLC_ADD_PLUGIN([live555])
          VLC_ADD_LIBS([live555], [-lliveMedia ${other_libs}])
        ],[],[${other_libs}])
      ],[${other_libs_pic}])
    ])
    VLC_RESTORE_FLAGS
    AC_LANG_POP(C++)
  ])
])

dnl
dnl IIDC and DV FireWire input modules
dnl
PKG_ENABLE_MODULES_VLC([DC1394], [], [libdc1394-2 >= 2.1.0], [IIDC FireWire input module], [auto])
PKG_ENABLE_MODULES_VLC([DV1394], [], [libraw1394 >= 2.0.1 libavc1394 >= 0.5.3], [DV FireWire input module], [auto])

dnl
dnl - linsys modules: access module check for libzvbi
dnl
AC_ARG_ENABLE(linsys,
  [AS_HELP_STRING([--enable-linsys],
    [Linux Linear Systems Ltd. SDI and HD-SDI input cards (default enabled)])])
AS_IF([test "$SYS" = "linux" -a "${enable_linsys}" != "no"], [
  VLC_ADD_PLUGIN([linsys_hdsdi])
  PKG_CHECK_MODULES(LINSYS_SDI, [zvbi-0.2 >= 0.2.28], [
    VLC_ADD_PLUGIN([linsys_sdi])
  ], [
    AC_MSG_WARN([${LINSYS_SDI_PKG_ERRORS}.])
  ])
])

dnl
dnl dvdread module: check for libdvdread
dnl
PKG_ENABLE_MODULES_VLC([DVDREAD], [], [dvdread > 4.9.0], [dvdread input module], [auto])

dnl
dnl libdvdnav plugin
dnl
PKG_ENABLE_MODULES_VLC([DVDNAV], [], [dvdnav > 4.9.0], [DVD with navigation input module (dvdnav)], [auto])
AS_IF([test "${enable_dvdnav}" != "no"], [
  AC_MSG_CHECKING(for dvdnav_stream_cb in dvdnav/dvdnav.h)
    AC_EGREP_HEADER(dvdnav_stream_cb,dvdnav/dvdnav.h,[
      AC_MSG_RESULT(yes)
      AC_DEFINE(HAVE_STREAM_CB_IN_DVDNAV_H, 1, For dvdnav demux support)
      ],[
      AC_MSG_RESULT(no)
    ])
])

dnl
dnl  Blu-ray Disc Support with libbluray
dnl
PKG_ENABLE_MODULES_VLC([BLURAY], [libbluray], [libbluray >= 0.6.2], (libbluray for Blu-ray disc support ) )

dnl
dnl  OpenCV wrapper and example filters
dnl
PKG_ENABLE_MODULES_VLC([OPENCV], [opencv_example opencv_wrapper], [opencv > 2.0], (OpenCV (computer vision) filter), [auto])


dnl
dnl  libsmbclient plugin
dnl
PKG_ENABLE_MODULES_VLC([SMBCLIENT], [smb], [smbclient], (SMB/CIFS support), [auto])
AS_IF([test "${SYS}" = "mingw32" -a "${enable_smbclient}" != "no"], [ VLC_ADD_PLUGIN([smb]) ])

dnl
dnl  liBDSM access module
dnl
PKG_ENABLE_MODULES_VLC([DSM], [dsm], [libdsm >= 0.2.0], [libdsm SMB/CIFS access/sd module], [auto])

dnl
dnl sftp access support
dnl
PKG_ENABLE_MODULES_VLC([SFTP], [sftp], [libssh2], (support SFTP file transfer via libssh2), [auto])

dnl
dnl nfs access support
dnl
PKG_ENABLE_MODULES_VLC([NFS], [nfs], [libnfs], (support nfs protocol via libnfs), [auto])

dnl
dnl  Video4Linux 2
dnl
AC_ARG_ENABLE(v4l2, [AS_HELP_STRING([--disable-v4l2],
  [disable Video4Linux version 2 (default auto)])])
have_v4l2="no"
AS_IF([test "$enable_v4l2" != "no"], [
  AC_CHECK_HEADERS([linux/videodev2.h sys/videoio.h], [
    have_v4l2="yes"
  ])
])
AM_CONDITIONAL(HAVE_V4L2, [test "${have_v4l2}" != "no"])

dnl
dnl special access module for Blackmagic SDI cards
dnl
AC_ARG_ENABLE(decklink,
  [AS_HELP_STRING([--disable-decklink],
    [disable Blackmagic DeckLink SDI input (default auto)])])
AC_ARG_WITH(decklink_sdk,
  [AS_HELP_STRING[--with-decklink-sdk=DIR],
    [                        location of Blackmagic DeckLink SDI SDK])])
have_decklink=no
if test "${enable_decklink}" != "no"
then
  if test "${with_decklink_sdk}" != "no" -a -n "${with_decklink_sdk}"
  then
    VLC_ADD_CPPFLAGS([decklink decklinkoutput],[-I${with_decklink_sdk}/include])
  fi
  VLC_SAVE_FLAGS
  CPPFLAGS="${CPPFLAGS} ${CPPFLAGS_decklink}"
  AC_LANG_PUSH(C++)
  AC_CHECK_HEADERS(DeckLinkAPIDispatch.cpp, [
      have_decklink=yes
  ], [
      AC_MSG_WARN(Blackmagic DeckLink SDI include files not found, decklink disabled)
  ])
  AC_LANG_POP(C++)
  VLC_RESTORE_FLAGS
fi
AM_CONDITIONAL(HAVE_DECKLINK, [ test "${have_decklink}" != "no" ])


dnl
dnl  Built-in CD-DA and VCD module
dnl
AC_ARG_ENABLE(vcd,
  [AS_HELP_STRING([--disable-vcd],
    [disable built-in VCD and CD-DA support (default enabled)])])

AC_ARG_ENABLE(libcddb,
  [AS_HELP_STRING([--disable-libcddb],
    [disable CDDB for Audio CD (default enabled)])])

if test "${enable_vcd}" != "no"
then
  AC_MSG_CHECKING(for cdrom_msf0 in linux/cdrom.h)
  AC_EGREP_HEADER(cdrom_msf0,linux/cdrom.h,[
    AC_MSG_RESULT(yes)
    VLC_ADD_PLUGIN([vcd cdda])
  ],[
    AC_MSG_RESULT(no)
  ])

  AC_MSG_CHECKING(for scsireq in sys/scsiio.h)
  AC_EGREP_HEADER(scsireq,sys/scsiio.h,[
    AC_MSG_RESULT(yes)
    VLC_ADD_PLUGIN([vcd cdda])
    AC_DEFINE(HAVE_SCSIREQ_IN_SYS_SCSIIO_H, 1, For NetBSD VCD support)
  ],[
    AC_MSG_RESULT(no)
  ])

  AC_MSG_CHECKING(for ioc_toc_header in sys/cdio.h)
  AC_EGREP_HEADER(ioc_toc_header ,sys/cdio.h,[
    AC_MSG_RESULT(yes)
    VLC_ADD_PLUGIN([vcd cdda])
    AC_DEFINE(HAVE_IOC_TOC_HEADER_IN_SYS_CDIO_H, 1, For FreeBSD VCD support)
  ],[
    AC_MSG_RESULT(no)
  ])

  if test "${SYS}" = "bsdi" -o "${SYS}" = "mingw32" -o "${SYS}" = "os2" -o "${SYS}" = "darwin"
  then
    VLC_ADD_PLUGIN([vcd cdda])
  fi

  if test "$enable_libcddb" != "no"; then
    PKG_CHECK_MODULES(LIBCDDB, [libcddb >= 0.9.5], [
      HAVE_LIBCDDB=yes
      AC_DEFINE(HAVE_LIBCDDB, 1, [Define this if you have libcddb installed])
      VLC_ADD_LIBS([cdda],[$LIBCDDB_LIBS])
      VLC_ADD_CFLAGS([cdda],[$LIBCDDB_CFLAGS])
      ],:
      [AC_MSG_WARN([${LIBCDDB_PKG_ERRORS}: CDDB access disabled.])
      HAVE_LIBCDDB=no])
  fi
fi

dnl
dnl Linux DVB
dnl
AC_CACHE_CHECK([for Linux DVB version 5.1], [ac_cv_linux_dvb_5_1], [
  AC_PREPROC_IFELSE([AC_LANG_PROGRAM([
[#include <linux/dvb/version.h>
#if (DVB_API_VERSION < 5)
# error Linux DVB API v3.2 and older are not supported.
#endif
#if (DVB_API_VERSION == 5 && DVB_API_VERSION_MINOR < 1)
# error Linux DVB API v5.0 is unsupported. Please update.
#endif
]])], [
  ac_cv_linux_dvb_5_1=yes
], [
  ac_cv_linux_dvb_5_1=no
])])
AM_CONDITIONAL([HAVE_LINUX_DVB], [test "$ac_cv_linux_dvb_5_1" = "yes"])

dnl
dnl  Screen capture module
dnl
AC_ARG_ENABLE(screen,
  [AS_HELP_STRING([--enable-screen],
    [disable screen capture (default enabled)])])
if test "${enable_screen}" != "no"; then
  if test "${SYS}" = "darwin"; then
    AC_CHECK_HEADERS(ApplicationServices/ApplicationServices.h, [
      VLC_ADD_PLUGIN([screen])
    ])
  fi
fi
AM_CONDITIONAL(HAVE_MAC_SCREEN, [test "${SYS}" = "darwin" -a "x${enable_screen}" != "xno"])

dnl
dnl  VNC/RFB access module
dnl
PKG_ENABLE_MODULES_VLC([VNC], [vnc], [libvncclient >= 0.9.9], (VNC/rfb client support), [auto])

dnl  RDP/Remote Desktop access module
dnl
PKG_ENABLE_MODULES_VLC([FREERDP], [rdp], [freerdp >= 1.0.1], (RDP/Remote Desktop client support) )

dnl
dnl  Real RTSP plugin
dnl
AC_ARG_ENABLE(realrtsp,
  [  --enable-realrtsp       Real RTSP module (default disabled)])
if test "${enable_realrtsp}" = "yes"; then
  VLC_ADD_PLUGIN([access_realrtsp])
fi

dnl
dnl MacOS eyeTV
AC_ARG_ENABLE(macosx-eyetv,
  [  --enable-macosx-eyetv   Mac OS X EyeTV (TNT Tuner) module (default enabled on Mac OS X)])
if test "x${enable_macosx_eyetv}" != "xno" &&
  (test "${SYS}" = "darwin" || test "${enable_macosx_eyetv}" = "yes")
then
  VLC_ADD_PLUGIN([access_eyetv])
fi

dnl
dnl QTKit
AC_ARG_ENABLE(macosx-qtkit,
  [  --enable-macosx-qtkit Mac OS X qtsound (audio) module (default enabled on Mac OS X)])
if test "x${enable_macosx_qtkit}" != "xno" &&
  (test "${SYS}" = "darwin" || test "${enable_macosx_qtkit}" = "yes")
then
  VLC_ADD_PLUGIN([qtsound])
fi
AM_CONDITIONAL(HAVE_QTKIT, [test "${SYS}" = "darwin" -a "x${enable_macosx_qtkit}" != "xno"])

dnl
dnl AVFoundation
AC_SUBST(have_avfoundation, ["no"])
AC_ARG_ENABLE(macosx-avfoundation,
  [  --enable-macosx-avfoundation Mac OS X avcapture (video) module (default enabled on Mac OS X)])
if test "x${enable_macosx_avfoundation}" != "xno" &&
  (test "${SYS}" = "darwin" || test "${enable_macosx_avfoundation}" = "yes")
then
  SAVED_LIBS="${LIBS}"
  LIBS="-framework AVFoundation"
  AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [])],[have_avfoundation=yes],[have_avfoundation=no])
  LIBS="${SAVED_LIBS}"
  if test "${have_avfoundation}" != "no"
  then
    VLC_ADD_PLUGIN([avcapture])
  fi
fi
AM_CONDITIONAL(HAVE_AVFOUNDATION, [test "${have_avfoundation}" != "no"])

dnl
dnl  DCP plugin (using asdcplib)
dnl
PKG_WITH_MODULES([ASDCP], [asdcplib], [have_asdcp="yes"])
AM_CONDITIONAL(HAVE_ASDCP, [test "${have_asdcp}" = "yes"])

dnl
dnl  Demux plugins
dnl

EXTEND_HELP_STRING([Mux/Demux plugins:])

dnl
dnl  libdvbpsi check for ts mux/demux
dnl
have_dvbpsi="no"
PKG_WITH_MODULES([DVBPSI], [libdvbpsi >= 1.2.0], [have_dvbpsi="yes"])
AM_CONDITIONAL(HAVE_DVBPSI, [test "${have_dvbpsi}" = "yes"])


dnl
dnl  GME demux plugin
dnl
AC_ARG_ENABLE(gme,
  [AS_HELP_STRING([--enable-gme],
    [use Game Music Emu (default auto)])])
AS_IF([test "${enable_gme}" != "no"], [
  AC_CHECK_HEADER([gme/gme.h], [
    VLC_ADD_LIBS([gme], [-lgme])
    VLC_ADD_PLUGIN([gme])
  ], [
    AS_IF([test "x${enable_gme}" != "x"], [
      AC_MSG_ERROR([GME cannot be found. Please install the development files.])