configure.in 32 KB
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dnl Autoconf settings for vlc and libdvdcss
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AC_INIT(include/common.h)
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AC_CONFIG_HEADER(include/defs.h)
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AC_CANONICAL_SYSTEM
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HAVE_VLC=0
if test -r src/interface/main.c; then
  HAVE_VLC=1
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  VLC_VERSION=0.2.90
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  AC_SUBST(VLC_VERSION)
  VLC_CODENAME=Ourumov
  AC_SUBST(VLC_CODENAME)
fi

HAVE_LIBDVDCSS=0
if test -r extras/libdvdcss/libdvdcss.c; then
  HAVE_LIBDVDCSS=1
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  LIBDVDCSS_VERSION=0.0.3
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  AC_SUBST(LIBDVDCSS_VERSION)
fi
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dnl Save CFLAGS and LDFLAGS
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save_CFLAGS="${CFLAGS}"
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save_LDFLAGS="${LDFLAGS}"
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dnl Check for tools
AC_PROG_MAKE_SET
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AC_PROG_CC
AC_PROG_CPP
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AC_PROG_RANLIB
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dnl AM_PROG_LIBTOOL
AC_PROG_INSTALL

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dnl
dnl  Endianness check, with a special test for cross-compilation
dnl
if test x${cross_compiling} != xyes; then
  AC_C_BIGENDIAN
else
  dnl  We are crosscompiling, give the user the opportunity to specify
  dnl  --with-words=big or --with-words=little ; otherwise, try to guess
  AC_ARG_WITH(words,
    [  --with-words=endianness Set endianness (big or little)])
  case "x$withval" in
    xbig)
      ac_cv_c_bigendian=yes
      ;;
    xlittle)
      ac_cv_c_bigendian=no
      ;;
    *)
      dnl  Try to guess endianness by matching patterns on a compiled
      dnl  binary, by looking for an ASCII or EBCDIC string
      ac_cv_c_bigendian=unknown
      AC_MSG_CHECKING(what the byte order looks to be)[
        cat >conftest.c <<EOF
        short am[] = { 0x4249, 0x4765, 0x6e44, 0x6961, 0x6e53, 0x7953, 0 };
        short ai[] = { 0x694c, 0x5454, 0x656c, 0x6e45, 0x6944, 0x6e61, 0 };
        void _a(void) { char*s = (char*)am; s = (char *)ai; }
        short ei[] = { 0x89D3, 0xe3e3, 0x8593, 0x95c5, 0x89c4, 0x9581, 0 };
        short em[] = { 0xc2c9, 0xc785, 0x95c4, 0x8981, 0x95e2, 0xa8e2, 0 };
        void _e(void) { char*s = (char*)em; s = (char*)ei; }
        int main(void) { _a(); _e(); return 0; }
EOF
      ]
      if test -f conftest.c
      then 
        if ${CC-cc} conftest.c -o conftest.o >config.log 2>&1 \
            && test -f conftest.o
        then
          if test `grep -l BIGenDianSyS conftest.o`
          then
            AC_MSG_RESULT("big endian")
            ac_cv_c_bigendian=yes
          fi
          if test `grep -l LiTTleEnDian conftest.o`
          then
            AC_MSG_RESULT("little endian")
            ac_cv_c_bigendian=no
          fi
        fi
      fi
      if test $ac_cv_c_bigendian = xunknown
      then
        AC_MSG_ERROR([Could not guess endianness, please use --with-words])
      fi
      dnl  Now we know what to use for endianness, just put it in the header
      if test $ac_cv_c_bigendian = yes
      then
        cat >> confdefs.h <<\EOF
#define WORDS_BIGENDIAN 1
EOF
      fi
      ;;
  esac
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fi
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dnl Check for system libs needed
AC_CHECK_FUNCS(gettimeofday select strerror strtod strtol)
AC_CHECK_FUNCS(setenv putenv)
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AC_CHECK_FUNC(connect,,[
  AC_CHECK_LIB(socket,connect,LIB="${LIB} -lsocket")
])
AC_CHECK_FUNC(gethostbyname,,[
  AC_CHECK_LIB(nsl,gethostbyname,LIB="${LIB} -lnsl")
])
AC_CHECK_FUNC(nanosleep,,[
  AC_CHECK_LIB(rt,nanosleep,LIB="${LIB} -lrt",[
    AC_CHECK_LIB(posix4,nanosleep,LIB="${LIB} -lposix4")
  ])
])
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AC_CHECK_FUNCS(usleep)
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AC_CHECK_FUNC(inet_aton,,[
  AC_CHECK_LIB(resolv,inet_aton,LIB="${LIB} -lresolv")
])
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AC_CHECK_FUNCS(vasprintf)
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AC_CHECK_FUNCS(swab)
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AC_CHECK_FUNCS([memalign valloc])
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AC_CHECK_FUNCS(sigrelse)

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dnl Check for getopt
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NEED_GETOPT=0
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AC_CHECK_FUNC(getopt_long,[AC_DEFINE(HAVE_GETOPT_LONG,1,long getopt support)],
[ # FreeBSD has a gnugetopt library for this:
  AC_CHECK_LIB([gnugetopt],[getopt_long],
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    [AC_DEFINE(HAVE_GETOPT_LONG,1,getopt support) LIB="${LIB} -lgnugetopt"],
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    [NEED_GETOPT=1])])
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AC_FUNC_MMAP
AC_TYPE_SIGNAL
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AC_CHECK_LIB(dl,dlopen,LIB="${LIB} -ldl")
AC_CHECK_LIB(m,pow,LIB_YUV="${LIB_YUV} -lm")
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dnl Check for pthreads - borrowed from XMMS
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THREAD_LIB=error
if test "x${THREAD_LIB}" = xerror; then
  AC_CHECK_LIB(pthread,pthread_attr_init,THREAD_LIB="-lpthread")
fi
if test "x${THREAD_LIB}" = xerror; then
  AC_CHECK_LIB(pthreads,pthread_attr_init,THREAD_LIB="-lpthreads")
fi
if test "x${THREAD_LIB}" = xerror; then
  AC_CHECK_LIB(c_r,pthread_attr_init,THREAD_LIB="-lc_r")
fi
if test "x${THREAD_LIB}" = xerror; then
  AC_CHECK_FUNC(pthread_attr_init)
  THREAD_LIB=""
fi
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dnl Check for cthreads under GNU/Hurd for instance
AC_CHECK_LIB(threads,cthread_fork,THREAD_LIB="-lthreads")
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dnl Check for misc headers
AC_EGREP_HEADER(pthread_cond_t,pthread.h,[
  AC_DEFINE(PTHREAD_COND_T_IN_PTHREAD_H, 1,
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            Define if <pthread.h> defines pthread_cond_t.)])
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AC_EGREP_HEADER(strncasecmp,strings.h,[
  AC_DEFINE(STRNCASECMP_IN_STRINGS_H, 1,
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            Define if <strings.h> defines strncasecmp.)])
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dnl Check for headers
AC_CHECK_HEADERS(stddef.h getopt.h strings.h)
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AC_CHECK_HEADERS(sys/sockio.h fcntl.h sys/time.h sys/times.h)
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AC_CHECK_HEADERS(sys/soundcard.h machine/soundcard.h)
AC_CHECK_HEADERS(dlfcn.h image.h)
AC_CHECK_HEADERS(arpa/inet.h net/if.h netinet/in.h sys/socket.h)
AC_CHECK_HEADERS(machine/param.h)

dnl Check for threads library
AC_CHECK_HEADERS(cthreads.h pthread.h kernel/scheduler.h kernel/OS.h)

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dnl Check for ntohl, etc.
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AC_CACHE_CHECK([for ntohl in sys/param.h],
    [ac_cv_c_ntohl_sys_param_h],
    [CFLAGS="${save_CFLAGS} -Wall -Werror"
     AC_TRY_COMPILE([#include <sys/param.h>],
        [void foo() { int meuh; ntohl(meuh); }],
        ac_cv_c_ntohl_sys_param_h=yes, ac_cv_c_ntohl_sys_param_h=no)])
if test x"$ac_cv_c_ntohl_sys_param_h" != x"no"; then
    AC_DEFINE(NTOHL_IN_SYS_PARAM_H, 1, Define if <sys/param.h> defines ntohl.)
fi
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dnl Check for inline function size limit
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AC_CACHE_CHECK([if \$CC accepts -finline-limit],
    [ac_cv_c_inline_limit],
    [CFLAGS="${save_CFLAGS} -finline-limit-30000"
     AC_TRY_COMPILE([],,ac_cv_c_inline_limit=yes, ac_cv_c_inline_limit=no)])
if test x"$ac_cv_c_inline_limit" != x"no"; then
    save_CFLAGS="${save_CFLAGS} -finline-limit-30000"
fi
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dnl Check for Darwin plugin linking flags
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AC_CACHE_CHECK([if \$CC accepts -bundle -undefined error],
    [ac_cv_ld_darwin],
    [CFLAGS="${save_CFLAGS} -bundle -undefined error"
     AC_TRY_COMPILE([],,ac_cv_ld_darwin=yes, ac_cv_ld_darwin=no)])
if test x"$ac_cv_ld_darwin" != x"no"; then
    PLCFLAGS="${PLCFLAGS} -bundle -undefined error"
fi
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dnl Check for standard plugin linking flags
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AC_CACHE_CHECK([if \$CC accepts -shared],
    [ac_cv_ld_plugins],
    [CFLAGS="${save_CFLAGS} -shared"
     AC_TRY_COMPILE([],, ac_cv_ld_plugins=yes, ac_cv_ld_plugins=no)])
if test x"$ac_cv_ld_plugins" != x"no"; then
    PLCFLAGS="${PLCFLAGS} -shared"
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fi
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dnl Check for soname setting
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if test x"${SOFLAGS}" = x; then
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    AC_CACHE_CHECK([for soname setting],
        [ac_cv_ld_soname],
        [
        # Standard
        try_SOFLAGS="-Wl,-soname -Wl,"
        LDFLAGS="${save_LDFLAGS} ${try_SOFLAGS}foo.so.0"
        AC_TRY_LINK([],,ac_cv_ld_soname="${try_SOFLAGS}", [
            # SunOS
            try_SOFLAGS="-Wl,-h -Wl,"
            LDFLAGS="${save_LDFLAGS} ${try_SOFLAGS}foo.so.0"
            AC_TRY_LINK([],,ac_cv_ld_soname="${try_SOFLAGS}",
                ac_cv_ld_soname=none)
        ])])
    if test x"$ac_cv_ld_soname" != x"none"; then
        SOFLAGS=$ac_cv_ld_soname
    else
        echo "
------------
Your system doesn't seem to have support for dynamic linking. You may
have problems using libdvdcss.
------------
"
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    fi
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fi

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dnl End of the bizarre compilation tests
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CFLAGS="${save_CFLAGS}"
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LDFLAGS="${save_LDFLAGS}"
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dnl Check for boolean_t
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AC_CACHE_CHECK([for boolean_t in sys/types.h],
    [ac_cv_c_boolean_t_sys_types_h],
    [AC_TRY_COMPILE([#include <sys/types.h>], [void quux() { boolean_t foo; }],
     ac_cv_c_boolean_t_sys_types_h=yes, ac_cv_c_boolean_t_sys_types_h=no)])
if test x"$ac_cv_c_boolean_t_sys_types_h" != x"no"; then
    AC_DEFINE(BOOLEAN_T_IN_SYS_TYPES_H, 1, Define if <sys/types.h> defines boolean_t.)
fi

AC_CACHE_CHECK([for boolean_t in pthread.h],
    [ac_cv_c_boolean_t_pthread_h],
    [AC_TRY_COMPILE([#include <pthread.h>], [void quux() { boolean_t foo; }],
     ac_cv_c_boolean_t_pthread_h=yes, ac_cv_c_boolean_t_pthread_h=no)])
if test x"$ac_cv_c_boolean_t_pthread_h" != x"no"; then
    AC_DEFINE(BOOLEAN_T_IN_PTHREAD_H, 1, Define if <pthread.h> defines boolean_t.)
fi

AC_CACHE_CHECK([for boolean_t in cthreads.h],
    [ac_cv_c_boolean_t_cthreads_h],
    [AC_TRY_COMPILE([#include <cthreads.h>], [void quux() { boolean_t foo; }],
     ac_cv_c_boolean_t_cthreads_h=yes, ac_cv_c_boolean_t_cthreads_h=no)])
if test x"$ac_cv_c_boolean_t_cthreads_h" != x"no"; then
    AC_DEFINE(BOOLEAN_T_IN_CTHREADS_H, 1, Define if <cthreads.h> defines boolean_t.)
fi
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dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_TYPE_SIZE_T
AC_HEADER_TIME

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dnl Checks for __attribute__(aligned()) directive
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])
if test x"$ac_cv_c_attribute_aligned" != x"0"; then
    AC_DEFINE_UNQUOTED([ATTRIBUTE_ALIGNED_MAX],
        [$ac_cv_c_attribute_aligned],[Maximum supported data alignment])
fi



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ARCH=${target_cpu}
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dnl
dnl  default modules
dnl
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BUILTINS="${BUILTINS} es ps ts yuv idct idctclassic motion imdct downmix"
PLUGINS="${PLUGINS}"
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dnl
dnl  Accelerated modules
dnl
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MMX_MODULES="yuvmmx idctmmx motionmmx"
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MMXEXT_MODULES="idctmmxext motionmmxext"
THREEDNOW_MODULES="imdct3dn downmix3dn"
SSE_MODULES="imdctsse downmixsse"
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ALTIVEC_MODULES="idctaltivec motionaltivec"
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AC_CACHE_CHECK([if \$CC groks MMX inline assembly],
    [ac_cv_mmx_inline],
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    [AC_TRY_COMPILE(,[void quux(){void *p;asm("packuswb %%mm1,%%mm2"::"r"(p));}],
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                    ac_cv_mmx_inline=yes, ac_cv_mmx_inline=no)])
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if test x"$ac_cv_mmx_inline" != x"no"; then
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  ACCEL_MODULES="${ACCEL_MODULES} ${MMX_MODULES}"
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fi
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AC_CACHE_CHECK([if \$CC groks MMX EXT inline assembly],
    [ac_cv_mmxext_inline],
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    [AC_TRY_COMPILE(,[void quux(){void *p;asm("maskmovq %%mm1,%%mm2"::"r"(p));}],
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                    ac_cv_mmxext_inline=yes, ac_cv_mmxext_inline=no)])
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if test x"$ac_cv_mmxext_inline" != x"no"; then
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  ACCEL_MODULES="${ACCEL_MODULES} ${MMXEXT_MODULES}"
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fi
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AC_CACHE_CHECK([if \$CC groks 3D Now! inline assembly],
    [ac_cv_3dnow_inline],
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    [AC_TRY_COMPILE(,[void quux(){void *p;asm("pfadd %%mm1,%%mm2"::"r"(p));}],
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                    ac_cv_3dnow_inline=yes, ac_cv_3dnow_inline=no)])
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if test x"$ac_cv_3dnow_inline" != x"no"; then
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  ACCEL_MODULES="${ACCEL_MODULES} ${THREEDNOW_MODULES}"
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fi
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AC_CACHE_CHECK([if \$CC groks SSE inline assembly],
    [ac_cv_sse_inline],
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    [AC_TRY_COMPILE(,[void quux(){void *p;asm("xorps %%xmm1,%%xmm2"::"r"(p));}],
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                    ac_cv_sse_inline=yes, ac_cv_sse_inline=no)])
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if test x"$ac_cv_sse_inline" != x"no"; then
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  ACCEL_MODULES="${ACCEL_MODULES} ${SSE_MODULES}"
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fi
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AC_CACHE_CHECK([if \$CC groks Altivec inline assembly],
    [ac_cv_altivec_inline],
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    [AC_TRY_COMPILE(,[void quux(){asm("vperm 0,1,2,3");}],
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         ac_cv_altivec_inline=yes,
         [save_CFLAGS=$CFLAGS
          CFLAGS="$CFLAGS -Wa,-m7400"
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          AC_TRY_COMPILE(,[void quux(){asm("vperm 0,1,2,3");}],
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            [ac_cv_altivec_inline=yes; CFLAGS_ALTIVEC="-Wa,-m7400"],
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            ac_cv_altivec_inline=no)
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          CFLAGS=$save_CFLAGS
         ])])
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if test x"$ac_cv_altivec_inline" != x"no"; then
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  ACCEL_MODULES="${ACCEL_MODULES} ${ALTIVEC_MODULES}"
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fi
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AC_CACHE_CHECK([if \$CC groks Altivec C extensions],
    [ac_cv_c_altivec],
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    [save_CFLAGS=$CFLAGS
     CFLAGS="$CFLAGS -faltivec"
     # Darwin test
     AC_TRY_COMPILE(,[void quux(){vec_mtvscr((vector unsigned int)(0));}],
        ac_cv_c_altivec=-faltivec, [
        # Linux/PPC test
        CFLAGS="$save_CFLAGS $CFLAGS_ALTIVEC -fvec"
        AC_TRY_COMPILE(,[void quux(){vec_mtvscr((vector unsigned int)(0));}],
            [ac_cv_c_altivec="-fvec"], ac_cv_c_altivec=no)
        ])
     CFLAGS=$save_CFLAGS
    ])
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if test x"$ac_cv_c_altivec" != x"no"; then
  AC_DEFINE(HAVE_C_ALTIVEC, 1, Define if your compiler groks C altivec extensions.)
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  CFLAGS_ALTIVEC="$CFLAGS_ALTIVEC $ac_cv_c_altivec"
fi

AC_CACHE_CHECK([if linker needs -framework vecLib],
    [ac_cv_ld_altivec],
    [save_LDFLAGS=$LDFLAGS
     LDFLAGS="$LDFLAGS -framework vecLib"
     AC_TRY_LINK([],,ac_cv_ld_altivec=yes,ac_cv_ld_altivec=no)
     LDFLAGS=$save_LDFLAGS
    ])
if test x"$ac_cv_ld_altivec" != x"no"; then
  LIB_ALTIVEC="-framework vecLib"
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fi

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dnl
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dnl  libdvdcss: check for DVD ioctls
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dnl
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dnl  default is no
CAN_BUILD_LIBDVDCSS=0

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dnl  for windoze
AC_CHECK_HEADERS(winioctl.h,[
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  CAN_BUILD_LIBDVDCSS="${HAVE_LIBDVDCSS}"
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])

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dnl  for Un*x and BeOS
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AC_CHECK_HEADERS(sys/ioctl.h,[
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  CAN_BUILD_LIBDVDCSS="${HAVE_LIBDVDCSS}"
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  AC_CHECK_HEADERS(sys/cdio.h sys/dvdio.h linux/cdrom.h dvd.h)
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  BSD_DVD_STRUCT=0
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  LINUX_DVD_STRUCT=0
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  dnl
  dnl Old FreeBSD: sys/cdio.h
  dnl
  AC_EGREP_HEADER(dvd_struct,sys/dvdio.h,[
    AC_DEFINE(DVD_STRUCT_IN_SYS_DVDIO_H, 1,
              Define if <sys/dvdio.h> defines dvd_struct.)
    BSD_DVD_STRUCT=1
  ])
  dnl
  dnl Newer FreeBSD: sys/dvdio.h
  dnl
  AC_EGREP_HEADER(dvd_struct,sys/cdio.h,[
    AC_DEFINE(DVD_STRUCT_IN_SYS_CDIO_H, 1,
              Define if <sys/cdio.h> defines dvd_struct.)
    BSD_DVD_STRUCT=1
  ])
  dnl
  dnl Linux: linux/cdrom.h
  dnl
  AC_EGREP_HEADER(dvd_struct,linux/cdrom.h,[
    AC_DEFINE(DVD_STRUCT_IN_LINUX_CDROM_H, 1,
              Define if <linux/cdrom.h> defines DVD_STRUCT.)
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    LINUX_DVD_STRUCT=1
  ])
  dnl
  dnl BSDI: dvd.h
  dnl
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  NEED_BSDI_LIBDVD=0
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  AC_EGREP_HEADER(dvd_struct,dvd.h,[
    AC_DEFINE(DVD_STRUCT_IN_DVD_H, 1,
              Define if <dvd.h> defines DVD_STRUCT.)
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    LIB_LIBDVDCSS="${LIB_LIBDVDCSS} -ldvd"
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    LINUX_DVD_STRUCT=1
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  ],[
    dnl
    dnl BSDI: /sys/dev/scsi/scsi_ioctl.h, using our own libdvd
    dnl
    AC_CHECK_HEADERS(/sys/dev/scsi/scsi_ioctl.h,[
      NEED_BSDI_LIBDVD=1
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      AC_DEFINE(DVD_STRUCT_IN_BSDI_DVDIOCTL_DVD_H, 1,
                Define if <extras/BSDI_dvdioctl/dvd.h> defines DVD_STRUCT.)
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      OBJ_LIBDVDCSS="${OBJ_LIBDVDCSS} bsdi_dvdioctl.o"
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      LINUX_DVD_STRUCT=1
    ])
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  ])
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  dnl
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  dnl Solaris: sys/scsi/scsi_types.h, sys/scsi/impl/uscsi.h
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  dnl
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  AC_CHECK_HEADER(sys/scsi/scsi_types.h,[
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    AC_CHECK_HEADER(sys/scsi/impl/uscsi.h,[
      AC_DEFINE(SOLARIS_USCSI, 1, Have userspace SCSI headers.)
    ])
  ])
  dnl
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  dnl Final tests to check what was detected
  dnl
  if test x$LINUX_DVD_STRUCT = x1; then
    AC_DEFINE(HAVE_LINUX_DVD_STRUCT, 1,
              Define if Linux-like dvd_struct is defined.)
  else
    if test x$BSD_DVD_STRUCT = x1; then
      AC_DEFINE(HAVE_BSD_DVD_STRUCT, 1,
                Define if BSD-like dvd_struct is defined.)
    fi
  fi
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])

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dnl
dnl  Check the operating system
dnl
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case ${target_os} in
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  bsdi*)
    SYS=bsdi
    ;;
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  darwin*)
    SYS=darwin
    ;;
  *)
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    SYS=${target_os}
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    ;;
esac

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dnl
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dnl  Special arch tuning
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dnl
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AC_ARG_WITH(tuning,
[  --with-tuning=[arch]    Enable special tuning for an architecture
                          (default i686 on IA-32 and 750 on PPC)])
if test "x$withval" != "x"; then
    TUNING=$withval
else
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    if test x${target_cpu} = xi686 -o x${target_cpu} = xi586 -o x${target_cpu} = xi486 -o x${target_cpu} = xi386; then TUNING="pentiumpro"
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    else
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        if test x${target_cpu} = xpowerpc; then TUNING="750"; fi
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    fi
fi
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dnl
dnl  MMX acceleration
dnl
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AC_ARG_ENABLE(mmx,
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[  --disable-mmx           Disable MMX optimizations (default enabled for x86)],
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[ if test x$enableval = xyes; then ARCH="${ARCH} mmx";
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    BUILTINS="${BUILTINS} ${ACCEL_MODULES}"; fi ],
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[ if test x${target_cpu} = xi686 -o x${target_cpu} = xi586 -o x${target_cpu} = xx86 -o x${target_cpu} = xi386; then ARCH="${ARCH} mmx";
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    BUILTINS="${BUILTINS} ${ACCEL_MODULES}"; fi ])
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dnl
dnl  AltiVec acceleration
dnl
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AC_ARG_ENABLE(altivec,
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[  --disable-altivec       Disable altivec optimizations (default enabled on PPC)],
[ if test x$enableval = xyes; then ARCH="${ARCH} altivec";
    BUILTINS="${BUILTINS} ${ACCEL_MODULES}"; fi ],
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[ if test x${target_cpu} = xpowerpc; then ARCH="${ARCH} altivec";
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    BUILTINS="${BUILTINS} ${ACCEL_MODULES}"; fi ])
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dnl
dnl  Debugging mode
dnl
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DEBUG=0
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AC_ARG_ENABLE(debug,
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[  --enable-debug          Enable debug mode (default disabled)],
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[ if test x$enableval = xyes; then DEBUG=1; fi ])
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dnl
dnl  Trace mode
dnl
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TRACE=0
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AC_ARG_ENABLE(trace,
[  --enable-trace          Enable trace mode (default disabled)],
[ if test x$enableval = xyes; then TRACE=1; fi ])

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dnl
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dnl  Profiling
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dnl
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GPROF=0
AC_ARG_ENABLE(gprof,
[  --enable-gprof          Enable gprof profiling (default disabled)],
[ if test x$enableval = xyes; then GPROF=1; fi ])

CPROF=0
AC_ARG_ENABLE(cprof,
[  --enable-cprof          Enable cprof profiling (default disabled)],
[ if test x$enableval = xyes;
  then
    LIB="${LIB} -lcprof"
    CPROF=1
  fi
])
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dnl
dnl  Enable/disable optimizations
dnl
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AC_ARG_ENABLE(optimizations,
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[  --disable-optimizations Disable compiler optimizations (default enabled)],
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[ if test x$enableval = xno; then OPTIMS=0; fi ],
[ OPTIMS=1 ])
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dnl
dnl  GNU portable threads
dnl
AC_ARG_ENABLE(pth,
  [  --enable-pth            Enable GNU Pth support (default disabled)],
  [ if test x$enableval = xyes; then
    AC_CHECK_LIB(pth,pth_init)
    AC_EGREP_HEADER(pth_init,pth.h,[
      AC_DEFINE(PTH_INIT_IN_PTH_H, 1,
                Define if <pth.h> defines pth_init)
    THREAD_LIB="-lpth"
    fi])
])

LIB="${LIB} ${THREAD_LIB}"

dnl
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dnl  DVD module: check for installed libdvdcss or local libdvdcss
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dnl
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NEED_LIBDVDCSS=0
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STATIC_LIBDVDCSS=0
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DUMMY_LIBDVDCSS=0
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AC_ARG_WITH(dvdcss,
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  [  --with-dvdcss[=name]    way to use libdvdcss, either 'yes' or 'no',
                          or 'local-static', 'local-shared', or a path to
                          another libdvdcss such as '/usr/local'
                          (default 'local-static')],
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  [ case "x${withval}" in
    xlocal-static|xyes)
      # local libdvdcss, statically linked
      if test x${CAN_BUILD_LIBDVDCSS} = x1
      then
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        NEED_LIBDVDCSS=1
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        STATIC_LIBDVDCSS=1
        BUILTINS="${BUILTINS} dvd"
        CFLAGS_DVD="${CFLAGS_DVD} -I../../extras/libdvdcss"
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        LIB_DVD="${LIB_DVD} lib/libdvdcss.a ${LIB_LIBDVDCSS}"
        LIB_DVD_PLUGIN="${LIB_DVD_PLUGIN} ../../lib/libdvdcss.a ${LIB_LIBDVDCSS}"
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      fi
    ;;
    xlocal-shared)
      # local libdvdcss, dynamically linked
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      if test x${CAN_BUILD_LIBDVDCSS} = x1
      then
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        NEED_LIBDVDCSS=1
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        BUILTINS="${BUILTINS} dvd"
        CFLAGS_DVD="${CFLAGS_DVD} -I../../extras/libdvdcss"
        LIB_DVD="${LIB_DVD} -Llib -ldvdcss"
        LIB_DVD_PLUGIN="${LIB_DVD_PLUGIN} -L../../lib -ldvdcss"
      fi
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    ;;
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    xno)
      # don't use libdvdcss at all, build a DVD module that can dlopen() it
      DUMMY_LIBDVDCSS=1
      BUILTINS="${BUILTINS} dvd"
      OBJ_DVD="${OBJ_DVD} dummy_dvdcss.o"
      CFLAGS_DVD="${CFLAGS_DVD} -DGOD_DAMN_DMCA"
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      CFLAGS_DVD="${CFLAGS_DVD} -DLIBDVDCSS_VERSION=\"${LIBDVDCSS_VERSION}\""
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      LIB_DVD="${LIB_DVD} -ldl"
      LIB_DVD_PLUGIN="${LIB_DVD_PLUGIN} -ldl"
    ;;
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    *)
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      # existing libdvdcss
      BUILTINS="${BUILTINS} dvd"
      if test "x$withval" != "xyes"
      then
        LIB_DVD_PLUGIN="${LIB_DVD_PLUGIN} -L"$withval"/lib"
        CFLAGS_DVD="${CFLAGS_DVD} -I"$withval"/include"
      fi
      LIB_DVD="${LIB_DVD} -ldvdcss"
      LIB_DVD_PLUGIN="${LIB_DVD_PLUGIN} -ldvdcss"
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    esac ],
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  # user didn't decide, we choose to use local libdvdcss and link statically
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  # if libdvdcss is in the archive, or to use the dummy replacement otherwise.
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  [ if test x${CAN_BUILD_LIBDVDCSS} = x1
    then
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      NEED_LIBDVDCSS=1
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      STATIC_LIBDVDCSS=1
      BUILTINS="${BUILTINS} dvd"
      CFLAGS_DVD="${CFLAGS_DVD} -I../../extras/libdvdcss"
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      LIB_DVD="${LIB_DVD} lib/libdvdcss.a ${LIB_LIBDVDCSS}"
      LIB_DVD_PLUGIN="${LIB_DVD_PLUGIN} ../../lib/libdvdcss.a ${LIB_LIBDVDCSS}"
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    else
      # XXX: no check for libdl is done, don't try this at home !
      DUMMY_LIBDVDCSS=1
      BUILTINS="${BUILTINS} dvd"
      OBJ_DVD="${OBJ_DVD} dummy_dvdcss.o"
      CFLAGS_DVD="${CFLAGS_DVD} -DGOD_DAMN_DMCA"
      LIB_DVD="${LIB_DVD} -ldl"
      LIB_DVD_PLUGIN="${LIB_DVD_PLUGIN} -ldl"
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    fi ])
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dnl
dnl  dummy plugin
dnl
AC_ARG_ENABLE(dummy,
  [  --disable-dummy         dummy module (default enabled)])
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if test x$enable_dummy != xno
then
  BUILTINS="${BUILTINS} dummy"
fi
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dnl
dnl  null plugin
dnl
AC_ARG_ENABLE(null,
  [  --disable-null          Null module (default enabled)])
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if test x$enable_null != xno
then
  BUILTINS="${BUILTINS} null"
fi
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dnl
dnl  rc plugin
dnl
AC_ARG_ENABLE(rc,
  [  --disable-rc            rc module (default enabled)])
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if test x$enable_rc != xno
then
  BUILTINS="${BUILTINS} rc"
fi
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dnl special case for BeOS
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if test x$SYS = xbeos
then
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    BUILTINS="${BUILTINS} beos"
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    LIB_BEOS="-lbe -lgame -lroot -ltracker"
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    PLCFLAGS="${PLCFLAGS} -nostart"
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dnl default case
else

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dnl
dnl  OSS /dev/dsp module
dnl
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AC_ARG_ENABLE(dsp,
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  [  --disable-dsp           Linux /dev/dsp support (default enabled)])
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if test x$enable_dsp != xno
then
  if test -c /dev/dsp
  then
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    PLUGINS="${PLUGINS} dsp"
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  fi
fi
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dnl
dnl  Esound module
dnl
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AC_ARG_ENABLE(esd,
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  [  --enable-esd            Esound library support (default disabled)],
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  [if test x$enable_esd = xyes
   then
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     AC_PATH_PROG(ESD_CONFIG, esd-config, no)
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     if test x${ESD_CONFIG} != xno
     then
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       PLUGINS="${PLUGINS} esd"
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       LIB_ESD="`${ESD_CONFIG} --libs`"
     fi
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   fi])

dnl
dnl  Darwin module
dnl
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AC_ARG_ENABLE(darwin,
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  [  --enable-darwin         Darwin sound support (default enabled on MacOS X)],
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  [if test x$enable_darwin = xyes; then
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     PLUGINS="${PLUGINS} darwin"
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     LIB_DARWIN="-framework CoreAudio"
   fi])

dnl
dnl  MacOS X module
dnl
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AC_ARG_ENABLE(macosx,
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  [  --enable-macosx         MacOS X support (default enabled on MacOS X)],
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  [if test x$enable_macosx = xyes
   then
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     BUILTINS="${BUILTINS} macosx macosx_qt"
     LIB_MACOSX="-framework CoreAudio -framework Carbon -framework AGL -framework QuickTime"
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     LIB_TS="${LIB_TS} -framework AGL -framework Carbon"
     LIB_SDL="${LIB_SDL} -framework AGL -framework Carbon"
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   fi],
  [AC_CHECK_HEADERS(Carbon/Carbon.h,
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     BUILTINS="${BUILTINS} macosx macosx_qt"
     LIB_MACOSX="-framework CoreAudio -framework Carbon -framework AGL -framework QuickTime"
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     LIB_TS="${LIB_TS} -framework AGL -framework Carbon"
     LIB_SDL="${LIB_SDL} -framework AGL -framework Carbon"
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   )])

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dnl
dnl  QNX RTOS module
dnl
AC_ARG_ENABLE(qnx,
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  [  --disable-qnx           QNX RTOS support (default enabled on QNX RTOS)])
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    if test x$enable_qnx != xno
    then
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      AC_CHECK_HEADERS(Ph.h, [
        PLUGINS="${PLUGINS} qnx"
        LIB_QNX="-lasound -lph"
      ])
    fi

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dnl
dnl  Linux framebuffer module
dnl
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AC_ARG_ENABLE(fb,
  [  --enable-fb             Linux framebuffer support (default disabled)],
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  [ if test x$enable_fb = xyes
    then
      PLUGINS="${PLUGINS} fb"
    fi ])
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dnl
dnl  GGI module
dnl
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AC_ARG_WITH(ggi,
  [  --with-ggi[=name]       GGI support (default disabled)],
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  [ if test "x$withval" != "xno"
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    then
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      PLUGINS="${PLUGINS} ggi"
      if test "x$withval" != "xyes"
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      then
        LIB_GGI="-l"$withval
      else
        LIB_GGI="-lggi"
      fi
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    fi ])
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dnl
dnl  SDL module
dnl
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AC_ARG_ENABLE(sdl,
  [  --disable-sdl           SDL support (default enabled)])
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if test "x$enable_sdl" != "xno"
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then
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  SDL_PATH=$PATH
  AC_ARG_WITH(sdl-config-path,
    [  --with-sdl-config-path=path sdl-config path (default search in \$PATH)],
    [ if test "x$withval" != "xno"
      then
        SDL_PATH=$withval:$PATH
      fi ])
  AC_PATH_PROG(SDL12_CONFIG, sdl12-config, no, $SDL_PATH)
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  SDL_CONFIG=${SDL12_CONFIG}
  SDL_HEADER="SDL12/SDL.h"
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  if test x${SDL_CONFIG} = xno
  then
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    AC_PATH_PROG(SDL11_CONFIG, sdl11-config, no, $SDL_PATH)
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    SDL_CONFIG=${SDL11_CONFIG}
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    SDL_HEADER="SDL11/SDL.h"
  fi
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  if test x${SDL_CONFIG} = xno
  then
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    AC_PATH_PROG(SDL_CONFIG, sdl-config, no, $SDL_PATH)
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    SDL_HEADER="SDL/SDL.h"
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  fi
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  if test x${SDL_CONFIG} != xno
  then
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    PLUGINS="${PLUGINS} sdl"
    CFLAGS_SDL="`${SDL_CONFIG} --cflags`"
    LIB_SDL="`${SDL_CONFIG} --libs | sed 's,-rdynamic,,'`"
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    save_CPPFLAGS=$CPPFLAGS
    CPPFLAGS="$CPPFLAGS $CFLAGS_SDL"
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    AC_CHECK_HEADERS(${SDL_HEADER}, AC_DEFINE_UNQUOTED(SDL_INCLUDE_FILE,
      <${SDL_HEADER}>, Indicate whether we should use SDL/SDL.h or SDL11/SDL.h),
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      [ AC_MSG_ERROR([The development package for SDL is not installed. 
Please install it and try again. Alternatively you can also configure with 
--disable-sdl.])
      ])
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    CPPFLAGS=$save_CPPFLAGS
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    if expr 1.1.5 \> `$SDL_CONFIG --version` >/dev/null
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    then
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      AC_MSG_ERROR([The development package for SDL is not installed.
Please install it and try again. Alternatively you can also configure with
--disable-sdl.])
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    fi
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  elif test "x$enable_sdl" =  "xyes"
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  then
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    AC_MSG_ERROR([I couldn't find the SDL package. You can download libSDL
from http://www.libsdl.org/, or configure with --disable-sdl. Have a nice day.
    ])
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  fi
fi
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dnl
dnl  Windows DirectX module
dnl
AC_ARG_WITH(directx,
  [  --with-directx[=name]   Windows DirectX support (default enabled)],
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  [ if test "x$withval" != "xno"
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    then
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      PLUGINS="${PLUGINS} directx"
      if test "x$withval" != "xyes"
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      then
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        LIB_DIRECTX="${LIB_DIRECTX} -L"$withval"/lib -lgdi32 -ldxguid"
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        INCLUDE="${INCLUDE} -I"$withval"/include"
      else
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        AC_CHECK_HEADERS(directx.h, , 
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          AC_MSG_ERROR([Cannot find DirectX headers !])
        )
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        LIB_DIRECTX="${LIB_DIRECTX} -L/usr/lib -lgdi32 -ldxguid"
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      fi
    fi ])
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    if test "x$withval" = "x"
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    then
      AC_CHECK_HEADERS(directx.h,
      [PLUGINS="${PLUGINS} directx"
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       LIB_DIRECTX="${LIB_DIRECTX} -L/usr/lib -lgdi32 -ldxguid"])
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    fi

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dnl
dnl  Glide module
dnl
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AC_ARG_WITH(glide,
  [  --with-glide[=name]     Glide (3dfx) support (default disabled)],
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  [ if test "x$withval" != "xno"
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    then
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      PLUGINS="${PLUGINS} glide"
      if test "x$withval" != "xyes"
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      then
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        LIB_GLIDE="-l"$withval" -lm"
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      else
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        LIB_GLIDE="-lglide2x -lm"
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      fi
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    fi ])
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dnl
dnl  ncurses module
dnl
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AC_ARG_ENABLE(ncurses,
  [  --enable-ncurses        ncurses interface support (default disabled)],
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  [if test x$enable_ncurses = xyes; then
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     PLUGINS="${PLUGINS} ncurses"
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     LIB_NCURSES="-lncurses"
   fi])

dnl
dnl  Qt module
dnl
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AC_ARG_ENABLE(qt,
  [  --enable-qt             Qt interface support (default disabled)],
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  [if test x$enable_qt = xyes; then
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     PLUGINS="${PLUGINS} qt"
     ALIASES="${ALIASES} qvlc"
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     LIB_QT="-lqt -L${QTDIR}/lib"
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     if test -x ${QTDIR}/bin/moc
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     then
       MOC=${QTDIR}/bin/moc
     else
       MOC=moc
     fi
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   fi])

dnl 
dnl  KDE module
dnl
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AC_ARG_ENABLE(kde,
  [  --enable-kde            KDE interface support (default disabled)],
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  [if test x$enable_kde = xyes; then
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     PLUGINS="${PLUGINS} kde"
     ALIASES="${ALIASES} kvlc"
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     LIB_KDE="-L${KDEDIR}/lib -lkfile"
     if test -x ${QTDIR}/bin/moc
     then
       MOC=${QTDIR}/bin/moc
     else
       MOC=moc
     fi
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   fi])
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dnl
dnl  Gnome module
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AC_ARG_ENABLE(gnome,
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  [  --enable-gnome          Gnome interface support (default disabled)],
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  [if test x$enable_gnome = xyes; then
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    # look for gnome-config
    AC_PATH_PROG(GNOME_CONFIG, gnome-config, no)
    if test -x ${GNOME_CONFIG}
    then
       CFLAGS_GNOME="`${GNOME_CONFIG} --cflags gnomeui`"
       LIB_GNOME="`${GNOME_CONFIG} --libs gnomeui | sed 's,-rdynamic,,'`"
    fi
    # now look for the gnome.h header
    saved_CPPFLAGS=$CPPFLAGS
    CPPFLAGS="$CPPFLAGS $CFLAGS_GNOME"
    AC_CHECK_HEADERS(gnome.h, [
      PLUGINS="${PLUGINS} gnome"
      ALIASES="${ALIASES} gnome-vlc"
     ],[
      AC_MSG_ERROR([Can't find gnome headers. Please install the gnome
developement librairie or remove the --enable-gnome option])
     ])
  
    CPPFLAGS=$saved_CPPFLAGS
  fi])
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dnl
dnl  Gtk+ module
dnl
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AC_ARG_ENABLE(gtk,
  [  --disable-gtk           Gtk+ support (default enabled)])
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if test x$enable_gtk != xno
then
  # look for gtk-config
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  AC_PATH_PROG(GTK_CONFIG, gtk-config, no)
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  if test -x ${GTK_CONFIG}
  then
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    CFLAGS_GTK="`${GTK_CONFIG} --cflags gtk`"
    LIB_GTK="`${GTK_CONFIG} --libs gtk | sed 's,-rdynamic,,'`"
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  fi
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  # now look for the gtk.h header
  saved_CPPFLAGS=$CPPFLAGS
  CPPFLAGS="$CPPFLAGS $CFLAGS_GTK"
  AC_CHECK_HEADERS(gtk/gtk.h, [
    PLUGINS="${PLUGINS} gtk"
    ALIASES="${ALIASES} gvlc"
  ])
  CPPFLAGS=$saved_CPPFLAGS
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fi
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dnl
dnl  X11 module
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AC_ARG_ENABLE(x11,
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  [  --disable-x11           X11 support (default enabled)])
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if test x$enable_x11 != xno; then
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  if test x$x_includes = xNONE; then
    x_includes=/usr/X11R6/include
  fi
  if test x$x_libraries = xNONE; then
    x_libraries=/usr/X11R6/lib
  fi
  saved_CPPFLAGS=$CPPFLAGS
  CPPFLAGS="$CPPFLAGS -I$x_includes"
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