configure.ac 141 KB
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dnl Autoconf settings for vlc
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AC_COPYRIGHT([Copyright 2002-2011 the VideoLAN team])
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AC_INIT(vlc, 1.2.0-git)
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VERSION_MAJOR="1"
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VERSION_MINOR="2"
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VERSION_REVISION="0"
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VERSION_EXTRA="-git"
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PKGDIR="vlc"
AC_SUBST(PKGDIR)
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CONFIGURE_LINE="`echo "$0 $ac_configure_args" | sed -e 's/\\\/\\\\\\\/g'`"
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CODENAME="Twoflower"
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COPYRIGHT_YEARS="1996-2011"
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AC_CONFIG_SRCDIR(src/libvlc.c)
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AC_CONFIG_AUX_DIR(autotools)
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AC_CONFIG_MACRO_DIR(m4)
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AC_CONFIG_LIBOBJ_DIR(compat)
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AC_CANONICAL_BUILD
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AC_CANONICAL_HOST
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AC_PRESERVE_HELP_ORDER
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AM_INIT_AUTOMAKE(tar-ustar color-tests)
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AM_CONFIG_HEADER(config.h)

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# Disable with "./configure --disable-silent-rules" or "make V=1"
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AM_SILENT_RULES([yes])
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dnl Too many people are not aware of maintainer mode:
dnl If you want to use it, you definitely know what you are doing, so
dnl you can specify "--disable-maintainer-mode". But if you want the default
dnl automake behavior, you've likely never heard of maintainer mode, so we
dnl can't expect you to enable it manually.
AS_IF([test "x${enable_maintainer_mode}" != "xno"],
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    [enable_maintainer_mode="yes"])
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AM_MAINTAINER_MODE

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dnl
dnl Directories
dnl
dnl vlcincludedir="\${includedir}/\${PKGDIR}"
dnl AC_SUBST(vlcincludedir)
vlcdatadir="\${datadir}/\${PKGDIR}"
AC_SUBST(vlcdatadir)
vlclibdir="\${libdir}/\${PKGDIR}"
AC_SUBST(vlclibdir)

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dnl
dnl  Save *FLAGS
dnl
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VLC_SAVE_FLAGS
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dnl
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dnl Check for tools
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dnl
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AC_PROG_CC_C99
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AC_USE_SYSTEM_EXTENSIONS
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AC_DEFINE([_FORTIFY_SOURCE], 2, [Define to 2 to get glibc warnings.])
AC_DEFINE([_FILE_OFFSET_BITS], 64, [Define to 64 for large files support.])
AC_DEFINE([_REENTRANT],, [Define to expose reentrant functions.])
AC_DEFINE([_THREAD_SAFE],, [Same as _REENTANT for some other OSes.])
AC_DEFINE([__LIBVLC__],, [Define within the LibVLC source code tree.])
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AM_PROG_CC_C_O
AC_PROG_CXX
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AC_PROG_CPP
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AC_PROG_OBJC
_AM_DEPENDENCIES([OBJC])
AC_PROG_EGREP
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AC_PROG_MAKE_SET
AC_PROG_INSTALL
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AM_PROG_AS
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dnl Find the right ranlib, even when cross-compiling
AC_CHECK_TOOL(RANLIB, ranlib, :)
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AC_CHECK_TOOL(STRIP, strip, :)
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AC_CHECK_TOOL(AR, ar, :)
AC_CHECK_TOOL(LD, ld, :)
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AC_CHECK_TOOL(DLLTOOL, dlltool, :)
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dnl Check for compiler properties
AC_C_CONST
AC_C_INLINE
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AC_C_RESTRICT
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dnl Extend the --help string at the current spot.
AC_DEFUN([EXTEND_HELP_STRING], [m4_divert_once([HELP_ENABLE], [$1])])

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dnl Allow binary package maintainer to pass a custom string to avoid
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dnl cache problem
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AC_ARG_WITH(binary-version,
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    AS_HELP_STRING([--with-binary-version=STRING],
         [To avoid plugins cache problem between binary version]),[],[])
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AS_IF([test -n "${with_binary_version}"],[
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    AC_DEFINE_UNQUOTED([DISTRO_VERSION],["${with_binary_version}"],
         [Binary specific version])
])
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dnl
dnl  Check for the contrib directory
dnl
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AC_ARG_WITH(contrib,
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  [AS_HELP_STRING([--without-contrib],
    [do not use the libraries in CONTRIB_DIR])])
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AC_ARG_VAR([CONTRIB_DIR], [directory containing pre-built contrib, overriding extras/contrib])
AS_IF([test "${with_contrib}" != "no"],[
  AS_IF([test -z "$CONTRIB_DIR"], [
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      topdir="`dirname $0`"
      if test "`echo \"$topdir\" | cut -c 1`" != "/"; then
         topdir="`pwd`/$topdir"
      fi
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      CONTRIB_DIR="${topdir}/extras/contrib/hosts/${host}"
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      if ! test -d "$CONTRIB_DIR"
      then
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        gccmachine=`$CC -dumpmachine`
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        CONTRIB_DIR="${topdir}/extras/contrib/hosts/${gccmachine}"
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      fi
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  ])
  AC_MSG_CHECKING([for libs in ${CONTRIB_DIR}])
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  AS_IF([test -d "${CONTRIB_DIR}/lib"],[
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    AC_MSG_RESULT([yes])
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    AC_SUBST(CONTRIB_DIR)
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    export PATH=${CONTRIB_DIR}/bin:$PATH
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    CPPFLAGS="${CPPFLAGS} -I${CONTRIB_DIR}/include"
    CPPFLAGS_save="${CPPFLAGS_save} -I${CONTRIB_DIR}/include"
    CFLAGS="${CFLAGS} -I${CONTRIB_DIR}/include"
    CFLAGS_save="${CFLAGS_save} -I${CONTRIB_DIR}/include"
    CXXFLAGS="${CXXFLAGS} -I${CONTRIB_DIR}/include"
    CXXFLAGS_save="${CXXFLAGS_save} -I${CONTRIB_DIR}/include"
    OBJCFLAGS="${OBJCFLAGS} -I${CONTRIB_DIR}/include"
    OBJCFLAGS_save="${OBJCFLAGS_save} -I${CONTRIB_DIR}/include"
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    if test "$build" = "$host" -o "$PKG_CONFIG_LIBDIR"; then
        export PKG_CONFIG_PATH="${CONTRIB_DIR}/lib/pkgconfig:$PKG_CONFIG_PATH"
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    else
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        export PKG_CONFIG_LIBDIR="${CONTRIB_DIR}/lib/pkgconfig"
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    fi
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    LDFLAGS="${LDFLAGS} -L${CONTRIB_DIR}/lib"
    LDFLAGS_save="${LDFLAGS_save} -L${CONTRIB_DIR}/lib"
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    if test "${SYS}" = "darwin"; then
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      export LD_LIBRARY_PATH="${CONTRIB_DIR}/lib:$LD_LIBRARY_PATH"
      export DYLD_LIBRARY_PATH="${CONTRIB_DIR}/lib:$DYLD_LIBRARY_PATH"
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    fi
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  ],[
    AC_MSG_RESULT([no])
    CONTRIB_DIR=""
  ])
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])
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dnl
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dnl  Set default values
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dnl
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LDFLAGS_vlc="${LDFLAGS}"
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dnl
dnl  Check the operating system
dnl
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HAVE_WIN64="0"
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case "${host_os}" in
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  "")
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    SYS=unknown
    ;;
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  linux*)
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    SYS=linux
    ;;
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  bsdi*)
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    SYS=bsdi
    CFLAGS_save="${CFLAGS_save} -pthread"; CFLAGS="${CFLAGS_save}"
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    VLC_ADD_LIBS([vcd cdda vcdx],[-ldvd])
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    ;;
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  *bsd*)
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    SYS="${host_os}"
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    CFLAGS_save="${CFLAGS_save} -pthread"; CFLAGS="${CFLAGS_save}"
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    case "${host_os}" in
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      freebsd*)
        CPPFLAGS_save="${CPPFLAGS_save} -I/usr/local/include"
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        CPPFLAGS="${CPPFLAGS_save}"
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        LDFLAGS_save="${LDFLAGS_save} -L/usr/local/lib"
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        LDFLAGS="${LDFLAGS_save}"
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        ;;
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      openbsd*)
        CPPFLAGS_save="${CPPFLAGS_save} -I/usr/local/include -I/usr/X11R6/include"
        CPPFLAGS="${CPPFLAGS_save}"
        LDFLAGS_save="${LDFLAGS_save} -L/usr/local/lib -L/usr/X11R6/lib/"
        LDFLAGS="${LDFLAGS_save}"
        ;;
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    esac
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    ;;
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  darwin*)
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    dnl Force gcc "-arch" flag
    ARCH_flag=""
    case "${host}" in
      i386*)
        ARCH_flag="-arch i386"
      ;;
      ppc64*)
        ARCH_flag="-arch ppc64"
      ;;
      ppc*)
        ARCH_flag="-arch ppc"
      ;;
      x86_64*)
        ARCH_flag="-arch x86_64"
      ;;
    esac

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    SYS=darwin
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    CFLAGS_save="${CFLAGS_save} -D_INTL_REDIRECT_MACROS ${ARCH_flag}"; CFLAGS="${CFLAGS_save}"
    CXXFLAGS_save="${CXXFLAGS_save} -D_INTL_REDIRECT_MACROS ${ARCH_flag}"; CXXFLAGS="${CXXFLAGS_save}"
    CPPFLAGS_save="${CPPFLAGS_save} ${ARCH_flag}"; CPPFLAGS="${CPPFLAGS_save}"
    OBJCFLAGS_save="${OBJCFLAGS_save} -D_INTL_REDIRECT_MACROS -std=gnu99 ${ARCH_flag}"; OBJCFLAGS="${OBJCFLAGS_save}"
    LDFLAGS_save="${LDFLAGS_save} -Wl,-headerpad_max_install_names ${ARCH_flag}"; LDFLAGS="${LDFLAGS_save}"
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    VLC_ADD_LDFLAGS([mkv mp4 motion], [-Wl,-framework,IOKit,-framework,CoreFoundation])
    VLC_ADD_LDFLAGS([libvlc vlc],[-Wl,-undefined,dynamic_lookup])
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    VLC_ADD_LDFLAGS([avcodec avformat access_avio swscale postproc i420_rgb_mmx x264],[-Wl,-read_only_relocs,suppress])
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    VLC_ADD_CFLAGS([motion],[-fconstant-cfstrings])
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    VLC_ADD_LDFLAGS([libvlccore],[-Wl,-framework,CoreFoundation])
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    AC_ARG_ENABLE(macosx-defaults,
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      AS_HELP_STRING([--enable-macosx-defaults],[Build the default configuration on Mac OS X (default enabled)]))
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    if test "x${enable_macosx_defaults}" != "xno"
    then
        echo ""
        echo "Building with Mac OS X defaults:"
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        build_dir=`pwd`
        echo "  Assuming --prefix=${build_dir}/vlc_install_dir"
        ac_default_prefix="${build_dir}/vlc_install_dir"
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        enable_faad="yes"
        echo "  Assuming --enable-faad"
        enable_flac="yes"
        echo "  Assuming --enable-flac"
        enable_theora="yes"
        echo "  Assuming --enable-theora"
        enable_shout="yes"
        echo "  Assuming --enable-shout"
        enable_vcdx="yes"
        echo "  Assuming --enable-vcdx"
        enable_caca="yes"
        echo "  Assuming --enable-caca"
        enable_ncurses="yes"
        echo "  Assuming --enable-ncurses"
        enable_twolame="yes"
        echo "  Assuming --enable-twolame"
        enable_realrtsp="yes"
        echo "  Assuming --enable-realrtsp"
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        enable_libass="yes"
        echo "  Assuming --enable-libass"
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        enable_skins2="no"
        echo "  Assuming --disable-skins2"
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        enable_xcb="no"
        echo "  Assuming --disable-xcb"
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    fi
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    dnl
    dnl  Check for Mac OS X SDK settings
    dnl
    AC_ARG_WITH(macosx-sdk,
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      [AS_HELP_STRING([--with-macosx-sdk=DIR],
        [compile using the SDK in DIR])])
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    if test "${with_macosx_sdk}" != "" ; then
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        CPP="${CPP} -isysroot ${with_macosx_sdk}"
        CC="${CC} -isysroot ${with_macosx_sdk}"
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        CXX="${CXX} -isysroot ${with_macosx_sdk}"
        OBJC="${OBJC} -isysroot ${with_macosx_sdk}"
        LD="${LD} -syslibroot ${with_macosx_sdk}"
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    else
        echo "  No desired SDK version given, falling back to 10.5"
        CPP="${CPP} -isysroot /Developer/SDKs/MacOSX10.5.sdk"
        CC="${CC} -isysroot /Developer/SDKs/MacOSX10.5.sdk"
        CXX="${CXX} -isysroot /Developer/SDKs/MacOSX10.5.sdk"
        OBJC="${OBJC} -isysroot /Developer/SDKs/MacOSX10.5.sdk"
        LD="${LD} -syslibroot /Developer/SDKs/MacOSX10.5.sdk"
        with_macosx_version_min="10.5"
        echo "  Assuming --with-macosx-version-min=10.5"
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    fi
    AC_ARG_WITH(macosx-version-min,
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      [AS_HELP_STRING([--with-macosx-version-min=VERSION],
        [compile for MacOS X VERSION and above])])
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    if test "${with_macosx_version_min}" != "" ; then
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        CPP="${CPP} -mmacosx-version-min=${with_macosx_version_min}"
        CC="${CC} -mmacosx-version-min=${with_macosx_version_min}"
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        CXX="${CXX} -mmacosx-version-min=${with_macosx_version_min}"
        OBJC="${OBJC} -mmacosx-version-min=${with_macosx_version_min}"
        LD="${LD} -macosx_version_min=${with_macosx_version_min}"
        CFLAGS_save="${CFLAGS_save} -DMACOSX_DEPLOYMENT_TARGET=${with_macosx_version_min}"; CFLAGS="${CFLAGS_save}"
        CXXFLAGS_save="${CXXFLAGS_save} -DMACOSX_DEPLOYMENT_TARGET=${with_macosx_version_min}"; CXXFLAGS="${CXXFLAGS_save}"
        OBJCFLAGS_save="${OBJCFLAGS_save} -DMACOSX_DEPLOYMENT_TARGET=${with_macosx_version_min}"; OBJCFLAGS="${OBJCFLAGS_save}"
        MACOSX_DEPLOYMENT_TARGET=${with_macosx_version_min}
        export MACOSX_DEPLOYMENT_TARGET
    fi
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    ;;
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  *mingw32* | *cygwin* | *wince* | *mingwce*)
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    AC_CHECK_TOOL(WINDRES, windres, :)
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    AC_CHECK_TOOL(OBJCOPY, objcopy, :)
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    AC_DEFINE([_WIN32_WINNT], 0x0501, [Define to '0x0501' for Windows XP APIs.])
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    AC_DEFINE([_WIN32_IE], 0x0501, [Define to '0x0501' for IE 5.01 (and shell) APIs.])
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    case "${host_os}" in
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      *wince* | *mingwce* | *mingw32ce*)
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        SYS=mingwce
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        dnl Sadly CeGCC still needs non-wince macros
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        ;;
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      *mingw32*)
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        SYS=mingw32
        ;;
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      *cygwin*)
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        dnl Check if we are using the mno-cygwin mode in which case we are
        dnl actually dealing with a mingw32 compiler.
        AC_EGREP_CPP(yes,
            [#ifdef WIN32
             yes
             #endif],
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            SYS=mingw32, AC_MSG_ERROR([VLC requires -mno-cygwin]))
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        ;;
    esac

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    if test "${SYS}" = "mingw32"; then
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        # add ws2_32 for closesocket, select, recv
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        VLC_ADD_LIBS([libvlccore],[-lws2_32 -lnetapi32 -lwinmm])
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        VLC_ADD_LDFLAGS([vlc],[-mwindows])
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        VLC_ADD_LIBS([win32text],[-lgdi32])
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        VLC_ADD_LIBS([cdda vcdx sdl_image aout_sdl vout_sdl],[-lwinmm])
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        VLC_ADD_LIBS([access_http access_mms access_udp access_tcp access_ftp access_rtmp access_output_udp access_output_shout access_output_rtmp sap stream_out_standard stream_out_select stream_out_rtp stream_out_raop vod_rtsp access_realrtsp rtp oldrc netsync gnutls growl_udp flac ts audioscrobbler lua remoteosd zvbi audiobargraph_a netsync],[-lws2_32])
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        VLC_ADD_LIBS([filesystem], [-lshlwapi])
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        dnl
        dnl DEP and ASLR options
        dnl
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        AC_ARG_WITH(peflags,
          [AS_HELP_STRING([--with-peflags],
            [use peflags (default enabled on Windows)])])
        if test "${with_peflags}" != "no" ; then
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          AC_PATH_TOOL(PEFLAGS, peflags, :)
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        fi
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        AC_CHECK_PROGS(U2D, [unix2dos todos], unix2dos)
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        ac_default_prefix="`pwd`/_win32"
        DESTDIR="`pwd`/_win32/"
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        dnl
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        dnl NSIS Installer prefix and WIN64
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        dnl
        case "${host}" in
            amd64*|i686-w64*|x86_64*)
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                HAVE_WIN64="1"
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                PROGRAMFILES="PROGRAMFILES64"
            ;;
            *)
                PROGRAMFILES="PROGRAMFILES"
            ;;
        esac
        AC_SUBST(PROGRAMFILES)

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    fi
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    if test "${SYS}" = "mingwce"; then
        # add ws2 for closesocket, select, recv
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        VLC_ADD_LIBS([libvlccore access_http access_mms access_udp access_tcp access_ftp access_rtmp access_output_udp access_output_rtmp sap netsync audioscrobbler growl rtp stream_out_standard stream_out_select stream_out_rtp remoteosd ts audiobargraph_a netsync],[-lws2])
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        VLC_ADD_LIBS([libvlccore],[-lmmtimer])
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        AC_CHECK_PROGS(U2D, [unix2dos todos], unix2dos)
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        ac_default_prefix="`pwd`/_wince"
        DESTDIR="`pwd`/_wince/"
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    fi
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    ;;
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  *nto*)
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    SYS=nto
    ;;
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  solaris*)
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    SYS=solaris
    ;;
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  hpux*)
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    SYS=hpux
    ;;
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  symbian*)
    SYS=symbian
    ;;
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  *os2*)
    SYS=os2
    LDFLAGS_save="${LDFLAGS_save} -Zomf -Zbin-files -Zargs-wild"; LDFLAGS="${LDFLAGS_save}"
    ;;
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  *)
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    SYS="${host_os}"
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    ;;
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esac
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AM_CONDITIONAL(HAVE_DARWIN,  test "${SYS}" = "darwin")
AM_CONDITIONAL(HAVE_LINUX,   test "${SYS}" = "linux")
AM_CONDITIONAL(HAVE_OS2,     test "${SYS}" = "os2")
AM_CONDITIONAL(HAVE_WIN32,   test "${SYS}" = "mingw32")
AM_CONDITIONAL(HAVE_WIN64,   test "${HAVE_WIN64}" = "1")
AM_CONDITIONAL(HAVE_WINCE,   test "${SYS}" = "mingwce")
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AM_CONDITIONAL(HAVE_SYMBIAN, test "${SYS}" = "symbian")
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AM_CONDITIONAL(USE_PEFLAGS,  test "${with_peflags}" = "yes")
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dnl
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dnl Sadly autoconf doesn't think about testing foo.exe when ask to test
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dnl for program foo on win32

case "${build_os}" in
    cygwin|msys)
        ac_executable_extensions=".exe"
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    ;;
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    *)
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    ;;
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esac

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dnl Android is linux, but a bit different
AS_IF([test "$SYS" = linux],[
    AC_MSG_CHECKING([for an Android system])
    AC_PREPROC_IFELSE([AC_LANG_PROGRAM(
        [[#ifndef __ANDROID__
         # error Not Android
         #endif
        ]],[[;]])
    ],[
      HAVE_ANDROID="1"
      AC_MSG_RESULT([yes])
    ],[
      AC_MSG_RESULT([no])
    ])
])
AM_CONDITIONAL(HAVE_ANDROID, test "${HAVE_ANDROID}" = "1")

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dnl
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dnl  Libtool
dnl  It's very bad, but our former custom system was worst
dnl  -- Courmisch
dnl
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dnl override platform specific check for dependent libraries
dnl otherwise libtool linking of shared libraries will
dnl fail on anything other than pass_all.
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AC_CACHE_VAL(lt_cv_deplibs_check_method,
    [lt_cv_deplibs_check_method=pass_all])
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AC_DISABLE_STATIC
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dnl AC_DISABLE_FAST_INSTALL
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AC_LIBTOOL_DLOPEN
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AC_LIBTOOL_WIN32_DLL
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m4_undefine([AC_PROG_F77])
m4_defun([AC_PROG_F77],[])
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AC_PROG_LIBTOOL

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m4_undefine([AC_DEPLIBS_CHECK_METHOD])
m4_defun([AC_DEPLIBS_CHECK_METHOD],[])

lt_cv_deplibs_check_method=pass_all

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AS_IF([test "${enable_shared}" = "no"], [
  AC_MSG_ERROR([VLC is based on plugins. Shared libraries cannot be disabled.])
])

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dnl
dnl Gettext stuff
dnl
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AM_GNU_GETTEXT_VERSION([0.18.1])
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AM_GNU_GETTEXT([external])
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VLC_ADD_LIBS([libvlccore vlc], [${LTLIBINTL}])
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dnl
dnl Iconv stuff
dnl
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AM_ICONV
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VLC_ADD_CFLAGS([libvlccore],[${INCICONV}])
VLC_ADD_LIBS([libvlccore],[${LTLIBICONV}])
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dnl Check for broken versions of mingw-runtime compatability library
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AS_IF([test "${SYS}" = "mingw32" -o "${SYS}" = "mingwce"], [
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    AC_MSG_CHECKING(for broken mingw-runtime)
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    AC_PREPROC_IFELSE([AC_LANG_SOURCE([
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#include <_mingw.h>
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#if (__MINGW32_MAJOR_VERSION == 3) && (__MINGW32_MINOR_VERSION < 15)
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#ifndef __MINGW64_VERSION_MAJOR
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# error Attempting to use mingw-runtime with broken vsnprintf support
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#endif
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#endif
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    ])], [
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        AC_MSG_RESULT([ok])
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    ], [
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        AC_MSG_RESULT([present])
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        AC_MSG_ERROR([LibVLC requires mingw-runtime version 3.15 or higher!])
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    ])
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    dnl force use of mingw provided c99 *printf over msvcrt
    CPPFLAGS="${CPPFLAGS} -D__USE_MINGW_ANSI_STDIO=1"
    CPPFLAGS_save="${CPPFLAGS_save} -D__USE_MINGW_ANSI_STDIO=1"
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])
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dnl Check for the need to include the mingwex lib for mingw32
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if test "${SYS}" = "mingw32" ; then
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    AC_CHECK_LIB(mingwex,opendir,
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        AC_CHECK_LIB(mingw32,opendir,,
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            [VLC_ADD_LIBS([libvlccore],[-lmingwex])])
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    )
fi

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dnl Check for fnative-struct or mms-bitfields support for mingw32
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if test "${SYS}" = "mingw32" ; then
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    AC_CACHE_CHECK([if \$CC accepts -mms-bitfields],
        [ac_cv_c_mms_bitfields],
        [CFLAGS="${CFLAGS_save} -mms-bitfields"
         AC_TRY_COMPILE([],,ac_cv_c_mms_bitfields=yes, ac_cv_c_mms_bitfields=no)])
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    if test "${ac_cv_c_mms_bitfields}" != "no"; then
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        CFLAGS_save="${CFLAGS_save} -mms-bitfields";
        CXXFLAGS_save="${CXXFLAGS_save} -mms-bitfields";
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    else
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        AC_CACHE_CHECK([if \$CC accepts -fnative-struct],
            [ac_cv_c_fnative_struct],
            [CFLAGS="${CFLAGS_save} -fnative-struct"
             AC_TRY_COMPILE([],,ac_cv_c_fnative_struct=yes, ac_cv_c_fnative_struct=no)])
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        if test "${ac_cv_c_fnative_struct}" != "no"; then
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            CFLAGS_save="${CFLAGS_save} -fnative-struct";
            CXXFLAGS_save="${CXXFLAGS_save} -fnative-struct";
        fi
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    fi

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    CFLAGS="${CFLAGS_save}"; CXXFLAGS="${CXXFLAGS_save}"
fi

dnl Check for fvtable-thunks support for mingw32
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if test "${SYS}" = "mingw32" -a "${CXX}" != "" ; then
    AC_LANG_PUSH(C++)
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    AC_CACHE_CHECK([if \$CXX accepts -fvtable-thunks],
        [ac_cv_cxx_fvtable_thunks],
        [CXXFLAGS="${CXXFLAGS_save} -Wall -Werror -fvtable-thunks"
         AC_TRY_COMPILE([],,ac_cv_cxx_fvtable_thunks=yes,
                        ac_cv_cxx_fvtable_thunks=no)])
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    if test "${ac_cv_cxx_fvtable_thunks}" = "yes"; then
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        CXXFLAGS_mingw32_special="-fvtable-thunks"
    fi

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    CXXFLAGS_save="${CXXFLAGS_save} ${CXXFLAGS_mingw32_special}"; CXXFLAGS="${CXXFLAGS_save}"
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    AC_LANG_POP(C++)
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fi

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dnl
dnl Buggy glibc prevention. Purposedly not cached.
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dnl See sourceware.org bugs 5058 and 5443.
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dnl Ubuntu alone has 20 bug numbers for this...
dnl
AC_MSG_CHECKING(for buggy GNU/libc versions)
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AC_PREPROC_IFELSE([AC_LANG_SOURCE([
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#include <limits.h>
#if defined (__GLIBC__) && (__GLIBC__ == 2) \
  && (__GLIBC_MINOR__ >= 5) && (__GLIBC_MINOR__ <= 7)
# error GNU/libc with dcgettext killer bug!
#endif
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])], [
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  AC_MSG_RESULT([not present])
], [
  AC_MSG_RESULT([found])
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  AS_IF([test "x${enable_nls}" != "xno"], [
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    AC_MSG_ERROR([Buggy GNU/libc (version 2.5 - 2.7) present. VLC would crash; there is no viable
work-around for this. Check with your distribution vendor on how to update the
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glibc run-time. Alternatively, build with --disable-nls.])
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  ], [
    AC_DEFINE(DISABLE_BUGGY_GLIBC_CHECK, 1, [Disables runtime check for buggy glibc.])
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  ])
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])

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dnl Plugin compilation stuff

VLC_LIBRARY_SUFFIX

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dnl The -DSYS_FOO flag
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CPPFLAGS_save="${CPPFLAGS_save} -DSYS_`echo ${SYS} | sed -e 's/-.*//' | tr 'abcdefghijklmnopqrstuvwxyz.' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`"; CPPFLAGS="${CPPFLAGS_save}"
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dnl Check for system libs needed
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need_libc=false
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dnl Check for usual libc functions
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AC_CHECK_FUNCS([daemon fcntl fdopendir fstatvfs fork getenv getpwuid_r gettimeofday if_nameindex if_nametoindex isatty lstat memalign mmap openat pread posix_fadvise posix_madvise posix_memalign setlocale stricmp strnicmp uselocale])
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AC_REPLACE_FUNCS([asprintf atof atoll dirfd flockfile fsync getcwd getdelim getpid gmtime_r lldiv localtime_r nrand48 rewind setenv strcasecmp strcasestr strdup strlcpy strncasecmp strndup strnlen strsep strtof strtok_r strtoll swab tdestroy vasprintf])
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AC_CHECK_FUNCS(fdatasync,,
  [AC_DEFINE(fdatasync, fsync, [Alias fdatasync() to fsync() if missing.])
])
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# Windows CE doesn't have strcoll()
AC_FUNC_STRCOLL

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dnl Check for non-standard system calls
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AC_CHECK_FUNCS([accept4 pipe2 eventfd vmsplice sched_getaffinity])
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AH_BOTTOM([#include <vlc_fixups.h>])

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SOCKET_LIBS=""
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AC_CHECK_FUNCS(connect,,[
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  AC_CHECK_LIB(socket,connect,[
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    VLC_ADD_LIBS([libvlccore cdda],-lsocket)
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    SOCKET_LIBS="-lsocket"
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  ])
])
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AC_SUBST(SOCKET_LIBS)
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AC_CHECK_FUNCS(send,,[
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  AC_CHECK_LIB(socket,send,[
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    VLC_ADD_LIBS([access_http access_mms access_udp access_tcp access_ftp access_rtmp sap access_output_udp access_output_rtmp stream_out_standard growl_udp remoteosd netsync],[-lsocket])
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  ])
])
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dnl Check for socklen_t
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AH_TEMPLATE(socklen_t, [Define to `int' if <sys/socket.h> does not define.])
AC_CACHE_CHECK([for socklen_t in sys/socket.h],
ac_cv_type_socklen_t,
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
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[#include <sys/types.h>
#ifdef WIN32
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# include <winsock2.h>
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# include <ws2tcpip.h>
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#else
# include <sys/socket.h>
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#endif]], [[socklen_t len; len = 0;]])],
ac_cv_type_socklen_t=yes,
ac_cv_type_socklen_t=no)])
AS_IF([test "$ac_cv_type_socklen_t" = no],
 [AC_DEFINE(socklen_t, int)])
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dnl Check for struct sockaddr_storage
AH_TEMPLATE(sockaddr_storage, [Define to `sockaddr' if <sys/socket.h> does not define.])
AH_TEMPLATE(ss_family, [Define to `sa_family' if <sys/socket.h> does not define.])
AC_CACHE_CHECK([for struct sockaddr_storage], ac_cv_struct_sockaddr_storage,
  [AC_TRY_COMPILE(
    [#include <sys/types.h>
     #if defined( UNDER_CE )
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     # include <winsock2.h>
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     #elif defined( WIN32 )
     # include <winsock2.h>
     #else
     # include <sys/socket.h>
     #endif], [struct sockaddr_storage addr;],
     ac_cv_struct_sockaddr_storage=yes,
     ac_cv_struct_sockaddr_storage=no)])
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AS_IF([test "${ac_cv_struct_sockaddr_storage}" = no], [
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  AC_DEFINE(sockaddr_storage, sockaddr)
  AC_DEFINE(ss_family, sa_family)
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])
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dnl getaddrinfo, getnameinfo and gai_strerror check
637
dnl  -lnsl and -lsocket are needed on Solaris;
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dnl  we purposedly make the test fail on Windows
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LIBS_save="${LIBS}"
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AC_SEARCH_LIBS([getaddrinfo], [nsl],,, [${SOCKET_LIBS}])
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LIBS="${LIBS_save}"

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dnl Check for va_copy
AC_CACHE_CHECK([for va_copy], ac_cv_c_va_copy,
  AC_TRY_LINK(
    [#include <stdarg.h>],
    [va_list ap1, ap2; va_copy(ap1,ap2);],
    [ac_cv_c_va_copy="yes"],
    [ac_cv_c_va_copy="no"]))
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if test "${ac_cv_c_va_copy}" = "yes"; then
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  AC_DEFINE(HAVE_VA_COPY, 1, [Define if <stdarg.h> defines va_copy.])
fi
AC_CACHE_CHECK([for __va_copy], ac_cv_c___va_copy,
  AC_TRY_LINK(
    [#include <stdarg.h>],
    [va_list ap1, ap2; __va_copy(ap1,ap2);],
    [ac_cv_c___va_copy="yes"],
    [ac_cv_c___va_copy="no"]))
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if test "${ac_cv_c___va_copy}" = "yes"; then
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  AC_DEFINE(HAVE___VA_COPY, 1, [Define if <stdarg.h> defines __va_copy.])
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fi

663
AC_CHECK_FUNCS(inet_aton,,[
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  AC_CHECK_LIB(resolv,inet_aton,[
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    VLC_ADD_LIBS([libvlccore],[-lresolv])
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  ])
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])
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dnl FreeBSD has a gnugetopt library for this:
GNUGETOPT_LIBS=""
AC_CHECK_FUNC(getopt_long,, [
  AC_CHECK_LIB([gnugetopt],[getopt_long], [
    GNUGETOPT_LIBS="-lgnugetopt"
  ])
])
AC_SUBST(GNUGETOPT_LIBS)
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if test "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"; then
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AC_CHECK_LIB(m,cos,[
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  VLC_ADD_LIBS([adjust wave ripple psychedelic gradient a52tofloat32 dtstofloat32 x264 goom visual panoramix rotate noise grain scene kate flac lua chorus_flanger freetype],[-lm])
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])
AC_CHECK_LIB(m,pow,[
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  VLC_ADD_LIBS([avcodec avformat access_avio swscale postproc i420_rgb faad twolame equalizer spatializer param_eq libvlccore freetype mod mpc dmo quicktime realvideo qt4],[-lm])
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])
AC_CHECK_LIB(m,sqrt,[
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  VLC_ADD_LIBS([compressor headphone_channel_mixer normvol audiobargraph_a speex mono colorthres extract ball],[-lm])
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])
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AC_CHECK_LIB(m,ceil,[
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  VLC_ADD_LIBS([access_imem hotkeys mosaic],[-lm])
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])
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AC_CHECK_LIB(m,exp,[
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  VLC_ADD_LIBS([gaussianblur],[-lm])
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])
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AC_CHECK_LIB(m,round,[
  VLC_ADD_LIBS([dbus],[-lm])
])
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AC_CHECK_LIB(m,sqrtf,[
  VLC_ADD_LIBS([x264],[-lm])
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])
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fi # end "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"
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AC_CHECK_LIB(m,lrintf, [
  AC_DEFINE(HAVE_LRINTF, 1, [Define to 1 if you have the lrintf function])
  VLC_ADD_LIBS([skins2],[-lm])
])

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dnl Check for dynamic plugins
ac_cv_have_plugins=no

# Win32 style
if test "${ac_cv_have_plugins}" = "no"; then
712
  if test "${SYS}" = "mingw32" ; then
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    AC_CHECK_LIB(kernel32, main,
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     [VLC_ADD_LIBS([libvlccore],[-lkernel32])
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      AC_DEFINE(HAVE_DL_WINDOWS, 1, [Define if you have Windows' LoadLibrary])
      ac_cv_have_plugins=yes])
  fi
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fi

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# WinCE style
if test "${ac_cv_have_plugins}" = "no"; then
  if test "${SYS}" = "mingwce"; then
    AC_DEFINE(HAVE_DL_WINDOWS, 1, [Define if you have Windows' LoadLibrary])
    ac_cv_have_plugins=yes
  fi
fi

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# Only test for dlopen() if the others didn't work
729
LIBDL=""
730
if test "${ac_cv_have_plugins}" = "no" -o "${SYS}" = "darwin"; then
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  AC_CHECK_HEADERS(dlfcn.h sys/dl.h)
  ac_cv_my_have_dlopen=no
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  AC_CHECK_FUNC(dlopen, [
    ac_cv_my_have_dlopen=yes
  ], [
    AC_CHECK_LIB(dl, dlopen, [
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      ac_cv_my_have_dlopen=yes
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      LIBDL="-ldl"
    ], [
      AC_CHECK_LIB(svld, dlopen, [
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        ac_cv_my_have_dlopen=yes
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        LIBDL="-lsvld"
      ])
    ])
  ])
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  if test "${ac_cv_my_have_dlopen}" = "yes"; then
    AC_DEFINE(HAVE_DL_DLOPEN, 1, [Define if you have the dlopen API])
    ac_cv_have_plugins=yes
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    VLC_ADD_LIBS([libvlccore realvideo lua],[$LIBDL])
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  fi
fi
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AC_SUBST(LIBDL)
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if test "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"; then
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  dnl Check for pthreads - borrowed from XMMS
  THREAD_LIB=error
  if test "${THREAD_LIB}" = "error"; then
    AC_CHECK_LIB(pthread,main,THREAD_LIB="-lpthread")
  fi
  if test "${THREAD_LIB}" = "error"; then
    AC_CHECK_LIB(pthreads,main,THREAD_LIB="-lpthreads")
  fi
  if test "${THREAD_LIB}" = "error"; then
    AC_CHECK_LIB(c_r,main,THREAD_LIB="-lc_r")
  fi
  if test "${THREAD_LIB}" = "error"; then
    AC_CHECK_FUNCS(pthread_mutex_lock)
    THREAD_LIB=""
  fi
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771
  VLC_ADD_LIBS([libvlccore libvlc vlc plugin],[${THREAD_LIB}])
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  AC_CHECK_LIB(rt, clock_nanosleep, [
    VLC_ADD_LIBS([libvlccore],[-lrt])
    AC_DEFINE(HAVE_CLOCK_NANOSLEEP, 1, [Define to 1 if you have clock_nanosleep.])
  ], [
    dnl HP/UX port
    AC_CHECK_LIB(rt,sem_init, [VLC_ADD_LIBS([libvlccore],[-lrt])])
  ])
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  have_nanosleep=false
  AC_CHECK_FUNCS(nanosleep,have_nanosleep=:,[
    AC_CHECK_LIB(rt,nanosleep,
      [VLC_ADD_LIBS([libvlccore],[-lrt]) have_nanosleep=:],
      [AC_CHECK_LIB(posix4,nanosleep,
          [VLC_ADD_LIBS([libvlccore],[-lposix4]) have_nanosleep=:])]
    )
  ])
  if ${have_nanosleep}; then
    AC_DEFINE(HAVE_NANOSLEEP, 1, [Define if nanosleep is available.])
  fi
792
fi # end "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"
793

794
dnl Check for misc headers
795
AC_MSG_CHECKING(for strncasecmp in strings.h)
796
AC_EGREP_HEADER(strncasecmp,strings.h,[
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  AC_MSG_RESULT(yes)
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  AC_DEFINE(STRNCASECMP_IN_STRINGS_H, 1,
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            Define if <strings.h> defines strncasecmp.)],[
  AC_MSG_RESULT(no)])
801

802
dnl Check for headers
803
AC_CHECK_HEADERS([search.h])
804
AC_CHECK_HEADERS(getopt.h strings.h locale.h xlocale.h)
805
AC_CHECK_HEADERS(fcntl.h sys/time.h sys/ioctl.h sys/stat.h)
806
AC_CHECK_HEADERS([arpa/inet.h netinet/in.h netinet/udplite.h sys/eventfd.h])
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AC_CHECK_HEADERS([net/if.h], [], [],
  [
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    #include <sys/types.h>
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    #include <sys/socket.h>
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  ])
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AC_CHECK_HEADERS([sys/mount.h], [], [],
  [
    #include <sys/param.h>
  ])
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817
if test "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"; then
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  AC_CHECK_HEADERS(machine/param.h sys/shm.h)
  AC_CHECK_HEADERS([linux/version.h linux/dccp.h scsi/scsi.h linux/magic.h])
  AC_CHECK_HEADERS(syslog.h)
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fi # end "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"
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823
dnl LP64 and LLP64 architectures had better define ssize_t by themselves...
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AH_TEMPLATE(ssize_t, [Define to `int' if <stddef.h> does not define.])
AC_CHECK_TYPE(ssize_t,, [
  AC_DEFINE(ssize_t, int)
])

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dnl Check for poll
830
AC_SEARCH_LIBS(poll, [poll], [AC_DEFINE(HAVE_POLL, 1, [Define to 1 if the OS is usabl... err, has poll().])], [
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if test ${SYS} != "mingw32" -a ${SYS} != "mingwce"
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then
    AC_MSG_WARN([Your platform does not support poll(). VLC has it's own poll() implementation, but it is only intended to be used on Windows. VLC might crash or be insecure when you see this message. Either switch to an OS with a proper poll() implementation, or implement one for your OS in VLC])
fi
])
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837
dnl Mac OS X and other OSes don't have declaration for nanosleep
838
if test "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"; then
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  AC_MSG_CHECKING(for nanosleep in time.h)
  AC_EGREP_HEADER(nanosleep,time.h,[
    AC_MSG_RESULT(yes)
    AC_DEFINE(HAVE_DECL_NANOSLEEP, 1,
              Define if <time.h> defines nanosleep.)
  ],[
    AC_MSG_RESULT(no)
  ])
847
fi # end "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"
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dnl Make sure we have timespecs
850
AC_MSG_CHECKING(for timespec in sys/time.h)
851
AC_EGREP_HEADER(timespec,sys/time.h,[
852
  AC_MSG_RESULT(yes)
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  AC_DEFINE(HAVE_STRUCT_TIMESPEC, 1,
            Define if <sys/time.h> defines struct timespec.)
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],[
  AC_MSG_RESULT(no)
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])
858

859
dnl Check for threads library
860
if test "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"; then
861
  AC_CHECK_HEADERS(pthread.h)
862
fi # end "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"
863

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dnl It seems that autoconf detects pkg-config only during the first
dnl PKG_CHECK_MODULES from configure.ac - which makes sense. But in our case,
dnl it is nested within a conditional block, so it was not working right.
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dnl Make PKG_CONFIG_PATH precious so that it appears in the help and get saved
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AC_ARG_VAR(PKG_CONFIG_PATH,
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       [Paths where to find .pc not at the default location])
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PKG_PROG_PKG_CONFIG()

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dnl On some OS we need static linking 
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AS_IF([test -n "${PKG_CONFIG}" ],[
    AS_IF([test "${SYS}" = "mingw32" -o "${SYS}" = "mingwce" -o "${SYS}" = "darwin" ],[
        PKG_CONFIG="${PKG_CONFIG} --static"
    ])
])
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dnl
dnl Check for zlib.h and -lz along with system -lminizip if available
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dnl
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AC_CHECK_HEADERS(zlib.h, [ have_zlib=yes ], [ have_zlib=no ])
AM_CONDITIONAL(HAVE_ZLIB, [ test "${have_zlib}" = "yes" ])
if test "${have_zlib}" = "yes"
then
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  VLC_ADD_LIBS([access_http mp4 skins2 sap mkv unzip zip],[-lz])
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  PKG_CHECK_MODULES([MINIZIP], [minizip] , [ have_minizip=yes ], [
    AC_CHECK_HEADERS([unzip.h], [ 
      have_minizip=yes
      MINIZIP_LIBS="-lminizip -lz"
    ], [
      have_minizip=no
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      MINIZIP_CFLAGS="-I\\\${top_srcdir}/libs/unzip"
      MINIZIP_LIBS="\\\${top_builddir}/libs/unzip/libunzip.la"
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    ])
  ])
  VLC_ADD_CPPFLAGS([skins2],[$MINIZIP_CFLAGS])
  VLC_ADD_CFLAGS([zip],[$MINIZIP_CFLAGS])
  VLC_ADD_LIBS([skins2 zip],[$MINIZIP_LIBS])
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  VLC_ADD_PLUGIN([unzip zip])
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fi
903
AM_CONDITIONAL(HAVE_MINIZIP, [ test "${have_minizip}" = "yes" ])
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dnl Manual switch for UTF-8
AC_ARG_ENABLE(non-utf8,
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  [AS_HELP_STRING([--enable-non-utf8],
    [support legacy non-UTF-8 systems (default disabled)])],, [
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  AS_IF([test "${SYS}" = "mingw32" -o "${SYS}" = "mingwce"], [
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    enable_non_utf8="no"
  ])
])
AS_IF([test "${enable_non_utf8}" != "no"], [
  AC_DEFINE([ASSUME_UTF8], [1],
            [Define to 1 if the operating system uses UTF-8 internally])
])


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dnl Check for dbus
AC_ARG_ENABLE(dbus,
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  [AS_HELP_STRING([--enable-dbus],
    [compile D-Bus message bus support (default enabled)])])
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case "${SYS}" in
    linux*|*bsd*)
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if test "${enable_dbus}" != "no" -a "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"
927
then
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  dnl api stable dbus
  PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0.0,
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    [ AC_DEFINE( HAVE_DBUS, 1, [Define if you have the D-BUS library] )
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      VLC_ADD_LIBS([libvlccore],[$DBUS_LIBS])
      VLC_ADD_CFLAGS([libvlccore],[$DBUS_CFLAGS])
933
      dnl Check for dbus control interface
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        AC_ARG_ENABLE(dbus-control,
          [AS_HELP_STRING([--disable-dbus-control],
            [D-Bus control interface (default enabled)])])
937
        if test "${enable_dbus_control}" != "no"
938
        then
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          VLC_ADD_PLUGIN([dbus])
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          VLC_ADD_LIBS([dbus],[$DBUS_LIBS])
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          VLC_ADD_CFLAGS([dbus],[$DBUS_CFLAGS])
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        fi
      dnl Check for Telepathy
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        AC_ARG_ENABLE(telepathy,
          AS_HELP_STRING([--enable-telepathy],[Telepathy Presence plugin through DBus(default enabled)]))
946
        if test "${enable_telepathy}" != "no"; then
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          VLC_ADD_PLUGIN([telepathy])
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          VLC_ADD_LIBS([telepathy],[$DBUS_LIBS])
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          VLC_ADD_CFLAGS([telepathy],[$DBUS_CFLAGS])
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        fi
        dnl Power Management Inhibiter
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        VLC_ADD_PLUGIN([inhibit])
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        VLC_ADD_LIBS([inhibit],[$DBUS_LIBS])
        VLC_ADD_CFLAGS([inhibit],[$DBUS_CFLAGS])
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    ],
    [AC_MSG_ERROR([Couldn't find DBus >= 1.0.0, install libdbus-dev ?])]
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  )
fi
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;;
esac
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962
dnl Check for ntohl, etc.
963
AC_CACHE_CHECK([for ntohl in sys/param.h],
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    [ac_cv_c_ntohl_sys_param_h],
    [CFLAGS="${CFLAGS_save} -Wall -Werror"
     AC_TRY_COMPILE([#include <sys/param.h>],
967
        [int meuh; ntohl(meuh);],
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        ac_cv_c_ntohl_sys_param_h=yes, ac_cv_c_ntohl_sys_param_h=no)])
969
if test "${ac_cv_c_ntohl_sys_param_h}" != "no"; then
970
    AC_DEFINE(NTOHL_IN_SYS_PARAM_H, 1, Define if <sys/param.h> defines ntohl.)
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fi
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EXTEND_HELP_STRING([Optimization options:])
VLC_RESTORE_FLAGS
dnl
dnl  Compiler warnings
dnl
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RDC_PROG_CC_WFLAGS([all extra sign-compare undef pointer-arith bad-function-cast write-strings missing-prototypes volatile-register-var error-implicit-function-declaration])
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RDC_PROG_CC_FLAGS([-pipe])
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AC_LANG_PUSH([C++])
RDC_PROG_CXX_WFLAGS([all extra sign-compare undef pointer-arith volatile-register-var])
AC_LANG_POP([C++])
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dnl
dnl  Debugging mode
dnl
AC_ARG_ENABLE(debug,
  [AS_HELP_STRING([--enable-debug],
    [build with run-time assertions and debug symbols (default disabled)])],,
  [enable_debug="no"])
AH_TEMPLATE(NDEBUG,
            [Define to 1 if debug code should NOT be compiled])
AS_IF([test "${enable_debug}" != "no"], [
  AC_CHECK_HEADERS([valgrind/valgrind.h])
  CFLAGS="${CFLAGS} -g"
  CXXFLAGS="${CXXFLAGS} -g"
  OBJCFLAGS="${OBJCFLAGS} -g"
  LDFLAGS="${LDFLAGS} -g"
], [
  AC_DEFINE(NDEBUG)
])

dnl
dnl  Profiling
dnl
AC_ARG_ENABLE(gprof,
  [AS_HELP_STRING([--enable-gprof],[profile with gprof (default disabled)])],,
  [enable_gprof="no"])
AS_IF([test "${enable_gprof}" != "no"], [
  CFLAGS="${CFLAGS} -pg"
  CXXFLAGS="${CXXFLAGS} -pg"
  OBJCFLAGS="${OBJCFLAGS} -pg"
  LDFLAGS="${LDFLAGS} -pg"
])

AC_ARG_ENABLE(cprof,
  [AS_HELP_STRING([--enable-cprof],[profile with cprof (default disabled)])],,
  [enable_cprof="no"])
AS_IF([test "${enable_gprof}" != "no"], [
  CFLAGS="${CFLAGS} -finstrument-functions"
  CXXFLAGS="${CXXFLAGS} -finstrument-functions"
  OBJCFLAGS="${OBJCFLAGS} -finstrument-functions"
  LDFLAGS="${LDFLAGS} -finstrument-functions"
])

dnl
dnl  Test coverage
dnl
AC_ARG_ENABLE(coverage,
  [AS_HELP_STRING([--enable-coverage],
    [build for test coverage (default disabled)])],,
  [enable_coverage="no"])
AS_IF([test "${enable_coverage}" != "no"], [
  CFLAGS="-fprofile-arcs -ftest-coverage ${CFLAGS}"
  CXXFLAGS="-fprofile-arcs -ftest-coverage ${CXXFLAGS}"
  LDFLAGS="-lgcov ${LDFLAGS}"
])

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VLC_SAVE_FLAGS

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AS_IF([test "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"], [
  AC_CACHE_CHECK([if $CC accepts -fvisibility=hidden],
                 [ac_cv_c_visibility_hidden], [
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    CFLAGS="${CFLAGS_save} -fvisibility=hidden"
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    AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
      ac_cv_c_visibility_hidden=yes
    ], [
      ac_cv_c_visibility_hidden=no
    ])
  ])
  AS_IF([test "${ac_cv_c_visibility_hidden}" != "no"], [
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    VLC_RESTORE_FLAGS
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    CFLAGS="${CFLAGS} -fvisibility=hidden"
    CXXFLAGS="${CXXFLAGS} -fvisibility=hidden"
    OBJCFLAGS="${OBJCFLAGS} -fvisibility=hidden"
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    VLC_SAVE_FLAGS
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  ])
])

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dnl
dnl  Enable/disable optimizations
dnl
AC_ARG_ENABLE(optimizations,
  [AS_HELP_STRING([--disable-optimizations],
    [disable compiler optimizations (default enabled)])],,
  [enable_optimizations="yes"])
AS_IF([test "${enable_optimizations}" != "no"], [
  enable_optimizations="speed"
])

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dnl Check for various optimization flags
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AS_IF([test "${enable_optimizations}" != "no"], [

  C_O=""
  dnl -O4 and -O3 only in production builds
  AS_IF([test "{enable_debug}" = "no"], [
    AC_CACHE_CHECK([if $CC accepts -O4], [ac_cv_c_o4], [
      CFLAGS="${CFLAGS_save} -O4"
      AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
        ac_cv_c_o4=yes
      ], [
        ac_cv_c_o4=no
      ])
    ])
    AS_IF([test "${ac_cv_c_o4}" != "no"], [
      C_O="-O4"
    ], [
      AC_CACHE_CHECK([if $CC accepts -O3],  [ac_cv_c_o3], [
        CFLAGS="${CFLAGS_save} -O3"
        AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
          ac_cv_c_o3=yes
        ], [
          ac_cv_c_o3=no
        ])
      ])
      AS_IF([test "${ac_cv_c_o3}" != "no"], [
        C_O="-O3"
      ])
    ])
  ])
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  dnl -O2 and -O in both production and debug builds
  AS_IF([test "x$C_O" = "x"], [
    AC_CACHE_CHECK([if \$CC accepts -O2], [ac_cv_c_o2], [
      CFLAGS="${CFLAGS_save} -O2"
      AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
        ac_cv_c_o2=yes
      ], [
        ac_cv_c_o2=no
      ])
    ])
    AS_IF([test "${ac_cv_c_o2}" != "no"], [
      C_O="-O2"
    ], [
      AC_CACHE_CHECK([if \$CC accepts -O], [ac_cv_c_o], [
        CFLAGS="${CFLAGS_save} -O"
        AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
          ac_cv_c_o=yes
        ], [
          ac_cv_c_o=no
        ])
      ])
      AS_IF([test "${ac_cv_c_o}" != "no"], [
        C_O="-O"
      ])
    ])
  ])
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  VLC_RESTORE_FLAGS
  CFLAGS="${CFLAGS} ${C_O}"
  CXXFLAGS="${CXXFLAGS} ${C_O}"
  OBJCFLAGS="${OBJCFLAGS} ${C_O}"
  VLC_SAVE_FLAGS

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

  AS_IF([test "$enable_debug" = "no"], [
    dnl Check for -fomit-frame-pointer
    AC_CACHE_CHECK([if $CC accepts -fomit-frame-pointer],
      [ac_cv_c_omit_frame_pointer], [
      CFLAGS="${CFLAGS_save} -fomit-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 "${ac_cv_c_omit_frame_pointer}" != "no"], [
      VLC_RESTORE_FLAGS
      AS_IF([test "${SYS}" != "darwin"], [
        CFLAGS="${CFLAGS} -fomit-frame-pointer"
        CXXFLAGS="${CXXFLAGS} -fomit-frame-pointer"
      ], [
        dnl On darwin we explicitely disable it.
        CFLAGS="${CFLAGS} -fno-omit-frame-pointer"
        CXXFLAGS="${CXXFLAGS} -fno-omit-frame-pointer"
        OBJCFLAGS="${OBJCFLAGS} -fno-omit-frame-pointer"
      ])
      VLC_SAVE_FLAGS
    ])
  ])
])
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Sam Hocevar's avatar
Sam Hocevar committed
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dnl Check for Darwin plugin linking flags
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AS_IF([test "${SYS}" = "darwin"], [
  AC_CACHE_CHECK([if $CC accepts -bundle -undefined error],
    [ac_cv_ld_darwin], [
    CFLAGS="${CFLAGS_save} -bundle -undefined error"
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], [
      ac_cv_ld_darwin=yes
    ], [
      ac_cv_ld_darwin=no
    ])
  ])
  AS_IF([test "${ac_cv_ld_darwin}" != "no"], [
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    VLC_ADD_LDFLAGS([plugin],[-bundle -undefined error])
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  ])
])
Sam Hocevar's avatar
Sam Hocevar committed
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dnl Checks for __attribute__(aligned()) directive
AC_CACHE_CHECK([__attribute__ ((aligned ())) support],
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    [ac_cv_c_attribute_aligned],
    [ac_cv_c_attribute_aligned=0
        CFLAGS="${CFLAGS_save} -Werror"
    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
        CFLAGS="${CFLAGS_save}"])
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if test "${ac_cv_c_attribute_aligned}" != "0"; then
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    AC_DEFINE_UNQUOTED([ATTRIBUTE_ALIGNED_MAX],
        [${ac_cv_c_attribute_aligned}],[Maximum supported data alignment])
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fi

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

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

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

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dnl
dnl  default modules
dnl
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ALIASES="${ALIASES} cvlc rvlc"
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dnl
dnl Some plugins aren't useful on some platforms
dnl
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if test "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"; then
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    VLC_ADD_PLUGIN([dynamicoverlay access_shm])
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elif test "${SYS}" != "mingwce"; then
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    VLC_ADD_PLUGIN([access_smb dmo globalhotkeys])
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    VLC_ADD_LIBS([dmo],[-lole32 -luuid])
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fi
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if test "${SYS}" = "darwin"; then
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    VLC_ADD_LDFLAGS([quartztext],[-Wl,-framework,ApplicationServices])
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fi
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dnl
dnl  Accelerated modules
dnl
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dnl  Check for fully working MMX intrinsics
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dnl  We need support for -mmmx, we need <mmintrin.h>, and we also need a
dnl  working compiler (http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23963)
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AC_ARG_ENABLE(mmx,
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  [AS_HELP_STRING([--disable-mmx],
    [disable MMX optimizations (default auto)])],,[
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  case "${host_cpu}" in
    i?86|x86_64)
      enable_mmx="yes"
      ;;
    *)
      enable_mmx="no"
      ;;
  esac
])
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have_mmx="no"
have_mmxext="no"
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AS_IF([test "${enable_mmx}" != "no"], [
  ARCH="${ARCH} mmx"

  AC_CACHE_CHECK([if $CC groks MMX intrinsics],
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    [ac_cv_c_mmx_intrinsics],
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    [CFLAGS="${CFLAGS_save} -O -mmmx"
     AC_TRY_COMPILE([#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])])
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  AS_IF([test "${ac_cv_c_mmx_intrinsics}" != "no"], [
    AC_DEFINE(HAVE_MMX_INTRINSICS, 1,
              [Define to 1 if MMX intrinsics are available.])
  ])

  AC_CACHE_CHECK([if $CC groks MMX inline assembly],
    [ac_cv_mmx_inline],
    [CFLAGS="${CFLAGS_save}"
     AC_TRY_COMPILE(,[void *p;asm volatile("packuswb %%mm1,%%mm2"::"r"(p));],
                    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.])
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    have_mmx="yes"
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  ])

  AC_CACHE_CHECK([if $CC groks MMX EXT inline assembly],
    [ac_cv_mmxext_inline],
    [CFLAGS="${CFLAGS_save}"
     AC_TRY_COMPILE(,[void *p;asm volatile("maskmovq %%mm1,%%mm2"::"r"(p));],
                    ac_cv_mmxext_inline=yes, ac_cv_mmxext_inline=no)])
  AS_IF([test "${ac_cv_mmxext_inline}" != "no"], [
    AC_DEFINE(CAN_COMPILE_MMXEXT, 1,
              [Define to 1 if MMX EXT inline assembly is available.])
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    have_mmxext="yes"
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  ])
])
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AM_CONDITIONAL([HAVE_MMX], [test "${have_mmx}" = "yes"])
AM_CONDITIONAL([HAVE_MMXEXT], [test "${have_mmxext}" = "yes"])
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dnl  Check for fully workin SSE2 intrinsics
dnl  We need support for -mmmx, we need <emmintrin.h>, and we also need a
dnl  working compiler (http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23963)
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AC_ARG_ENABLE(sse,
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  [AS_HELP_STRING([--disable-sse],
    [disable SSE (1-4) optimizations (default auto)])],, [
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  case "${host_cpu}" in
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    i?86|x86_64)
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      enable_sse=yes
      ;;
    *)
      enable_sse=no
      ;;
  esac
])
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have_sse2="no"
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AS_IF([test "${enable_sse}" != "no"], [
  ARCH="${ARCH} sse sse2"

  AC_CACHE_CHECK([if $CC groks SSE2 intrinsics],