#!/bin/sh
#
# libvalhalla configure script - (c) 2009 Mathieu Schroeter
#
#  Fully inspired from :
#     libdlna configure script - (c) 2007-2008 Benjamin Zores
#   libplayer configure script - (c) 2006 Benjamin Zores
#      FFmpeg configure script, thanks to Fabrice Bellard
#

# make sure we are running under a compatible shell
unset foo
(: ${foo%%bar}) 2>/dev/null && ! (: ${foo?}) 2>/dev/null
if test "$?" != 0; then
    if test "x$VALHALLA_CONFIGURE_EXEC" = x; then
        VALHALLA_CONFIGURE_EXEC=1
        export VALHALLA_CONFIGURE_EXEC
        exec bash "$0" "$@"
        exec ksh "$0" "$@"
        exec /usr/xpg4/bin/sh "$0" "$@"
    fi
    echo "No compatible shell script interpreter found."
    exit 1
fi

show_help(){
  echo "Usage: configure [options]"
  echo "Options: [defaults in brackets after descriptions]"
  echo
  echo "Standard options:"
  echo "  --help                      print this message"
  echo "  --log[=FILE|yes|no]         log tests and output to FILE [config.log]"
  echo "  --prefix=PREFIX             install in PREFIX [$PREFIX]"
  echo "  --bindir=DIR                install bins in DIR [PREFIX/bin]"
  echo "  --libdir=DIR                install libs in DIR [PREFIX/lib]"
  echo "  --includedir=DIR            install includes in DIR [PREFIX/include]"
  echo "  --docdir=DIR                install docs in DIR [PREFIX/share/doc]"
  echo "  --enable-static             build static libraries [default=yes]"
  echo "  --disable-static            do not build static libraries [default=no]"
  echo "  --enable-shared             build shared libraries [default=yes]"
  echo "  --disable-shared            do not build shared libraries [default=no]"
  echo ""
  echo "Grabbers options:"
  echo "  --enable-grabbers           build all grabbers (dummy excepted) [default=no]"
  echo "  --enable-grabber-dummy      build dummy grabber (for debugging) [default=no]"
  echo "  --enable-grabber-allocine   build Allocine grabber [default=yes]"
  echo "  --enable-grabber-amazon     build Amazon grabber [default=yes]"
  echo "  --enable-grabber-exif       build EXIF grabber [default=yes]"
  echo "  --enable-grabber-ffmpeg     build FFmpeg grabber [default=no]"
  echo "  --enable-grabber-imdb       build ImDB grabber [default=yes]"
  echo "  --enable-grabber-lastfm     build Last.fm grabber [default=yes]"
  echo "  --enable-grabber-local      build localfiles grabber [default=yes]"
  echo "  --enable-grabber-lyricsfly  build LyricsFly.com grabber [default=no]"
  echo "  --enable-grabber-lyricwiki  build LyricWiki.org grabber [default=yes]"
  echo "  --enable-grabber-nfo        build NFO grabber [default=yes]"
  echo "  --enable-grabber-tvdb       build TheTVDB.com grabber [default=yes]"
  echo "  --enable-grabber-tmdb       build TheMovieDB.org grabber [default=yes]"
  echo "  --enable-grabber-tvrage     build TVRage.com grabber [default=yes]"
  echo ""
  echo "Search paths:"
  echo "  --with-lavf=PATH            specify prefix directory for libavformat package."
  echo "                              Equivalent to --with-lavf-inc=PATH/include"
  echo "                                       plus --with-lavf-lib=PATH/lib"
  echo "  --with-lavf-inc=PATH        specify directory for libavformat include files"
  echo "  --with-lavf-lib=PATH        specify directory for libavformat library"
  echo "  --with-lavc=PATH            specify prefix directory for libavcodec package."
  echo "                              Equivalent to --with-lavc-inc=PATH/include"
  echo "                                       plus --with-lavc-lib=PATH/lib"
  echo "  --with-lavc-inc=PATH        specify directory for libavcodec include files"
  echo "  --with-lavc-lib=PATH        specify directory for libavcodec library"
  echo "  --with-lavu=PATH            specify prefix directory for libavutil package."
  echo "                              Equivalent to --with-lavu-inc=PATH/include"
  echo "                                       plus --with-lavu-lib=PATH/lib"
  echo "  --with-lavu-inc=PATH        specify directory for libavutil include files"
  echo "  --with-lavu-lib=PATH        specify directory for libavutil library"
  echo "  --with-sqlite3-dir=DIR      check for SQLite installed in DIR"
  echo "  --with-curl-dir=DIR         check for libcurl installed in DIR"
  echo "  --with-xml2-dir=DIR         check for libxml-2.0 installed in DIR"
  echo "  --with-exif-dir=DIR         check for libexif installed in DIR"
  echo "  --with-nfo-dir=DIR          check for libnfo installed in DIR"
  echo "  --with-gcrypt-dir=DIR       check for libgcrypt installed in DIR"
  echo ""
  echo "Advanced options (experts only):"
  echo "  --arch=ARCH                 force architecture"
  echo "  --cpu=CPU                   force CPU optimization"
  echo "  --disable-debug             disable debugging symbols"
  echo "  --enable-debug=LEVEL        set the debug level [$debuglevel]"
  echo "  --disable-strip             disable stripping of executables at installation"
  echo "  --disable-optimize          disable compiler optimization"
  echo "  --enable-small              optimize for size instead of speed"
  echo "  --cross-prefix=PREFIX       use PREFIX for compilation tools [$cross_prefix]"
  echo "  --cross-compile             assume a cross-compiler is used"
  echo "  --enable-pic                build position-independent code"
  echo ""
  echo "Miscellaneous:"
  echo "  --disable-logcolor          disable colorful console output on terminals"
  echo "  --enable-doc                build Doxygen documentation"
  exit 1
}

log(){
    echo "$@" >>$logfile
}

log_file(){
    log BEGIN $1
    cat -n $1 >>$logfile
    log END $1
}

echolog(){
    log "$@"
    echo "$@"
}

echologn(){
    log "$@"
    echo -n "$@"
}

clean(){
    rm -f $TMPC $TMPO $TMPE $TMPS
}

die(){
    echolog "$@"
    if enabled logging; then
      echo "See file \"$logfile\" produced by configure for more details."
    else
      echo "Rerun configure with logging enabled (do not use --log=no) for more details."
    fi
    clean
    exit 1
}

set_all(){
    value=$1
    shift
    for var in $*; do
        eval $var=$value
    done
}

enable(){
    set_all yes $*
}

enabled(){
    eval test "x\$$1" = "xyes"
}

disabled(){
    eval test "x\$$1" = "xno"
}

flags_saved(){
    (: ${SAVE_CFLAGS?}) 2>/dev/null
}

save_flags(){
    flags_saved && return
    SAVE_CFLAGS="$CFLAGS"
    SAVE_CPPFLAGS="$CPPFLAGS"
    SAVE_HOST_CFLAGS="$HOST_CFLAGS"
    SAVE_LDFLAGS="$LDFLAGS"
    SAVE_extralibs="$extralibs"
}

restore_flags(){
    CFLAGS="$SAVE_CFLAGS"
    CPPFLAGS="$SAVE_CPPFLAGS"
    HOST_CFLAGS="$SAVE_HOST_CFLAGS"
    LDFLAGS="$SAVE_LDFLAGS"
    extralibs="$SAVE_extralibs"
    unset SAVE_CFLAGS
    unset SAVE_CPPFLAGS
    unset SAVE_HOST_CFLAGS
    unset SAVE_LDFLAGS
    unset SAVE_extralibs
}

temp_cflags(){
    temp_append CFLAGS "$@"
}

temp_cppflags(){
    temp_append CPPFLAGS "$@"
}

temp_host_cflags(){
    temp_append HOST_CFLAGS "$@"
}

temp_ldflags(){
    temp_append LDFLAGS "$@"
}

temp_extralibs(){
    temp_append extralibs "$@"
}

temp_append(){
    local var
    var=$1
    shift
    save_flags
    append_var "$var" "$@"
}

append_var(){
    local var f
    var=$1
    shift
    for f in $@; do
      if eval echo \$$var | grep -qv -e "$f"; then
        test -n "$(eval echo \$$var)" && eval "$var=\"\$$var $f\"" || eval "$var=\"$f\""
      fi
    done
}

append(){
    local var
    var=$1
    shift
    flags_saved && append_var "SAVE_$var" "$@"
    append_var "$var" "$@"
}

add_cflags(){
    append CFLAGS "$@"
}

add_cppflags(){
    append CPPFLAGS "$@"
}

add_ldflags(){
    append LDFLAGS "$@"
}

add_extralibs(){
    append extralibs "$@"
}

add_pkgconfig_requires(){
    append pkgconfig_requires "$@"
}

check_cmd(){
    log "$@"
    "$@" >>$logfile 2>&1
}

check_cc(){
    log check_cc "$@"
    cat >$TMPC
    log_file $TMPC
    check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
}

check_host_cc(){
    log check_host_cc "$@"
    cat >$TMPC
    log_file $TMPC
    check_cmd $host_cc $HOST_CFLAGS "$@" -c -o $TMPO $TMPC
}

check_cpp(){
    log check_cpp "$@"
    cat >$TMPC
    log_file $TMPC
    check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
}

check_ld(){
    log check_ld "$@"
    check_cc || return
    check_cmd $cc $LDFLAGS "$@" -o $TMPE $TMPO $extralibs
}

check_host_ld(){
    log check_host_ld "$@"
    check_host_cc || return
    check_cmd $host_cc $HOST_LDFLAGS "$@" -o $TMPE $TMPO
}

check_exec(){
    check_ld "$@" && { enabled cross_compile || $TMPE >>$logfile 2>&1; }
}

check_cppflags(){
    log check_cppflags "$@"
    check_cc "$@" <<EOF && append CPPFLAGS "$@"
int x;
EOF
}

check_cflags(){
    log check_cflags "$@"
    check_cc "$@" <<EOF && add_cflags "$@"
int x;
EOF
}

check_ldflags(){
    log check_ldflags "$@"
    check_ld "$@" <<EOF && add_ldflags "$@"
int main(){
    return 0;
}
EOF
}

check_header(){
    local header
    log check_header "$@"
    header=$1
    shift
    check_cpp "$@" <<EOF
#include <$header>
int x;
EOF
}

check_func(){
    local func
    log check_func "$@"
    func=$1
    shift
    check_ld "$@" <<EOF
extern int $func();
int main(){
    $func();
    return 0;
}
EOF
}

check_lib(){
    local header func err
    log check_lib "$@"
    header="$1"
    func="$2"
    shift 2
    temp_extralibs "$@"
    check_header $header && check_func $func && add_extralibs "$@"
    err=$?
    restore_flags
    return $err
}

check_libconfig(){
    local config func ccflags clibs err
    log check_libconfig "$@"
    config="$1"
    func="$2"
    ccflags="${3:---cflags}"
    clibs="${4:---libs}"
    err=1
    if `which "$config" 1>/dev/null 2>&1`; then
      cflags=`$config $ccflags`
      [ -n "$cflags" ] && check_cflags "$cflags"
      libs=`$config $clibs`
      if [ -n "$libs" ]; then
        temp_extralibs "$libs"
        check_func $func && add_extralibs "$libs"
        err=$?
        restore_flags
      fi
    fi
    return $err
}

check_lib_version() {
    local min_ver toobig_ver
    min_ver="$2"
    toobig_ver="$3"
    check_cmd pkg-config --print-errors --exists "$1 >= $min_ver $1 < $toobig_ver" 2>>$logfile
    err=$?
    return $err
}

append_config(){
    echo "$@" >> $CONFIGFILE
}

pkgconfig_generate(){
    name=$1
    comment=$2
    version=$3
    libs=$4
    libs_private=$5
    cflags=$6
    requires=$7
    requires_private=$8

    cat <<EOF >$name.pc
PREFIX=$PREFIX
libdir=$libdir
includedir=$includedir

Name: $name
Description: $comment
Version: $version
Requires: $requires
Requires.private: $requires_private
Conflicts:
Libs: -L\${libdir} $libs
Libs.private: $libs_private
Cflags: -I\${includedir} $cflags
EOF
}

add_pkgconfig_deps() {
    if `which pkg-config 1>/dev/null 2>&1`; then
      add_cflags `pkg-config "$1" --cflags 2>>$logfile`
      add_extralibs `pkg-config "$1" --libs 2>>$logfile`
    fi
}

# set temporary file name
if test ! -z "$TMPDIR" ; then
    TMPDIR1="${TMPDIR}"
elif test ! -z "$TEMPDIR" ; then
    TMPDIR1="${TEMPDIR}"
else
    TMPDIR1="/tmp"
fi

TMPC="${TMPDIR1}/libvalhalla-${RANDOM}-$$-${RANDOM}.c"
TMPO="${TMPDIR1}/libvalhalla-${RANDOM}-$$-${RANDOM}.o"
TMPE="${TMPDIR1}/libvalhalla-${RANDOM}-$$-${RANDOM}"
TMPS="${TMPDIR1}/libvalhalla-${RANDOM}-$$-${RANDOM}.S"

CONFIGFILE="config.mak"

#################################################
#   set default parameters
#################################################
logging="yes"
logfile="config.log"
PREFIX="/usr/local"
bindir='${PREFIX}/bin'
libdir='${PREFIX}/lib'
includedir='${PREFIX}/include'
docdir='${PREFIX}/share/doc'
static="yes"
shared="yes"
cc="gcc"
host_cc="gcc"
ar="ar"
ranlib="ranlib"
make="make"
strip="strip"
arch=`uname -m`
cpu="generic"
optimize="yes"
small="no"
debug="yes"
dostrip="yes"
extralibs=""
installstrip="-s"
cross_compile="no"
pic="no"
INSTALL="install"
VERSION=""
pkgconfig_requires=""
grabber_all="auto"
grabber_dummy="no"
grabber_allocine="auto"
grabber_amazon="auto"
grabber_exif="auto"
grabber_ffmpeg="auto"
grabber_imdb="auto"
grabber_lastfm="auto"
grabber_local="auto"
grabber_lyricsfly="no"
grabber_lyricwiki="auto"
grabber_nfo="auto"
grabber_tmdb="auto"
grabber_tvdb="auto"
grabber_tvrage="auto"
logcolor="yes"
doc="no"

#################################################
#   check options
#################################################
for opt do
  optval="${opt#*=}"
  case "$opt" in
  --log)
  ;;
  --log=*) logging="$optval"
  ;;
  --prefix=*) PREFIX="$optval"; force_prefix=yes
  ;;
  --bindir=*) bindir="$optval"
  ;;
  --libdir=*) libdir="$optval"; force_libdir=yes
  ;;
  --includedir=*) includedir="$optval"
  ;;
  --docdir=*) docdir="$optval"; force_docdir=yes
  ;;
  --enable-static) static="yes"
  ;;
  --disable-static) static="no"
  ;;
  --enable-shared) shared="yes"
  ;;
  --disable-shared) shared="no"
  ;;
  --enable-debug=*) debug="yes"; debuglevel="$optval"
  ;;
  --disable-debug) debug="no"
  ;;
  --enable-strip) dostrip="yes"
  ;;
  --disable-strip) dostrip="no"
  ;;
  --enable-optimize) optimize="yes"
  ;;
  --disable-optimize) optimize="no"
  ;;
  --enable-small) small="yes"
  ;;
  --disable-small) small="no"
  ;;
  --cross-prefix=*) cross_prefix="$optval"
  ;;
  --cross-compile) cross_compile="yes"
  ;;
  --with-lavf=*) lavfdir="$optval";
  ;;
  --with-lavf-inc=*) lavfincdir="$optval";
  ;;
  --with-lavf-lib=*) lavflibdir="$optval";
  ;;
  --with-lavc=*) lavcdir="$optval";
  ;;
  --with-lavc-inc=*) lavcincdir="$optval";
  ;;
  --with-lavc-lib=*) lavclibdir="$optval";
  ;;
  --with-lavu=*) lavudir="$optval";
  ;;
  --with-lavu-inc=*) lavuincdir="$optval";
  ;;
  --with-lavu-lib=*) lavulibdir="$optval";
  ;;
  --with-sqlite3-dir=*) sqlite3dir="$optval";
  ;;
  --with-curl-dir=*) curldir="$optval";
  ;;
  --with-xml2-dir=*) xml2dir="$optval";
  ;;
  --with-exif-dir=*) exifdir="$optval";
  ;;
  --with-nfo-dir=*) nfodir="$optval";
  ;;
  --with-gcrypt-dir=*) gcryptdir="$optval";
  ;;
  --enable-grabbers) grabber_all="yes";
  ;;
  --disable-grabbers) grabber_all="no";
  ;;
  --enable-grabber-dummy) grabber_dummy="yes";
  ;;
  --disable-grabber-dummy) grabber_dummy="no";
  ;;
  --enable-grabber-allocine) grabber_allocine="yes";
  ;;
  --disable-grabber-allocine) grabber_allocine="no";
  ;;
  --enable-grabber-amazon) grabber_amazon="yes";
  ;;
  --disable-grabber-amazon) grabber_amazon="no";
  ;;
  --enable-grabber-exif) grabber_exif="yes";
  ;;
  --disable-grabber-exif) grabber_exif="no";
  ;;
  --enable-grabber-ffmpeg) grabber_ffmpeg="yes";
  ;;
  --disable-grabber-ffmpeg) grabber_ffmpeg="no";
  ;;
  --enable-grabber-imdb) grabber_imdb="yes";
  ;;
  --disable-grabber-imdb) grabber_imdb="no";
  ;;
  --enable-grabber-lastfm) grabber_lastfm="yes";
  ;;
  --disable-grabber-lastfm) grabber_lastfm="no";
  ;;
  --enable-grabber-local) grabber_local="yes";
  ;;
  --disable-grabber-local) grabber_local="no";
  ;;
  --enable-grabber-lyricsfly) grabber_lyricsfly="yes";
  ;;
  --disable-grabber-lyricsfly) grabber_lyricsfly="no";
  ;;
  --enable-grabber-lyricwiki) grabber_lyricwiki="yes";
  ;;
  --disable-grabber-lyricwiki) grabber_lyricwiki="no";
  ;;
  --enable-grabber-nfo) grabber_nfo="yes";
  ;;
  --disable-grabber-nfo) grabber_nfo="no";
  ;;
  --enable-grabber-tmdb) grabber_tmdb="yes";
  ;;
  --disable-grabber-tmdb) grabber_tmdb="no";
  ;;
  --enable-grabber-tvdb) grabber_tvdb="yes";
  ;;
  --disable-grabber-tvdb) grabber_tvdb="no";
  ;;
  --enable-grabber-tvrage) grabber_tvrage="yes";
  ;;
  --disable-grabber-tvrage) grabber_tvrage="no";
  ;;
  --enable-pic) pic="yes";
  ;;
  --disable-pic) pic="no";
  ;;
  --enable-logcolor) logcolor="yes";
  ;;
  --disable-logcolor) logcolor="no";
  ;;
  --enable-doc) doc="yes";
  ;;
  --disable-doc) doc="no";
  ;;
  --help) show_help
  ;;
  *)
  echo "Unknown option \"$opt\"."
  echo "See $0 --help for available options."
  exit 1
  ;;
  esac
done

# Check for conflictual build options
if [ "$shared" = no -a "$static" = no ]; then
  echo "At least one library type must be built."
  echo "Specify --enable-static to build the static libraries or"
  echo "--enable-shared to build the shared libraries as well."
  exit 1
fi

if [ -n "$cross_prefix" ]; then
  cross_compile="yes"
  cc="${cross_prefix}${cc}"
  ar="${cross_prefix}${ar}"
  ranlib="${cross_prefix}${ranlib}"
  strip="${cross_prefix}${strip}"
else
  [ -n "$CC" ] && cc="$CC"
  [ -n "$AR" ] && ar="$AR"
  [ -n "$RANLIB" ] && ranlib="$RANLIB"
  [ -n "$STRIP" ] && strip="$STRIP"
fi
[ -n "$MAKE" ] && make="$MAKE"

[ -n "$HOST_CC" ] && HOST_CC="$HOST_CC"
[ -n "$HOST_CFLAGS" ] && HOST_CFLAGS="$HOST_CFLAGS"
[ -n "$HOST_LDFLAGS" ] && HOST_LDFLAGS="$HOST_LDFLAGS"

#################################################
#   set arch variable and specific cpu flags
#################################################
if enabled cross_compile; then
  arch="`$cc -dumpmachine | sed -e 's,\([^-]*\)-.*,\1,'`"
fi

case "$arch" in
  i386|i486|i586|i686|i86pc|BePC)
    arch="x86_32"
  ;;
  x86_64|amd64)
    arch="x86_32"
    canon_arch="`$cc -dumpmachine | sed -e 's,\([^-]*\)-.*,\1,'`"
    if [ x"$canon_arch" = x"x86_64" -o x"$canon_arch" = x"amd64" ]; then
      if [ -z "`echo $CFLAGS | grep -- -m32`"  ]; then
        arch="x86_64"
      fi
    fi
    spic=$shared
  ;;
# armv4l is a subset of armv5tel
  arm|armv4l|armv5tel)
    arch="armv4l"
  ;;
  alpha)
    arch="alpha"
    spic=$shared
  ;;
  "Power Macintosh"|ppc|ppc64|powerpc)
    arch="powerpc"
  ;;
  mips|mipsel|IP*)
    arch="mips"
    spic=$shared
  ;;
  mips64)
    arch="mips64"
    spic=$shared
  ;;
  sun4u|sparc64)
    arch="sparc64"
    spic=$shared
  ;;
  sparc)
    arch="sparc"
    spic=$shared
  ;;
  sh4)
    arch="sh4"
  ;;
  parisc|parisc64)
    arch="parisc"
    spic=$shared
  ;;
  s390|s390x)
    arch="s390"
  ;;
  m68k)
    arch="m68k"
  ;;
  ia64)
    arch="ia64"
    spic=$shared
  ;;
  bfin)
    arch="bfin"
  ;;
  *)
    arch="unknown"
  ;;
esac

# Add processor-specific flags
if test $cpu != "generic"; then
  case $cpu in
    601|ppc601|PowerPC601)
      add_cflags "-mcpu=601"
    ;;
    603*|ppc603*|PowerPC603*)
      add_cflags "-mcpu=603"
    ;;
    604*|ppc604*|PowerPC604*)
      add_cflags "-mcpu=604"
    ;;
    G3|g3|75*|ppc75*|PowerPC75*)
      add_cflags "-mcpu=750 -mpowerpc-gfxopt"
    ;;
    G4|g4|745*|ppc745*|PowerPC745*)
      add_cflags "-mcpu=7450 -mpowerpc-gfxopt"
    ;;
    74*|ppc74*|PowerPC74*)
      add_cflags "-mcpu=7400 -mpowerpc-gfxopt"
    ;;
    G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
      add_cflags "-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
    ;;
    Cell|CELL|cell)
      add_cflags "-mcpu=cell"
    ;;
    i[3456]86|pentium|pentium-mmx|pentiumpro|pentium[23]|pentium-m|k6|k6-[23]|winchip-c6|winchip2|c3|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|pentium4|pentium4m|prescott|nocona)
      add_cflags "-march=$cpu"
    ;;
    sparc64)
      add_cflags "-mcpu=v9"
    ;;
    arm*|cortex*)
      add_cflags "-mcpu=$cpu"
    ;;
    *)
      die "WARNING: Unknown CPU \"$cpu\", ignored."
    ;;
  esac
fi

enable_pic(){
    enable pic
    add_cppflags -DPIC
    add_cflags   -fPIC
}

enabled spic && enable pic
enabled pic && enable_pic

#################################################
#   create logging file
#################################################
if test "$logging" != no; then
  enabled logging || logfile="$logging"
  echo "# $0 $@" >$logfile
  set >>$logfile
else
  logfile=/dev/null
fi

#################################################
#   compiler sanity check
#################################################
echolog "Checking for compiler available..."
check_exec <<EOF
int main(){
    return 0;
}
EOF
if test "$?" != 0; then
  echo "$cc is unable to create an executable file."
  if test -z "$cross_prefix" -a "$cross_compile" = no; then
    echo "If $cc is a cross-compiler, use the --cross-compile option."
  fi
  die "C compiler test failed."
fi

if test -n "`$cc -v 2>&1 | grep version | grep Apple`"; then
  dylib="yes"
else
  dylib="no"
fi

#################################################
#   check for target specific flags
#################################################
# check for SIMD availability

# mmi only available on mips
if [ "$mmi" = "default" ]; then
  if [ "$arch" = "mips" ]; then
    mmi="yes"
  else
    mmi="no"
  fi
fi

# check if our compiler supports mmi
enabled mmi && check_cc <<EOF || mmi="no"
int main(void) {
    __asm__ ("lq \$2, 0(\$2)");
    return 0;
}
EOF

# test gcc version to see if vector builtins can be used
# currently only used on i386 for MMX builtins
check_cc -msse <<EOF && builtin_vector=yes || builtin_vector=no
#include <xmmintrin.h>
int main(void) {
#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 2)
return 0;
#else
#error no vector builtins
#endif
}
EOF

# test for mm3dnow.h
test "$arch" = "x86_64" && march=k8 || march=athlon
check_cc -march=$march <<EOF && mm3dnow=yes || mm3dnow=no
#include <mm3dnow.h>
int main(void) {
__m64 b1;
b1 = _m_pswapd(b1);
_m_femms();
return 0;
}
EOF

# ---
# big/little-endian test
check_cc <<EOF || die "endian test failed"
unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
EOF
od -A n -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian

# add some useful compiler flags if supported
check_cflags -W
check_cflags -Wall
check_cppflags -D_LARGEFILE_SOURCE
check_cppflags -D_FILE_OFFSET_BITS=64
check_cppflags -D_REENTRANT

# default extralibs
add_extralibs -lpthread
add_extralibs -lrt

#################################################
#   check for debug symbols
#################################################
enabled debug && add_cflags -g"$debuglevel" && add_cppflags -DHAVE_DEBUG

if enabled small; then
  check_cflags -Os
elif enabled optimize; then
  if test -n "`$cc -v 2>&1 | grep xlc`"; then
    add_cflags  "-O5"
    add_ldflags "-O5"
  else
    add_cflags "-O2"
  fi
fi


#################################################
#   check for FFmpeg libavformat
#################################################
if [ -n "$lavfdir" ]; then
  check_cppflags -I${lavfdir}/include
  check_ldflags -L${lavfdir}/lib
fi
if [ -n "$lavfincdir" ]; then
  check_cppflags -I${lavfincdir}
fi
if [ -n "$lavflibdir" ]; then
  check_ldflags -L${lavflibdir}
fi
if [ -z "$lavfdir" -a -z "$lavfincdir" -a -z "$lavflibdir" ]; then
  add_pkgconfig_deps libavformat
fi

echolog "Checking for libavformat ..."
check_lib libavformat/avformat.h av_metadata_conv -lavformat || die "Error, can't find libavformat !"


#################################################
#   check for SQLite sqlite3
#################################################
if [ -n "$sqlite3dir" ]; then
  check_cppflags -I$sqlite3dir
  check_ldflags -L$sqlite3dir
fi
if [ -z "$sqlite3dir" ]; then
  add_pkgconfig_deps sqlite3
fi

echolog "Checking for sqlite3 ..."
check_lib sqlite3.h sqlite3_version -lsqlite3 || die "Error, can't find sqlite3 !"


#################################################
#   Grabber
#################################################

grabber_enabled(){
    local grabup value
    for grab in $@; do
      grabup=`echo $grab | tr "[:lower:]" "[:upper:]"`
      eval value=\$grabber_$grab
      if test "$value" = "auto" -o "$value" = "yes"; then
        add_cppflags -DHAVE_GRABBER_$grabup
        grabber="yes"
        eval grabber_$grab="yes"
      fi
    done
}

grabber_forced(){
    local value
    for grab in $@; do
      eval value=\$grabber_$grab
      [ "$value" = "yes" ] && return 1
    done
    return 0
}

grabber_set_no(){
    for grab in $@; do
      eval grabber_$grab="no"
    done
}

grabber_set_yes(){
    for grab in $@; do
      eval grabber_$grab="yes"
    done
}

grabber_enable_dep(){
    local value list dep
    eval list=\$$1
    dep=`echo $1 | sed "s/\([a-z]*\)_.*/\\1/"`
    eval $dep="no"
    for grab in $list; do
      eval value=\$grabber_$grab
      if test "$value" = "auto" -o "$value" = "yes"; then
        eval $dep="yes"
        break
      fi
    done
}

grabber="no"
grabbers="allocine amazon exif ffmpeg imdb lastfm local lyricsfly lyricwiki nfo tmdb tvdb tvrage"

if [ "$grabber_all" != "auto" ]; then
  eval grabber_set_$grabber_all \$grabbers
fi

avcodec_dep_grabber="ffmpeg"
grabber_enable_dep avcodec_dep_grabber

avutil_dep_grabber="amazon lastfm tmdb tvdb"
grabber_enable_dep avutil_dep_grabber

exif_dep_grabber="exif"
grabber_enable_dep exif_dep_grabber

gcrypt_dep_grabber="amazon"
grabber_enable_dep gcrypt_dep_grabber

nfo_dep_grabber="nfo"
grabber_enable_dep nfo_dep_grabber

xml_dep_grabber="allocine amazon imdb lastfm lyricsfly lyricwiki tmdb tvdb tvrage"
grabber_enable_dep xml_dep_grabber

if enabled xml; then
  ###############################################
  #   check for libxml2
  ###############################################
  if [ -n "$xml2dir" ]; then
    check_cppflags -I$xml2dir
    check_ldflags -L$xml2dir
  fi
  if [ -z  "$xmldir" ]; then
    add_pkgconfig_deps libxml-2.0
  fi

  echologn "Checking for libxml2 ... "
  check_lib libxml/parser.h xmlReadMemory -lxml2
  if [ "$?" = 0 ]; then
    echolog "(yes)"
    add_cppflags -DUSE_XML
  else
    echolog "(no)"
    grabber_forced $xml_dep_grabber
    [ "$?" != 0 ] && die "Error, can't find libxml2 !"
    xml="no"
    grabber_set_no $xml_dep_grabber
  fi
fi

if enabled avutil; then
  ###############################################
  #   check for FFmpeg libavutil
  ###############################################
  if [ -n "$lavudir" ]; then
    check_cppflags -I${lavudir}/include
    check_ldflags -L${lavudir}/lib
  fi
  if [ -n "$lavuincdir" ]; then
    check_cppflags -I${lavuincdir}
  fi
  if [ -n "$lavulibdir" ]; then
    check_ldflags -L${lavulibdir}
  fi
  if [ -z "$lavudir" -a -z "$lavuincdir" -a -z "$lavulibdir" ]; then
    add_pkgconfig_deps libavutil
  fi

  echologn "Checking for libavutil ... "
  check_lib libavutil/md5.h av_md5_sum -lavutil
  if [ "$?" = 0 ]; then
    echolog "(yes)"
  else
    echolog "(no)"
    grabber_forced $avutil_dep_grabber
    [ "$?" != 0 ] && die "Error, can't find libavutil !"
    avutil="no"
    grabber_set_no $avutil_dep_grabber
  fi
fi

if enabled gcrypt; then
  ###############################################
  #   check for libgcrypt
  ###############################################
  if [ -n "$gcryptdir" ]; then
    check_cppflags -I$gcryptdir
    check_ldflags -L$gcryptdir
  fi
  if [ -z  "$gcryptdir" ]; then
    if `which libgcrypt-config 1>/dev/null 2>&1`; then
      add_cflags `libgcrypt-config --cflags`
      add_extralibs `libgcrypt-config --libs`
    fi
  fi

  echologn "Checking for libgcrypt ... "
  check_lib gcrypt.h gcry_md_open -lgcrypt
  if [ "$?" = 0 ]; then
    echolog "(yes)"
  else
    echolog "(no)"
    grabber_forced $gcrypt_dep_grabber
    [ "$?" != 0 ] && die "Error, can't find libgcrypt !"
    gcrypt="no"
    grabber_set_no $gcrypt_dep_grabber
  fi
fi

if enabled exif; then
  ###############################################
  #   check for libexif
  ###############################################
  if [ -n "$exifdir" ]; then
    check_cppflags -I$exifdir
    check_ldflags -L$exifdir
  fi
  if [ -z  "$exifdir" ]; then
    add_pkgconfig_deps libexif
  fi

  echologn "Checking for libexif ... "
  check_lib libexif/exif-data.h exif_entry_get_value -lexif
  if [ "$?" = 0 ]; then
    echolog "(yes)"
  else
    echolog "(no)"
    grabber_forced $exif_dep_grabber
    [ "$?" != 0 ] && die "Error, can't find libexif !"
    exif="no"
    grabber_set_no $exif_dep_grabber
  fi
fi

if enabled avcodec; then
  ###############################################
  #   check for FFmpeg libavcodec
  ###############################################
  if [ -n "$lavcdir" ]; then
    check_cppflags -I${lavcdir}/include
    check_ldflags -L${lavcdir}/lib
  fi
  if [ -n "$lavcincdir" ]; then
    check_cflags -I${lavcincdir}
  fi
  if [ -n "$lavclibdir" ]; then
    check_ldflags -L${lavclibdir}
  fi
  if [ -z  "$lavcdir" -a -z "$lavcincdir" -a -z "$lavclibdir" ]; then
    add_pkgconfig_deps libavcodec
  fi

  echologn "Checking for libavcodec ... "
  check_lib libavcodec/avcodec.h av_lockmgr_register -lavcodec
  if [ "$?" = 0 ]; then
    echolog "(yes)"
    add_cppflags -DUSE_LAVC
  else
    echolog "(no)"
    grabber_forced $avcodec_dep_grabber
    [ "$?" != 0 ] && die "Error, can't find libavcodec !"
    avcodec="no"
    grabber_set_no $avcodec_dep_grabber
  fi
fi

if enabled nfo; then
  ###############################################
  #   check for libnfo
  ###############################################
  if [ -n "$nfodir" ]; then
    check_cppflags -I$nfodir
    check_ldflags -L$nfodir
  fi
  if [ -z  "$nfodir" ]; then
    add_pkgconfig_deps libnfo
  fi

  echologn "Checking for libnfo ... "
  check_lib_version libnfo "1.0.0" "2.0.0"
  if [ "$?" = 0 ]; then
    check_lib nfo.h nfo_init -lnfo
    [ "$?" != 0 ] && die "Error, libnfo available but the compilation failed !"
    echolog "(yes)"
  else
    echolog "(no)"
    grabber_forced $nfo_dep_grabber
    [ "$?" != 0 ] && die "Error, can't find libnfo or bad version !"
    nfo="no"
    grabber_set_no $nfo_dep_grabber
  fi
fi

grabber_enabled dummy $grabbers

if enabled grabber; then
  ###############################################
  #   check for libcurl
  ###############################################
  if [ -n "$curldir" ]; then
    check_cppflags -I$curldir
    check_ldflags -L$curldir
  fi
  if [ -z  "$curldir" ]; then
    add_pkgconfig_deps libcurl
  fi

  echologn "Checking for libcurl ... "
  check_lib curl/curl.h curl_global_init -lcurl
  if [ "$?" = 0 ]; then
    echolog "(yes)"
    add_cppflags -DUSE_GRABBER
  else
    echolog "(no)"
    if enabled grabber_all; then
      die "Error, can't find libcurl (mandatory for the grabbers) !"
    fi
    grabber="no"
    grabber_set_no dummy $grabbers
  fi
fi

#################################################
#   version
#################################################
temp_host_cflags "-Isrc"
check_host_ld <<EOF
#include <stdio.h>
#include <valhalla.h>
int main(){
  printf("LIBVALHALLA_VERSION:"LIBVALHALLA_VERSION_STR);
  printf("\n");
  return 0;
}
EOF
VERSION=`strings $TMPE | sed -n -e 's,LIBVALHALLA_VERSION:,,p'`
restore_flags

#################################################
#   Miscellaneous
#################################################
if enabled logcolor; then
  add_cppflags -DUSE_LOGCOLOR
fi

# Doxygen
if enabled doc; then
  doc="no"
  which doxygen 2>&1 > /dev/null
  [ "$?" = 0 ] && doc="yes"
fi

#################################################
#   logging result
#################################################
echolog ""
echolog "libvalhalla: configure is OK"
echolog "  version            $VERSION"
echolog "configuration:"
echolog "  install prefix     $PREFIX"
echolog "  C compiler         $cc"
echolog "  AR                 $ar"
echolog "  RANLIB             $ranlib"
echolog "  STRIP              $strip"
echolog "  make               $make"
echolog "  Architecture       $arch ($cpu)"
echolog "  big-endian         ${bigendian-no}"
echolog "  debug symbols      $debug"
echolog "  strip symbols      $dostrip"
echolog "  optimize           $optimize"
echolog "  static             ${static}"
echolog "  shared             ${shared}"
echolog ""
echolog "  CFLAGS             $CFLAGS $CPPFLAGS"
echolog "  LDFLAGS            $LDFLAGS"
echolog "  extralibs          $extralibs"
echolog ""
echolog "  Grabbers support:  $grabber"
echolog "    Dummy            $grabber_dummy"
echolog "    Allocine         $grabber_allocine"
echolog "    Amazon           $grabber_amazon"
echolog "    EXIF             $grabber_exif"
echolog "    FFmpeg           $grabber_ffmpeg"
echolog "    ImDB             $grabber_imdb"
echolog "    Last.fm          $grabber_lastfm"
echolog "    Local Files      $grabber_local"
echolog "    LyricsFly        $grabber_lyricsfly"
echolog "    LyricWiki        $grabber_lyricwiki"
echolog "    NFO              $grabber_nfo"
echolog "    TheMovieDB       $grabber_tmdb"
echolog "    TheTVDB          $grabber_tvdb"
echolog "    TVRage           $grabber_tvrage"
echolog ""
echolog "Miscellaneous:"
echolog "  Documentation:     $doc"
echolog ""

#################################################
#   save configs attributes
#################################################
echolog "Creating config.mak ..."

echo "# Automatically generated by configure - do not modify!" > $CONFIGFILE

append_config "PREFIX=$PREFIX"
append_config "prefix=\$(DESTDIR)\$(PREFIX)"
append_config "bindir=\$(DESTDIR)$bindir"
append_config "libdir=\$(DESTDIR)$libdir"
append_config "includedir=\$(DESTDIR)$includedir"
append_config "docdir=\$(DESTDIR)$docdir"

append_config "MAKE=$make"
append_config "CC=$cc"
append_config "AR=$ar"
append_config "RANLIB=$ranlib"
append_config "LN=ln"

append_config "BUILD_STATIC=$static"
append_config "BUILD_SHARED=$shared"
append_config "BUILD_DYLIB=$dylib"

append_config "VERSION=$VERSION"

if enabled dostrip; then
  append_config "STRIP=$strip"
  append_config "INSTALLSTRIP=$installstrip"
else
  append_config "STRIP=echo ignoring strip"
  append_config "INSTALLSTRIP="
fi
append_config "EXTRALIBS=$extralibs"

append_config "CPPFLAGS=$CPPFLAGS"
append_config "OPTFLAGS=$CFLAGS"
append_config "LDFLAGS=$LDFLAGS"
append_config "INSTALL=$INSTALL"

if enabled bigendian; then
  append_config "WORDS_BIGENDIAN=yes"
fi

append_config "XML=$xml"
append_config "EXIF=$exif"
append_config "NFO=$nfo"
append_config "MD5=$avutil"
append_config "HMAC_SHA256=$gcrypt"
append_config "GRABBER=$grabber"
append_config "GRABBER_DUMMY=$grabber_dummy"
append_config "GRABBER_ALLOCINE=$grabber_allocine"
append_config "GRABBER_AMAZON=$grabber_amazon"
append_config "GRABBER_EXIF=$grabber_exif"
append_config "GRABBER_FFMPEG=$grabber_ffmpeg"
append_config "GRABBER_IMDB=$grabber_imdb"
append_config "GRABBER_LASTFM=$grabber_lastfm"
append_config "GRABBER_LOCAL=$grabber_local"
append_config "GRABBER_LYRICSFLY=$grabber_lyricsfly"
append_config "GRABBER_LYRICWIKI=$grabber_lyricwiki"
append_config "GRABBER_NFO=$grabber_nfo"
append_config "GRABBER_TMDB=$grabber_tmdb"
append_config "GRABBER_TVDB=$grabber_tvdb"
append_config "GRABBER_TVRAGE=$grabber_tvrage"

append_config "DEBUG=$debug"
append_config "DOC=$doc"

#################################################
#   make pkg-config files
#################################################
echolog "Creating libvalhalla.pc ..."

pkgconfig_generate libvalhalla \
                   "A tiny media scanner library" \
                   "$VERSION" \
                   "-lvalhalla" \
                   "$extralibs" \
                   "" \
                   "" \
                   "$pkgconfig_requires"

clean
exit 0