configure

#!/bin/sh
#
# qemu configure script (c) 2003 Fabrice Bellard
#
# set temporary file name
if test ! -z "$TMPDIR" ; then
    TMPDIR1="${TMPDIR}"
elif test ! -z "$TEMPDIR" ; then
    TMPDIR1="${TEMPDIR}"
else
    TMPDIR1="/tmp"
fi

TMPC="${TMPDIR1}/qemu-conf-${RANDOM}-$$-${RANDOM}.c"
TMPO="${TMPDIR1}/qemu-conf-${RANDOM}-$$-${RANDOM}.o"
TMPE="${TMPDIR1}/qemu-conf-${RANDOM}-$$-${RANDOM}.exe"

trap "rm -f $TMPC $TMPO $TMPE ; exit" 0 2 3 15

compile_object() {
  $cc $QEMU_CFLAGS -c -o $TMPO $TMPC > /dev/null 2> /dev/null
}

compile_prog() {
  local_cflags="$1"
  local_ldflags="$2"
  $cc $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC $LDFLAGS $local_ldflags > /dev/null 2> /dev/null
}

# default parameters
cpu=""
prefix=""
interp_prefix="/usr/gnemul/qemu-%M"
static="no"
sparc_cpu=""
cross_prefix=""
cc="gcc"
audio_drv_list=""
audio_card_list="ac97 es1370 sb16"
audio_possible_cards="ac97 es1370 sb16 cs4231a adlib gus"
block_drv_whitelist=""
host_cc="gcc"
ar="ar"
make="make"
install="install"
objcopy="objcopy"
ld="ld"
helper_cflags=""
libs_softmmu=""
libs_tools=""
audio_pt_int=""
audio_win_int=""

# parse CC options first
for opt do
  optarg=`expr "x$opt" : 'x[^=]*=\(.*\)'`
  case "$opt" in
  --cross-prefix=*) cross_prefix="$optarg"
  ;;
  --cc=*) cc="$optarg"
  ;;
  --cpu=*) cpu="$optarg"
  ;;
  --extra-cflags=*) QEMU_CFLAGS="$optarg $QEMU_CFLAGS"
  ;;
  --extra-ldflags=*) LDFLAGS="$optarg $LDFLAGS"
  ;;
  --sparc_cpu=*)
    sparc_cpu="$optarg"
    case $sparc_cpu in
    v7|v8|v8plus|v8plusa)
      cpu="sparc"
    ;;
    v9)
      cpu="sparc64"
    ;;
    *)
      echo "undefined SPARC architecture. Exiting";
      exit 1
    ;;
    esac
  ;;
  esac
done
# OS specific
# Using uname is really, really broken.  Once we have the right set of checks
# we can eliminate it's usage altogether

cc="${cross_prefix}${cc}"
ar="${cross_prefix}${ar}"
objcopy="${cross_prefix}${objcopy}"
ld="${cross_prefix}${ld}"

# default flags for all hosts
QEMU_CFLAGS="-fno-strict-aliasing $QEMU_CFLAGS"
CFLAGS="-g $CFLAGS"
QEMU_CFLAGS="-Wall -Wundef -Wendif-labels -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
QEMU_CFLAGS="-U_FORTIFY_SOURCE $QEMU_CFLAGS"
QEMU_CFLAGS="-I. -I\$(SRC_PATH) $QEMU_CFLAGS"
LDFLAGS="-g $LDFLAGS"

gcc_flags="-Wold-style-declaration -Wold-style-definition"
cat > $TMPC << EOF
int main(void) { }
EOF
for flag in $gcc_flags; do
    if compile_prog "$QEMU_CFLAGS" "$flag" ; then
	QEMU_CFLAGS="$flag $QEMU_CFLAGS"
    fi
done

# check that the C compiler works.
cat > $TMPC <<EOF
int main(void) {}
EOF

if compile_object ; then
  : C compiler works ok
else
    echo "ERROR: \"$cc\" either does not exist or does not work"
    exit 1
fi

check_define() {
cat > $TMPC <<EOF
#if !defined($1)
#error Not defined
#endif
int main(void) { return 0; }
EOF
  compile_object
}

if test ! -z "$cpu" ; then
  # command line argument
  :
elif check_define __i386__ ; then
  cpu="i386"
elif check_define __x86_64__ ; then
  cpu="x86_64"
elif check_define __sparc__ ; then
  # We can't check for 64 bit (when gcc is biarch) or V8PLUSA
  # They must be specified using --sparc_cpu
  if check_define __arch64__ ; then
    cpu="sparc64"
  else
    cpu="sparc"
  fi
elif check_define _ARCH_PPC ; then
  if check_define _ARCH_PPC64 ; then
    cpu="ppc64"
  else
    cpu="ppc"
  fi
elif check_define __mips__ ; then
  cpu="mips"
else
  cpu=`uname -m`
fi

target_list=""
case "$cpu" in
  alpha|cris|ia64|m68k|microblaze|ppc|ppc64|sparc64)
    cpu="$cpu"
  ;;
  i386|i486|i586|i686|i86pc|BePC)
    cpu="i386"
  ;;
  x86_64|amd64)
    cpu="x86_64"
  ;;
  armv*b)
    cpu="armv4b"
  ;;
  armv*l)
    cpu="armv4l"
  ;;
  parisc|parisc64)
    cpu="hppa"
  ;;
  mips*)
    cpu="mips"
  ;;
  s390)
    cpu="s390"
  ;;
  s390x)
    cpu="s390x"
  ;;
  sparc|sun4[cdmuv])
    cpu="sparc"
  ;;
  *)
    cpu="unknown"
  ;;
esac

# Default value for a variable defining feature "foo".
#  * foo="no"  feature will only be used if --enable-foo arg is given
#  * foo=""    feature will be searched for, and if found, will be used
#              unless --disable-foo is given
#  * foo="yes" this value will only be set by --enable-foo flag.
#              feature will searched for,
#              if not found, configure exits with error
#
# Always add --enable-foo and --disable-foo command line args.
# Distributions want to ensure that several features are compiled in, and it
# is impossible without a --enable-foo that exits if a feature is not found.

bluez=""
brlapi=""
curl=""
curses=""
docs=""
fdt=""
kvm=""
kvm_para=""
nptl=""
sdl=""
sparse="no"
uuid=""
vde=""
vnc_tls=""
vnc_sasl=""
xen=""
linux_aio=""

gprof="no"
debug_tcg="no"
debug="no"
strip_opt="yes"
bigendian="no"
mingw32="no"
EXESUF=""
slirp="yes"
fmod_lib=""
fmod_inc=""
oss_lib=""
bsd="no"
linux="no"
solaris="no"
profiler="no"
cocoa="no"
softmmu="yes"
linux_user="no"
darwin_user="no"
bsd_user="no"
guest_base=""
uname_release=""
io_thread="no"
mixemu="no"
kerneldir=""
aix="no"
blobs="yes"
pkgversion=""
check_utests="no"
user_pie="no"
zero_malloc=""

# OS specific
if check_define __linux__ ; then
  targetos="Linux"
elif check_define _WIN32 ; then
  targetos='MINGW32'
elif check_define __OpenBSD__ ; then
  targetos='OpenBSD'
elif check_define __sun__ ; then
  targetos='SunOS'
else
  targetos=`uname -s`
fi

case $targetos in
CYGWIN*)
  mingw32="yes"
  QEMU_CFLAGS="-mno-cygwin $QEMU_CFLAGS"
  audio_possible_drivers="winwave sdl"
  audio_drv_list="winwave"
;;
MINGW32*)
  mingw32="yes"
  audio_possible_drivers="winwave dsound sdl fmod"
  audio_drv_list="winwave"
;;
GNU/kFreeBSD)
  bsd="yes"
  audio_drv_list="oss"
  audio_possible_drivers="oss sdl esd pa"
;;
FreeBSD)
  bsd="yes"
  make="gmake"
  audio_drv_list="oss"
  audio_possible_drivers="oss sdl esd pa"
;;
DragonFly)
  bsd="yes"
  make="gmake"
  audio_drv_list="oss"
  audio_possible_drivers="oss sdl esd pa"
;;
NetBSD)
  bsd="yes"
  make="gmake"
  audio_drv_list="oss"
  audio_possible_drivers="oss sdl esd"
  oss_lib="-lossaudio"
;;
OpenBSD)
  bsd="yes"
  make="gmake"
  audio_drv_list="oss"
  audio_possible_drivers="oss sdl esd"
  oss_lib="-lossaudio"
;;
Darwin)
  bsd="yes"
  darwin="yes"
  # on Leopard most of the system is 32-bit, so we have to ask the kernel it if we can
  # run 64-bit userspace code
  if [ "$cpu" = "i386" ] ; then
    is_x86_64=`sysctl -n hw.optional.x86_64`
    [ "$is_x86_64" = "1" ] && cpu=x86_64
  fi
  if [ "$cpu" = "x86_64" ] ; then
    QEMU_CFLAGS="-arch x86_64 $QEMU_CFLAGS"
    LDFLAGS="-arch x86_64 $LDFLAGS"
  else
    QEMU_CFLAGS="-mdynamic-no-pic $QEMU_CFLAGS"
  fi
  darwin_user="yes"
  cocoa="yes"
  audio_drv_list="coreaudio"
  audio_possible_drivers="coreaudio sdl fmod"
  LDFLAGS="-framework CoreFoundation -framework IOKit $LDFLAGS"
  libs_softmmu="-F/System/Library/Frameworks -framework Cocoa -framework IOKit $libs_softmmu"
;;
SunOS)
  solaris="yes"
  make="gmake"
  install="ginstall"
  ld="gld"
  needs_libsunmath="no"
  solarisrev=`uname -r | cut -f2 -d.`
  # have to select again, because `uname -m` returns i86pc
  # even on an x86_64 box.
  solariscpu=`isainfo -k`
  if test "${solariscpu}" = "amd64" ; then
    cpu="x86_64"
  fi
  if [ "$cpu" = "i386" -o "$cpu" = "x86_64" ] ; then
    if test "$solarisrev" -le 9 ; then
      if test -f /opt/SUNWspro/prod/lib/libsunmath.so.1; then
        needs_libsunmath="yes"
        QEMU_CFLAGS="-I/opt/SUNWspro/prod/include/cc $QEMU_CFLAGS"
        LDFLAGS="-L/opt/SUNWspro/prod/lib -R/opt/SUNWspro/prod/lib $LDFLAGS"
        LIBS="-lsunmath $LIBS"
      else
        echo "QEMU will not link correctly on Solaris 8/X86 or 9/x86 without"
        echo "libsunmath from the Sun Studio compilers tools, due to a lack of"
        echo "C99 math features in libm.so in Solaris 8/x86 and Solaris 9/x86"
        echo "Studio 11 can be downloaded from www.sun.com."
        exit 1
      fi
    fi
  fi
  if test -f /usr/include/sys/soundcard.h ; then
    audio_drv_list="oss"
  fi
  audio_possible_drivers="oss sdl"
# needed for CMSG_ macros in sys/socket.h
  QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
# needed for TIOCWIN* defines in termios.h
  QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
  QEMU_CFLAGS="-std=gnu99 $QEMU_CFLAGS"
  LIBS="-lsocket -lnsl -lresolv $LIBS"
;;
AIX)
  aix="yes"
  make="gmake"
;;
*)
  audio_drv_list="oss"
  audio_possible_drivers="oss alsa sdl esd pa"
  linux="yes"
  linux_user="yes"
  usb="linux"
  if [ "$cpu" = "i386" -o "$cpu" = "x86_64" ] ; then
    audio_possible_drivers="$audio_possible_drivers fmod"
  fi
;;
esac

if [ "$bsd" = "yes" ] ; then
  if [ "$darwin" != "yes" ] ; then
    usb="bsd"
  fi
  bsd_user="yes"
fi

if test "$mingw32" = "yes" ; then
  EXESUF=".exe"
  QEMU_CFLAGS="-DWIN32_LEAN_AND_MEAN -DWINVER=0x501 $QEMU_CFLAGS"
  LIBS="-lwinmm -lws2_32 -liphlpapi $LIBS"
fi

# find source path
source_path=`dirname "$0"`
source_path_used="no"
workdir=`pwd`
if [ -z "$source_path" ]; then
    source_path=$workdir
else
    source_path=`cd "$source_path"; pwd`
fi
[ -f "$workdir/vl.c" ] || source_path_used="yes"

werror=""

for opt do
  optarg=`expr "x$opt" : 'x[^=]*=\(.*\)'`
  case "$opt" in
  --help|-h) show_help=yes
  ;;
  --prefix=*) prefix="$optarg"
  ;;
  --interp-prefix=*) interp_prefix="$optarg"
  ;;
  --source-path=*) source_path="$optarg"
  source_path_used="yes"
  ;;
  --cross-prefix=*)
  ;;
  --cc=*)
  ;;
  --host-cc=*) host_cc="$optarg"
  ;;
  --make=*) make="$optarg"
  ;;
  --install=*) install="$optarg"
  ;;
  --extra-cflags=*)
  ;;
  --extra-ldflags=*)
  ;;
  --cpu=*)
  ;;
  --target-list=*) target_list="$optarg"
  ;;
  --enable-gprof) gprof="yes"
  ;;
  --static) static="yes"
  ;;
  --disable-sdl) sdl="no"
  ;;
  --enable-sdl) sdl="yes"
  ;;
  --fmod-lib=*) fmod_lib="$optarg"
  ;;
  --fmod-inc=*) fmod_inc="$optarg"
  ;;
  --oss-lib=*) oss_lib="$optarg"
  ;;
  --audio-card-list=*) audio_card_list=`echo "$optarg" | sed -e 's/,/ /g'`
  ;;
  --audio-drv-list=*) audio_drv_list="$optarg"
  ;;
  --block-drv-whitelist=*) block_drv_whitelist=`echo "$optarg" | sed -e 's/,/ /g'`
  ;;
  --enable-debug-tcg) debug_tcg="yes"
  ;;
  --disable-debug-tcg) debug_tcg="no"
  ;;
  --enable-debug)
      # Enable debugging options that aren't excessively noisy
      debug_tcg="yes"
      debug="yes"
      strip_opt="no"
  ;;
  --enable-sparse) sparse="yes"
  ;;
  --disable-sparse) sparse="no"
  ;;
  --disable-strip) strip_opt="no"
  ;;
  --disable-vnc-tls) vnc_tls="no"
  ;;
  --enable-vnc-tls) vnc_tls="yes"
  ;;
  --disable-vnc-sasl) vnc_sasl="no"
  ;;
  --enable-vnc-sasl) vnc_sasl="yes"
  ;;
  --disable-slirp) slirp="no"
  ;;
  --disable-uuid) uuid="no"
  ;;
  --enable-uuid) uuid="yes"
  ;;
  --disable-vde) vde="no"
  ;;
  --enable-vde) vde="yes"
  ;;
  --disable-xen) xen="no"
  ;;
  --enable-xen) xen="yes"
  ;;
  --disable-brlapi) brlapi="no"
  ;;
  --enable-brlapi) brlapi="yes"
  ;;
  --disable-bluez) bluez="no"
  ;;
  --enable-bluez) bluez="yes"
  ;;
  --disable-kvm) kvm="no"
  ;;
  --enable-kvm) kvm="yes"
  ;;
  --enable-profiler) profiler="yes"
  ;;
  --enable-cocoa)
      cocoa="yes" ;
      sdl="no" ;
      audio_drv_list="coreaudio `echo $audio_drv_list | sed s,coreaudio,,g`"
  ;;
  --disable-system) softmmu="no"
  ;;
  --enable-system) softmmu="yes"
  ;;
  --disable-user)
      linux_user="no" ;
      bsd_user="no" ;
      darwin_user="no"
  ;;
  --enable-user) ;;
  --disable-linux-user) linux_user="no"
  ;;
  --enable-linux-user) linux_user="yes"
  ;;
  --disable-darwin-user) darwin_user="no"
  ;;
  --enable-darwin-user) darwin_user="yes"
  ;;
  --disable-bsd-user) bsd_user="no"
  ;;
  --enable-bsd-user) bsd_user="yes"
  ;;
  --enable-guest-base) guest_base="yes"
  ;;
  --disable-guest-base) guest_base="no"
  ;;
  --enable-user-pie) user_pie="yes"
  ;;
  --disable-user-pie) user_pie="no"
  ;;
  --enable-uname-release=*) uname_release="$optarg"
  ;;
  --sparc_cpu=*)
  ;;
  --enable-werror) werror="yes"
  ;;
  --disable-werror) werror="no"
  ;;
  --disable-curses) curses="no"
  ;;
  --enable-curses) curses="yes"
  ;;
  --disable-curl) curl="no"
  ;;
  --enable-curl) curl="yes"
  ;;
  --disable-fdt) fdt="no"
  ;;
  --enable-fdt) fdt="yes"
  ;;
  --disable-check-utests) check_utests="no"
  ;;
  --enable-check-utests) check_utests="yes"
  ;;
  --disable-nptl) nptl="no"
  ;;
  --enable-nptl) nptl="yes"
  ;;
  --enable-mixemu) mixemu="yes"
  ;;
  --disable-linux-aio) linux_aio="no"
  ;;
  --enable-linux-aio) linux_aio="yes"
  ;;
  --enable-io-thread) io_thread="yes"
  ;;
  --disable-blobs) blobs="no"
  ;;
  --kerneldir=*) kerneldir="$optarg"
  ;;
  --with-pkgversion=*) pkgversion=" ($optarg)"
  ;;
  --disable-docs) docs="no"
  ;;
  --enable-docs) docs="yes"
  ;;
  *) echo "ERROR: unknown option $opt"; show_help="yes"
  ;;
  esac
done

#
# If cpu ~= sparc and  sparc_cpu hasn't been defined, plug in the right
# QEMU_CFLAGS/LDFLAGS (assume sparc_v8plus for 32-bit and sparc_v9 for 64-bit)
#
host_guest_base="no"
case "$cpu" in
    sparc) case $sparc_cpu in
           v7|v8)
             QEMU_CFLAGS="-mcpu=${sparc_cpu} -D__sparc_${sparc_cpu}__ $QEMU_CFLAGS"
           ;;
           v8plus|v8plusa)
             QEMU_CFLAGS="-mcpu=ultrasparc -D__sparc_${sparc_cpu}__ $QEMU_CFLAGS"
           ;;
           *) # sparc_cpu not defined in the command line
             QEMU_CFLAGS="-mcpu=ultrasparc -D__sparc_v8plus__ $QEMU_CFLAGS"
           esac
           LDFLAGS="-m32 $LDFLAGS"
           QEMU_CFLAGS="-m32 -ffixed-g2 -ffixed-g3 $QEMU_CFLAGS"
           if test "$solaris" = "no" ; then
             QEMU_CFLAGS="-ffixed-g1 -ffixed-g6 $QEMU_CFLAGS"
             helper_cflags="-ffixed-i0"
           fi
           ;;
    sparc64)
           QEMU_CFLAGS="-m64 -mcpu=ultrasparc -D__sparc_v9__ $QEMU_CFLAGS"
           LDFLAGS="-m64 $LDFLAGS"
           QEMU_CFLAGS="-ffixed-g5 -ffixed-g6 -ffixed-g7 $QEMU_CFLAGS"
           if test "$solaris" != "no" ; then
             QEMU_CFLAGS="-ffixed-g1 $QEMU_CFLAGS"
           fi
           ;;
    s390)
           QEMU_CFLAGS="-march=z900 $QEMU_CFLAGS"
           ;;
    i386)
           QEMU_CFLAGS="-m32 $QEMU_CFLAGS"
           LDFLAGS="-m32 $LDFLAGS"
           helper_cflags="-fomit-frame-pointer"
           host_guest_base="yes"
           ;;
    x86_64)
           QEMU_CFLAGS="-m64 $QEMU_CFLAGS"
           LDFLAGS="-m64 $LDFLAGS"
           host_guest_base="yes"
           ;;
    arm*)
           host_guest_base="yes"
           ;;
    ppc*)
           host_guest_base="yes"
           ;;
esac

[ -z "$guest_base" ] && guest_base="$host_guest_base"

if test x"$show_help" = x"yes" ; then
cat << EOF

Usage: configure [options]
Options: [defaults in brackets after descriptions]

EOF
echo "Standard options:"
echo "  --help                   print this message"
echo "  --prefix=PREFIX          install in PREFIX [$prefix]"
echo "  --interp-prefix=PREFIX   where to find shared libraries, etc."
echo "                           use %M for cpu name [$interp_prefix]"
echo "  --target-list=LIST       set target list [$target_list]"
echo ""
echo "Advanced options (experts only):"
echo "  --source-path=PATH       path of source code [$source_path]"
echo "  --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]"
echo "  --cc=CC                  use C compiler CC [$cc]"
echo "  --host-cc=CC             use C compiler CC [$host_cc] for dyngen etc."
echo "  --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS"
echo "  --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS"
echo "  --make=MAKE              use specified make [$make]"
echo "  --install=INSTALL        use specified install [$install]"
echo "  --static                 enable static build [$static]"
echo "  --enable-debug-tcg       enable TCG debugging"
echo "  --disable-debug-tcg      disable TCG debugging (default)"
echo "  --enable-debug           enable common debug build options"
echo "  --enable-sparse          enable sparse checker"
echo "  --disable-sparse         disable sparse checker (default)"
echo "  --disable-strip          disable stripping binaries"
echo "  --disable-werror         disable compilation abort on warning"
echo "  --disable-sdl            disable SDL"
echo "  --enable-sdl             enable SDL"
echo "  --enable-cocoa           enable COCOA (Mac OS X only)"
echo "  --audio-drv-list=LIST    set audio drivers list:"
echo "                           Available drivers: $audio_possible_drivers"
echo "  --audio-card-list=LIST   set list of emulated audio cards [$audio_card_list]"
echo "                           Available cards: $audio_possible_cards"
echo "  --block-drv-whitelist=L  set block driver whitelist"
echo "                           (affects only QEMU, not qemu-img)"
echo "  --enable-mixemu          enable mixer emulation"
echo "  --disable-xen            disable xen backend driver support"
echo "  --enable-xen             enable xen backend driver support"
echo "  --disable-brlapi         disable BrlAPI"
echo "  --enable-brlapi          enable BrlAPI"
echo "  --disable-vnc-tls        disable TLS encryption for VNC server"
echo "  --enable-vnc-tls         enable TLS encryption for VNC server"
echo "  --disable-vnc-sasl       disable SASL encryption for VNC server"
echo "  --enable-vnc-sasl        enable SASL encryption for VNC server"
echo "  --disable-curses         disable curses output"
echo "  --enable-curses          enable curses output"
echo "  --disable-curl           disable curl connectivity"
echo "  --enable-curl            enable curl connectivity"
echo "  --disable-fdt            disable fdt device tree"
echo "  --enable-fdt             enable fdt device tree"
echo "  --disable-check-utests   disable check unit-tests"
echo "  --enable-check-utests    enable check unit-tests"
echo "  --disable-bluez          disable bluez stack connectivity"
echo "  --enable-bluez           enable bluez stack connectivity"
echo "  --disable-kvm            disable KVM acceleration support"
echo "  --enable-kvm             enable KVM acceleration support"
echo "  --disable-nptl           disable usermode NPTL support"
echo "  --enable-nptl            enable usermode NPTL support"
echo "  --enable-system          enable all system emulation targets"
echo "  --disable-system         disable all system emulation targets"
echo "  --enable-user            enable supported user emulation targets"
echo "  --disable-user           disable all user emulation targets"
echo "  --enable-linux-user      enable all linux usermode emulation targets"
echo "  --disable-linux-user     disable all linux usermode emulation targets"
echo "  --enable-darwin-user     enable all darwin usermode emulation targets"
echo "  --disable-darwin-user    disable all darwin usermode emulation targets"
echo "  --enable-bsd-user        enable all BSD usermode emulation targets"
echo "  --disable-bsd-user       disable all BSD usermode emulation targets"
echo "  --enable-guest-base      enable GUEST_BASE support for usermode"
echo "                           emulation targets"
echo "  --disable-guest-base     disable GUEST_BASE support"
echo "  --enable-user-pie        build usermode emulation targets as PIE"
echo "  --disable-user-pie       do not build usermode emulation targets as PIE"
echo "  --fmod-lib               path to FMOD library"
echo "  --fmod-inc               path to FMOD includes"
echo "  --oss-lib                path to OSS library"
echo "  --enable-uname-release=R Return R for uname -r in usermode emulation"
echo "  --sparc_cpu=V            Build qemu for Sparc architecture v7, v8, v8plus, v8plusa, v9"
echo "  --disable-uuid           disable uuid support"
echo "  --enable-uuid            enable uuid support"
echo "  --disable-vde            disable support for vde network"
echo "  --enable-vde             enable support for vde network"
echo "  --disable-linux-aio      disable Linux AIO support"
echo "  --enable-linux-aio       enable Linux AIO support"
echo "  --enable-io-thread       enable IO thread"
echo "  --disable-blobs          disable installing provided firmware blobs"
echo "  --kerneldir=PATH         look for kernel includes in PATH"
echo ""
echo "NOTE: The object files are built at the place where configure is launched"
exit 1
fi

#
# Solaris specific configure tool chain decisions
#
if test "$solaris" = "yes" ; then
  solinst=`which $install 2> /dev/null | /usr/bin/grep -v "no $install in"`
  if test -z "$solinst" ; then
    echo "Solaris install program not found. Use --install=/usr/ucb/install or"
    echo "install fileutils from www.blastwave.org using pkg-get -i fileutils"
    echo "to get ginstall which is used by default (which lives in /opt/csw/bin)"
    exit 1
  fi
  if test "$solinst" = "/usr/sbin/install" ; then
    echo "Error: Solaris /usr/sbin/install is not an appropriate install program."
    echo "try ginstall from the GNU fileutils available from www.blastwave.org"
    echo "using pkg-get -i fileutils, or use --install=/usr/ucb/install"
    exit 1
  fi
  sol_ar=`which ar 2> /dev/null | /usr/bin/grep -v "no ar in"`
  if test -z "$sol_ar" ; then
    echo "Error: No path includes ar"
    if test -f /usr/ccs/bin/ar ; then
      echo "Add /usr/ccs/bin to your path and rerun configure"
    fi
    exit 1
  fi
fi


if test -z "$target_list" ; then
# these targets are portable
    if [ "$softmmu" = "yes" ] ; then
        target_list="\
i386-softmmu \
x86_64-softmmu \
arm-softmmu \
cris-softmmu \
m68k-softmmu \
microblaze-softmmu \
mips-softmmu \
mipsel-softmmu \
mips64-softmmu \
mips64el-softmmu \
ppc-softmmu \
ppcemb-softmmu \
ppc64-softmmu \
sh4-softmmu \
sh4eb-softmmu \
sparc-softmmu \
sparc64-softmmu \
"
    fi
# the following are Linux specific
    if [ "$linux_user" = "yes" ] ; then
        target_list="${target_list}\
i386-linux-user \
x86_64-linux-user \
alpha-linux-user \
arm-linux-user \
armeb-linux-user \
cris-linux-user \
m68k-linux-user \
microblaze-linux-user \
mips-linux-user \
mipsel-linux-user \
ppc-linux-user \
ppc64-linux-user \
ppc64abi32-linux-user \
sh4-linux-user \
sh4eb-linux-user \
sparc-linux-user \
sparc64-linux-user \
sparc32plus-linux-user \
"
    fi
# the following are Darwin specific
    if [ "$darwin_user" = "yes" ] ; then
        target_list="$target_list i386-darwin-user ppc-darwin-user "
    fi
# the following are BSD specific
    if [ "$bsd_user" = "yes" ] ; then
        target_list="${target_list}\
i386-bsd-user \
x86_64-bsd-user \
sparc-bsd-user \
sparc64-bsd-user \
"
    fi
else
    target_list=`echo "$target_list" | sed -e 's/,/ /g'`
fi
if test -z "$target_list" ; then
    echo "No targets enabled"
    exit 1
fi

feature_not_found() {
  feature=$1

  echo "ERROR"
  echo "ERROR: User requested feature $feature"
  echo "ERROR: configure was not able to find it"
  echo "ERROR"
  exit 1;
}

if test -z "$cross_prefix" ; then

# ---
# big/little endian test
cat > $TMPC << EOF
#include <inttypes.h>
int main(int argc, char ** argv){
        volatile uint32_t i=0x01234567;
        return (*((uint8_t*)(&i))) == 0x67;
}
EOF

if compile_prog "" "" ; then
$TMPE && bigendian="yes"
else
echo big/little test failed
fi

else

# if cross compiling, cannot launch a program, so make a static guess
case "$cpu" in
  armv4b|hppa|m68k|mips|mips64|ppc|ppc64|s390|s390x|sparc|sparc64)
    bigendian=yes
  ;;
esac

fi

# host long bits test
hostlongbits="32"
case "$cpu" in
  x86_64|alpha|ia64|sparc64|ppc64|s390x)
    hostlongbits=64
  ;;
esac


##########################################
# NPTL probe

if test "$nptl" != "no" ; then
  cat > $TMPC <<EOF
#include <sched.h>
#include <linux/futex.h>
void foo()
{
#if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
#error bork
#endif
}
EOF

  if compile_object ; then
    nptl=yes
  else
    if test "$nptl" = "yes" ; then
      feature_not_found "nptl"
    fi
    nptl=no
  fi
fi

##########################################
# zlib check

cat > $TMPC << EOF
#include <zlib.h>
int main(void) { zlibVersion(); return 0; }
EOF
if compile_prog "" "-lz" ; then
    :
else
    echo
    echo "Error: zlib check failed"
    echo "Make sure to have the zlib libs and headers installed."
    echo
    exit 1
fi

##########################################
# xen probe

if test "$xen" != "no" ; then
  xen_libs="-lxenstore -lxenctrl -lxenguest"
  cat > $TMPC <<EOF
#include <xenctrl.h>
#include <xs.h>
int main(void) { xs_daemon_open(); xc_interface_open(); return 0; }
EOF
  if compile_prog "" "$xen_libs" ; then
    xen=yes
    libs_softmmu="$xen_libs $libs_softmmu"
  else
    if test "$xen" = "yes" ; then
      feature_not_found "xen"
    fi
    xen=no
  fi
fi

##########################################
# pkgconfig probe

pkgconfig="${cross_prefix}pkg-config"
if ! test -x "$(which $pkgconfig 2>/dev/null)"; then
  # likely not cross compiling, or hope for the best
  pkgconfig=pkg-config
fi

##########################################
# Sparse probe
if test "$sparse" != "no" ; then
  if test -x "$(which cgcc 2>/dev/null)"; then
    sparse=yes
  else
    if test "$sparse" = "yes" ; then
      feature_not_found "sparse"
    fi
    sparse=no
  fi
fi

##########################################
# SDL probe

sdl_too_old=no

if test "$sdl" != "no" ; then
  cat > $TMPC << EOF
#include <SDL.h>
#undef main /* We don't want SDL to override our main() */
int main( void ) { return SDL_Init (SDL_INIT_VIDEO); }
EOF
  sdl_cflags=`sdl-config --cflags 2> /dev/null`
  sdl_libs=`sdl-config --libs 2> /dev/null`
  if compile_prog "$sdl_cflags" "$sdl_libs" ; then
    _sdlversion=`sdl-config --version | sed 's/[^0-9]//g'`
    if test "$_sdlversion" -lt 121 ; then
      sdl_too_old=yes
    else
      if test "$cocoa" = "no" ; then
        sdl=yes
      fi
    fi

    # static link with sdl ? (note: sdl.pc's --static --libs is broken)
    if test "$sdl" = "yes" -a "$static" = "yes" ; then
      sdl_libs=`sdl-config --static-libs 2>/dev/null`
      if test $? = 0 && echo $sdl_libs | grep -- -laa > /dev/null; then
         sdl_libs="$sdl_libs `aalib-config --static-libs >2 /dev/null`"
         sdl_cflags="$sdl_cflags `aalib-config --cflags >2 /dev/null`"
      fi
      if compile_prog "$sdl_cflags" "$sdl_libs" ; then
	:
      else
        sdl=no
      fi
    fi # static link
  else # sdl not found
    if test "$sdl" = "yes" ; then
      feature_not_found "sdl"
    fi
    sdl=no
  fi # sdl compile test
fi

if test "$sdl" = "yes" ; then
  cat > $TMPC <<EOF
#include <SDL.h>
#if defined(SDL_VIDEO_DRIVER_X11)
#include <X11/XKBlib.h>
#else
#error No x11 support
#endif
int main(void) { return 0; }
EOF
  if compile_prog "$sdl_cflags" "$sdl_libs" ; then
    sdl_libs="$sdl_libs -lX11"
  fi
  if test "$mingw32" = "yes" ; then
    sdl_libs="`echo $sdl_libs | sed s/-mwindows//g` -mconsole"
  fi
  libs_softmmu="$sdl_libs $libs_softmmu"
fi

##########################################
# VNC TLS detection
if test "$vnc_tls" != "no" ; then
  cat > $TMPC <<EOF
#include <gnutls/gnutls.h>
int main(void) { gnutls_session_t s; gnutls_init(&s, GNUTLS_SERVER); return 0; }
EOF
  vnc_tls_cflags=`$pkgconfig --cflags gnutls 2> /dev/null`
  vnc_tls_libs=`$pkgconfig --libs gnutls 2> /dev/null`
  if compile_prog "$vnc_tls_cflags" "$vnc_tls_libs" ; then
    vnc_tls=yes
    libs_softmmu="$vnc_tls_libs $libs_softmmu"
  else
    if test "$vnc_tls" = "yes" ; then
      feature_not_found "vnc-tls"
    fi
    vnc_tls=no
  fi
fi

##########################################
# VNC SASL detection
if test "$vnc_sasl" != "no" ; then
  cat > $TMPC <<EOF
#include <sasl/sasl.h>
#include <stdio.h>
int main(void) { sasl_server_init(NULL, "qemu"); return 0; }
EOF
  # Assuming Cyrus-SASL installed in /usr prefix
  vnc_sasl_cflags=""
  vnc_sasl_libs="-lsasl2"
  if compile_prog "$vnc_sasl_cflags" "$vnc_sasl_libs" ; then
    vnc_sasl=yes
    libs_softmmu="$vnc_sasl_libs $libs_softmmu"
  else
    if test "$vnc_sasl" = "yes" ; then
      feature_not_found "vnc-sasl"
    fi
    vnc_sasl=no
  fi
fi

##########################################
# fnmatch() probe, used for ACL routines
fnmatch="no"
cat > $TMPC << EOF
#include <fnmatch.h>
int main(void)
{
    fnmatch("foo", "foo", 0);
    return 0;
}
EOF
if compile_prog "" "" ; then
   fnmatch="yes"
fi

##########################################
# uuid_generate() probe, used for vdi block driver
if test "$uuid" != "no" ; then
  uuid_libs="-luuid"
  cat > $TMPC << EOF
#include <uuid/uuid.h>
int main(void)
{
    uuid_t my_uuid;
    uuid_generate(my_uuid);
    return 0;
}
EOF
  if compile_prog "" "$uuid_libs" ; then
    uuid="yes"
    libs_softmmu="$uuid_libs $libs_softmmu"
    libs_tools="$uuid_libs $libs_tools"
  else
    if test "$uuid" = "yes" ; then
      feature_not_found "uuid"
    fi
    uuid=no
  fi
fi

##########################################
# vde libraries probe
if test "$vde" != "no" ; then
  vde_libs="-lvdeplug"
  cat > $TMPC << EOF
#include <libvdeplug.h>
int main(void)
{
    struct vde_open_args a = {0, 0, 0};
    vde_open("", "", &a);
    return 0;
}
EOF
  if compile_prog "" "$vde_libs" ; then
    vde=yes
    libs_softmmu="$vde_libs $libs_softmmu"
    libs_tools="$vde_libs $libs_tools"
  else
    if test "$vde" = "yes" ; then
      feature_not_found "vde"
    fi
    vde=no
  fi
fi

##########################################
# Sound support libraries probe

audio_drv_probe()
{
    drv=$1
    hdr=$2
    lib=$3
    exp=$4
    cfl=$5
        cat > $TMPC << EOF
#include <$hdr>
int main(void) { $exp }
EOF
    if compile_prog "$cfl" "$lib" ; then
        :
    else
        echo
        echo "Error: $drv check failed"
        echo "Make sure to have the $drv libs and headers installed."
        echo
        exit 1
    fi
}

audio_drv_list=`echo "$audio_drv_list" | sed -e 's/,/ /g'`
for drv in $audio_drv_list; do
    case $drv in
    alsa)
    audio_drv_probe $drv alsa/asoundlib.h -lasound \
        "snd_pcm_t **handle; return snd_pcm_close(*handle);"
    libs_softmmu="-lasound $libs_softmmu"
    ;;

    fmod)
    if test -z $fmod_lib || test -z $fmod_inc; then
        echo
        echo "Error: You must specify path to FMOD library and headers"
        echo "Example: --fmod-inc=/path/include/fmod --fmod-lib=/path/lib/libfmod-3.74.so"
        echo
        exit 1
    fi
    audio_drv_probe $drv fmod.h $fmod_lib "return FSOUND_GetVersion();" "-I $fmod_inc"
    libs_softmmu="$fmod_lib $libs_softmmu"
    ;;

    esd)
    audio_drv_probe $drv esd.h -lesd 'return esd_play_stream(0, 0, "", 0);'
    libs_softmmu="-lesd $libs_softmmu"
    audio_pt_int="yes"
    ;;

    pa)
    audio_drv_probe $drv pulse/simple.h "-lpulse-simple -lpulse" \
        "pa_simple *s = NULL; pa_simple_free(s); return 0;"
    libs_softmmu="-lpulse -lpulse-simple $libs_softmmu"
    audio_pt_int="yes"
    ;;

    coreaudio)
      libs_softmmu="-framework CoreAudio $libs_softmmu"
    ;;

    dsound)
      libs_softmmu="-lole32 -ldxguid $libs_softmmu"
      audio_win_int="yes"
    ;;

    oss)
      libs_softmmu="$oss_lib $libs_softmmu"
    ;;

    sdl|wav)
    # XXX: Probes for CoreAudio, DirectSound, SDL(?)
    ;;

    winwave)
      libs_softmmu="-lwinmm $libs_softmmu"
      audio_win_int="yes"
    ;;

    *)
    echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
        echo
        echo "Error: Unknown driver '$drv' selected"
        echo "Possible drivers are: $audio_possible_drivers"
        echo
        exit 1
    }
    ;;
    esac
done

##########################################
# BrlAPI probe

if test "$brlapi" != "no" ; then
  brlapi_libs="-lbrlapi"
  cat > $TMPC << EOF
#include <brlapi.h>
int main( void ) { return brlapi__openConnection (NULL, NULL, NULL); }
EOF
  if compile_prog "" "$brlapi_libs" ; then
    brlapi=yes
    libs_softmmu="$brlapi_libs $libs_softmmu"
  else
    if test "$brlapi" = "yes" ; then
      feature_not_found "brlapi"
    fi
    brlapi=no
  fi
fi

##########################################
# curses probe
curses_list="-lncurses -lcurses"

if test "$curses" != "no" ; then
  curses_found=no
  cat > $TMPC << EOF
#include <curses.h>
#ifdef __OpenBSD__
#define resize_term resizeterm
#endif
int main(void) { resize_term(0, 0); return curses_version(); }
EOF
  for curses_lib in $curses_list; do
    if compile_prog "" "$curses_lib" ; then
      curses_found=yes
      libs_softmmu="$curses_lib $libs_softmmu"
      break
    fi
  done
  if test "$curses_found" = "yes" ; then
    curses=yes
  else
    if test "$curses" = "yes" ; then
      feature_not_found "curses"
    fi
    curses=no
  fi
fi

##########################################
# curl probe

if test "$curl" != "no" ; then
  cat > $TMPC << EOF
#include <curl/curl.h>
int main(void) { return curl_easy_init(); }
EOF
  curl_cflags=`curl-config --cflags 2>/dev/null`
  curl_libs=`curl-config --libs 2>/dev/null`
  if compile_prog "$curl_cflags" "$curl_libs" ; then
    curl=yes
    libs_tools="$curl_libs $libs_tools"
    libs_softmmu="$curl_libs $libs_softmmu"
  else
    if test "$curl" = "yes" ; then
      feature_not_found "curl"
    fi
    curl=no
  fi
fi # test "$curl"

##########################################
# check framework probe

if test "$check_utests" != "no" ; then
  cat > $TMPC << EOF
#include <check.h>
int main(void) { suite_create("qemu test"); return 0; }
EOF
  check_libs=`$pkgconfig --libs check`
  if compile_prog "" $check_libs ; then
    check_utests=yes
    libs_tools="$check_libs $libs_tools"
  else
    if test "$check_utests" = "yes" ; then
      feature_not_found "check"
    fi
    check_utests=no
  fi
fi # test "$check_utests"

##########################################
# bluez support probe
if test "$bluez" != "no" ; then
  cat > $TMPC << EOF
#include <bluetooth/bluetooth.h>
int main(void) { return bt_error(0); }
EOF
  bluez_cflags=`$pkgconfig --cflags bluez 2> /dev/null`
  bluez_libs=`$pkgconfig --libs bluez 2> /dev/null`
  if compile_prog "$bluez_cflags" "$bluez_libs" ; then
    bluez=yes
    libs_softmmu="$bluez_libs $libs_softmmu"
  else
    if test "$bluez" = "yes" ; then
      feature_not_found "bluez"
    fi
    bluez="no"
  fi
fi

##########################################
# kvm probe
if test "$kvm" != "no" ; then
    cat > $TMPC <<EOF
#include <linux/kvm.h>
#if !defined(KVM_API_VERSION) || KVM_API_VERSION < 12 || KVM_API_VERSION > 12
#error Invalid KVM version
#endif
#if !defined(KVM_CAP_USER_MEMORY)
#error Missing KVM capability KVM_CAP_USER_MEMORY
#endif
#if !defined(KVM_CAP_SET_TSS_ADDR)
#error Missing KVM capability KVM_CAP_SET_TSS_ADDR
#endif
#if !defined(KVM_CAP_DESTROY_MEMORY_REGION_WORKS)
#error Missing KVM capability KVM_CAP_DESTROY_MEMORY_REGION_WORKS
#endif
int main(void) { return 0; }
EOF
  if test "$kerneldir" != "" ; then
      kvm_cflags=-I"$kerneldir"/include
      if test \( "$cpu" = "i386" -o "$cpu" = "x86_64" \) \
         -a -d "$kerneldir/arch/x86/include" ; then
            kvm_cflags="$kvm_cflags -I$kerneldir/arch/x86/include"
	elif test "$cpu" = "ppc" -a -d "$kerneldir/arch/powerpc/include" ; then
	    kvm_cflags="$kvm_cflags -I$kerneldir/arch/powerpc/include"
	elif test "$cpu" = "s390x" -a -d "$kerneldir/arch/s390/include" ; then
	    kvm_cflags="$kvm_cflags -I$kerneldir/arch/s390/include"
        elif test -d "$kerneldir/arch/$cpu/include" ; then
            kvm_cflags="$kvm_cflags -I$kerneldir/arch/$cpu/include"
      fi
  else
    kvm_cflags=`pkg-config --cflags kvm-kmod 2> /dev/null`
  fi
  if compile_prog "$kvm_cflags" "" ; then
    kvm=yes
    cat > $TMPC <<EOF
#include <linux/kvm_para.h>
int main(void) { return 0; }
EOF
    if compile_prog "$kvm_cflags" "" ; then
      kvm_para=yes
    fi
  else
    if test "$kvm" = "yes" ; then
      if [ -x "`which awk 2>/dev/null`" ] && \
         [ -x "`which grep 2>/dev/null`" ]; then
        kvmerr=`LANG=C $cc $QEMU_CFLAGS -o $TMPE $kvm_cflags $TMPC 2>&1 \
	| grep "error: " \
	| awk -F "error: " '{if (NR>1) printf(", "); printf("%s",$2);}'`
        if test "$kvmerr" != "" ; then
          echo -e "${kvmerr}\n\
      NOTE: To enable KVM support, update your kernel to 2.6.29+ or install \
  recent kvm-kmod from http://sourceforge.net/projects/kvm."
        fi
      fi
      feature_not_found "kvm"
    fi
    kvm=no
  fi
fi

##########################################
# pthread probe
PTHREADLIBS_LIST="-lpthread -lpthreadGC2"

pthread=no
cat > $TMPC << EOF
#include <pthread.h>
int main(void) { pthread_create(0,0,0,0); return 0; }
EOF
for pthread_lib in $PTHREADLIBS_LIST; do
  if compile_prog "" "$pthread_lib" ; then
    pthread=yes
    LIBS="$pthread_lib $LIBS"
    break
  fi
done

if test "$mingw32" != yes -a "$pthread" = no; then
  echo
  echo "Error: pthread check failed"
  echo "Make sure to have the pthread libs and headers installed."
  echo
  exit 1
fi

##########################################
# linux-aio probe

if test "$linux_aio" != "no" ; then
  cat > $TMPC <<EOF
#include <libaio.h>
#include <sys/eventfd.h>
int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
EOF
  if compile_prog "" "-laio" ; then
    linux_aio=yes
    LIBS="$LIBS -laio"
  else
    if test "$linux_aio" = "yes" ; then
      feature_not_found "linux AIO"
    fi
    linux_aio=no
  fi
fi

##########################################
# iovec probe
cat > $TMPC <<EOF
#include <sys/types.h>
#include <sys/uio.h>
#include <unistd.h>
int main(void) { struct iovec iov; return 0; }
EOF
iovec=no
if compile_prog "" "" ; then
  iovec=yes
fi

##########################################
# preadv probe
cat > $TMPC <<EOF
#include <sys/types.h>
#include <sys/uio.h>
#include <unistd.h>
int main(void) { preadv; }
EOF
preadv=no
if compile_prog "" "" ; then
  preadv=yes
fi

##########################################
# fdt probe
if test "$fdt" != "no" ; then
  fdt_libs="-lfdt"
  cat > $TMPC << EOF
int main(void) { return 0; }
EOF
  if compile_prog "" "$fdt_libs" ; then
    fdt=yes
    libs_softmmu="$fdt_libs $libs_softmmu"
  else
    if test "$fdt" = "yes" ; then
      feature_not_found "fdt"
    fi
    fdt=no
  fi
fi

#
# Check for xxxat() functions when we are building linux-user
# emulator.  This is done because older glibc versions don't
# have syscall stubs for these implemented.
#
atfile=no
cat > $TMPC << EOF
#define _ATFILE_SOURCE
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>

int
main(void)
{
	/* try to unlink nonexisting file */
	return (unlinkat(AT_FDCWD, "nonexistent_file", 0));
}
EOF
if compile_prog "" "" ; then
  atfile=yes
fi

# Check for inotify functions when we are building linux-user
# emulator.  This is done because older glibc versions don't
# have syscall stubs for these implemented.  In that case we
# don't provide them even if kernel supports them.
#
inotify=no
cat > $TMPC << EOF
#include <sys/inotify.h>

int
main(void)
{
	/* try to start inotify */
	return inotify_init();
}
EOF
if compile_prog "" "" ; then
  inotify=yes
fi

# check if utimensat and futimens are supported
utimens=no
cat > $TMPC << EOF
#define _ATFILE_SOURCE
#define _GNU_SOURCE
#include <stddef.h>
#include <fcntl.h>

int main(void)
{
    utimensat(AT_FDCWD, "foo", NULL, 0);
    futimens(0, NULL);
    return 0;
}
EOF
if compile_prog "" "" ; then
  utimens=yes
fi

# check if pipe2 is there
pipe2=no
cat > $TMPC << EOF
#define _GNU_SOURCE
#include <unistd.h>
#include <fcntl.h>

int main(void)
{
    int pipefd[2];
    pipe2(pipefd, O_CLOEXEC);
    return 0;
}
EOF
if compile_prog "" "" ; then
  pipe2=yes
fi

# check if accept4 is there
accept4=no
cat > $TMPC << EOF
#define _GNU_SOURCE
#include <sys/socket.h>
#include <stddef.h>

int main(void)
{
    accept4(0, NULL, NULL, SOCK_CLOEXEC);
    return 0;
}
EOF
if compile_prog "" "" ; then
  accept4=yes
fi

# check if tee/splice is there. vmsplice was added same time.
splice=no
cat > $TMPC << EOF
#define _GNU_SOURCE
#include <unistd.h>
#include <fcntl.h>
#include <limits.h>

int main(void)
{
    int len, fd;
    len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
    splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
    return 0;
}
EOF
if compile_prog "" "" ; then
  splice=yes
fi

# check if eventfd is supported
eventfd=no
cat > $TMPC << EOF
#include <sys/eventfd.h>

int main(void)
{
    int efd = eventfd(0, 0);
    return 0;
}
EOF
if compile_prog "" "" ; then
  eventfd=yes
fi

# check for fallocate
fallocate=no
cat > $TMPC << EOF
#include <fcntl.h>

int main(void)
{
    fallocate(0, 0, 0, 0);
    return 0;
}
EOF
if compile_prog "$ARCH_CFLAGS" "" ; then
  fallocate=yes
fi

# check for dup3
dup3=no
cat > $TMPC << EOF
#include <unistd.h>

int main(void)
{
    dup3(0, 0, 0);
    return 0;
}
EOF
if compile_prog "" "" ; then
  dup3=yes
fi

# Check if tools are available to build documentation.
if test "$docs" != "no" ; then
  if test -x "`which texi2html 2>/dev/null`" -a \
          -x "`which pod2man 2>/dev/null`" ; then
    docs=yes
  else
    if test "$docs" = "yes" ; then
      feature_not_found "docs"
    fi
    docs=no
  fi
fi

# Search for bswap_32 function
byteswap_h=no
cat > $TMPC << EOF
#include <byteswap.h>
int main(void) { return bswap_32(0); }
EOF
if compile_prog "" "" ; then
  byteswap_h=yes
fi

# Search for bswap_32 function
bswap_h=no
cat > $TMPC << EOF
#include <sys/endian.h>
#include <sys/types.h>
#include <machine/bswap.h>
int main(void) { return bswap32(0); }
EOF
if compile_prog "" "" ; then
  bswap_h=yes
fi

##########################################
# Do we need librt
cat > $TMPC <<EOF
#include <signal.h>
#include <time.h>
int main(void) { clockid_t id; return clock_gettime(id, NULL); }
EOF

if compile_prog "" "" ; then
  :
elif compile_prog "" "-lrt" ; then
  LIBS="-lrt $LIBS"
fi

if test "$darwin" != "yes" -a "$mingw32" != "yes" -a "$solaris" != yes -a \
        "$aix" != "yes" ; then
    libs_softmmu="-lutil $libs_softmmu"
fi

##########################################
# check if the compiler defines offsetof

need_offsetof=yes
cat > $TMPC << EOF
#include <stddef.h>
int main(void) { struct s { int f; }; return offsetof(struct s, f); }
EOF
if compile_prog "" "" ; then
    need_offsetof=no
fi

##########################################
# check if the compiler understands attribute warn_unused_result
#
# This could be smarter, but gcc -Werror does not error out even when warning
# about attribute warn_unused_result

gcc_attribute_warn_unused_result=no
cat > $TMPC << EOF
#if defined(__GNUC__) && (__GNUC__ < 4) && defined(__GNUC_MINOR__) && (__GNUC__ < 4)
#error gcc 3.3 or older
#endif
int main(void) { return 0;}
EOF
if compile_prog "" ""; then
    gcc_attribute_warn_unused_result=yes
fi

##########################################
# check if we have fdatasync

fdatasync=no
cat > $TMPC << EOF
#include <unistd.h>
int main(void) { return fdatasync(0); }
EOF
if compile_prog "" "" ; then
    fdatasync=yes
fi

# End of CC checks
# After here, no more $cc or $ld runs

if test "$debug" = "no" ; then
  CFLAGS="-O2 $CFLAGS"
fi

# Consult white-list to determine whether to enable werror
# by default.  Only enable by default for git builds
z_version=`cut -f3 -d. $source_path/VERSION`

if test -z "$werror" ; then
    if test "$z_version" = "50" -a \
        "$linux" = "yes" ; then
        werror="yes"
    else
        werror="no"
    fi
fi

# Disable zero malloc errors for official releases unless explicitly told to
# enable/disable
if test -z "$zero_malloc" ; then
    if test "$z_version" = "50" ; then
	zero_malloc="no"
    else
	zero_malloc="yes"
    fi
fi

if test "$werror" = "yes" ; then
    QEMU_CFLAGS="-Werror $QEMU_CFLAGS"
fi

if test "$solaris" = "no" ; then
    if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
        LDFLAGS="-Wl,--warn-common $LDFLAGS"
    fi
fi

if test "$mingw32" = "yes" ; then
  if test -z "$prefix" ; then
      prefix="c:/Program Files/Qemu"
  fi
  mansuffix=""
  datasuffix=""
  docsuffix=""
  binsuffix=""
else
  if test -z "$prefix" ; then
      prefix="/usr/local"
  fi
  mansuffix="/share/man"
  datasuffix="/share/qemu"
  docsuffix="/share/doc/qemu"
  binsuffix="/bin"
fi

echo "Install prefix    $prefix"
echo "BIOS directory    $prefix$datasuffix"
echo "binary directory  $prefix$binsuffix"
if test "$mingw32" = "no" ; then
echo "Manual directory  $prefix$mansuffix"
echo "ELF interp prefix $interp_prefix"
fi
echo "Source path       $source_path"
echo "C compiler        $cc"
echo "Host C compiler   $host_cc"
echo "CFLAGS            $CFLAGS"
echo "QEMU_CFLAGS       $QEMU_CFLAGS"
echo "LDFLAGS           $LDFLAGS"
echo "make              $make"
echo "install           $install"
echo "host CPU          $cpu"
echo "host big endian   $bigendian"
echo "target list       $target_list"
echo "tcg debug enabled $debug_tcg"
echo "gprof enabled     $gprof"
echo "sparse enabled    $sparse"
echo "strip binaries    $strip_opt"
echo "profiler          $profiler"
echo "static build      $static"
echo "-Werror enabled   $werror"
if test "$darwin" = "yes" ; then
    echo "Cocoa support     $cocoa"
fi
echo "SDL support       $sdl"
echo "curses support    $curses"
echo "curl support      $curl"
echo "check support     $check_utests"
echo "mingw32 support   $mingw32"
echo "Audio drivers     $audio_drv_list"
echo "Extra audio cards $audio_card_list"
echo "Block whitelist   $block_drv_whitelist"
echo "Mixer emulation   $mixemu"
echo "VNC TLS support   $vnc_tls"
echo "VNC SASL support  $vnc_sasl"
if test -n "$sparc_cpu"; then
    echo "Target Sparc Arch $sparc_cpu"
fi
echo "xen support       $xen"
echo "brlapi support    $brlapi"
echo "bluez  support    $bluez"
echo "Documentation     $docs"
[ ! -z "$uname_release" ] && \
echo "uname -r          $uname_release"
echo "NPTL support      $nptl"
echo "GUEST_BASE        $guest_base"
echo "PIE user targets  $user_pie"
echo "vde support       $vde"
echo "IO thread         $io_thread"
echo "Linux AIO support $linux_aio"
echo "Install blobs     $blobs"
echo "KVM support       $kvm"
echo "fdt support       $fdt"
echo "preadv support    $preadv"
echo "fdatasync         $fdatasync"
echo "uuid support      $uuid"

if test $sdl_too_old = "yes"; then
echo "-> Your SDL version is too old - please upgrade to have SDL support"
fi

config_host_mak="config-host.mak"
config_host_ld="config-host.ld"

echo "# Automatically generated by configure - do not modify" > $config_host_mak
printf "# Configured with:" >> $config_host_mak
printf " '%s'" "$0" "$@" >> $config_host_mak
echo >> $config_host_mak

echo "CONFIG_QEMU_SHAREDIR=\"$prefix$datasuffix\"" >> $config_host_mak

case "$cpu" in
  i386|x86_64|alpha|cris|hppa|ia64|m68k|microblaze|mips|mips64|ppc|ppc64|s390|s390x|sparc|sparc64)
    ARCH=$cpu
  ;;
  armv4b|armv4l)
    ARCH=arm
  ;;
  *)
    echo "Unsupported CPU = $cpu"
    exit 1
  ;;
esac
echo "ARCH=$ARCH" >> $config_host_mak
if test "$debug_tcg" = "yes" ; then
  echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
fi
if test "$debug" = "yes" ; then
  echo "CONFIG_DEBUG_EXEC=y" >> $config_host_mak
fi
if test "$strip_opt" = "yes" ; then
  echo "STRIP_OPT=-s" >> $config_host_mak
fi
if test "$bigendian" = "yes" ; then
  echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
fi
echo "HOST_LONG_BITS=$hostlongbits" >> $config_host_mak
if test "$mingw32" = "yes" ; then
  echo "CONFIG_WIN32=y" >> $config_host_mak
else
  echo "CONFIG_POSIX=y" >> $config_host_mak
fi

if test "$linux" = "yes" ; then
  echo "CONFIG_LINUX=y" >> $config_host_mak
fi

if test "$darwin" = "yes" ; then
  echo "CONFIG_DARWIN=y" >> $config_host_mak
fi

if test "$aix" = "yes" ; then
  echo "CONFIG_AIX=y" >> $config_host_mak
fi

if test "$solaris" = "yes" ; then
  echo "CONFIG_SOLARIS=y" >> $config_host_mak
  echo "CONFIG_SOLARIS_VERSION=$solarisrev" >> $config_host_mak
  if test "$needs_libsunmath" = "yes" ; then
    echo "CONFIG_NEEDS_LIBSUNMATH=y" >> $config_host_mak
  fi
fi
if test "$static" = "yes" ; then
  echo "CONFIG_STATIC=y" >> $config_host_mak
  LDFLAGS="-static $LDFLAGS"
fi
if test $profiler = "yes" ; then
  echo "CONFIG_PROFILER=y" >> $config_host_mak
fi
if test "$slirp" = "yes" ; then
  echo "CONFIG_SLIRP=y" >> $config_host_mak
  QEMU_CFLAGS="-I\$(SRC_PATH)/slirp $QEMU_CFLAGS"
fi
if test "$vde" = "yes" ; then
  echo "CONFIG_VDE=y" >> $config_host_mak
fi
for card in $audio_card_list; do
    def=CONFIG_`echo $card | tr '[:lower:]' '[:upper:]'`
    echo "$def=y" >> $config_host_mak
done
echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
for drv in $audio_drv_list; do
    def=CONFIG_`echo $drv | tr '[:lower:]' '[:upper:]'`
    echo "$def=y" >> $config_host_mak
    if test "$drv" = "fmod"; then
        echo "FMOD_CFLAGS=-I$fmod_inc" >> $config_host_mak
    fi
done
if test "$audio_pt_int" = "yes" ; then
  echo "CONFIG_AUDIO_PT_INT=y" >> $config_host_mak
fi
if test "$audio_win_int" = "yes" ; then
  echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
fi
echo "CONFIG_BDRV_WHITELIST=$block_drv_whitelist" >> $config_host_mak
if test "$mixemu" = "yes" ; then
  echo "CONFIG_MIXEMU=y" >> $config_host_mak
fi
if test "$vnc_tls" = "yes" ; then
  echo "CONFIG_VNC_TLS=y" >> $config_host_mak
  echo "VNC_TLS_CFLAGS=$vnc_tls_cflags" >> $config_host_mak
fi
if test "$vnc_sasl" = "yes" ; then
  echo "CONFIG_VNC_SASL=y" >> $config_host_mak
  echo "VNC_SASL_CFLAGS=$vnc_sasl_cflags" >> $config_host_mak
fi
if test "$fnmatch" = "yes" ; then
  echo "CONFIG_FNMATCH=y" >> $config_host_mak
fi
if test "$uuid" = "yes" ; then
  echo "CONFIG_UUID=y" >> $config_host_mak
fi
qemu_version=`head $source_path/VERSION`
echo "VERSION=$qemu_version" >>$config_host_mak
echo "PKGVERSION=$pkgversion" >>$config_host_mak
echo "SRC_PATH=$source_path" >> $config_host_mak
echo "TARGET_DIRS=$target_list" >> $config_host_mak
if [ "$docs" = "yes" ] ; then
  echo "BUILD_DOCS=yes" >> $config_host_mak
fi
if test "$sdl" = "yes" ; then
  echo "CONFIG_SDL=y" >> $config_host_mak
  echo "SDL_CFLAGS=$sdl_cflags" >> $config_host_mak
fi
if test "$cocoa" = "yes" ; then
  echo "CONFIG_COCOA=y" >> $config_host_mak
fi
if test "$curses" = "yes" ; then
  echo "CONFIG_CURSES=y" >> $config_host_mak
fi
if test "$atfile" = "yes" ; then
  echo "CONFIG_ATFILE=y" >> $config_host_mak
fi
if test "$utimens" = "yes" ; then
  echo "CONFIG_UTIMENSAT=y" >> $config_host_mak
fi
if test "$pipe2" = "yes" ; then
  echo "CONFIG_PIPE2=y" >> $config_host_mak
fi
if test "$accept4" = "yes" ; then
  echo "CONFIG_ACCEPT4=y" >> $config_host_mak
fi
if test "$splice" = "yes" ; then
  echo "CONFIG_SPLICE=y" >> $config_host_mak
fi
if test "$eventfd" = "yes" ; then
  echo "CONFIG_EVENTFD=y" >> $config_host_mak
fi
if test "$fallocate" = "yes" ; then
  echo "CONFIG_FALLOCATE=y" >> $config_host_mak
fi
if test "$dup3" = "yes" ; then
  echo "CONFIG_DUP3=y" >> $config_host_mak
fi
if test "$inotify" = "yes" ; then
  echo "CONFIG_INOTIFY=y" >> $config_host_mak
fi
if test "$byteswap_h" = "yes" ; then
  echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
fi
if test "$bswap_h" = "yes" ; then
  echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
fi
if test "$curl" = "yes" ; then
  echo "CONFIG_CURL=y" >> $config_host_mak
  echo "CURL_CFLAGS=$curl_cflags" >> $config_host_mak
fi
if test "$brlapi" = "yes" ; then
  echo "CONFIG_BRLAPI=y" >> $config_host_mak
fi
if test "$bluez" = "yes" ; then
  echo "CONFIG_BLUEZ=y" >> $config_host_mak
  echo "BLUEZ_CFLAGS=$bluez_cflags" >> $config_host_mak
fi
if test "$xen" = "yes" ; then
  echo "CONFIG_XEN=y" >> $config_host_mak
fi
if test "$io_thread" = "yes" ; then
  echo "CONFIG_IOTHREAD=y" >> $config_host_mak
fi
if test "$linux_aio" = "yes" ; then
  echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
fi
if test "$blobs" = "yes" ; then
  echo "INSTALL_BLOBS=yes" >> $config_host_mak
fi
if test "$iovec" = "yes" ; then
  echo "CONFIG_IOVEC=y" >> $config_host_mak
fi
if test "$preadv" = "yes" ; then
  echo "CONFIG_PREADV=y" >> $config_host_mak
fi
if test "$fdt" = "yes" ; then
  echo "CONFIG_FDT=y" >> $config_host_mak
fi
if test "$need_offsetof" = "yes" ; then
  echo "CONFIG_NEED_OFFSETOF=y" >> $config_host_mak
fi
if test "$gcc_attribute_warn_unused_result" = "yes" ; then
  echo "CONFIG_GCC_ATTRIBUTE_WARN_UNUSED_RESULT=y" >> $config_host_mak
fi
if test "$fdatasync" = "yes" ; then
  echo "CONFIG_FDATASYNC=y" >> $config_host_mak
fi

# XXX: suppress that
if [ "$bsd" = "yes" ] ; then
  echo "CONFIG_BSD=y" >> $config_host_mak
fi

echo "CONFIG_UNAME_RELEASE=\"$uname_release\"" >> $config_host_mak

if test "$zero_malloc" = "yes" ; then
  echo "CONFIG_ZERO_MALLOC=y" >> $config_host_mak
fi

# USB host support
case "$usb" in
linux)
  echo "HOST_USB=linux" >> $config_host_mak
;;
bsd)
  echo "HOST_USB=bsd" >> $config_host_mak
;;
*)
  echo "HOST_USB=stub" >> $config_host_mak
;;
esac

tools=
if test `expr "$target_list" : ".*softmmu.*"` != 0 ; then
  tools="qemu-img\$(EXESUF) qemu-io\$(EXESUF) $tools"
  if [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" ] ; then
      tools="qemu-nbd\$(EXESUF) $tools"
    if [ "$check_utests" = "yes" ]; then
      tools="check-qint check-qstring check-qdict check-qlist $tools"
      tools="check-qfloat check-qjson $tools"
    fi
  fi
fi
echo "TOOLS=$tools" >> $config_host_mak

# Mac OS X ships with a broken assembler
roms=
if test \( "$cpu" = "i386" -o "$cpu" = "x86_64" \) -a \
        "$targetos" != "Darwin" -a "$targetos" != "SunOS" -a \
        `expr "$target_list" : ".*softmmu.*"` != 0 ; then
  roms="optionrom"
fi
echo "ROMS=$roms" >> $config_host_mak

echo "prefix=$prefix" >> $config_host_mak
echo "bindir=\${prefix}$binsuffix" >> $config_host_mak
echo "mandir=\${prefix}$mansuffix" >> $config_host_mak
echo "datadir=\${prefix}$datasuffix" >> $config_host_mak
echo "docdir=\${prefix}$docsuffix" >> $config_host_mak
echo "MAKE=$make" >> $config_host_mak
echo "INSTALL=$install" >> $config_host_mak
echo "INSTALL_DIR=$install -d -m0755 -p" >> $config_host_mak
echo "INSTALL_DATA=$install -m0644 -p" >> $config_host_mak
echo "INSTALL_PROG=$install -m0755 -p" >> $config_host_mak
echo "CC=$cc" >> $config_host_mak
echo "HOST_CC=$host_cc" >> $config_host_mak
if test "$sparse" = "yes" ; then
  echo "CC      := REAL_CC=\"\$(CC)\" cgcc"       >> $config_host_mak
  echo "HOST_CC := REAL_CC=\"\$(HOST_CC)\" cgcc"  >> $config_host_mak
  echo "QEMU_CFLAGS  += -Wbitwise -Wno-transparent-union -Wno-old-initializer -Wno-non-pointer-null" >> $config_host_mak
fi
echo "AR=$ar" >> $config_host_mak
echo "OBJCOPY=$objcopy" >> $config_host_mak
echo "LD=$ld" >> $config_host_mak
echo "CFLAGS=$CFLAGS" >> $config_host_mak
echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
echo "HELPER_CFLAGS=$helper_cflags" >> $config_host_mak
echo "LDFLAGS=$LDFLAGS" >> $config_host_mak
echo "ARLIBS_BEGIN=$arlibs_begin" >> $config_host_mak
echo "ARLIBS_END=$arlibs_end" >> $config_host_mak
echo "LIBS+=$LIBS" >> $config_host_mak
echo "LIBS_TOOLS+=$libs_tools" >> $config_host_mak
echo "EXESUF=$EXESUF" >> $config_host_mak

# generate list of library paths for linker script

$ld --verbose -v 2> /dev/null | grep SEARCH_DIR > ${config_host_ld}

if test -f ${config_host_ld}~ ; then
  if cmp -s $config_host_ld ${config_host_ld}~ ; then
    mv ${config_host_ld}~ $config_host_ld
  else
    rm ${config_host_ld}~
  fi
fi

for target in $target_list; do
target_dir="$target"
config_target_mak=$target_dir/config-target.mak
target_arch2=`echo $target | cut -d '-' -f 1`
target_bigendian="no"

case "$target_arch2" in
  armeb|m68k|microblaze|mips|mipsn32|mips64|ppc|ppcemb|ppc64|ppc64abi32|s390x|sh4eb|sparc|sparc64|sparc32plus)
  target_bigendian=yes
  ;;
esac
target_softmmu="no"
target_user_only="no"
target_linux_user="no"
target_darwin_user="no"
target_bsd_user="no"
case "$target" in
  ${target_arch2}-softmmu)
    target_softmmu="yes"
    ;;
  ${target_arch2}-linux-user)
    if test "$linux" != "yes" ; then
      echo "ERROR: Target '$target' is only available on a Linux host"
      exit 1
    fi
    target_user_only="yes"
    target_linux_user="yes"
    ;;
  ${target_arch2}-darwin-user)
    if test "$darwin" != "yes" ; then
      echo "ERROR: Target '$target' is only available on a Darwin host"
      exit 1
    fi
    target_user_only="yes"
    target_darwin_user="yes"
    ;;
  ${target_arch2}-bsd-user)
    if test "$bsd" != "yes" ; then
      echo "ERROR: Target '$target' is only available on a BSD host"
      exit 1
    fi
    target_user_only="yes"
    target_bsd_user="yes"
    ;;
  *)
    echo "ERROR: Target '$target' not recognised"
    exit 1
    ;;
esac

mkdir -p $target_dir
mkdir -p $target_dir/fpu
mkdir -p $target_dir/tcg
mkdir -p $target_dir/ide
if test "$target" = "arm-linux-user" -o "$target" = "armeb-linux-user" -o "$target" = "arm-bsd-user" -o "$target" = "armeb-bsd-user" ; then
  mkdir -p $target_dir/nwfpe
fi

#
# don't use ln -sf as not all "ln -sf" over write the file/link
#
rm -f $target_dir/Makefile
ln -s $source_path/Makefile.target $target_dir/Makefile


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

bflt="no"
elfload32="no"
target_nptl="no"
interp_prefix1=`echo "$interp_prefix" | sed "s/%M/$target_arch2/g"`
echo "CONFIG_QEMU_PREFIX=\"$interp_prefix1\"" >> $config_target_mak
gdb_xml_files=""

TARGET_ARCH="$target_arch2"
TARGET_BASE_ARCH=""
TARGET_ABI_DIR=""

case "$target_arch2" in
  i386)
    target_phys_bits=32
  ;;
  x86_64)
    TARGET_BASE_ARCH=i386
    target_phys_bits=64
  ;;
  alpha)
    target_phys_bits=64
  ;;
  arm|armeb)
    TARGET_ARCH=arm
    bflt="yes"
    target_nptl="yes"
    gdb_xml_files="arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml"
    target_phys_bits=32
  ;;
  cris)
    target_nptl="yes"
    target_phys_bits=32
  ;;
  m68k)
    bflt="yes"
    gdb_xml_files="cf-core.xml cf-fp.xml"
    target_phys_bits=32
  ;;
  microblaze)
    bflt="yes"
    target_nptl="yes"
    target_phys_bits=32
  ;;
  mips|mipsel)
    TARGET_ARCH=mips
    echo "TARGET_ABI_MIPSO32=y" >> $config_target_mak
    target_nptl="yes"
    target_phys_bits=64
  ;;
  mipsn32|mipsn32el)
    TARGET_ARCH=mipsn32
    TARGET_BASE_ARCH=mips
    echo "TARGET_ABI_MIPSN32=y" >> $config_target_mak
    target_phys_bits=64
  ;;
  mips64|mips64el)
    TARGET_ARCH=mips64
    TARGET_BASE_ARCH=mips
    echo "TARGET_ABI_MIPSN64=y" >> $config_target_mak
    target_phys_bits=64
  ;;
  ppc)
    gdb_xml_files="power-core.xml power-fpu.xml power-altivec.xml power-spe.xml"
    target_phys_bits=32
    target_nptl="yes"
  ;;
  ppcemb)
    TARGET_BASE_ARCH=ppc
    TARGET_ABI_DIR=ppc
    gdb_xml_files="power-core.xml power-fpu.xml power-altivec.xml power-spe.xml"
    target_phys_bits=64
    target_nptl="yes"
  ;;
  ppc64)
    TARGET_BASE_ARCH=ppc
    TARGET_ABI_DIR=ppc
    gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml"
    target_phys_bits=64
  ;;
  ppc64abi32)
    TARGET_ARCH=ppc64
    TARGET_BASE_ARCH=ppc
    TARGET_ABI_DIR=ppc
    echo "TARGET_ABI32=y" >> $config_target_mak
    gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml"
    target_phys_bits=64
  ;;
  sh4|sh4eb)
    TARGET_ARCH=sh4
    bflt="yes"
    target_nptl="yes"
    target_phys_bits=32
  ;;
  sparc)
    target_phys_bits=64
  ;;
  sparc64)
    TARGET_BASE_ARCH=sparc
    elfload32="yes"
    target_phys_bits=64
  ;;
  sparc32plus)
    TARGET_ARCH=sparc64
    TARGET_BASE_ARCH=sparc
    TARGET_ABI_DIR=sparc
    echo "TARGET_ABI32=y" >> $config_target_mak
    target_phys_bits=64
  ;;
  s390x)
    target_phys_bits=64
  ;;
  *)
    echo "Unsupported target CPU"
    exit 1
  ;;
esac
echo "TARGET_ARCH=$TARGET_ARCH" >> $config_target_mak
target_arch_name="`echo $TARGET_ARCH | tr '[:lower:]' '[:upper:]'`"
echo "TARGET_$target_arch_name=y" >> $config_target_mak
echo "TARGET_ARCH2=$target_arch2" >> $config_target_mak
# TARGET_BASE_ARCH needs to be defined after TARGET_ARCH
if [ "$TARGET_BASE_ARCH" = "" ]; then
  TARGET_BASE_ARCH=$TARGET_ARCH
fi
echo "TARGET_BASE_ARCH=$TARGET_BASE_ARCH" >> $config_target_mak
if [ "$TARGET_ABI_DIR" = "" ]; then
  TARGET_ABI_DIR=$TARGET_ARCH
fi
echo "TARGET_ABI_DIR=$TARGET_ABI_DIR" >> $config_target_mak
if [ $target_phys_bits -lt $hostlongbits ] ; then
  target_phys_bits=$hostlongbits
fi
case "$target_arch2" in
  i386|x86_64)
    if test "$xen" = "yes" -a "$target_softmmu" = "yes" ; then
      echo "CONFIG_XEN=y" >> $config_target_mak
    fi
esac
case "$target_arch2" in
  i386|x86_64|ppcemb|ppc|ppc64|s390x)
    # Make sure the target and host cpus are compatible
    if test "$kvm" = "yes" -a "$target_softmmu" = "yes" -a \
      \( "$target_arch2" = "$cpu" -o \
      \( "$target_arch2" = "ppcemb" -a "$cpu" = "ppc" \) -o \
      \( "$target_arch2" = "ppc64"  -a "$cpu" = "ppc" \) -o \
      \( "$target_arch2" = "x86_64" -a "$cpu" = "i386"   \) -o \
      \( "$target_arch2" = "i386"   -a "$cpu" = "x86_64" \) \) ; then
      echo "CONFIG_KVM=y" >> $config_target_mak
      echo "KVM_CFLAGS=$kvm_cflags" >> $config_target_mak
      if test "$kvm_para" = "yes"; then
        echo "CONFIG_KVM_PARA=y" >> $config_target_mak
      fi
    fi
esac
echo "TARGET_PHYS_ADDR_BITS=$target_phys_bits" >> $config_target_mak
if test "$target_bigendian" = "yes" ; then
  echo "TARGET_WORDS_BIGENDIAN=y" >> $config_target_mak
fi
if test "$target_softmmu" = "yes" ; then
  echo "CONFIG_SOFTMMU=y" >> $config_target_mak
  echo "LIBS+=$libs_softmmu" >> $config_target_mak
  echo "HWDIR=../libhw$target_phys_bits" >> $config_target_mak
  echo "subdir-$target: subdir-libhw$target_phys_bits" >> $config_host_mak
fi
if test "$target_user_only" = "yes" ; then
  echo "CONFIG_USER_ONLY=y" >> $config_target_mak
fi
if test "$target_linux_user" = "yes" ; then
  echo "CONFIG_LINUX_USER=y" >> $config_target_mak
fi
if test "$target_darwin_user" = "yes" ; then
  echo "CONFIG_DARWIN_USER=y" >> $config_target_mak
fi
list=""
if test ! -z "$gdb_xml_files" ; then
  for x in $gdb_xml_files; do
    list="$list $source_path/gdb-xml/$x"
  done
  echo "TARGET_XML_FILES=$list" >> $config_target_mak
fi

case "$target_arch2" in
  alpha|arm|armeb|m68k|microblaze|mips|mipsel|mipsn32|mipsn32el|mips64|mips64el|ppc|ppc64|ppc64abi32|ppcemb|s390x|sparc|sparc64|sparc32plus)
    echo "CONFIG_SOFTFLOAT=y" >> $config_target_mak
    ;;
  *)
    echo "CONFIG_NOSOFTFLOAT=y" >> $config_target_mak
    ;;
esac

if test "$target_user_only" = "yes" -a "$bflt" = "yes"; then
  echo "TARGET_HAS_BFLT=y" >> $config_target_mak
fi
if test "$target_user_only" = "yes" \
        -a "$nptl" = "yes" -a "$target_nptl" = "yes"; then
  echo "CONFIG_USE_NPTL=y" >> $config_target_mak
fi
# 32 bit ELF loader in addition to native 64 bit loader?
if test "$target_user_only" = "yes" -a "$elfload32" = "yes"; then
  echo "TARGET_HAS_ELFLOAD32=y" >> $config_target_mak
fi
if test "$target_user_only" = "yes" -a "$guest_base" = "yes"; then
  echo "CONFIG_USE_GUEST_BASE=y" >> $config_target_mak
fi
if test "$target_bsd_user" = "yes" ; then
  echo "CONFIG_BSD_USER=y" >> $config_target_mak
fi

# generate QEMU_CFLAGS/LDFLAGS for targets

cflags=""
ldflags=""

if test "$ARCH" = "sparc64" ; then
  cflags="-I\$(SRC_PATH)/tcg/sparc $cflags"
elif test "$ARCH" = "s390x" ; then
  cflags="-I\$(SRC_PATH)/tcg/s390 $cflags"
else
  cflags="-I\$(SRC_PATH)/tcg/\$(ARCH) $cflags"
fi
cflags="-I\$(SRC_PATH)/tcg $cflags"
cflags="-I\$(SRC_PATH)/fpu $cflags"

for i in $ARCH $TARGET_BASE_ARCH ; do
  case "$i" in
  alpha)
    echo "CONFIG_ALPHA_DIS=y"  >> $config_target_mak
  ;;
  arm)
    echo "CONFIG_ARM_DIS=y"  >> $config_target_mak
  ;;
  cris)
    echo "CONFIG_CRIS_DIS=y"  >> $config_target_mak
  ;;
  hppa)
    echo "CONFIG_HPPA_DIS=y"  >> $config_target_mak
  ;;
  i386|x86_64)
    echo "CONFIG_I386_DIS=y"  >> $config_target_mak
  ;;
  m68k)
    echo "CONFIG_M68K_DIS=y"  >> $config_target_mak
  ;;
  microblaze)
    echo "CONFIG_MICROBLAZE_DIS=y"  >> $config_target_mak
  ;;
  mips*)
    echo "CONFIG_MIPS_DIS=y"  >> $config_target_mak
  ;;
  ppc*)
    echo "CONFIG_PPC_DIS=y"  >> $config_target_mak
  ;;
  s390*)
    echo "CONFIG_S390_DIS=y"  >> $config_target_mak
  ;;
  sh4)
    echo "CONFIG_SH4_DIS=y"  >> $config_target_mak
  ;;
  sparc*)
    echo "CONFIG_SPARC_DIS=y"  >> $config_target_mak
  ;;
  esac
done

case "$ARCH" in
alpha)
  # Ensure there's only a single GP
  cflags="-msmall-data $cflags"
;;
ia64)
  cflags="-mno-sdata $cflags"
;;
esac

if test "$target_softmmu" = "yes" ; then
  case "$TARGET_BASE_ARCH" in
  arm)
    cflags="-DHAS_AUDIO $cflags"
  ;;
  i386|mips|ppc)
    cflags="-DHAS_AUDIO -DHAS_AUDIO_CHOICE $cflags"
  ;;
  esac
fi

if test "$target_user_only" = "yes" -a "$static" = "no" -a \
	"$user_pie" = "yes" ; then
  cflags="-fpie $cflags"
  ldflags="-pie $ldflags"
fi

if test "$target_softmmu" = "yes" -a \( \
        "$TARGET_ARCH" = "microblaze" -o \
        "$TARGET_ARCH" = "cris" \) ; then
  echo "CONFIG_NEED_MMU=y" >> $config_target_mak
fi

if test "$gprof" = "yes" ; then
  echo "TARGET_GPROF=yes" >> $config_target_mak
  if test "$target_linux_user" = "yes" ; then
    cflags="-p $cflags"
    ldflags="-p $ldflags"
  fi
  if test "$target_softmmu" = "yes" ; then
    ldflags="-p $ldflags"
    echo "GPROF_CFLAGS=-p" >> $config_target_mak
  fi
fi

linker_script="-Wl,-T../config-host.ld -Wl,-T,\$(SRC_PATH)/\$(ARCH).ld"
if test "$target_linux_user" = "yes" -o "$target_bsd_user" = "yes" ; then
  case "$ARCH" in
  sparc)
    # -static is used to avoid g1/g3 usage by the dynamic linker
    ldflags="$linker_script -static $ldflags"
    ;;
  ia64)
    ldflags="-Wl,-G0 $linker_script -static $ldflags"
    ;;
  i386|x86_64|ppc|ppc64|s390|sparc64|alpha|arm|m68k|mips|mips64)
    ldflags="$linker_script $ldflags"
    ;;
  esac
fi
if test "$target_softmmu" = "yes" ; then
  case "$ARCH" in
  ia64)
    ldflags="-Wl,-G0 $linker_script -static $ldflags"
    ;;
  esac
fi

echo "LDFLAGS+=$ldflags" >> $config_target_mak
echo "QEMU_CFLAGS+=$cflags" >> $config_target_mak

done # for target in $targets

# build tree in object directory if source path is different from current one
if test "$source_path_used" = "yes" ; then
    DIRS="tests tests/cris slirp audio block net pc-bios/optionrom"
    DIRS="$DIRS roms/seabios roms/vgabios"
    FILES="Makefile tests/Makefile"
    FILES="$FILES tests/cris/Makefile tests/cris/.gdbinit"
    FILES="$FILES tests/test-mmap.c"
    FILES="$FILES pc-bios/optionrom/Makefile pc-bios/keymaps pc-bios/video.x"
    FILES="$FILES roms/seabios/Makefile roms/vgabios/Makefile"
    for bios_file in $source_path/pc-bios/*.bin $source_path/pc-bios/*.dtb $source_path/pc-bios/openbios-*; do
        FILES="$FILES pc-bios/`basename $bios_file`"
    done
    for dir in $DIRS ; do
            mkdir -p $dir
    done
    # remove the link and recreate it, as not all "ln -sf" overwrite the link
    for f in $FILES ; do
        rm -f $f
        ln -s $source_path/$f $f
    done
fi

# temporary config to build submodules
for rom in seabios vgabios ; do
    config_mak=roms/$rom/config.mak
    echo "# Automatically generated by configure - do not modify" >> $config_mak
    echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
    echo "CC=$cc" >> $config_mak
    echo "BCC=bcc" >> $config_mak
    echo "CPP=${cross_prefix}cpp" >> $config_mak
    echo "OBJCOPY=objcopy" >> $config_mak
    echo "IASL=iasl" >> $config_mak
    echo "HOST_CC=$host_cc" >> $config_mak
    echo "LD=$ld" >> $config_mak
done

for hwlib in 32 64; do
  d=libhw$hwlib
  mkdir -p $d
  rm -f $d/Makefile
  ln -s $source_path/Makefile.hw $d/Makefile
  echo "QEMU_CFLAGS+=-DTARGET_PHYS_ADDR_BITS=$hwlib" >> $d/config.mak
done

d=libuser
mkdir -p $d
rm -f $d/Makefile
ln -s $source_path/Makefile.user $d/Makefile
if test "$static" = "no" -a "$user_pie" = "yes" ; then
  echo "QEMU_CFLAGS+=-fpie" > $d/config.mak
fi