configure

    esac
  fi
done

# Check whether --enable-polly was given.
if test "${enable_polly+set}" = set; then
  enableval=$enable_polly;
else
  enableval=default
fi

case "$enableval" in
  yes) ENABLE_POLLY=1
 ;;
  no)  ENABLE_POLLY=0
 ;;
  default) ENABLE_POLLY=1
 ;;
  *) { { echo "$as_me:$LINENO: error: Invalid setting for --enable-polly. Use \"yes\" or \"no\"" >&5
echo "$as_me: error: Invalid setting for --enable-polly. Use \"yes\" or \"no\"" >&2;}
   { (exit 1); exit 1; }; } ;;
esac


if (test -d ${srcdir}/tools/polly) && (test $ENABLE_POLLY -eq 1) ; then
  LLVM_HAS_POLLY=1

  subdirs="$subdirs tools/polly"

fi


# Make sure we can run config.sub.
$SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
  { { echo "$as_me:$LINENO: error: cannot run $SHELL $ac_aux_dir/config.sub" >&5
echo "$as_me: error: cannot run $SHELL $ac_aux_dir/config.sub" >&2;}
   { (exit 1); exit 1; }; }

{ echo "$as_me:$LINENO: checking build system type" >&5
echo $ECHO_N "checking build system type... $ECHO_C" >&6; }
if test "${ac_cv_build+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  ac_build_alias=$build_alias
test "x$ac_build_alias" = x &&
  ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
test "x$ac_build_alias" = x &&
  { { echo "$as_me:$LINENO: error: cannot guess build type; you must specify one" >&5
echo "$as_me: error: cannot guess build type; you must specify one" >&2;}
   { (exit 1); exit 1; }; }
ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
  { { echo "$as_me:$LINENO: error: $SHELL $ac_aux_dir/config.sub $ac_build_alias failed" >&5
echo "$as_me: error: $SHELL $ac_aux_dir/config.sub $ac_build_alias failed" >&2;}
   { (exit 1); exit 1; }; }

fi
{ echo "$as_me:$LINENO: result: $ac_cv_build" >&5
echo "${ECHO_T}$ac_cv_build" >&6; }
case $ac_cv_build in
*-*-*) ;;
*) { { echo "$as_me:$LINENO: error: invalid value of canonical build" >&5
echo "$as_me: error: invalid value of canonical build" >&2;}
   { (exit 1); exit 1; }; };;
esac
build=$ac_cv_build
ac_save_IFS=$IFS; IFS='-'
set x $ac_cv_build
shift
build_cpu=$1
build_vendor=$2
shift; shift
# Remember, the first character of IFS is used to create $*,
# except with old shells:
build_os=$*
IFS=$ac_save_IFS
case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac


{ echo "$as_me:$LINENO: checking host system type" >&5
echo $ECHO_N "checking host system type... $ECHO_C" >&6; }
if test "${ac_cv_host+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test "x$host_alias" = x; then
  ac_cv_host=$ac_cv_build
else
  ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
    { { echo "$as_me:$LINENO: error: $SHELL $ac_aux_dir/config.sub $host_alias failed" >&5
echo "$as_me: error: $SHELL $ac_aux_dir/config.sub $host_alias failed" >&2;}
   { (exit 1); exit 1; }; }
fi

fi
{ echo "$as_me:$LINENO: result: $ac_cv_host" >&5
echo "${ECHO_T}$ac_cv_host" >&6; }
case $ac_cv_host in
*-*-*) ;;
*) { { echo "$as_me:$LINENO: error: invalid value of canonical host" >&5
echo "$as_me: error: invalid value of canonical host" >&2;}
   { (exit 1); exit 1; }; };;
esac
host=$ac_cv_host
ac_save_IFS=$IFS; IFS='-'
set x $ac_cv_host
shift
host_cpu=$1
host_vendor=$2
shift; shift
# Remember, the first character of IFS is used to create $*,
# except with old shells:
host_os=$*
IFS=$ac_save_IFS
case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac


{ echo "$as_me:$LINENO: checking target system type" >&5
echo $ECHO_N "checking target system type... $ECHO_C" >&6; }
if test "${ac_cv_target+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test "x$target_alias" = x; then
  ac_cv_target=$ac_cv_host
else
  ac_cv_target=`$SHELL "$ac_aux_dir/config.sub" $target_alias` ||
    { { echo "$as_me:$LINENO: error: $SHELL $ac_aux_dir/config.sub $target_alias failed" >&5
echo "$as_me: error: $SHELL $ac_aux_dir/config.sub $target_alias failed" >&2;}
   { (exit 1); exit 1; }; }
fi

fi
{ echo "$as_me:$LINENO: result: $ac_cv_target" >&5
echo "${ECHO_T}$ac_cv_target" >&6; }
case $ac_cv_target in
*-*-*) ;;
*) { { echo "$as_me:$LINENO: error: invalid value of canonical target" >&5
echo "$as_me: error: invalid value of canonical target" >&2;}
   { (exit 1); exit 1; }; };;
esac
target=$ac_cv_target
ac_save_IFS=$IFS; IFS='-'
set x $ac_cv_target
shift
target_cpu=$1
target_vendor=$2
shift; shift
# Remember, the first character of IFS is used to create $*,
# except with old shells:
target_os=$*
IFS=$ac_save_IFS
case $target_os in *\ *) target_os=`echo "$target_os" | sed 's/ /-/g'`;; esac


# The aliases save the names the user supplied, while $host etc.
# will get canonicalized.
test -n "$target_alias" &&
  test "$program_prefix$program_suffix$program_transform_name" = \
    NONENONEs,x,x, &&
  program_prefix=${target_alias}-

{ echo "$as_me:$LINENO: checking type of operating system we're going to host on" >&5
echo $ECHO_N "checking type of operating system we're going to host on... $ECHO_C" >&6; }
if test "${llvm_cv_os_type+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  case $host in
  *-*-aix*)
    llvm_cv_link_all_option="-Wl,--whole-archive"
    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
    llvm_cv_os_type="AIX"
    llvm_cv_platform_type="Unix" ;;
  *-*-irix*)
    llvm_cv_link_all_option="-Wl,--whole-archive"
    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
    llvm_cv_os_type="IRIX"
    llvm_cv_platform_type="Unix" ;;
  *-*-cygwin*)
    llvm_cv_link_all_option="-Wl,--whole-archive"
    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
    llvm_cv_os_type="Cygwin"
    llvm_cv_platform_type="Unix" ;;
  *-*-darwin*)
    llvm_cv_link_all_option="-Wl,-all_load"
    llvm_cv_no_link_all_option="-Wl,-noall_load"
    llvm_cv_os_type="Darwin"
    llvm_cv_platform_type="Unix" ;;
  *-*-minix*)
    llvm_cv_link_all_option="-Wl,-all_load"
    llvm_cv_no_link_all_option="-Wl,-noall_load"
    llvm_cv_os_type="Minix"
    llvm_cv_platform_type="Unix" ;;
  *-*-freebsd*)
    llvm_cv_link_all_option="-Wl,--whole-archive"
    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
    llvm_cv_os_type="FreeBSD"
    llvm_cv_platform_type="Unix" ;;
  *-*-kfreebsd-gnu)
    llvm_cv_link_all_option="-Wl,--whole-archive"
    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
    llvm_cv_os_type="GNU/kFreeBSD"
    llvm_cv_platform_type="Unix" ;;
  *-*-openbsd*)
    llvm_cv_link_all_option="-Wl,--whole-archive"
    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
    llvm_cv_os_type="OpenBSD"
    llvm_cv_platform_type="Unix" ;;
  *-*-netbsd*)
    llvm_cv_link_all_option="-Wl,--whole-archive"
    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
    llvm_cv_os_type="NetBSD"
    llvm_cv_platform_type="Unix" ;;
  *-*-dragonfly*)
    llvm_cv_link_all_option="-Wl,--whole-archive"
    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
    llvm_cv_os_type="DragonFly"
    llvm_cv_platform_type="Unix" ;;
  *-*-hpux*)
    llvm_cv_link_all_option="-Wl,--whole-archive"
    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
    llvm_cv_os_type="HP-UX"
    llvm_cv_platform_type="Unix" ;;
  *-*-interix*)
    llvm_cv_link_all_option="-Wl,--whole-archive"
    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
    llvm_cv_os_type="Interix"
    llvm_cv_platform_type="Unix" ;;
  *-*-linux*)
    llvm_cv_link_all_option="-Wl,--whole-archive"
    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
    llvm_cv_os_type="Linux"
    llvm_cv_platform_type="Unix" ;;
  *-*-gnu*)
    llvm_cv_link_all_option="-Wl,--whole-archive"
    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
    llvm_cv_os_type="GNU"
    llvm_cv_platform_type="Unix" ;;
  *-*-solaris*)
    llvm_cv_link_all_option="-Wl,-z,allextract"
    llvm_cv_no_link_all_option="-Wl,-z,defaultextract"
    llvm_cv_os_type="SunOS"
    llvm_cv_platform_type="Unix" ;;
  *-*-auroraux*)
    llvm_cv_link_all_option="-Wl,-z,allextract"
    llvm_cv_link_all_option="-Wl,-z,defaultextract"
    llvm_cv_os_type="AuroraUX"
    llvm_cv_platform_type="Unix" ;;
  *-*-win32*)
    llvm_cv_link_all_option="-Wl,--whole-archive"
    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
    llvm_cv_os_type="Win32"
    llvm_cv_platform_type="Win32" ;;
  *-*-mingw*)
    llvm_cv_link_all_option="-Wl,--whole-archive"
    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
    llvm_cv_os_type="MingW"
    llvm_cv_platform_type="Win32" ;;
  *-*-haiku*)
    llvm_cv_link_all_option="-Wl,--whole-archive"
    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
    llvm_cv_os_type="Haiku"
    llvm_cv_platform_type="Unix" ;;
  *-unknown-eabi*)
    llvm_cv_link_all_option="-Wl,--whole-archive"
    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
    llvm_cv_os_type="Freestanding"
    llvm_cv_platform_type="Unix" ;;
  *-unknown-elf*)
    llvm_cv_link_all_option="-Wl,--whole-archive"
    llvm_cv_no_link_all_option="-Wl,--no-whole-archive"
    llvm_cv_os_type="Freestanding"
    llvm_cv_platform_type="Unix" ;;
  *)
    llvm_cv_link_all_option=""
    llvm_cv_no_link_all_option=""
    llvm_cv_os_type="Unknown"
    llvm_cv_platform_type="Unknown" ;;
esac
fi
{ echo "$as_me:$LINENO: result: $llvm_cv_os_type" >&5
echo "${ECHO_T}$llvm_cv_os_type" >&6; }

{ echo "$as_me:$LINENO: checking type of operating system we're going to target" >&5
echo $ECHO_N "checking type of operating system we're going to target... $ECHO_C" >&6; }
if test "${llvm_cv_target_os_type+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  case $target in
  *-*-aix*)
    llvm_cv_target_os_type="AIX" ;;
  *-*-irix*)
    llvm_cv_target_os_type="IRIX" ;;
  *-*-cygwin*)
    llvm_cv_target_os_type="Cygwin" ;;
  *-*-darwin*)
    llvm_cv_target_os_type="Darwin" ;;
  *-*-minix*)
    llvm_cv_target_os_type="Minix" ;;
  *-*-freebsd*)
    llvm_cv_target_os_type="FreeBSD" ;;
  *-*-kfreebsd-gnu)
    llvm_cv_target_os_type="GNU/kFreeBSD" ;;
  *-*-openbsd*)
    llvm_cv_target_os_type="OpenBSD" ;;
  *-*-netbsd*)
    llvm_cv_target_os_type="NetBSD" ;;
  *-*-dragonfly*)
    llvm_cv_target_os_type="DragonFly" ;;
  *-*-hpux*)
    llvm_cv_target_os_type="HP-UX" ;;
  *-*-interix*)
    llvm_cv_target_os_type="Interix" ;;
  *-*-linux*)
    llvm_cv_target_os_type="Linux" ;;
  *-*-gnu*)
    llvm_cv_target_os_type="GNU" ;;
  *-*-solaris*)
    llvm_cv_target_os_type="SunOS" ;;
  *-*-auroraux*)
    llvm_cv_target_os_type="AuroraUX" ;;
  *-*-win32*)
    llvm_cv_target_os_type="Win32" ;;
  *-*-mingw*)
    llvm_cv_target_os_type="MingW" ;;
  *-*-haiku*)
    llvm_cv_target_os_type="Haiku" ;;
  *-*-rtems*)
    llvm_cv_target_os_type="RTEMS" ;;
  *-*-nacl*)
    llvm_cv_target_os_type="NativeClient" ;;
  *-unknown-eabi*)
    llvm_cv_target_os_type="Freestanding" ;;
  *)
    llvm_cv_target_os_type="Unknown" ;;
esac
fi
{ echo "$as_me:$LINENO: result: $llvm_cv_target_os_type" >&5
echo "${ECHO_T}$llvm_cv_target_os_type" >&6; }

if test "$llvm_cv_os_type" = "Unknown" ; then
  { { echo "$as_me:$LINENO: error: Operating system is unknown, configure can't continue" >&5
echo "$as_me: error: Operating system is unknown, configure can't continue" >&2;}
   { (exit 1); exit 1; }; }
fi

OS=$llvm_cv_os_type

HOST_OS=$llvm_cv_os_type

TARGET_OS=$llvm_cv_target_os_type


LINKALL=$llvm_cv_link_all_option

NOLINKALL=$llvm_cv_no_link_all_option


case $llvm_cv_platform_type in
  Unix)

cat >>confdefs.h <<\_ACEOF
#define LLVM_ON_UNIX 1
_ACEOF

    LLVM_ON_UNIX=1

    LLVM_ON_WIN32=0

    ;;
  Win32)

cat >>confdefs.h <<\_ACEOF
#define LLVM_ON_WIN32 1
_ACEOF

    LLVM_ON_UNIX=0

    LLVM_ON_WIN32=1

    ;;
esac

{ echo "$as_me:$LINENO: checking target architecture" >&5
echo $ECHO_N "checking target architecture... $ECHO_C" >&6; }
if test "${llvm_cv_target_arch+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  case $target in
  i?86-*)                 llvm_cv_target_arch="x86" ;;
  amd64-* | x86_64-*)     llvm_cv_target_arch="x86_64" ;;
  sparc*-*)               llvm_cv_target_arch="Sparc" ;;
  powerpc*-*)             llvm_cv_target_arch="PowerPC" ;;
  arm*-*)                 llvm_cv_target_arch="ARM" ;;
  aarch64*-*)             llvm_cv_target_arch="AArch64" ;;
  mips-* | mips64-*)      llvm_cv_target_arch="Mips" ;;
  mipsel-* | mips64el-*)  llvm_cv_target_arch="Mips" ;;
  xcore-*)                llvm_cv_target_arch="XCore" ;;
  msp430-*)               llvm_cv_target_arch="MSP430" ;;
  hexagon-*)              llvm_cv_target_arch="Hexagon" ;;
  nvptx-*)                llvm_cv_target_arch="NVPTX" ;;
  s390x-*)                llvm_cv_target_arch="SystemZ" ;;
  *)                      llvm_cv_target_arch="Unknown" ;;
esac
fi
{ echo "$as_me:$LINENO: result: $llvm_cv_target_arch" >&5
echo "${ECHO_T}$llvm_cv_target_arch" >&6; }

if test "$llvm_cv_target_arch" = "Unknown" ; then
  { echo "$as_me:$LINENO: WARNING: Configuring LLVM for an unknown target archicture" >&5
echo "$as_me: WARNING: Configuring LLVM for an unknown target archicture" >&2;}
fi

case "$llvm_cv_target_arch" in
    x86)     LLVM_NATIVE_ARCH="X86" ;;
    x86_64)  LLVM_NATIVE_ARCH="X86" ;;
    *)       LLVM_NATIVE_ARCH="$llvm_cv_target_arch" ;;
esac

ARCH=$llvm_cv_target_arch


case $host in
  i?86-*)                 host_arch="x86" ;;
  amd64-* | x86_64-*)     host_arch="x86_64" ;;
  sparc*-*)               host_arch="Sparc" ;;
  powerpc*-*)             host_arch="PowerPC" ;;
  arm*-*)                 host_arch="ARM" ;;
  aarch64*-*)             host_arch="AArch64" ;;
  mips-* | mips64-*)      host_arch="Mips" ;;
  mipsel-* | mips64el-*)  host_arch="Mips" ;;
  xcore-*)                host_arch="XCore" ;;
  msp430-*)               host_arch="MSP430" ;;
  hexagon-*)              host_arch="Hexagon" ;;
  s390x-*)                host_arch="SystemZ" ;;
  *)                      host_arch="Unknown" ;;
esac

if test "$host_arch" = "Unknown" ; then
  { echo "$as_me:$LINENO: WARNING: Configuring LLVM for an unknown host archicture" >&5
echo "$as_me: WARNING: Configuring LLVM for an unknown host archicture" >&2;}
fi

HOST_ARCH=$host_arch


if test "$cross_compiling" = yes; then
  LLVM_CROSS_COMPILING=1


{ echo "$as_me:$LINENO: checking for executable suffix on build platform" >&5
echo $ECHO_N "checking for executable suffix on build platform... $ECHO_C" >&6; }
if test "${ac_cv_build_exeext+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test "$CYGWIN" = yes || test "$MINGW32" = yes; then
  ac_cv_build_exeext=.exe
else
  ac_build_prefix=${build_alias}-

  # Extract the first word of "${ac_build_prefix}gcc", so it can be a program name with args.
set dummy ${ac_build_prefix}gcc; ac_word=$2
{ echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
if test "${ac_cv_prog_BUILD_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$BUILD_CC"; then
  ac_cv_prog_BUILD_CC="$BUILD_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; }; then
    ac_cv_prog_BUILD_CC="${ac_build_prefix}gcc"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done
IFS=$as_save_IFS

fi
fi
BUILD_CC=$ac_cv_prog_BUILD_CC
if test -n "$BUILD_CC"; then
  { echo "$as_me:$LINENO: result: $BUILD_CC" >&5
echo "${ECHO_T}$BUILD_CC" >&6; }
else
  { echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6; }
fi


  if test -z "$BUILD_CC"; then
     # Extract the first word of "gcc", so it can be a program name with args.
set dummy gcc; ac_word=$2
{ echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
if test "${ac_cv_prog_BUILD_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$BUILD_CC"; then
  ac_cv_prog_BUILD_CC="$BUILD_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; }; then
    ac_cv_prog_BUILD_CC="gcc"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done
IFS=$as_save_IFS

fi
fi
BUILD_CC=$ac_cv_prog_BUILD_CC
if test -n "$BUILD_CC"; then
  { echo "$as_me:$LINENO: result: $BUILD_CC" >&5
echo "${ECHO_T}$BUILD_CC" >&6; }
else
  { echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6; }
fi


     if test -z "$BUILD_CC"; then
       # Extract the first word of "cc", so it can be a program name with args.
set dummy cc; ac_word=$2
{ echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
if test "${ac_cv_prog_BUILD_CC+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$BUILD_CC"; then
  ac_cv_prog_BUILD_CC="$BUILD_CC" # Let the user override the test.
else
  ac_prog_rejected=no
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; }; then
    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
       ac_prog_rejected=yes
       continue
     fi
    ac_cv_prog_BUILD_CC="cc"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done
IFS=$as_save_IFS

if test $ac_prog_rejected = yes; then
  # We found a bogon in the path, so make sure we never use it.
  set dummy $ac_cv_prog_BUILD_CC
  shift
  if test $# != 0; then
    # We chose a different compiler from the bogus one.
    # However, it has the same basename, so the bogon will be chosen
    # first if we set BUILD_CC to just the basename; use the full file name.
    shift
    ac_cv_prog_BUILD_CC="$as_dir/$ac_word${1+' '}$@"
  fi
fi
fi
fi
BUILD_CC=$ac_cv_prog_BUILD_CC
if test -n "$BUILD_CC"; then
  { echo "$as_me:$LINENO: result: $BUILD_CC" >&5
echo "${ECHO_T}$BUILD_CC" >&6; }
else
  { echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6; }
fi


     fi
  fi
  test -z "$BUILD_CC" && { { echo "$as_me:$LINENO: error: no acceptable cc found in \$PATH" >&5
echo "$as_me: error: no acceptable cc found in \$PATH" >&2;}
   { (exit 1); exit 1; }; }
  ac_build_link='${BUILD_CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
  rm -f conftest*
  echo 'int main () { return 0; }' > conftest.$ac_ext
  ac_cv_build_exeext=
  if { (eval echo "$as_me:$LINENO: \"$ac_build_link\"") >&5
  (eval $ac_build_link) 2>&5
  ac_status=$?
  echo "$as_me:$LINENO: \$? = $ac_status" >&5
  (exit $ac_status); }; then
    for file in conftest.*; do
      case $file in
      *.c | *.o | *.obj | *.dSYM) ;;
      *) ac_cv_build_exeext=`echo $file | sed -e s/conftest//` ;;
      esac
    done
  else
    { { echo "$as_me:$LINENO: error: installation or configuration problem: compiler cannot create executables." >&5
echo "$as_me: error: installation or configuration problem: compiler cannot create executables." >&2;}
   { (exit 1); exit 1; }; }
  fi
  rm -f conftest*
  test x"${ac_cv_build_exeext}" = x && ac_cv_build_exeext=blank
fi
fi

BUILD_EXEEXT=""
test x"${ac_cv_build_exeext}" != xblank && BUILD_EXEEXT=${ac_cv_build_exeext}
{ echo "$as_me:$LINENO: result: ${ac_cv_build_exeext}" >&5
echo "${ECHO_T}${ac_cv_build_exeext}" >&6; }
ac_build_exeext=$BUILD_EXEEXT

  ac_build_prefix=${build_alias}-
  # Extract the first word of "${ac_build_prefix}g++", so it can be a program name with args.
set dummy ${ac_build_prefix}g++; ac_word=$2
{ echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
if test "${ac_cv_prog_BUILD_CXX+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$BUILD_CXX"; then
  ac_cv_prog_BUILD_CXX="$BUILD_CXX" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; }; then
    ac_cv_prog_BUILD_CXX="${ac_build_prefix}g++"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done
IFS=$as_save_IFS

fi
fi
BUILD_CXX=$ac_cv_prog_BUILD_CXX
if test -n "$BUILD_CXX"; then
  { echo "$as_me:$LINENO: result: $BUILD_CXX" >&5
echo "${ECHO_T}$BUILD_CXX" >&6; }
else
  { echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6; }
fi


  if test -z "$BUILD_CXX"; then
     # Extract the first word of "g++", so it can be a program name with args.
set dummy g++; ac_word=$2
{ echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
if test "${ac_cv_prog_BUILD_CXX+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$BUILD_CXX"; then
  ac_cv_prog_BUILD_CXX="$BUILD_CXX" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; }; then
    ac_cv_prog_BUILD_CXX="g++"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done
IFS=$as_save_IFS

fi
fi
BUILD_CXX=$ac_cv_prog_BUILD_CXX
if test -n "$BUILD_CXX"; then
  { echo "$as_me:$LINENO: result: $BUILD_CXX" >&5
echo "${ECHO_T}$BUILD_CXX" >&6; }
else
  { echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6; }
fi


     if test -z "$BUILD_CXX"; then
       # Extract the first word of "c++", so it can be a program name with args.
set dummy c++; ac_word=$2
{ echo "$as_me:$LINENO: checking for $ac_word" >&5
echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
if test "${ac_cv_prog_BUILD_CXX+set}" = set; then
  echo $ECHO_N "(cached) $ECHO_C" >&6
else
  if test -n "$BUILD_CXX"; then
  ac_cv_prog_BUILD_CXX="$BUILD_CXX" # Let the user override the test.
else
  ac_prog_rejected=no
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  for ac_exec_ext in '' $ac_executable_extensions; do
  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; }; then
    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/c++"; then
       ac_prog_rejected=yes
       continue
     fi
    ac_cv_prog_BUILD_CXX="c++"
    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
done
IFS=$as_save_IFS

if test $ac_prog_rejected = yes; then
  # We found a bogon in the path, so make sure we never use it.
  set dummy $ac_cv_prog_BUILD_CXX
  shift
  if test $# != 0; then
    # We chose a different compiler from the bogus one.
    # However, it has the same basename, so the bogon will be chosen
    # first if we set BUILD_CXX to just the basename; use the full file name.
    shift
    ac_cv_prog_BUILD_CXX="$as_dir/$ac_word${1+' '}$@"
  fi
fi
fi
fi
BUILD_CXX=$ac_cv_prog_BUILD_CXX
if test -n "$BUILD_CXX"; then
  { echo "$as_me:$LINENO: result: $BUILD_CXX" >&5
echo "${ECHO_T}$BUILD_CXX" >&6; }
else
  { echo "$as_me:$LINENO: result: no" >&5
echo "${ECHO_T}no" >&6; }
fi


     fi
  fi
else
  LLVM_CROSS_COMPILING=0

fi

if test -d ".svn" -o -d "${srcdir}/.svn" -o -d ".git" -o -d "${srcdir}/.git"; then
  cvsbuild="yes"
  optimize="no"
  CVSBUILD=CVSBUILD=1

else
  cvsbuild="no"
  optimize="yes"
fi


# Check whether --enable-libcpp was given.
if test "${enable_libcpp+set}" = set; then
  enableval=$enable_libcpp;
else
  enableval=default
fi

case "$enableval" in
  yes) ENABLE_LIBCPP=1
 ;;
  no)  ENABLE_LIBCPP=0
 ;;
  default) ENABLE_LIBCPP=0
;;
  *) { { echo "$as_me:$LINENO: error: Invalid setting for --enable-libcpp. Use \"yes\" or \"no\"" >&5
echo "$as_me: error: Invalid setting for --enable-libcpp. Use \"yes\" or \"no\"" >&2;}
   { (exit 1); exit 1; }; } ;;
esac

# Check whether --enable-cxx11 was given.
if test "${enable_cxx11+set}" = set; then
  enableval=$enable_cxx11;
else
  enableval=default
fi

case "$enableval" in
  yes) ENABLE_CXX11=1
 ;;
  no)  ENABLE_CXX11=0
 ;;
  default) ENABLE_CXX11=0
;;
  *) { { echo "$as_me:$LINENO: error: Invalid setting for --enable-cxx11. Use \"yes\" or \"no\"" >&5
echo "$as_me: error: Invalid setting for --enable-cxx11. Use \"yes\" or \"no\"" >&2;}
   { (exit 1); exit 1; }; } ;;
esac

# Check whether --enable-split-dwarf was given.
if test "${enable_split_dwarf+set}" = set; then
  enableval=$enable_split_dwarf;
else
  enableval=default
fi

case "$enableval" in
  yes) ENABLE_SPLIT_DWARF=1
 ;;
  no)  ENABLE_SPLIT_DWARF=0
 ;;
  default) ENABLE_SPLIT_DWARF=0
;;
  *) { { echo "$as_me:$LINENO: error: Invalid setting for --enable-split-dwarf. Use \"yes\" or \"no\"" >&5
echo "$as_me: error: Invalid setting for --enable-split-dwarf. Use \"yes\" or \"no\"" >&2;}
   { (exit 1); exit 1; }; } ;;
esac

clang_arcmt="yes"
# Check whether --enable-clang-arcmt was given.
if test "${enable_clang_arcmt+set}" = set; then
  enableval=$enable_clang_arcmt; clang_arcmt="$enableval"
else
  enableval="yes"
fi

case "$enableval" in
  yes) ENABLE_CLANG_ARCMT=1
 ;;
  no)  ENABLE_CLANG_ARCMT=0
 ;;
  default) ENABLE_CLANG_ARCMT=1
;;
  *) { { echo "$as_me:$LINENO: error: Invalid setting for --enable-clang-arcmt. Use \"yes\" or \"no\"" >&5
echo "$as_me: error: Invalid setting for --enable-clang-arcmt. Use \"yes\" or \"no\"" >&2;}
   { (exit 1); exit 1; }; } ;;
esac

clang_static_analyzer="yes"
# Check whether --enable-clang-static-analyzer was given.
if test "${enable_clang_static_analyzer+set}" = set; then
  enableval=$enable_clang_static_analyzer; clang_static_analyzer="$enableval"
else
  enableval="yes"
fi

case "$enableval" in
  yes) ENABLE_CLANG_STATIC_ANALYZER=1
 ;;
  no)
    if test ${clang_arcmt} != "no" ; then
      { { echo "$as_me:$LINENO: error: Cannot enable clang ARC Migration Tool while disabling static analyzer." >&5
echo "$as_me: error: Cannot enable clang ARC Migration Tool while disabling static analyzer." >&2;}
   { (exit 1); exit 1; }; }
    fi
    ENABLE_CLANG_STATIC_ANALYZER=0

    ;;
  default) ENABLE_CLANG_STATIC_ANALYZER=1
;;
  *) { { echo "$as_me:$LINENO: error: Invalid setting for --enable-clang-static-analyzer. Use \"yes\" or \"no\"" >&5
echo "$as_me: error: Invalid setting for --enable-clang-static-analyzer. Use \"yes\" or \"no\"" >&2;}
   { (exit 1); exit 1; }; } ;;
esac

# Check whether --enable-clang-rewriter was given.
if test "${enable_clang_rewriter+set}" = set; then
  enableval=$enable_clang_rewriter;
else
  enableval="yes"
fi

case "$enableval" in
  yes) ENABLE_CLANG_REWRITER=1
 ;;
  no)
    if test ${clang_arcmt} != "no" ; then
      { { echo "$as_me:$LINENO: error: Cannot enable clang ARC Migration Tool while disabling rewriter." >&5
echo "$as_me: error: Cannot enable clang ARC Migration Tool while disabling rewriter." >&2;}
   { (exit 1); exit 1; }; }
    fi
    if test ${clang_static_analyzer} != "no" ; then
      { { echo "$as_me:$LINENO: error: Cannot enable clang static analyzer while disabling rewriter." >&5
echo "$as_me: error: Cannot enable clang static analyzer while disabling rewriter." >&2;}
   { (exit 1); exit 1; }; }
    fi
    ENABLE_CLANG_REWRITER=0

    ;;
  default) ENABLE_CLANG_REWRITER=1
;;
  *) { { echo "$as_me:$LINENO: error: Invalid setting for --enable-clang-rewriter. Use \"yes\" or \"no\"" >&5
echo "$as_me: error: Invalid setting for --enable-clang-rewriter. Use \"yes\" or \"no\"" >&2;}
   { (exit 1); exit 1; }; } ;;
esac

# Check whether --enable-optimized was given.
if test "${enable_optimized+set}" = set; then
  enableval=$enable_optimized;
else
  enableval=$optimize
fi

if test ${enableval} = "no" ; then
  ENABLE_OPTIMIZED=

else
  ENABLE_OPTIMIZED=ENABLE_OPTIMIZED=1

fi

# Check whether --enable-profiling was given.
if test "${enable_profiling+set}" = set; then
  enableval=$enable_profiling;
else
  enableval="no"
fi

if test ${enableval} = "no" ; then
  ENABLE_PROFILING=

else
  ENABLE_PROFILING=ENABLE_PROFILING=1

fi

# Check whether --enable-assertions was given.
if test "${enable_assertions+set}" = set; then
  enableval=$enable_assertions;
else
  enableval="yes"
fi

if test ${enableval} = "yes" ; then
  DISABLE_ASSERTIONS=

else
  DISABLE_ASSERTIONS=DISABLE_ASSERTIONS=1

fi

# Check whether --enable-werror was given.
if test "${enable_werror+set}" = set; then
  enableval=$enable_werror;
else
  enableval="no"
fi

case "$enableval" in
  yes) ENABLE_WERROR=1
 ;;
  no)  ENABLE_WERROR=0
 ;;
  default) ENABLE_WERROR=0
;;
  *) { { echo "$as_me:$LINENO: error: Invalid setting for --enable-werror. Use \"yes\" or \"no\"" >&5
echo "$as_me: error: Invalid setting for --enable-werror. Use \"yes\" or \"no\"" >&2;}
   { (exit 1); exit 1; }; } ;;
esac

# Check whether --enable-expensive-checks was given.
if test "${enable_expensive_checks+set}" = set; then
  enableval=$enable_expensive_checks;
else
  enableval="no"
fi

if test ${enableval} = "yes" ; then
  ENABLE_EXPENSIVE_CHECKS=ENABLE_EXPENSIVE_CHECKS=1

  EXPENSIVE_CHECKS=yes

else
  ENABLE_EXPENSIVE_CHECKS=

  EXPENSIVE_CHECKS=no

fi

# Check whether --enable-debug-runtime was given.
if test "${enable_debug_runtime+set}" = set; then
  enableval=$enable_debug_runtime;
else
  enableval=no
fi

if test ${enableval} = "no" ; then
  DEBUG_RUNTIME=