if test "x$MIG" = xMISSING; then
  { echo "configure: error: cannot find required build tool mig" 1>&2; exit 1; }
fi

### Sanity checks for Mach header installation
ac_safe=`echo "mach/mach_types.h" | sed 'y%./+-%__p_%'`
echo $ac_n "checking for mach/mach_types.h""... $ac_c" 1>&6
echo "configure:10: checking for mach/mach_types.h" >&5
if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 15 "configure"
#include "confdefs.h"
#include <mach/mach_types.h>
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:20: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
  rm -rf conftest*
  eval "ac_cv_header_$ac_safe=yes"
else
  echo "$ac_err" >&5
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  eval "ac_cv_header_$ac_safe=no"
fi
rm -f conftest*
fi
if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
  echo "$ac_t""yes" 1>&6
  :
else
  echo "$ac_t""no" 1>&6
{ echo "configure: error: cannot find Mach headers" 1>&2; exit 1; }
fi

ac_safe=`echo "mach/mach_types.defs" | sed 'y%./+-%__p_%'`
echo $ac_n "checking for mach/mach_types.defs""... $ac_c" 1>&6
echo "configure:44: checking for mach/mach_types.defs" >&5
if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 49 "configure"
#include "confdefs.h"
#include <mach/mach_types.defs>
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:54: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
  rm -rf conftest*
  eval "ac_cv_header_$ac_safe=yes"
else
  echo "$ac_err" >&5
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  eval "ac_cv_header_$ac_safe=no"
fi
rm -f conftest*
fi
if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
  echo "$ac_t""yes" 1>&6
  :
else
  echo "$ac_t""no" 1>&6
{ echo "configure: error: cannot find Mach .defs files" 1>&2; exit 1; }
fi




echo $ac_n "checking for task_t in mach/mach_types.h""... $ac_c" 1>&6
echo "configure:80: checking for task_t in mach/mach_types.h" >&5
if eval "test \"`echo '$''{'libc_cv_mach_task_t'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 85 "configure"
#include "confdefs.h"
#include <mach/mach_types.h>
int main() {
extern task_t foo;
; return 0; }
EOF
if { (eval echo configure:92: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  libc_cv_mach_task_t=task_t
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  libc_cv_mach_task_t=task_port_t
fi
rm -f conftest*
fi

echo "$ac_t""$libc_cv_mach_task_t" 1>&6
if test $libc_cv_mach_task_t != task_t; then
  DEFINES="$DEFINES -Dtask_t=task_port_t"
fi
echo $ac_n "checking for thread_t in mach/mach_types.h""... $ac_c" 1>&6
echo "configure:109: checking for thread_t in mach/mach_types.h" >&5
if eval "test \"`echo '$''{'libc_cv_mach_thread_t'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 114 "configure"
#include "confdefs.h"
#include <mach/mach_types.h>
int main() {
extern thread_t foo;
; return 0; }
EOF
if { (eval echo configure:121: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  libc_cv_mach_thread_t=thread_t
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  libc_cv_mach_thread_t=thread_port_t
fi
rm -f conftest*
fi

echo "$ac_t""$libc_cv_mach_thread_t" 1>&6
if test $libc_cv_mach_thread_t != thread_t; then
  DEFINES="$DEFINES -Dthread_t=thread_port_t"
fi

echo $ac_n "checking for creation_time in task_basic_info""... $ac_c" 1>&6
echo "configure:139: checking for creation_time in task_basic_info" >&5
if eval "test \"`echo '$''{'libc_cv_mach_task_creation_time'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 144 "configure"
#include "confdefs.h"
#include <mach/task_info.h>
int main() {

extern struct task_basic_info *i;
long s = i->creation_time.seconds;

; return 0; }
EOF
if { (eval echo configure:154: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  libc_cv_mach_task_creation_time=yes
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  libc_cv_mach_task_creation_time=no
fi
rm -f conftest*
fi

echo "$ac_t""$libc_cv_mach_task_creation_time" 1>&6
if test $libc_cv_mach_task_creation_time = no; then
  DEFINES="$DEFINES -DNO_CREATION_TIME=1"
fi

mach_interface_list=
for ifc in mach mach4 \
	   clock clock_priv host_priv host_security ledger lock_set \
	   processor processor_set task thread_act vm_map \
	   memory_object memory_object_default default_pager \
	   i386/mach_i386 \
	   ; do
  ac_safe=`echo "mach/${ifc}.defs" | sed 'y%./+-%__p_%'`
echo $ac_n "checking for mach/${ifc}.defs""... $ac_c" 1>&6
echo "configure:180: checking for mach/${ifc}.defs" >&5
if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 185 "configure"
#include "confdefs.h"
#include <mach/${ifc}.defs>
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:190: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
  rm -rf conftest*
  eval "ac_cv_header_$ac_safe=yes"
else
  echo "$ac_err" >&5
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  eval "ac_cv_header_$ac_safe=no"
fi
rm -f conftest*
fi
if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
  echo "$ac_t""yes" 1>&6
    mach_interface_list="$mach_interface_list $ifc"
else
  echo "$ac_t""no" 1>&6
fi

done
if test "x$mach_interface_list" = x; then
  { echo "configure: error: what manner of Mach is this?" 1>&2; exit 1; }
fi

echo $ac_n "checking for host_page_size in mach_host.defs""... $ac_c" 1>&6
echo "configure:217: checking for host_page_size in mach_host.defs" >&5
if eval "test \"`echo '$''{'libc_cv_mach_host_page_size'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 222 "configure"
#include "confdefs.h"
#include <mach/mach_host.defs>
EOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  egrep "host_page_size" >/dev/null 2>&1; then
  rm -rf conftest*
  libc_cv_mach_host_page_size=yes
else
  rm -rf conftest*
  libc_cv_mach_host_page_size=no
fi
rm -f conftest*

fi

echo "$ac_t""$libc_cv_mach_host_page_size" 1>&6
if test $libc_cv_mach_host_page_size = yes; then
  cat >> confdefs.h <<\EOF
#define HAVE_HOST_PAGE_SIZE 1
EOF

fi

ac_safe=`echo "mach/machine/ndr_def.h" | sed 'y%./+-%__p_%'`
echo $ac_n "checking for mach/machine/ndr_def.h""... $ac_c" 1>&6
echo "configure:248: checking for mach/machine/ndr_def.h" >&5
if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 253 "configure"
#include "confdefs.h"
#include <mach/machine/ndr_def.h>
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:258: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
  rm -rf conftest*
  eval "ac_cv_header_$ac_safe=yes"
else
  echo "$ac_err" >&5
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  eval "ac_cv_header_$ac_safe=no"
fi
rm -f conftest*
fi
if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
  echo "$ac_t""yes" 1>&6
    DEFINES="$DEFINES -DNDR_DEF_HEADER='<mach/machine/ndr_def.h>'"
else
  echo "$ac_t""no" 1>&6
ac_safe=`echo "machine/ndr_def.h" | sed 'y%./+-%__p_%'`
echo $ac_n "checking for machine/ndr_def.h""... $ac_c" 1>&6
echo "configure:279: checking for machine/ndr_def.h" >&5
if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 284 "configure"
#include "confdefs.h"
#include <machine/ndr_def.h>
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:289: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
  rm -rf conftest*
  eval "ac_cv_header_$ac_safe=yes"
else
  echo "$ac_err" >&5
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  eval "ac_cv_header_$ac_safe=no"
fi
rm -f conftest*
fi
if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
  echo "$ac_t""yes" 1>&6
    DEFINES="$DEFINES -DNDR_DEF_HEADER='<machine/ndr_def.h>'"
else
  echo "$ac_t""no" 1>&6
fi

fi


echo $ac_n "checking for i386_io_perm_modify in mach_i386.defs""... $ac_c" 1>&6
echo "configure:314: checking for i386_io_perm_modify in mach_i386.defs" >&5
if eval "test \"`echo '$''{'libc_cv_mach_i386_ioports'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 319 "configure"
#include "confdefs.h"
#include <mach/i386/mach_i386.defs>
EOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  egrep "i386_io_perm_modify" >/dev/null 2>&1; then
  rm -rf conftest*
  libc_cv_mach_i386_ioports=yes
else
  rm -rf conftest*
  libc_cv_mach_i386_ioports=no
fi
rm -f conftest*

fi

echo "$ac_t""$libc_cv_mach_i386_ioports" 1>&6
if test $libc_cv_mach_i386_ioports = yes; then
  cat >> confdefs.h <<\EOF
#define HAVE_I386_IO_PERM_MODIFY 1
EOF

fi