echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1073 "configure"
#include "confdefs.h"
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <float.h>
EOF
eval "$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
ac_err=`grep -v '^ *+' conftest.out`
if test -z "$ac_err"; then
  rm -rf conftest*
  ac_cv_header_stdc=yes
else
  echo "$ac_err" >&5
  rm -rf conftest*
  ac_cv_header_stdc=no
fi
rm -f conftest*

if test $ac_cv_header_stdc = yes; then
  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
cat > conftest.$ac_ext <<EOF
#line 1095 "configure"
#include "confdefs.h"
#include <string.h>
EOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  egrep "memchr" >/dev/null 2>&1; then
  :
else
  rm -rf conftest*
  ac_cv_header_stdc=no
fi
rm -f conftest*

fi

if test $ac_cv_header_stdc = yes; then
  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
cat > conftest.$ac_ext <<EOF
#line 1113 "configure"
#include "confdefs.h"
#include <stdlib.h>
EOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  egrep "free" >/dev/null 2>&1; then
  :
else
  rm -rf conftest*
  ac_cv_header_stdc=no
fi
rm -f conftest*

fi

if test $ac_cv_header_stdc = yes; then
  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
if test "$cross_compiling" = yes; then
  :
else
cat > conftest.$ac_ext <<EOF
#line 1134 "configure"
#include "confdefs.h"
#include <ctype.h>
#define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
#define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
int main () { int i; for (i = 0; i < 256; i++)
if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2);
exit (0); }

EOF
eval $ac_link
if test -s conftest && (./conftest; exit) 2>/dev/null; then
  :
else
  ac_cv_header_stdc=no
fi
fi
rm -fr conftest*
fi
fi

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

fi

echo $ac_n "checking for sys/wait.h that is POSIX.1 compatible""... $ac_c" 1>&6
if eval "test \"`echo '$''{'ac_cv_header_sys_wait_h'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1169 "configure"
#include "confdefs.h"
#include <sys/types.h>
#include <sys/wait.h>
#ifndef WEXITSTATUS
#define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8)
#endif
#ifndef WIFEXITED
#define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
#endif
int main() { return 0; }
int t() {
int s;
wait (&s);
s = WIFEXITED (s) ? WEXITSTATUS (s) : 1;
; return 0; }
EOF
if eval $ac_compile; then
  rm -rf conftest*
  ac_cv_header_sys_wait_h=yes
else
  rm -rf conftest*
  ac_cv_header_sys_wait_h=no
fi
rm -f conftest*

fi

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

fi

for ac_hdr in fcntl.h limits.h sgtty.h sys/time.h unistd.h
do
ac_safe=`echo "$ac_hdr" | tr './\055' '___'`
echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1213 "configure"
#include "confdefs.h"
#include <$ac_hdr>
EOF
eval "$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
ac_err=`grep -v '^ *+' conftest.out`
if test -z "$ac_err"; then
  rm -rf conftest*
  eval "ac_cv_header_$ac_safe=yes"
else
  echo "$ac_err" >&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
    ac_tr_hdr=HAVE_`echo $ac_hdr | tr 'abcdefghijklmnopqrstuvwxyz./\055' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ___'`
  cat >> confdefs.h <<EOF
#define $ac_tr_hdr 1
EOF
 
else
  echo "$ac_t""no" 1>&6
fi
done


#
# checks for typedefs, structures, and compiler characteristics
#
echo $ac_n "checking for working const""... $ac_c" 1>&6
if eval "test \"`echo '$''{'ac_cv_c_const'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1250 "configure"
#include "confdefs.h"

int main() { return 0; }
int t() {

/* Ultrix mips cc rejects this.  */
typedef int charset[2]; const charset x;
/* SunOS 4.1.1 cc rejects this.  */
char const *const *ccp;
char **p;
/* NEC SVR4.0.2 mips cc rejects this.  */
struct point {int x, y;};
static struct point const zero = {0,0};
/* AIX XL C 1.02.0.0 rejects this.
   It does not let you subtract one const X* pointer from another in an arm
   of an if-expression whose if-part is not a constant expression */
const char *g = "string";
ccp = &g + (g ? g-g : 0);
/* HPUX 7.0 cc rejects these. */
++ccp;
p = (char**) ccp;
ccp = (char const *const *) p;
{ /* SCO 3.2v4 cc rejects this.  */
  char *t;
  char const *s = 0 ? (char *) 0 : (char const *) 0;

  *t++ = 0;
}
{ /* Someone thinks the Sun supposedly-ANSI compiler will reject this.  */
  int x[] = {25, 17};
  const int *foo = &x[0];
  ++foo;
}
{ /* Sun SC1.0 ANSI compiler rejects this -- but not the above. */
  typedef const int *iptr;
  iptr p = 0;
  ++p;
}
{ /* AIX XL C 1.02.0.0 rejects this saying
     "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */
  struct s { int j; const int *ap[3]; };
  struct s *b; b->j = 5;
}
{ /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */
  const int foo = 10;
}

; return 0; }
EOF
if eval $ac_compile; then
  rm -rf conftest*
  ac_cv_c_const=yes
else
  rm -rf conftest*
  ac_cv_c_const=no
fi
rm -f conftest*

fi

echo "$ac_t""$ac_cv_c_const" 1>&6
if test $ac_cv_c_const = no; then
  cat >> confdefs.h <<\EOF
#define const 
EOF

fi

echo $ac_n "checking for size_t""... $ac_c" 1>&6
if eval "test \"`echo '$''{'ac_cv_type_size_t'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1324 "configure"
#include "confdefs.h"
#include <sys/types.h>
#if STDC_HEADERS
#include <stdlib.h>
#endif
EOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  egrep "size_t" >/dev/null 2>&1; then
  rm -rf conftest*
  ac_cv_type_size_t=yes
else
  rm -rf conftest*
  ac_cv_type_size_t=no
fi
rm -f conftest*

fi
echo "$ac_t""$ac_cv_type_size_t" 1>&6
if test $ac_cv_type_size_t = no; then
  cat >> confdefs.h <<\EOF
#define size_t unsigned
EOF

fi

echo $ac_n "checking return type of signal handlers""... $ac_c" 1>&6
if eval "test \"`echo '$''{'ac_cv_type_signal'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1355 "configure"
#include "confdefs.h"
#include <sys/types.h>
#include <signal.h>
#ifdef signal
#undef signal
#endif
#ifdef __cplusplus
extern "C" void (*signal (int, void (*)(int)))(int);
#else
void (*signal ()) ();
#endif

int main() { return 0; }
int t() {
int i;
; return 0; }
EOF
if eval $ac_compile; then
  rm -rf conftest*
  ac_cv_type_signal=void
else
  rm -rf conftest*
  ac_cv_type_signal=int
fi
rm -f conftest*

fi

echo "$ac_t""$ac_cv_type_signal" 1>&6
cat >> confdefs.h <<EOF
#define RETSIGTYPE $ac_cv_type_signal
EOF


echo $ac_n "checking whether time.h and sys/time.h may both be included""... $ac_c" 1>&6
if eval "test \"`echo '$''{'ac_cv_header_time'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1395 "configure"
#include "confdefs.h"
#include <sys/types.h>
#include <sys/time.h>
#include <time.h>
int main() { return 0; }
int t() {
struct tm *tp;
; return 0; }
EOF
if eval $ac_compile; then
  rm -rf conftest*
  ac_cv_header_time=yes
else
  rm -rf conftest*
  ac_cv_header_time=no
fi
rm -f conftest*

fi

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

fi

echo $ac_n "checking whether struct tm is in sys/time.h or time.h""... $ac_c" 1>&6
if eval "test \"`echo '$''{'ac_cv_struct_tm'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1429 "configure"
#include "confdefs.h"
#include <sys/types.h>
#include <time.h>
int main() { return 0; }
int t() {
struct tm *tp; tp->tm_sec;
; return 0; }
EOF
if eval $ac_compile; then
  rm -rf conftest*
  ac_cv_struct_tm=time.h
else
  rm -rf conftest*
  ac_cv_struct_tm=sys/time.h
fi
rm -f conftest*

fi

echo "$ac_t""$ac_cv_struct_tm" 1>&6
if test $ac_cv_struct_tm = sys/time.h; then
  cat >> confdefs.h <<\EOF
#define TM_IN_SYS_TIME 1
EOF

fi

echo $ac_n "checking for tm_zone in struct tm""... $ac_c" 1>&6
if eval "test \"`echo '$''{'ac_cv_struct_tm_zone'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1462 "configure"
#include "confdefs.h"
#include <sys/types.h>
#include <$ac_cv_struct_tm>
int main() { return 0; }
int t() {
struct tm tm; tm.tm_zone;
; return 0; }
EOF
if eval $ac_compile; then
  rm -rf conftest*
  ac_cv_struct_tm_zone=yes
else
  rm -rf conftest*
  ac_cv_struct_tm_zone=no
fi
rm -f conftest*

fi

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

else
  echo $ac_n "checking for tzname""... $ac_c" 1>&6
if eval "test \"`echo '$''{'ac_cv_var_tzname'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1494 "configure"
#include "confdefs.h"
#include <time.h>
#ifndef tzname /* For SGI.  */
extern char *tzname[]; /* RS6000 and others reject char **tzname.  */
#endif
int main() { return 0; }
int t() {
atoi(*tzname);
; return 0; }
EOF
if eval $ac_link; then
  rm -rf conftest*
  ac_cv_var_tzname=yes
else
  rm -rf conftest*
  ac_cv_var_tzname=no
fi
rm -f conftest*

fi

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

  fi
fi

cat > conftest.$ac_ext <<EOF
#line 1526 "configure"
#include "confdefs.h"
#include <sys/time.h>
int main() { return 0; }
int t() {
struct timeval thetime; struct timezone thezone; 
	gettimeofday(&thetime, &thezone); 
; return 0; }
EOF
if eval $ac_compile; then
  rm -rf conftest*
  cat >> confdefs.h <<\EOF
#define USE_TIMEZONE 1
EOF

fi
rm -f conftest*


#
# checks for library functions
#
echo $ac_n "checking for 8-bit clean memcmp""... $ac_c" 1>&6
if eval "test \"`echo '$''{'ac_cv_func_memcmp'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  if test "$cross_compiling" = yes; then
  ac_cv_func_memcmp=no
else
cat > conftest.$ac_ext <<EOF
#line 1556 "configure"
#include "confdefs.h"

main()
{
  char c0 = 0x40, c1 = 0x80, c2 = 0x81;
  exit(memcmp(&c0, &c2, 1) < 0 && memcmp(&c1, &c2, 1) < 0 ? 0 : 1);
}

EOF
eval $ac_link
if test -s conftest && (./conftest; exit) 2>/dev/null; then
  ac_cv_func_memcmp=yes
else
  ac_cv_func_memcmp=no
fi
fi
rm -fr conftest*
fi

echo "$ac_t""$ac_cv_func_memcmp" 1>&6
test $ac_cv_func_memcmp = no && LIBOBJS="$LIBOBJS memcmp.o"

echo $ac_n "checking return type of signal handlers""... $ac_c" 1>&6
if eval "test \"`echo '$''{'ac_cv_type_signal'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1584 "configure"
#include "confdefs.h"
#include <sys/types.h>
#include <signal.h>
#ifdef signal
#undef signal
#endif
#ifdef __cplusplus
extern "C" void (*signal (int, void (*)(int)))(int);
#else
void (*signal ()) ();
#endif

int main() { return 0; }
int t() {
int i;
; return 0; }
EOF
if eval $ac_compile; then
  rm -rf conftest*