configure

PPPoE在Linux上的源代码

echo $ac_n "checking for ANSI C header files""... $ac_c" 1>&6
echo "configure:872: checking for ANSI C header files" >&5
if eval "test \"`echo '$''{'ac_cv_header_stdc'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 877 "configure"
#include "confdefs.h"
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <float.h>
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:885: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
  rm -rf conftest*
  ac_cv_header_stdc=yes
else
  echo "$ac_err" >&5
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&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 902 "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 920 "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 941 "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
if { (eval echo configure:952: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
then
  :
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -fr conftest*
  ac_cv_header_stdc=no
fi
rm -fr conftest*
fi

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""... $ac_c" 1>&6
echo "configure:976: checking for sys/wait.h that is POSIX.1 compatible" >&5
if eval "test \"`echo '$''{'ac_cv_header_sys_wait_h'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 981 "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() {
int s;
wait (&s);
s = WIFEXITED (s) ? WEXITSTATUS (s) : 1;
; return 0; }
EOF
if { (eval echo configure:997: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  ac_cv_header_sys_wait_h=yes
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  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 sys/dlpi.h sys/ioctl.h sys/time.h syslog.h unistd.h net/if_arp.h netinet/if_ether.h getopt.h sys/uio.h sys/param.h fcntl.h net/bpf.h netpacket/packet.h net/ethernet.h asm/types.h linux/if_packet.h linux/if_ether.h linux/if_pppox.h sys/socket.h sys/cdefs.h linux/if.h net/if.h net/if_dl.h net/if_ether.h net/if_types.h netinet/if_ether.h net/if_types.h net/if_dl.h 
do
ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
echo "configure:1021: checking for $ac_hdr" >&5
if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1026 "configure"
#include "confdefs.h"
#include <$ac_hdr>
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:1031: \"$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
    ac_tr_hdr=HAVE_`echo $ac_hdr | sed 'y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%'`
  cat >> confdefs.h <<EOF
#define $ac_tr_hdr 1
EOF
 
else
  echo "$ac_t""no" 1>&6
fi
done


echo $ac_n "checking for working const""... $ac_c" 1>&6
echo "configure:1059: checking for working const" >&5
if eval "test \"`echo '$''{'ac_cv_c_const'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1064 "configure"
#include "confdefs.h"

int main() {

/* 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 echo configure:1113: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  ac_cv_c_const=yes
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  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 pid_t""... $ac_c" 1>&6
echo "configure:1134: checking for pid_t" >&5
if eval "test \"`echo '$''{'ac_cv_type_pid_t'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1139 "configure"
#include "confdefs.h"
#include <sys/types.h>
#if STDC_HEADERS
#include <stdlib.h>
#include <stddef.h>
#endif
EOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  egrep "(^|[^a-zA-Z_0-9])pid_t[^a-zA-Z_0-9]" >/dev/null 2>&1; then
  rm -rf conftest*
  ac_cv_type_pid_t=yes
else
  rm -rf conftest*
  ac_cv_type_pid_t=no
fi
rm -f conftest*

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

fi

echo $ac_n "checking whether time.h and sys/time.h may both be included""... $ac_c" 1>&6
echo "configure:1167: checking whether time.h and sys/time.h may both be included" >&5
if eval "test \"`echo '$''{'ac_cv_header_time'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1172 "configure"
#include "confdefs.h"
#include <sys/types.h>
#include <sys/time.h>
#include <time.h>
int main() {
struct tm *tp;
; return 0; }
EOF
if { (eval echo configure:1181: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  ac_cv_header_time=yes
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  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""... $ac_c" 1>&6
echo "configure:1202: checking whether struct tm is in sys/time.h or time.h" >&5
if eval "test \"`echo '$''{'ac_cv_struct_tm'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.$ac_ext <<EOF
#line 1207 "configure"
#include "confdefs.h"
#include <sys/types.h>
#include <time.h>
int main() {
struct tm *tp; tp->tm_sec;
; return 0; }
EOF
if { (eval echo configure:1215: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  ac_cv_struct_tm=time.h
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  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


# Extract the first word of "echo", so it can be a program name with args.
set dummy echo; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:1239: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_path_ECHO'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  case "$ECHO" in
  /*)
  ac_cv_path_ECHO="$ECHO" # Let the user override the test with a path.
  ;;
  ?:/*)			 
  ac_cv_path_ECHO="$ECHO" # Let the user override the test with a dos path.
  ;;
  *)
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
  ac_dummy="/usr/ucb/bin:$PATH"
  for ac_dir in $ac_dummy; do 
    test -z "$ac_dir" && ac_dir=.
    if test -f $ac_dir/$ac_word; then
      ac_cv_path_ECHO="$ac_dir/$ac_word"
      break
    fi
  done
  IFS="$ac_save_ifs"
  test -z "$ac_cv_path_ECHO" && ac_cv_path_ECHO=""""
  ;;
esac
fi
ECHO="$ac_cv_path_ECHO"
if test -n "$ECHO"; then
  echo "$ac_t""$ECHO" 1>&6
else
  echo "$ac_t""no" 1>&6
fi


echo $ac_n "checking for struct sockaddr_ll""... $ac_c" 1>&6
echo "configure:1274: checking for struct sockaddr_ll" >&5
cat > conftest.$ac_ext <<EOF
#line 1276 "configure"
#include "confdefs.h"
#include <asm/types.h>
#include <linux/if_packet.h>
#include <linux/if_ether.h>

int main() {
struct sockaddr_ll sa;
; return 0; }
EOF
if { (eval echo configure:1286: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  rm -rf conftest*
  ac_cv_struct_sockaddr_ll=yes
else
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  ac_cv_struct_sockaddr_ll=no
fi
rm -f conftest*
$ECHO $ac_cv_struct_sockaddr_ll
if test "$ac_cv_struct_sockaddr_ll" = yes ; then
cat >> confdefs.h <<\EOF
#define HAVE_STRUCT_SOCKADDR_LL 1
EOF

fi