X-Git-Url: https://git.distorted.org.uk/~mdw/secnet/blobdiff_plain/8dea8d37a13fcc615daba3375809900f04a2e5a2..refs/tags/v0.1.15:/configure

diff --git a/configure b/configure
index fb7aef3..fecb0ca 100755
--- a/configure
+++ b/configure
@@ -523,7 +523,7 @@ fi
 
 
 
-# From configure.in Id
+# From configure.in Id: configure.in
 
 ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
@@ -1124,7 +1124,7 @@ else
 fi
 done
 
-for ac_hdr in linux/if.h
+for ac_hdr in net/if.h net/route.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
@@ -1164,15 +1164,95 @@ else
 fi
 done
 
+for ac_hdr in linux/if.h
+do
+ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
+echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
+echo "configure:1172: 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 1177 "configure"
+#include "confdefs.h"
+#include <$ac_hdr>
+EOF
+ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+{ (eval echo configure:1182: \"$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
+
+for ac_hdr in stropts.h sys/sockio.h net/if_tun.h
+do
+ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
+echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
+echo "configure:1212: 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 1217 "configure"
+#include "confdefs.h"
+#include <$ac_hdr>
+EOF
+ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+{ (eval echo configure:1222: \"$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 whether byte ordering is bigendian""... $ac_c" 1>&6
-echo "configure:1169: checking whether byte ordering is bigendian" >&5
+echo "configure:1249: checking whether byte ordering is bigendian" >&5
 if eval "test \"`echo '$''{'ac_cv_c_bigendian'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_cv_c_bigendian=unknown
 # See if sys/param.h defines the BYTE_ORDER macro.
 cat > conftest.$ac_ext <<EOF
-#line 1176 "configure"
+#line 1256 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/param.h>
@@ -1183,11 +1263,11 @@ int main() {
 #endif
 ; return 0; }
 EOF
-if { (eval echo configure:1187: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1267: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   # It does; now see whether it defined to BIG_ENDIAN or not.
 cat > conftest.$ac_ext <<EOF
-#line 1191 "configure"
+#line 1271 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/param.h>
@@ -1198,7 +1278,7 @@ int main() {
 #endif
 ; return 0; }
 EOF
-if { (eval echo configure:1202: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1282: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_bigendian=yes
 else
@@ -1218,7 +1298,7 @@ if test "$cross_compiling" = yes; then
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 1222 "configure"
+#line 1302 "configure"
 #include "confdefs.h"
 main () {
   /* Are we little or big endian?  From Harbison&Steele.  */
@@ -1231,7 +1311,7 @@ main () {
   exit (u.c[sizeof (long) - 1] == 1);
 }
 EOF
-if { (eval echo configure:1235: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1315: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_c_bigendian=no
 else
@@ -1255,7 +1335,7 @@ EOF
 fi
 
 echo $ac_n "checking size of unsigned long long""... $ac_c" 1>&6
-echo "configure:1259: checking size of unsigned long long" >&5
+echo "configure:1339: checking size of unsigned long long" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_unsigned_long_long'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1263,7 +1343,7 @@ else
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 1267 "configure"
+#line 1347 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 #include <sys/types.h>
@@ -1275,7 +1355,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:1279: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1359: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_unsigned_long_long=`cat conftestval`
 else
@@ -1295,7 +1375,7 @@ EOF
 
 
 echo $ac_n "checking size of unsigned long""... $ac_c" 1>&6
-echo "configure:1299: checking size of unsigned long" >&5
+echo "configure:1379: checking size of unsigned long" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_unsigned_long'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1303,7 +1383,7 @@ else
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 1307 "configure"
+#line 1387 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 #include <sys/types.h>
@@ -1315,7 +1395,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:1319: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1399: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_unsigned_long=`cat conftestval`
 else
@@ -1335,7 +1415,7 @@ EOF
 
 
 echo $ac_n "checking size of unsigned int""... $ac_c" 1>&6
-echo "configure:1339: checking size of unsigned int" >&5
+echo "configure:1419: checking size of unsigned int" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_unsigned_int'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1343,7 +1423,7 @@ else
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 1347 "configure"
+#line 1427 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 #include <sys/types.h>
@@ -1355,7 +1435,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:1359: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1439: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_unsigned_int=`cat conftestval`
 else
@@ -1375,7 +1455,7 @@ EOF
 
 
 echo $ac_n "checking size of unsigned short""... $ac_c" 1>&6
-echo "configure:1379: checking size of unsigned short" >&5
+echo "configure:1459: checking size of unsigned short" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_unsigned_short'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1383,7 +1463,7 @@ else
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 1387 "configure"
+#line 1467 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 #include <sys/types.h>
@@ -1395,7 +1475,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:1399: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1479: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_unsigned_short=`cat conftestval`
 else
@@ -1415,7 +1495,7 @@ EOF
 
 
 echo $ac_n "checking size of unsigned char""... $ac_c" 1>&6
-echo "configure:1419: checking size of unsigned char" >&5
+echo "configure:1499: checking size of unsigned char" >&5
 if eval "test \"`echo '$''{'ac_cv_sizeof_unsigned_char'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1423,7 +1503,7 @@ else
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
   cat > conftest.$ac_ext <<EOF
-#line 1427 "configure"
+#line 1507 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 #include <sys/types.h>
@@ -1435,7 +1515,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:1439: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1519: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_sizeof_unsigned_char=`cat conftestval`
 else
@@ -1455,8 +1535,100 @@ EOF
 
 
 
+    hard=
+  if test -z "$hard"; then
+    msg="C to warn about writing to stringliterals"
+  else
+    msg="C to prohibit any write to stringliterals"
+  fi
+  echo $ac_n "checking $msg""... $ac_c" 1>&6
+echo "configure:1546: checking $msg" >&5
+if eval "test \"`echo '$''{'ac_cv_prog_cc_no_writeable_strings'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  
+  cat > conftest.c <<EOF
+#include <string.h>
+int main (void)
+{
+   char test[16];
+   if (strcpy (test, "test")) return 0;
+   return 1;
+}
+EOF
+    if test "$GCC" = "yes"; 
+  then
+  	if test -z "$hard"; then
+      	    ac_cv_prog_cc_no_writeable_strings="-Wwrite-strings"
+        else
+            ac_cv_prog_cc_no_writeable_strings="-fno-writable-strings -Wwrite-strings"
+        fi
+
+        if test -n "`${CC-cc} -c $ac_cv_prog_cc_no_writeable_strings conftest.c 2>&1`" ; then
+            ac_cv_prog_cc_no_writeable_strings="suppressed: string.h"
+        fi
+
+    elif  $CC -flags 2>&1 | grep "Xc.*strict ANSI C" > /dev/null 2>&1 &&
+	$CC -c -xstrconst conftest.c > /dev/null 2>&1 &&
+	test -f conftest.o 
+  then
+        # strings go into readonly segment
+	ac_cv_prog_cc_no_writeable_strings="-xstrconst"
+
+	rm conftest.o
+        if test -n "`${CC-cc} -c $ac_cv_prog_cc_no_writeable_strings conftest.c 2>&1`" ; then
+             ac_cv_prog_cc_no_writeable_strings="suppressed: string.h"
+        fi
+  
+    elif  $CC > /dev/null 2>&1 &&
+	$CC -c +ESlit conftest.c > /dev/null 2>&1 &&
+	test -f conftest.o 
+  then
+       # strings go into readonly segment
+	ac_cv_prog_cc_no_writeable_strings="+ESlit"
+	
+	rm conftest.o
+        if test -n "`${CC-cc} -c $ac_cv_prog_cc_no_writeable_strings conftest.c 2>&1`" ; then
+             ac_cv_prog_cc_no_writeable_strings="suppressed: string.h"
+        fi
+
+    elif ! $CC > /dev/null 2>&1 &&
+	$CC -c -readonly_strings conftest.c > /dev/null 2>&1 &&
+	test -f conftest.o
+  then	
+       # strings go into readonly segment
+	ac_cv_prog_cc_no_writeable_strings="-readonly_strings"
+	
+	rm conftest.o
+        if test -n "`${CC-cc} -c $ac_cv_prog_cc_no_writeable_strings conftest.c 2>&1`" ; then
+             ac_cv_prog_cc_no_writeable_strings="suppressed: string.h"
+        fi
+
+  
+  	# -use_readonly_const is the default for IRIX C, 
+	# puts them into .rodata, but they are copied later.
+	# need to be "-G0 -rdatashared" for strictmode but
+	# I am not sure what effect that has really.
+
+  fi
+  rm -f conftest.*
+  
+fi
+
+echo "$ac_t""$ac_cv_prog_cc_no_writeable_strings" 1>&6
+  if test -z "$WRITESTRINGS" ; then
+    if test -n "$ac_cv_prog_cc_no_writeable_strings" ; then
+      case "$ac_cv_prog_cc_no_writeable_strings" in
+        suppressed*) WRITESTRINGS="" ;; # known but suppressed
+        *)  WRITESTRINGS="$ac_cv_prog_cc_no_writeable_strings" ;;
+      esac
+    fi
+  fi
+  
+  
+
 echo $ac_n "checking for mpz_init_set_str in -lgmp""... $ac_c" 1>&6
-echo "configure:1460: checking for mpz_init_set_str in -lgmp" >&5
+echo "configure:1632: checking for mpz_init_set_str in -lgmp" >&5
 ac_lib_var=`echo gmp'_'mpz_init_set_str | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1464,7 +1636,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lgmp  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1468 "configure"
+#line 1640 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -1475,7 +1647,7 @@ int main() {
 mpz_init_set_str()
 ; return 0; }
 EOF
-if { (eval echo configure:1479: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1651: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1503,7 +1675,7 @@ else
 fi
 
 echo $ac_n "checking for mpz_init_set_str in -lgmp2""... $ac_c" 1>&6
-echo "configure:1507: checking for mpz_init_set_str in -lgmp2" >&5
+echo "configure:1679: checking for mpz_init_set_str in -lgmp2" >&5
 ac_lib_var=`echo gmp2'_'mpz_init_set_str | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1511,7 +1683,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lgmp2  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1515 "configure"
+#line 1687 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -1522,7 +1694,7 @@ int main() {
 mpz_init_set_str()
 ; return 0; }
 EOF
-if { (eval echo configure:1526: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1698: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1549,8 +1721,55 @@ else
   echo "$ac_t""no" 1>&6
 fi
 
+echo $ac_n "checking for __gmpz_init_set_str in -lgmp""... $ac_c" 1>&6
+echo "configure:1726: checking for __gmpz_init_set_str in -lgmp" >&5
+ac_lib_var=`echo gmp'_'__gmpz_init_set_str | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_save_LIBS="$LIBS"
+LIBS="-lgmp  $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 1734 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char __gmpz_init_set_str();
+
+int main() {
+__gmpz_init_set_str()
+; return 0; }
+EOF
+if { (eval echo configure:1745: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+    ac_tr_lib=HAVE_LIB`echo gmp | sed -e 's/[^a-zA-Z0-9_]/_/g' \
+    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
+  cat >> confdefs.h <<EOF
+#define $ac_tr_lib 1
+EOF
+
+  LIBS="-lgmp $LIBS"
+
+else
+  echo "$ac_t""no" 1>&6
+fi
+
 echo $ac_n "checking for yywrap in -lfl""... $ac_c" 1>&6
-echo "configure:1554: checking for yywrap in -lfl" >&5
+echo "configure:1773: checking for yywrap in -lfl" >&5
 ac_lib_var=`echo fl'_'yywrap | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1558,7 +1777,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lfl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1562 "configure"
+#line 1781 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -1569,7 +1788,7 @@ int main() {
 yywrap()
 ; return 0; }
 EOF
-if { (eval echo configure:1573: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1792: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1596,27 +1815,27 @@ else
   echo "$ac_t""no" 1>&6
 fi
 
-echo $ac_n "checking for adns_init in -ladns""... $ac_c" 1>&6
-echo "configure:1601: checking for adns_init in -ladns" >&5
-ac_lib_var=`echo adns'_'adns_init | sed 'y%./+-%__p_%'`
+echo $ac_n "checking for inet_ntoa in -lnsl""... $ac_c" 1>&6
+echo "configure:1820: checking for inet_ntoa in -lnsl" >&5
+ac_lib_var=`echo nsl'_'inet_ntoa | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_save_LIBS="$LIBS"
-LIBS="-ladns  $LIBS"
+LIBS="-lnsl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1609 "configure"
+#line 1828 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
     builtin and then its argument prototype would still apply.  */
-char adns_init();
+char inet_ntoa();
 
 int main() {
-adns_init()
+inet_ntoa()
 ; return 0; }
 EOF
-if { (eval echo configure:1620: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1839: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1631,20 +1850,20 @@ LIBS="$ac_save_LIBS"
 fi
 if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
   echo "$ac_t""yes" 1>&6
-    ac_tr_lib=HAVE_LIB`echo adns | sed -e 's/[^a-zA-Z0-9_]/_/g' \
+    ac_tr_lib=HAVE_LIB`echo nsl | sed -e 's/[^a-zA-Z0-9_]/_/g' \
     -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
   cat >> confdefs.h <<EOF
 #define $ac_tr_lib 1
 EOF
 
-  LIBS="-ladns $LIBS"
+  LIBS="-lnsl $LIBS"
 
 else
   echo "$ac_t""no" 1>&6
 fi
 
 echo $ac_n "checking for getopt_long in -lgetopt""... $ac_c" 1>&6
-echo "configure:1648: checking for getopt_long in -lgetopt" >&5
+echo "configure:1867: checking for getopt_long in -lgetopt" >&5
 ac_lib_var=`echo getopt'_'getopt_long | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1652,7 +1871,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lgetopt  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1656 "configure"
+#line 1875 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -1663,7 +1882,7 @@ int main() {
 getopt_long()
 ; return 0; }
 EOF
-if { (eval echo configure:1667: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1886: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1691,7 +1910,7 @@ else
 fi
 
 echo $ac_n "checking for getopt_long in -lgnugetopt""... $ac_c" 1>&6
-echo "configure:1695: checking for getopt_long in -lgnugetopt" >&5
+echo "configure:1914: checking for getopt_long in -lgnugetopt" >&5
 ac_lib_var=`echo gnugetopt'_'getopt_long | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1699,7 +1918,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lgnugetopt  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1703 "configure"
+#line 1922 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -1710,7 +1929,7 @@ int main() {
 getopt_long()
 ; return 0; }
 EOF
-if { (eval echo configure:1714: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1933: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1737,17 +1956,158 @@ else
   echo "$ac_t""no" 1>&6
 fi
 
+echo $ac_n "checking for socket in -lsocket""... $ac_c" 1>&6
+echo "configure:1961: checking for socket in -lsocket" >&5
+ac_lib_var=`echo socket'_'socket | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_save_LIBS="$LIBS"
+LIBS="-lsocket  $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 1969 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char socket();
+
+int main() {
+socket()
+; return 0; }
+EOF
+if { (eval echo configure:1980: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+    ac_tr_lib=HAVE_LIB`echo socket | sed -e 's/[^a-zA-Z0-9_]/_/g' \
+    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
+  cat >> confdefs.h <<EOF
+#define $ac_tr_lib 1
+EOF
+
+  LIBS="-lsocket $LIBS"
+
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+echo $ac_n "checking for inet_aton in -lresolv""... $ac_c" 1>&6
+echo "configure:2008: checking for inet_aton in -lresolv" >&5
+ac_lib_var=`echo resolv'_'inet_aton | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_save_LIBS="$LIBS"
+LIBS="-lresolv  $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 2016 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char inet_aton();
+
+int main() {
+inet_aton()
+; return 0; }
+EOF
+if { (eval echo configure:2027: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+    ac_tr_lib=HAVE_LIB`echo resolv | sed -e 's/[^a-zA-Z0-9_]/_/g' \
+    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
+  cat >> confdefs.h <<EOF
+#define $ac_tr_lib 1
+EOF
+
+  LIBS="-lresolv $LIBS"
+
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+echo $ac_n "checking for adns_init in -ladns""... $ac_c" 1>&6
+echo "configure:2055: checking for adns_init in -ladns" >&5
+ac_lib_var=`echo adns'_'adns_init | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_save_LIBS="$LIBS"
+LIBS="-ladns  $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 2063 "configure"
+#include "confdefs.h"
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char adns_init();
+
+int main() {
+adns_init()
+; return 0; }
+EOF
+if { (eval echo configure:2074: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=yes"
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+    ac_tr_lib=HAVE_LIB`echo adns | sed -e 's/[^a-zA-Z0-9_]/_/g' \
+    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
+  cat >> confdefs.h <<EOF
+#define $ac_tr_lib 1
+EOF
+
+  LIBS="-ladns $LIBS"
+
+else
+  echo "$ac_t""no" 1>&6
+fi
+
 
 
 for ac_func in getopt_long 
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:1746: checking for $ac_func" >&5
+echo "configure:2106: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1751 "configure"
+#line 2111 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -1770,7 +2130,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:1774: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2134: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -1798,12 +2158,12 @@ done
 for ac_func in snprintf 
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:1802: checking for $ac_func" >&5
+echo "configure:2162: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1807 "configure"
+#line 2167 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -1826,7 +2186,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:1830: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2190: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -1854,19 +2214,19 @@ done
 # The Ultrix 4.2 mips builtin alloca declared by alloca.h only works
 # for constant arguments.  Useless!
 echo $ac_n "checking for working alloca.h""... $ac_c" 1>&6
-echo "configure:1858: checking for working alloca.h" >&5
+echo "configure:2218: checking for working alloca.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_alloca_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1863 "configure"
+#line 2223 "configure"
 #include "confdefs.h"
 #include <alloca.h>
 int main() {
 char *p = alloca(2 * sizeof(int));
 ; return 0; }
 EOF
-if { (eval echo configure:1870: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2230: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ac_cv_header_alloca_h=yes
 else
@@ -1887,12 +2247,12 @@ EOF
 fi
 
 echo $ac_n "checking for alloca""... $ac_c" 1>&6
-echo "configure:1891: checking for alloca" >&5
+echo "configure:2251: checking for alloca" >&5
 if eval "test \"`echo '$''{'ac_cv_func_alloca_works'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1896 "configure"
+#line 2256 "configure"
 #include "confdefs.h"
 
 #ifdef __GNUC__
@@ -1920,7 +2280,7 @@ int main() {
 char *p = (char *) alloca(1);
 ; return 0; }
 EOF
-if { (eval echo configure:1924: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2284: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ac_cv_func_alloca_works=yes
 else
@@ -1952,12 +2312,12 @@ EOF
 
 
 echo $ac_n "checking whether alloca needs Cray hooks""... $ac_c" 1>&6
-echo "configure:1956: checking whether alloca needs Cray hooks" >&5
+echo "configure:2316: checking whether alloca needs Cray hooks" >&5
 if eval "test \"`echo '$''{'ac_cv_os_cray'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1961 "configure"
+#line 2321 "configure"
 #include "confdefs.h"
 #if defined(CRAY) && ! defined(CRAY2)
 webecray
@@ -1982,12 +2342,12 @@ echo "$ac_t""$ac_cv_os_cray" 1>&6
 if test $ac_cv_os_cray = yes; then
 for ac_func in _getb67 GETB67 getb67; do
   echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:1986: checking for $ac_func" >&5
+echo "configure:2346: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1991 "configure"
+#line 2351 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2010,7 +2370,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2014: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2374: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -2037,7 +2397,7 @@ done
 fi
 
 echo $ac_n "checking stack direction for C alloca""... $ac_c" 1>&6
-echo "configure:2041: checking stack direction for C alloca" >&5
+echo "configure:2401: checking stack direction for C alloca" >&5
 if eval "test \"`echo '$''{'ac_cv_c_stack_direction'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -2045,7 +2405,7 @@ else
   ac_cv_c_stack_direction=0
 else
   cat > conftest.$ac_ext <<EOF
-#line 2049 "configure"
+#line 2409 "configure"
 #include "confdefs.h"
 find_stack_direction ()
 {
@@ -2064,7 +2424,7 @@ main ()
   exit (find_stack_direction() < 0);
 }
 EOF
-if { (eval echo configure:2068: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:2428: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_c_stack_direction=1
 else
@@ -2226,6 +2586,7 @@ s%@INSTALL_SCRIPT@%$INSTALL_SCRIPT%g
 s%@INSTALL_DATA@%$INSTALL_DATA%g
 s%@RM@%$RM%g
 s%@CPP@%$CPP%g
+s%@WRITESTRINGS@%$WRITESTRINGS%g
 s%@LIBOBJS@%$LIBOBJS%g
 s%@ALLOCA@%$ALLOCA%g