improved Digital UNIX detection

configure

 #! /bin/sh
 
-# From configure.in Revision: 1.5 
+# From configure.in Revision: 1.6 
 
 # Guess values for system-dependent variables and create Makefiles.
 # Generated automatically using autoconf version 2.12 
@@ -1175,10 +1175,58 @@ EOF
 
 else
   echo "$ac_t""no" 1>&6
+echo $ac_n "checking for __pthread_create in -lpthread""... $ac_c" 1>&6
+echo "configure:1180: checking for __pthread_create in -lpthread" >&5
+ac_lib_var=`echo pthread'_'__pthread_create | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_save_LIBS="$LIBS"
+LIBS="-lpthread  $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 1188 "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 __pthread_create();
+
+int main() {
+__pthread_create()
+; return 0; }
+EOF
+if { (eval echo configure:1199: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+  rm -rf conftest*
+  eval "ac_cv_lib_$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 pthread | sed -e 's/^a-zA-Z0-9_/_/g' \
+    -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'`
+  cat >> confdefs.h <<EOF
+#define $ac_tr_lib 1
+EOF
+
+  LIBS="-lpthread $LIBS"
+
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+
 fi
 
 echo $ac_n "checking for socket in -lxnet""... $ac_c" 1>&6
-echo "configure:1182: checking for socket in -lxnet" >&5
+echo "configure:1230: checking for socket in -lxnet" >&5
 ac_lib_var=`echo xnet'_'socket | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1186,7 +1234,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lxnet  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1190 "configure"
+#line 1238 "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
@@ -1197,7 +1245,7 @@ int main() {
 socket()
 ; return 0; }
 EOF
-if { (eval echo configure:1201: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:1249: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1223,7 +1271,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for socket in -lsocket""... $ac_c" 1>&6
-echo "configure:1227: checking for socket in -lsocket" >&5
+echo "configure:1275: checking for socket in -lsocket" >&5
 ac_lib_var=`echo socket'_'socket | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1231,7 +1279,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1235 "configure"
+#line 1283 "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
@@ -1242,7 +1290,7 @@ int main() {
 socket()
 ; return 0; }
 EOF
-if { (eval echo configure:1246: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:1294: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1270,7 +1318,7 @@ else
 fi
 
 	     echo $ac_n "checking for inet_ntoa in -lnsl""... $ac_c" 1>&6
-echo "configure:1274: checking for inet_ntoa in -lnsl" >&5
+echo "configure:1322: checking for inet_ntoa in -lnsl" >&5
 ac_lib_var=`echo nsl'_'inet_ntoa | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1278,7 +1326,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lnsl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1282 "configure"
+#line 1330 "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
@@ -1289,7 +1337,7 @@ int main() {
 inet_ntoa()
 ; return 0; }
 EOF
-if { (eval echo configure:1293: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:1341: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1320,7 +1368,7 @@ fi
 fi
 
 echo $ac_n "checking whether ${MAKE-make} sets \${MAKE}""... $ac_c" 1>&6
-echo "configure:1324: checking whether ${MAKE-make} sets \${MAKE}" >&5
+echo "configure:1372: checking whether ${MAKE-make} sets \${MAKE}" >&5
 set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_prog_make_${ac_make}_set'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1349,7 +1397,7 @@ fi
 # Extract the first word of "ranlib", so it can be a program name with args.
 set dummy ranlib; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1353: checking for $ac_word" >&5
+echo "configure:1401: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -1386,7 +1434,7 @@ fi
 # SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
 # ./install, which can be erroneously created by make from ./install.sh.
 echo $ac_n "checking for a BSD compatible install""... $ac_c" 1>&6
-echo "configure:1390: checking for a BSD compatible install" >&5
+echo "configure:1438: checking for a BSD compatible install" >&5
 if test -z "$INSTALL"; then
 if eval "test \"`echo '$''{'ac_cv_path_install'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1453,7 +1501,7 @@ else
 	STD_CDEFINES=
 	STD_CWARNINGS=
 	case "$host" in
-		*-dec-osf1*)
+		*-dec-osf*)
 			CFLAGS="$CFLAGS -pthread"
 			;;
 		*-sun-solaris*)

configure.in

 
-AC_REVISION($Revision: 1.5 $)
+AC_REVISION($Revision: 1.6 $)
 
 AC_INIT(lib/dns/name.c)
 AC_CONFIG_HEADER(config.h)
@@ -16,7 +16,9 @@ AC_C_INLINE
 AC_TYPE_SIZE_T
 AC_HEADER_TIME
 
-AC_CHECK_LIB(pthread, pthread_create)
+AC_CHECK_LIB(pthread, pthread_create,,
+             AC_CHECK_LIB(pthread, __pthread_create)
+)
 AC_CHECK_LIB(xnet, socket,,
 	     AC_CHECK_LIB(socket, socket)
 	     AC_CHECK_LIB(nsl, inet_ntoa)
@@ -42,7 +44,7 @@ else
 	STD_CDEFINES=
 	STD_CWARNINGS=
 	case "$host" in
-		*-dec-osf1*)
+		*-dec-osf*)
 			CFLAGS="$CFLAGS -pthread"
 			;;
 		*-sun-solaris*)