FindBin.pm on Win32 systems
[p5sagit/p5-mst-13.2.git] / Configure
index d6e9555..7070d4f 100755 (executable)
--- a/Configure
+++ b/Configure
@@ -20,7 +20,7 @@
 
 # $Id: Head.U,v 3.0.1.9 1997/02/28 15:02:09 ram Exp $
 #
-# Generated on Mon Nov  2 13:57:54 EET 1998 [metaconfig 3.0 PL70]
+# Generated on Thu Dec  3 10:57:23 EET 1998 [metaconfig 3.0 PL70]
 # (with additional metaconfig patches by jhi@iki.fi)
 
 cat >/tmp/c1$$ <<EOF
@@ -409,8 +409,8 @@ d_pause=''
 d_pipe=''
 d_poll=''
 d_portable=''
-d_pthread_create_joinable=''
-pthread_create_joinable=''
+d_old_pthread_create_joinable=''
+old_pthread_create_joinable=''
 d_pthread_yield=''
 d_sched_yield=''
 sched_yield=''
@@ -419,6 +419,7 @@ d_rewinddir=''
 d_seekdir=''
 d_telldir=''
 d_readlink=''
+d_readv=''
 d_rename=''
 d_rmdir=''
 d_safebcpy=''
@@ -464,7 +465,17 @@ d_shmdt=''
 d_shmget=''
 d_sigaction=''
 d_sigsetjmp=''
+d_cmsghdr_s=''
+d_msg_ctrunc=''
+d_msg_dontroute=''
+d_msg_oob=''
+d_msg_peek=''
+d_msg_proxy=''
+d_msghdr_s=''
 d_oldsock=''
+d_recvmsg=''
+d_scm_rights=''
+d_sendmsg=''
 d_socket=''
 d_sockpair=''
 sockethdr=''
@@ -518,6 +529,7 @@ d_wait4=''
 d_waitpid=''
 d_wcstombs=''
 d_wctomb=''
+d_writev=''
 d_dbmclose64=''
 d_dbminit64=''
 d_delete64=''
@@ -568,6 +580,7 @@ i_netdb=''
 i_neterrno=''
 i_niin=''
 i_sysin=''
+i_poll=''
 d_pwage=''
 d_pwchange=''
 d_pwclass=''
@@ -598,6 +611,8 @@ i_sysselct=''
 i_sysstat=''
 i_systimes=''
 i_systypes=''
+d_iovec_s=''
+i_sysuio=''
 i_sysun=''
 i_syswait=''
 i_sgtty=''
@@ -617,8 +632,8 @@ i_vfork=''
 intsize=''
 longsize=''
 shortsize=''
-d_dirent64s=''
-d_flock64s=''
+d_dirent64_s=''
+d_flock64_s=''
 d_fstat64=''
 d_ftruncate64=''
 d_ino64t=''
@@ -878,6 +893,7 @@ archobjs=''
 groupstype=''
 : default library list
 libswanted=''
+: some systems want to use only the non-versioned libso:s
 ignore_versioned_solibs=''
 : full support for void wanted by default
 defvoidused=15
@@ -2082,7 +2098,7 @@ EOM
                        osvers="$3"
                        ;;
                dynixptx*) osname=dynixptx
-                       osvers="$3"
+                       osvers=`echo "$4"|sed 's/^v//'`
                        ;;
                freebsd) osname=freebsd 
                        osvers="$3" ;;
@@ -4133,7 +4149,7 @@ $cat >try.msg <<'EOM'
 I've tried to compile and run the following simple program:
 
 EOM
-$cat try.c
+$cat try.c >> try.msg
 
 $cat >> try.msg <<EOM
 
@@ -5076,6 +5092,10 @@ EOM
     esac
 
        : Try to guess additional flags to pick up local libraries.
+       : Be careful not to append to a plain 'none'
+       case "$dflt" in
+       none) dflt='' ;;
+       esac
        for thisflag in $ldflags; do
                case "$thisflag" in
                -L*)
@@ -5192,7 +5212,7 @@ EOM
 To build perl, you must add the current working directory to your
 $xxx environment variable before running make.  You can do
 this with
-   $xxx=\`pwd\`; export $xxx
+   $xxx=\`pwd\`:\$$xxx; export $xxx
 for Bourne-style shells, or
    setenv $xxx \`pwd\`
 for Csh-style shells.  You *MUST* do this before running make.
@@ -6733,6 +6753,147 @@ eval $inlibc
 set chsize d_chsize
 eval $inlibc
 
+hasfield='varname=$1; struct=$2; field=$3; shift; shift; shift;
+while $test $# -ge 2; do
+       case "$1" in
+       $define) echo "#include <$2>";;
+       esac ;
+    shift 2;
+done > try.c;
+echo "int main () { struct $struct foo; foo.$field = 0; }" >> try.c;
+if eval $cc $optimize $ccflags -c try.c >/dev/null 2>&1; then
+       val="$define";
+else
+       val="$undef";
+fi;
+set $varname;
+eval $setvar;
+$rm -f try.c try.o'
+
+: see if this is a sys/uio.h system
+set sys/uio.h i_sysuio
+eval $inhdr
+
+echo "Checking to see if your system supports struct iovec..." >&4
+set d_iovec_s iovec iov_base $i_sysuio sys/uio.h
+eval $hasfield
+case "$d_iovec_s" in
+"$define")      echo "Yup, it does." >&4
+                ;;
+*)              echo "Nope, it doesn't." >&4
+                ;;
+esac
+
+socketlib=''
+sockethdr=''
+: see whether socket exists
+echo " "
+$echo $n "Hmm... $c" >&4
+if set socket val -f d_socket; eval $csym; $val; then
+       echo "Looks like you have Berkeley networking support." >&4
+       d_socket="$define"
+       if set setsockopt val -f; eval $csym; $val; then
+               d_oldsock="$undef"
+       else
+               echo "...but it uses the old BSD 4.1c interface, rather than 4.2." >&4
+               d_oldsock="$define"
+       fi
+else
+       if $contains socklib libc.list >/dev/null 2>&1; then
+               echo "Looks like you have Berkeley networking support." >&4
+               d_socket="$define"
+               : we will have to assume that it supports the 4.2 BSD interface
+               d_oldsock="$undef"
+       else
+               echo "You don't have Berkeley networking in libc$_a..." >&4
+               if test "X$d_socket" = "X$define"; then
+                  echo "...but you seem to believe that you have sockets." >&4
+               else
+                       for net in net socket
+                       do
+                               if test -f /usr/lib/lib$net$_a; then
+                                       ( ($nm $nm_opt /usr/lib/lib$net$_a | eval $nm_extract) ||  \
+                                       $ar t /usr/lib/lib$net$_a) 2>/dev/null >> libc.list
+                                       if $contains socket libc.list >/dev/null 2>&1; then
+                                               d_socket="$define"
+                                               socketlib="-l$net"
+                                               case "$net" in
+                                               net)
+                                                       echo "...but the Wollongong group seems to have hacked it in." >&4
+                                                       sockethdr="-I/usr/netinclude"
+                                                       ;;
+                                               esac
+                                               echo "Found Berkeley sockets interface in lib$net." >& 4 
+                                               if $contains setsockopt libc.list >/dev/null 2>&1; then
+                                                       d_oldsock="$undef"
+                                               else
+                                                       echo "...using the old BSD 4.1c interface, rather than 4.2." >&4
+                                                       d_oldsock="$define"
+                                               fi
+                                               break
+                                       fi
+                               fi
+                       done
+                       if test "X$d_socket" != "X$define"; then
+                          echo "or anywhere else I see." >&4
+                          d_socket="$undef"
+                          d_oldsock="$undef"
+                       fi
+               fi
+       fi
+fi
+
+: see if socketpair exists
+set socketpair d_sockpair
+eval $inlibc
+
+
+echo " "
+echo "Checking the availability of certain socket constants..." >& 4
+for ENUM in MSG_CTRUNC MSG_DONTROUTE MSG_OOB MSG_PEEK MSG_PROXY SCM_RIGHTS; do
+       enum=`$echo $ENUM|./tr '[A-Z]' '[a-z]'`
+       $cat >try.c <<EOF
+#include <sys/types.h>
+#include <sys/socket.h>
+int main() {
+    int i = $ENUM;
+}
+EOF
+       val="$undef"
+       set try; if eval $compile; then
+               val="$define"
+       fi
+       set d_${enum}; eval $setvar
+       $rm -f try.c try
+done
+
+set sendmsg d_sendmsg
+eval $inlibc
+
+set recvmsg d_recvmsg
+eval $inlibc
+
+echo " "
+$echo $n "Checking to see if your system supports struct msghdr...$c" >&4
+set d_msghdr_s msghdr msg_name define sys/types.h $d_socket sys/socket.h $i_sysuio sys/uio.h
+eval $hasfield
+case "$d_msghdr_s" in
+"$define")      echo "Yup, it does." >&4
+                ;;
+*)              echo "Nope, it doesn't." >&4
+                ;;
+esac
+
+$echo $n "Checking to see if your system supports struct cmsghdr...$c" >&4
+set d_cmsghdr_s cmsghdr cmsg_len define sys/types.h $d_socket sys/socket.h $i_sysuio sys/uio.h
+eval $hasfield
+case "$d_cmsghdr_s" in
+"$define")      echo "Yup, it does." >&4
+                ;;
+*)              echo "Nope, it doesn't." >&4
+                ;;
+esac
+
 : check for const keyword
 echo " "
 echo 'Checking to see if your C compiler knows about "const"...' >&4
@@ -6787,6 +6948,18 @@ fi
 set d_crypt
 eval $setvar
 
+: get csh whereabouts
+case "$csh" in
+'csh') val="$undef" ;;
+*) val="$define" ;;
+esac
+set d_csh
+eval $setvar
+: Respect a hint or command line value for full_csh.
+case "$full_csh" in
+'') full_csh=$csh ;;
+esac
+
 : see if cuserid exists
 set cuserid d_cuserid
 eval $inlibc
@@ -6940,23 +7113,6 @@ set d_dirnamlen
 eval $setvar
 $rm -f try.c
 
-hasfield='varname=$1; struct=$2; field=$3; shift; shift; shift;
-while $test $# -ge 2; do
-       case "$1" in
-       $define) echo "#include <$2>";;
-       esac ;
-    shift 2;
-done > try.c;
-echo "int main () { struct $struct foo; foo.$field = 0; }" >> try.c;
-if eval $cc $optimize $ccflags -c try.c >/dev/null 2>&1; then
-       val="$define";
-else
-       val="$undef";
-fi;
-set $varname;
-eval $setvar;
-$rm -f try.c try.o'
-
 
 if $test X"$use64bits" = X"$define"; then
        : see if fstat64 exists
@@ -7054,14 +7210,14 @@ EOCP
        echo " "
        echo "Checking to see if your system supports struct flock64..." >&4
        if $h_fcntl; then
-               set d_flock64s flock64 l_len define fcntl.h
+               set d_flock64_s flock64 l_len define fcntl.h
                eval $hasfield
        else
                val="$undef"
-               set d_flock64s
+               set d_flock64_s
                eval $setvar
        fi
-       case "$d_flock64s" in
+       case "$d_flock64_s" in
        "$define")      echo "Yup, it does." >&4
                        ;;
        *)              echo "Nope, it doesn't." >&4
@@ -7071,9 +7227,9 @@ EOCP
        : check for struct dirent64
        echo " "
        echo "Checking to see if your system supports struct dirent64..." >&4
-       set d_dirent64s dirent64 d_off $i_dirent dirent.h
+       set d_dirent64_s dirent64 d_off $i_dirent dirent.h
        eval $hasfield
-       case "$d_flock64s" in
+       case "$d_dirent64_s" in
        "$define")      echo "Yup, it does." >&4
                        ;;
        *)              echo "Nope, it doesn't." >&4
@@ -7082,7 +7238,7 @@ EOCP
 
 else
        val="$undef"
-       for xxx in d_fstat64 d_ftruncate64 d_lockf64 d_lseek64 d_lstat64 d_open64 d_opendir64 d_readdir64 d_seekdir64 d_stat64 d_telldir64 d_truncate64 d_off64t d_ino64t d_flock64s d_dirent64s
+       for xxx in d_fstat64 d_ftruncate64 d_lockf64 d_lseek64 d_lstat64 d_open64 d_opendir64 d_readdir64 d_seekdir64 d_stat64 d_telldir64 d_truncate64 d_off64t d_ino64t d_flock64_s d_dirent64_s
        do
                set $xxx
                eval $setvar
@@ -7500,63 +7656,225 @@ eval $inlibc
 set fcntl d_fcntl
 eval $inlibc
 
-: see if fgetpos exists
-set fgetpos d_fgetpos
-eval $inlibc
-
-
-if $test X"$use64bits" = X"$define"; then
-       : see if fgetpos64 exists
-       set fgetpos64 d_fgetpos64
-       eval $inlibc
-
-       : see if fopen64 exists
-       set freopen64 d_fopen64
-       eval $inlibc
-
-       : see if freopen64 exists
-       set freopen64 d_freopen64
-       eval $inlibc
-
-       : see if fseek64 exists
-       set fseek64 d_fseek64
-       eval $inlibc
-
-       : see if fseeko64 exists
-       set fseeko64 d_fseeko64
-       eval $inlibc
-
-       : see if fsetpos64 exists
-       set fsetpos64 d_fsetpos64
-       eval $inlibc
-
-       : see if ftell64 exists
-       set ftell64 d_ftell64
-       eval $inlibc
-
-       : see if ftello64 exists
-       set ftello64 d_ftello64
-       eval $inlibc
+: see if sys/select.h has to be included
+set sys/select.h i_sysselct
+eval $inhdr
 
-       : see if tmpfile64 exists
-       set tmpfile64 d_tmpfile64
-       eval $inlibc
-else
-       val="$undef"
-       for xxx in d_fgetpos64 d_fopen64 d_freopen64 d_fseek64 d_fseeko64 d_fsetpos64 d_ftell64 d_ftello64 d_tmpfile64
-       do
-               set $xxx
-               eval $setvar
+: see if we should include time.h, sys/time.h, or both
+echo " "
+if test "X$timeincl" = X; then
+       echo "Testing to see if we should include <time.h>, <sys/time.h> or both." >&4
+       $echo $n "I'm now running the test program...$c"
+       $cat >try.c <<'EOCP'
+#include <sys/types.h>
+#ifdef I_TIME
+#include <time.h>
+#endif
+#ifdef I_SYSTIME
+#ifdef SYSTIMEKERNEL
+#define KERNEL
+#endif
+#include <sys/time.h>
+#endif
+#ifdef I_SYSSELECT
+#include <sys/select.h>
+#endif
+main()
+{
+       struct tm foo;
+#ifdef S_TIMEVAL
+       struct timeval bar;
+#endif
+#ifdef S_TIMEZONE
+       struct timezone tzp;
+#endif
+       if (foo.tm_sec == foo.tm_sec)
+               exit(0);
+#ifdef S_TIMEVAL
+       if (bar.tv_sec == bar.tv_sec)
+               exit(0);
+#endif
+       exit(1);
+}
+EOCP
+       flags=''
+       for s_timezone in '-DS_TIMEZONE' ''; do
+       sysselect=''
+       for s_timeval in '-DS_TIMEVAL' ''; do
+       for i_systimek in '' '-DSYSTIMEKERNEL'; do
+       for i_time in '' '-DI_TIME'; do
+       for i_systime in '-DI_SYSTIME' ''; do
+               case "$flags" in
+               '') $echo $n ".$c"
+                       set try $i_time $i_systime $i_systimek $sysselect $s_timeval $s_timezone
+                       if eval $compile; then
+                               set X $i_time $i_systime $i_systimek $sysselect $s_timeval
+                               shift
+                               flags="$*"
+                               echo " "
+                               $echo $n "Succeeded with $flags$c"
+                       fi
+                       ;;
+               esac
+       done
        done
+       done
+       done
+       done
+       timeincl=''
+       echo " "
+       case "$flags" in
+       *SYSTIMEKERNEL*) i_systimek="$define"
+               timeincl=`./findhdr sys/time.h`
+               echo "We'll include <sys/time.h> with KERNEL defined." >&4;;
+       *) i_systimek="$undef";;
+       esac
+       case "$flags" in
+       *I_TIME*) i_time="$define"
+               timeincl=`./findhdr time.h`" $timeincl"
+               echo "We'll include <time.h>." >&4;;
+       *) i_time="$undef";;
+       esac
+       case "$flags" in
+       *I_SYSTIME*) i_systime="$define"
+               timeincl=`./findhdr sys/time.h`" $timeincl"
+               echo "We'll include <sys/time.h>." >&4;;
+       *) i_systime="$undef";;
+       esac
+       $rm -f try.c try
 fi
 
-: see if flock exists
-set flock d_flock
-eval $inlibc
+: check for fd_set items
+$cat <<EOM
 
-: see if fork exists
-set fork d_fork
-eval $inlibc
+Checking to see how well your C compiler handles fd_set and friends ...
+EOM
+$cat >fd_set.c <<EOCP
+#$i_systime I_SYS_TIME
+#$i_sysselct I_SYS_SELECT
+#$d_socket HAS_SOCKET
+#include <sys/types.h>
+#ifdef HAS_SOCKET
+#include <sys/socket.h> /* Might include <sys/bsdtypes.h> */
+#endif
+#ifdef I_SYS_TIME
+#include <sys/time.h>
+#endif
+#ifdef I_SYS_SELECT
+#include <sys/select.h>
+#endif
+main() {
+       fd_set fds;
+
+#ifdef TRYBITS
+       if(fds.fds_bits);
+#endif
+
+#if defined(FD_SET) && defined(FD_CLR) && defined(FD_ISSET) && defined(FD_ZERO)
+       exit(0);
+#else
+       exit(1);
+#endif
+}
+EOCP
+set fd_set -DTRYBITS
+if eval $compile; then
+       d_fds_bits="$define"
+       d_fd_set="$define"
+       echo "Well, your system knows about the normal fd_set typedef..." >&4
+       if ./fd_set; then
+               echo "and you have the normal fd_set macros (just as I'd expect)." >&4
+               d_fd_macros="$define"
+       else
+               $cat >&4 <<'EOM'
+but not the normal fd_set macros!  Gaaack!  I'll have to cover for you.
+EOM
+               d_fd_macros="$undef"
+       fi
+else
+       $cat <<'EOM'
+Hmm, your compiler has some difficulty with fd_set.  Checking further...
+EOM
+       set fd_set
+       if eval $compile; then
+               d_fds_bits="$undef"
+               d_fd_set="$define"
+               echo "Well, your system has some sort of fd_set available..." >&4
+               if ./fd_set; then
+                       echo "and you have the normal fd_set macros." >&4
+                       d_fd_macros="$define"
+               else
+                       $cat <<'EOM'
+but not the normal fd_set macros!  Gross!  More work for me...
+EOM
+                       d_fd_macros="$undef"
+               fi
+       else
+       echo "Well, you got zip.  That's OK, I can roll my own fd_set stuff." >&4
+               d_fd_set="$undef"
+               d_fds_bits="$undef"
+               d_fd_macros="$undef"
+       fi
+fi
+$rm -f fd_set*
+
+: see if fgetpos exists
+set fgetpos d_fgetpos
+eval $inlibc
+
+
+if $test X"$use64bits" = X"$define"; then
+       : see if fgetpos64 exists
+       set fgetpos64 d_fgetpos64
+       eval $inlibc
+
+       : see if fopen64 exists
+       set freopen64 d_fopen64
+       eval $inlibc
+
+       : see if freopen64 exists
+       set freopen64 d_freopen64
+       eval $inlibc
+
+       : see if fseek64 exists
+       set fseek64 d_fseek64
+       eval $inlibc
+
+       : see if fseeko64 exists
+       set fseeko64 d_fseeko64
+       eval $inlibc
+
+       : see if fsetpos64 exists
+       set fsetpos64 d_fsetpos64
+       eval $inlibc
+
+       : see if ftell64 exists
+       set ftell64 d_ftell64
+       eval $inlibc
+
+       : see if ftello64 exists
+       set ftello64 d_ftello64
+       eval $inlibc
+
+       : see if tmpfile64 exists
+       set tmpfile64 d_tmpfile64
+       eval $inlibc
+else
+       val="$undef"
+       for xxx in d_fgetpos64 d_fopen64 d_freopen64 d_fseek64 d_fseeko64 d_fsetpos64 d_ftell64 d_ftello64 d_tmpfile64
+       do
+               set $xxx
+               eval $setvar
+       done
+fi
+
+: see if flock exists
+set flock d_flock
+eval $inlibc
+
+: see if fork exists
+set fork d_fork
+eval $inlibc
 
 : see if pathconf exists
 set pathconf d_pathconf
@@ -7594,6 +7912,89 @@ eval $inlibc
 set gethostent d_gethent
 eval $inlibc
 
+: see how we will look up host name
+echo " "
+if false; then
+       : dummy stub to allow use of elif
+elif set gethostname val -f d_gethname; eval $csym; $val; then
+       echo 'gethostname() found.' >&4
+       d_gethname="$define"
+       call=gethostname
+elif set uname val -f d_uname; eval $csym; $val; then
+       if ./xenix; then
+               $cat <<'EOM'
+uname() was found, but you're running xenix, and older versions of xenix
+have a broken uname(). If you don't really know whether your xenix is old
+enough to have a broken system call, use the default answer.
+
+EOM
+               dflt=y
+               case "$d_uname" in
+               "$define") dflt=n;;
+               esac
+               rp='Is your uname() broken?'
+               . ./myread
+               case "$ans" in
+               n*) d_uname="$define"; call=uname;;
+               esac
+       else
+               echo 'uname() found.' >&4
+               d_uname="$define"
+               call=uname
+       fi
+fi
+case "$d_gethname" in
+'') d_gethname="$undef";;
+esac
+case "$d_uname" in
+'') d_uname="$undef";;
+esac
+case "$d_uname$d_gethname" in
+*define*)
+       dflt=n
+       cat <<EOM
+Every now and then someone has a $call() that lies about the hostname
+but can't be fixed for political or economic reasons.  If you wish, I can
+pretend $call() isn't there and maybe compute hostname at run-time
+thanks to the '$phostname' command.
+
+EOM
+       rp="Shall I ignore $call() from now on?"
+       . ./myread
+       case "$ans" in
+       y*) d_uname="$undef" d_gethname="$undef"; $echo $n "Okay...$c";;
+       esac;;
+esac
+case "$phostname" in
+'') aphostname='';;
+*) case "$aphostname" in
+       /*) ;;
+       *) set X $phostname
+               shift
+               file=$1
+               shift
+               file=`./loc $file $file $pth`
+               aphostname=`echo $file $*`
+               ;;
+       esac
+       ;;
+esac
+case "$d_uname$d_gethname" in
+*define*) ;;
+*)
+       case "$phostname" in
+       '')
+               echo "There will be no way for $package to get your hostname." >&4;;
+       *)
+       echo "I'll use 'popen("'"'$aphostname'", "r")'"' to get your hostname." >&4
+               ;;
+       esac;;
+esac
+case "$d_phostname" in
+'') d_phostname="$undef";;
+esac
+
 : see if this is a netdb.h system
 set netdb.h i_netdb
 eval $inhdr
@@ -7832,16 +8233,22 @@ eval $inlibc
 : see if inttypes.h is available
 : we want a real compile instead of Inhdr because some systems
 : have an inttypes.h which includes non-existent headers
+echo " "
 $cat >try.c <<EOCP
 #include <inttypes.h>
-extern int foo;
+main() {
+       static int32_t foo32 = 0x12345678;
+}
 EOCP
 set try
 if eval $compile; then
+       echo "<inttypes.h> found." >&4
        val="$define"
 else
+       echo "<inttypes.h> NOT found." >&4
        val="$undef"
 fi
+$rm -f try.c try
 set i_inttypes
 eval $setvar
 
@@ -8166,18 +8573,6 @@ eval $setvar
 set nice d_nice
 eval $inlibc
 
-: see if pause exists
-set pause d_pause
-eval $inlibc
-
-: see if pipe exists
-set pipe d_pipe
-eval $inlibc
-
-: see if poll exists
-set poll d_poll
-eval $inlibc
-
 : how to create joinable pthreads
 if test "X$usethreads" = "X$define"; then
        echo " "
@@ -8191,49 +8586,61 @@ EOCP
        set try -DJOINABLE=PTHREAD_CREATE_JOINABLE
        if eval $compile; then
                echo "You seem to use PTHREAD_CREATE_JOINABLE." >&2
-               val="$undef"
-               set d_pthread_create_joinable
+               val="$undef" # Yes, undef.
+               set d_old_pthread_create_joinable
                eval $setvar
-               val=0
-               set pthread_create_joinable
+               val=""
+               set old_pthread_create_joinable
                eval $setvar
        else
                set try -DJOINABLE=PTHREAD_CREATE_UNDETACHED
                if eval $compile; then
                        echo "You seem to use PTHREAD_CREATE_UNDETACHED." >&2
                        val="$define"
-                       set d_pthread_create_joinable
+                       set d_old_pthread_create_joinable
                        eval $setvar
                        val=PTHREAD_CREATE_UNDETACHED
-                       set pthread_create_joinable
+                       set old_pthread_create_joinable
                        eval $setvar
                else            
                        set try -DJOINABLE=__UNDETACHED
                        if eval $compile; then
                                echo "You seem to use __UNDETACHED." >&2
                                val="$define"
-                               set d_pthread_create_joinable
+                               set d_old_pthread_create_joinable
                                eval $setvar
                                val=__UNDETACHED
-                               set pthread_create_joinable
+                               set old_pthread_create_joinable
                                eval $setvar
                        else
                                echo "Egads, nothing obvious found.  Guessing that you use 0." >&2
                                val="$define"
-                               set d_pthread_create_joinable
+                               set d_old_pthread_create_joinable
                                eval $setvar
                                val=0
-                               set pthread_create_joinable
+                               set old_pthread_create_joinable
                                eval $setvar
                        fi
                fi
        fi
        $rm -f try try.*
 else
-    d_pthread_create_joinable="$undef"
-    pthread_create_joinable=0
+    d_old_pthread_create_joinable="$undef"
+    old_pthread_create_joinable=""
 fi
 
+: see if pause exists
+set pause d_pause
+eval $inlibc
+
+: see if pipe exists
+set pipe d_pipe
+eval $inlibc
+
+: see if poll exists
+set poll d_poll
+eval $inlibc
+
 
 : see whether the various POSIXish _yields exist
 $cat >try.c <<EOP
@@ -8408,6 +8815,10 @@ eval $inlibc
 set readlink d_readlink
 eval $inlibc
 
+: see if readv exists
+set readv d_readv
+eval $inlibc
+
 : see if rename exists
 set rename d_rename
 eval $inlibc
@@ -9171,59 +9582,6 @@ set d_sigsetjmp
 eval $setvar
 $rm -f try.c try
 
-socketlib=''
-sockethdr=''
-: see whether socket exists
-echo " "
-$echo $n "Hmm... $c" >&4
-if set socket val -f d_socket; eval $csym; $val; then
-       echo "Looks like you have Berkeley networking support." >&4
-       d_socket="$define"
-       if set setsockopt val -f; eval $csym; $val; then
-               d_oldsock="$undef"
-       else
-               echo "...but it uses the old 4.1c interface, rather than 4.2" >&4
-               d_oldsock="$define"
-       fi
-else
-       if $contains socklib libc.list >/dev/null 2>&1; then
-               echo "Looks like you have Berkeley networking support." >&4
-               d_socket="$define"
-               : we will have to assume that it supports the 4.2 BSD interface
-               d_oldsock="$undef"
-       else
-               echo "You don't have Berkeley networking in libc$_a..." >&4
-               if test -f /usr/lib/libnet$_a; then
-                       ( ($nm $nm_opt /usr/lib/libnet$_a | eval $nm_extract) ||  \
-                       $ar t /usr/lib/libnet$_a) 2>/dev/null >> libc.list
-                       if $contains socket libc.list >/dev/null 2>&1; then
-                       echo "...but the Wollongong group seems to have hacked it in." >&4
-                               socketlib="-lnet"
-                               sockethdr="-I/usr/netinclude"
-                               d_socket="$define"
-                               if $contains setsockopt libc.list >/dev/null 2>&1; then
-                                       d_oldsock="$undef"
-                               else
-                                       echo "...using the old 4.1c interface, rather than 4.2" >&4
-                                       d_oldsock="$define"
-                               fi
-                       else
-                               echo "or even in libnet$_a, which is peculiar." >&4
-                               d_socket="$undef"
-                               d_oldsock="$undef"
-                       fi
-               else
-                       echo "or anywhere else I see." >&4
-                       d_socket="$undef"
-                       d_oldsock="$undef"
-               fi
-       fi
-fi
-
-: see if socketpair exists
-set socketpair d_sockpair
-eval $inlibc
-
 : see if stat knows about block sizes
 echo " "
 set d_statblks stat st_blocks $i_sysstat sys/stat.h
@@ -9561,43 +9919,6 @@ eval $setvar
 set umask d_umask
 eval $inlibc
 
-: see how we will look up host name
-echo " "
-if false; then
-       : dummy stub to allow use of elif
-elif set uname val -f d_uname; eval $csym; $val; then
-       if ./xenix; then
-               $cat <<'EOM'
-uname() was found, but you're running xenix, and older versions of xenix
-have a broken uname(). If you don't really know whether your xenix is old
-enough to have a broken system call, use the default answer.
-
-EOM
-               dflt=y
-               case "$d_uname" in
-               "$define") dflt=n;;
-               esac
-               rp='Is your uname() broken?'
-               . ./myread
-               case "$ans" in
-               n*) d_uname="$define"; call=uname;;
-               esac
-       else
-               echo 'uname() found.' >&4
-               d_uname="$define"
-               call=uname
-       fi
-fi
-case "$d_gethname" in
-'') d_gethname="$undef";;
-esac
-case "$d_uname" in
-'') d_uname="$undef";;
-esac
-case "$d_phostname" in
-'') d_phostname="$undef";;
-esac
-
 : backward compatibility for d_hvfork
 if test X$d_hvfork != X; then
        d_vfork="$d_hvfork"
@@ -9752,6 +10073,10 @@ eval $inlibc
 set wctomb d_wctomb
 eval $inlibc
 
+: see if writev exists
+set writev d_writev
+eval $inlibc
+
 : preserve RCS keywords in files with variable substitution, grrr
 Date='$Date'
 Id='$Id'
@@ -10147,6 +10472,7 @@ $rm -f try.* .out
 
 : How can we generate normalized random numbers ?
 echo " "
+echo "Looking for a random number function..." >&4
 case "$randfunc" in
 '')
        if set drand48 val -f; eval $csym; $val; then
@@ -10188,8 +10514,8 @@ while $test "$cont"; do
        if set $ans val -f; eval $csym; $val; then
                cont=''
        else
-               dflt=n
-               rp="Function $ans does not exists. Use that name anyway?"
+               dflt=y
+               rp="I cannot find function $ans. Use that name anyway?"
                . ./myread
                dflt=rand
                case "$ans" in
@@ -10294,7 +10620,7 @@ if eval $compile_ok; then
                echo "Nope, no EBCDIC.  Assuming ASCII or some ISO Latin." >&4
        fi
 else
-       echo "$me: I'm unable to compile the test program." >&4
+       echo "I'm unable to compile the test program." >&4
        echo "I'll assume ASCII or some ISO Latin." >&4
 fi
 $rm -f tebcdic.c tebcdic
@@ -10306,18 +10632,6 @@ rp="What is the type for file position used by fsetpos()?"
 set fpos_t fpostype long stdio.h sys/types.h
 eval $typedef_ask
 
-: get csh whereabouts
-case "$csh" in
-'csh') val="$undef" ;;
-*) val="$define" ;;
-esac
-set d_csh
-eval $setvar
-: Respect a hint or command line value for full_csh.
-case "$full_csh" in
-'') full_csh=$csh ;;
-esac
-
 : Store the full pathname to the sed program for use in the C program
 full_sed=$sed
 
@@ -10707,168 +11021,6 @@ else
 fi
 $rm -f foo* bar* 
 
-: see if sys/select.h has to be included
-set sys/select.h i_sysselct
-eval $inhdr
-
-: see if we should include time.h, sys/time.h, or both
-echo " "
-if test "X$timeincl" = X; then
-       echo "Testing to see if we should include <time.h>, <sys/time.h> or both." >&4
-       $echo $n "I'm now running the test program...$c"
-       $cat >try.c <<'EOCP'
-#include <sys/types.h>
-#ifdef I_TIME
-#include <time.h>
-#endif
-#ifdef I_SYSTIME
-#ifdef SYSTIMEKERNEL
-#define KERNEL
-#endif
-#include <sys/time.h>
-#endif
-#ifdef I_SYSSELECT
-#include <sys/select.h>
-#endif
-main()
-{
-       struct tm foo;
-#ifdef S_TIMEVAL
-       struct timeval bar;
-#endif
-#ifdef S_TIMEZONE
-       struct timezone tzp;
-#endif
-       if (foo.tm_sec == foo.tm_sec)
-               exit(0);
-#ifdef S_TIMEVAL
-       if (bar.tv_sec == bar.tv_sec)
-               exit(0);
-#endif
-       exit(1);
-}
-EOCP
-       flags=''
-       for s_timezone in '-DS_TIMEZONE' ''; do
-       sysselect=''
-       for s_timeval in '-DS_TIMEVAL' ''; do
-       for i_systimek in '' '-DSYSTIMEKERNEL'; do
-       for i_time in '' '-DI_TIME'; do
-       for i_systime in '-DI_SYSTIME' ''; do
-               case "$flags" in
-               '') $echo $n ".$c"
-                       set try $i_time $i_systime $i_systimek $sysselect $s_timeval $s_timezone
-                       if eval $compile; then
-                               set X $i_time $i_systime $i_systimek $sysselect $s_timeval
-                               shift
-                               flags="$*"
-                               echo " "
-                               $echo $n "Succeeded with $flags$c"
-                       fi
-                       ;;
-               esac
-       done
-       done
-       done
-       done
-       done
-       timeincl=''
-       echo " "
-       case "$flags" in
-       *SYSTIMEKERNEL*) i_systimek="$define"
-               timeincl=`./findhdr sys/time.h`
-               echo "We'll include <sys/time.h> with KERNEL defined." >&4;;
-       *) i_systimek="$undef";;
-       esac
-       case "$flags" in
-       *I_TIME*) i_time="$define"
-               timeincl=`./findhdr time.h`" $timeincl"
-               echo "We'll include <time.h>." >&4;;
-       *) i_time="$undef";;
-       esac
-       case "$flags" in
-       *I_SYSTIME*) i_systime="$define"
-               timeincl=`./findhdr sys/time.h`" $timeincl"
-               echo "We'll include <sys/time.h>." >&4;;
-       *) i_systime="$undef";;
-       esac
-       $rm -f try.c try
-fi
-
-: check for fd_set items
-$cat <<EOM
-
-Checking to see how well your C compiler handles fd_set and friends ...
-EOM
-$cat >fd_set.c <<EOCP
-#$i_systime I_SYS_TIME
-#$i_sysselct I_SYS_SELECT
-#$d_socket HAS_SOCKET
-#include <sys/types.h>
-#ifdef HAS_SOCKET
-#include <sys/socket.h> /* Might include <sys/bsdtypes.h> */
-#endif
-#ifdef I_SYS_TIME
-#include <sys/time.h>
-#endif
-#ifdef I_SYS_SELECT
-#include <sys/select.h>
-#endif
-main() {
-       fd_set fds;
-
-#ifdef TRYBITS
-       if(fds.fds_bits);
-#endif
-
-#if defined(FD_SET) && defined(FD_CLR) && defined(FD_ISSET) && defined(FD_ZERO)
-       exit(0);
-#else
-       exit(1);
-#endif
-}
-EOCP
-set fd_set -DTRYBITS
-if eval $compile; then
-       d_fds_bits="$define"
-       d_fd_set="$define"
-       echo "Well, your system knows about the normal fd_set typedef..." >&4
-       if ./fd_set; then
-               echo "and you have the normal fd_set macros (just as I'd expect)." >&4
-               d_fd_macros="$define"
-       else
-               $cat >&4 <<'EOM'
-but not the normal fd_set macros!  Gaaack!  I'll have to cover for you.
-EOM
-               d_fd_macros="$undef"
-       fi
-else
-       $cat <<'EOM'
-Hmm, your compiler has some difficulty with fd_set.  Checking further...
-EOM
-       set fd_set
-       if eval $compile; then
-               d_fds_bits="$undef"
-               d_fd_set="$define"
-               echo "Well, your system has some sort of fd_set available..." >&4
-               if ./fd_set; then
-                       echo "and you have the normal fd_set macros." >&4
-                       d_fd_macros="$define"
-               else
-                       $cat <<'EOM'
-but not the normal fd_set macros!  Gross!  More work for me...
-EOM
-                       d_fd_macros="$undef"
-               fi
-       else
-       echo "Well, you got zip.  That's OK, I can roll my own fd_set stuff." >&4
-               d_fd_set="$undef"
-               d_fds_bits="$undef"
-               d_fd_macros="$undef"
-       fi
-fi
-$rm -f fd_set*
-
 : check for type of arguments to select. 
 case "$selecttype" in
 '') case "$d_select" in
@@ -11502,6 +11654,10 @@ esac
 set i_neterrno
 eval $setvar
 
+: see if this is a poll.h system
+set poll.h i_poll
+eval $inhdr
+
 : get C preprocessor symbols handy
 echo " "
 $echo $n "Hmm... $c"
@@ -12233,6 +12389,7 @@ d_chown='$d_chown'
 d_chroot='$d_chroot'
 d_chsize='$d_chsize'
 d_closedir='$d_closedir'
+d_cmsghdr_s='$d_cmsghdr_s'
 d_const='$d_const'
 d_crypt='$d_crypt'
 d_csh='$d_csh'
@@ -12242,7 +12399,7 @@ d_dbmclose64='$d_dbmclose64'
 d_dbminit64='$d_dbminit64'
 d_delete64='$d_delete64'
 d_difftime='$d_difftime'
-d_dirent64s='$d_dirent64s'
+d_dirent64_s='$d_dirent64_s'
 d_dirnamlen='$d_dirnamlen'
 d_dlerror='$d_dlerror'
 d_dlopen='$d_dlopen'
@@ -12270,7 +12427,7 @@ d_fgetpos64='$d_fgetpos64'
 d_fgetpos='$d_fgetpos'
 d_firstkey64='$d_firstkey64'
 d_flexfnam='$d_flexfnam'
-d_flock64s='$d_flock64s'
+d_flock64_s='$d_flock64_s'
 d_flock='$d_flock'
 d_fopen64='$d_fopen64'
 d_fork='$d_fork'
@@ -12321,6 +12478,7 @@ d_index='$d_index'
 d_inetaton='$d_inetaton'
 d_ino64t='$d_ino64t'
 d_int64t='$d_int64t'
+d_iovec_s='$d_iovec_s'
 d_isascii='$d_isascii'
 d_killpg='$d_killpg'
 d_lchown='$d_lchown'
@@ -12344,14 +12502,21 @@ d_mkdir='$d_mkdir'
 d_mkfifo='$d_mkfifo'
 d_mktime='$d_mktime'
 d_msg='$d_msg'
+d_msg_ctrunc='$d_msg_ctrunc'
+d_msg_dontroute='$d_msg_dontroute'
+d_msg_oob='$d_msg_oob'
+d_msg_peek='$d_msg_peek'
+d_msg_proxy='$d_msg_proxy'
 d_msgctl='$d_msgctl'
 d_msgget='$d_msgget'
+d_msghdr_s='$d_msghdr_s'
 d_msgrcv='$d_msgrcv'
 d_msgsnd='$d_msgsnd'
 d_mymalloc='$d_mymalloc'
 d_nextkey64='$d_nextkey64'
 d_nice='$d_nice'
 d_off64t='$d_off64t'
+d_old_pthread_create_joinable='$d_old_pthread_create_joinable'
 d_oldpthreads='$d_oldpthreads'
 d_oldsock='$d_oldsock'
 d_open3='$d_open3'
@@ -12363,7 +12528,6 @@ d_phostname='$d_phostname'
 d_pipe='$d_pipe'
 d_poll='$d_poll'
 d_portable='$d_portable'
-d_pthread_create_joinable='$d_pthread_create_joinable'
 d_pthread_yield='$d_pthread_yield'
 d_pwage='$d_pwage'
 d_pwchange='$d_pwchange'
@@ -12376,6 +12540,8 @@ d_pwquota='$d_pwquota'
 d_readdir64='$d_readdir64'
 d_readdir='$d_readdir'
 d_readlink='$d_readlink'
+d_readv='$d_readv'
+d_recvmsg='$d_recvmsg'
 d_rename='$d_rename'
 d_rewinddir='$d_rewinddir'
 d_rmdir='$d_rmdir'
@@ -12383,6 +12549,7 @@ d_safebcpy='$d_safebcpy'
 d_safemcpy='$d_safemcpy'
 d_sanemcmp='$d_sanemcmp'
 d_sched_yield='$d_sched_yield'
+d_scm_rights='$d_scm_rights'
 d_seekdir64='$d_seekdir64'
 d_seekdir='$d_seekdir'
 d_select='$d_select'
@@ -12392,6 +12559,7 @@ d_semctl_semid_ds='$d_semctl_semid_ds'
 d_semctl_semun='$d_semctl_semun'
 d_semget='$d_semget'
 d_semop='$d_semop'
+d_sendmsg='$d_sendmsg'
 d_setegid='$d_setegid'
 d_seteuid='$d_seteuid'
 d_setgrent='$d_setgrent'
@@ -12472,6 +12640,7 @@ d_wait4='$d_wait4'
 d_waitpid='$d_waitpid'
 d_wcstombs='$d_wcstombs'
 d_wctomb='$d_wctomb'
+d_writev='$d_writev'
 d_xenix='$d_xenix'
 date='$date'
 db_hashtype='$db_hashtype'
@@ -12533,6 +12702,7 @@ i_ndbm='$i_ndbm'
 i_netdb='$i_netdb'
 i_neterrno='$i_neterrno'
 i_niin='$i_niin'
+i_poll='$i_poll'
 i_pwd='$i_pwd'
 i_rpcsvcdbm='$i_rpcsvcdbm'
 i_sfio='$i_sfio'
@@ -12558,6 +12728,7 @@ i_systime='$i_systime'
 i_systimek='$i_systimek'
 i_systimes='$i_systimes'
 i_systypes='$i_systypes'
+i_sysuio='$i_sysuio'
 i_sysun='$i_sysun'
 i_syswait='$i_syswait'
 i_termio='$i_termio'
@@ -12646,6 +12817,7 @@ nonxs_ext='$nonxs_ext'
 nroff='$nroff'
 o_nonblock='$o_nonblock'
 obj_ext='$obj_ext'
+old_pthread_create_joinable='$old_pthread_create_joinable'
 optimize='$optimize'
 orderlib='$orderlib'
 osname='$osname'
@@ -12669,7 +12841,6 @@ prefixexp='$prefixexp'
 privlib='$privlib'
 privlibexp='$privlibexp'
 prototype='$prototype'
-pthread_create_joinable='$pthread_create_joinable'
 ptrsize='$ptrsize'
 randbits='$randbits'
 randfunc='$randfunc'