perl 3.0 patch #2 (combined patch)

The metaconfig problem with pw_* fields has been fixed.

When you specify extra libraries to link in, Configure now
uses those libraries as well as libc to look for the functions
that are available.  From the ccflags you give it now derives
the corresponding flags for the C preprocessor.  And it has
better support for the Gnu C preprocessor.

Configure now detects USGness by the behavior of the tr program.
If USGness isn't found, then SIGTSTP determines BSDness.

The define of DEBUGGING has been taken out of perl.h and a2p.h.
If you want debugging you have to add -DDEBUGGING in a cc flag.
If you give an optimizer flag of -g, you get DEBUGGING as a
default.

Machines like the Cray have longs longer than 4 bytes.  There
is now support for that.

Some machines have csh in other places than /bin.  Configure
now figures out where it is.

Configure now supports Wollongong sockets and knows about
/usr/netinclude and /usr/lib/libnet.a.

Configure now gets sig names directly from signal.h if possible,
and only if that fails does it try to use kill -l.

The $sockethdr variable has been incorporated into $ccflags

Non-BSD machines required two ^D's to exit

while (<>) { ... }

This has been fixed, I believe, though I can't test it here.

It's now possible to compile perl without the DEBUGGING code.
It runs about 10% faster when you take the code out.

Configure now discovers if <sys/time.h> includes <time.h>, or
whether perl must include it itself.

Configure now finds the wait4() routine if available.

'-' x 26 made warnings about undefined value because of a bug
in evalstatic().  (Non-static 'x' didn't have the problem.)

A local list consisting of nothing but an array didn't work
right.  Now it does.

A printf %c omitted the format string between the preceeding % field
and the %c.  Code to printf %D, %X and %O was misplaced.

Some machines complain about printing signed values with
unsigned format specifiers like %x.  The unsigned specifiers
now have a separate cast from the signed specifiers like %d.

The various file modes were not orthogonal.  Now you can use
any of:
< > >> +< +> +>> <& >& >>& +<& +>& +>>&

Perl can now detect when a parent process passes in a socket so
that you can write reasonable inetd servers.

File descriptors above 2 are now closed on exec, either by using
the fcntl(), or if unavailable, brute force closing in a loop.

The return values of getsockopt(), getsockname() and getpeername()
were always undefined.

There were several places where a warn("shutdown") had to be
changed to some other function name.

The C routine gethostbyname() was misdeclared as gethostbynam().

telldir() is sometimes a macro, so we can't declare its return
value if it's defined.

Components of a slice corresponding to non-existent index elements
are now undefined rather than just null.

The mkdir and rmdir function will call the mkdir and rmdir
programs if the corresponding system calls aren't available.
The name of the directory was not quoted properly however.
Also, some attempt is now made to translate the odd messages
that some mkdirs and rmdir return into reasonable error codes.
As a final check for mkdir programs that return NO useful status,
a stat is done following the mkdir or rmdir to make sure the
directory is really there or gone.

The fileno, seekdir, rewinddir and closedir functions now specifically
disallow defaults and return undef.  Previously they would just crash
perl.

CX/UX needs to set the key each time when iterating over associative
arrays due to a non-standard dbm_nextkey() function.

The lib/getopts.pl routine needed to shift @ARGV explicitly in
several spots.

The malloc pointer corruption check was made more portable by just
checking for alignment errors.  It also is removed if DEBUGGING
is not enabled.

The include of <netinet/in.h> needed to be moved down below the
include of <sys/types.h> for some machines.

Not all machines declare the yydebug variable as the same type.
The reference to yydebug was moved to perl.y where it doesn't care.

I documented that a space must separate any word and a subsequent
single-quoted string because of package name prefixes.

Some long lines were broken for nroff, but not for troff.

One example of unshift in the manual had its arguments backwards.

I clarified that operation of ^ and $ on multiline strings when $*
is false is somewhat inconsistent.

People were forced to say !($foo++) when !$foo++ should be legal.

None of the unary operators correctly handled their default
arguments because of a screw-up in the parser actions.

/[\000]/ never matched a null due to some left over non-binary-ness
of perl 2.0.

/\b$foo/ gave up too early in trying to match at the end of a string.

sys_nerr was being used as the maximum error message number, when
in fact it's the maximum+1.

The identifier "uchar" is a typedef on Crays, so the variable of that
name was changed to "unchar".

The TEST program tried to run patch reject files.  The reject files
are now rejected by TEST.

One test failed on picky systems because it referred to a filename
longer than 14 chars.

The op.split test assumed that the perl -D switch was available,
when in fact it's only available if perl was compiled with DEBUGGING.

Some header file somewhere defined macro CLINE, which conflicted
with toke.c's CLINE macro.

In s2p, + within patterns needed backslashing because + isn't a
metacharacter for sed.  s2p was also printing out some debugging
info to the output file.

In a2p, an awk script with no line actions didn't make a main
loop, but it needs one to keep the awk semantics.

1 files changed, 423 insertions, 296 deletions

diff --git a/Configure b/Configure
index a3aeb9bb46..f5a7fc6a70 100755
--- a/Configure
+++ b/Configure
@@ -8,7 +8,7 @@
 # and edit it to reflect your system.  Some packages may include samples
 # of config.h for certain machines, so you might look for one of those.)
 #
-# $Header: Configure,v 3.0.1.1 89/10/26 22:58:02 lwall Locked $
+# $Header: Configure,v 3.0.1.2 89/11/11 04:05:37 lwall Locked $
 #
 # Yes, you may rip this off to use in other distribution packages.
 # (Note: this Configure script was generated automatically.  Rather than
@@ -39,8 +39,8 @@ case "$1" in
 esac
 
 d_eunice=''
-eunicefix=''
 define=''
+eunicefix=''
 loclist=''
 expr=''
 sed=''
@@ -91,6 +91,7 @@ lp=''
 touch=''
 make=''
 date=''
+csh=''
 Log=''
 Header=''
 bin=''
@@ -103,6 +104,7 @@ d_bcopy=''
 d_charsprf=''
 d_crypt=''
 cryptlib=''
+d_csh=''
 d_dosuid=''
 d_dup2=''
 d_fchmod=''
@@ -139,7 +141,6 @@ d_socket=''
 d_sockpair=''
 d_oldsock=''
 socketlib=''
-sockethdr=''
 d_statblks=''
 d_stdstdio=''
 d_strctcpy=''
@@ -147,11 +148,13 @@ d_symlink=''
 d_syscall=''
 d_tminsys=''
 i_systime=''
+i_timetoo=''
 d_varargs=''
 d_vfork=''
 d_voidsig=''
 d_vprintf=''
 d_charvspr=''
+d_wait4=''
 gidtype=''
 i_dirent=''
 d_dirnamlen=''
@@ -161,14 +164,15 @@ i_niin=''
 i_pwd=''
 d_pwquota=''
 d_pwage=''
+d_pwchange=''
+d_pwclass=''
+d_pwexpire=''
 i_sysdir=''
 i_sysioctl=''
 i_varargs=''
 i_vfork=''
 intsize=''
 libc=''
-libdbm=''
-libndir=''
 libnm=''
 mallocsrc=''
 mallocobj=''
@@ -183,6 +187,7 @@ large=''
 huge=''
 optimize=''
 ccflags=''
+cppflags=''
 ldflags=''
 cc=''
 libs=''
@@ -230,7 +235,7 @@ fi
 
 echo "First let's make sure your kit is complete.  Checking..."
 (cd ..; awk '' `awk '$1 !~ /PACKINGLIST/ {print $1}' MANIFEST` >/dev/null || kill $$)
-echo " "
+echo "Looks good..."
 
 attrlist="mc68000 sun gcos unix ibm gimpel interdata tss os mert pyr"
 attrlist="$attrlist vax pdp11 i8086 z8000 u3b2 u3b5 u3b20 u3b200"
@@ -242,6 +247,7 @@ attrlist="$attrlist i186"
 pth="/usr/ucb /bin /usr/bin /usr/local /usr/local/bin /usr/lbin /usr/plx /usr/5bin /vol/local/bin /etc /usr/lib /lib /usr/local/lib /sys5.3/bin /sys5.3/usr/bin /bsd4.3/bin /bsd4.3/usr/bin /bsd4.3/usr/ucb"
 d_newshome="/usr/NeWS"
 defvoidused=7
+libswanted="net nm ndir ndbm dbm c_s"
 
 : some greps do not return status, grrr.
 echo "grimblepritz" >grimble
@@ -264,6 +270,66 @@ EOSS
 chmod +x contains
 esac
 
+: see if sh knows # comments
+echo " "
+echo "Checking your sh to see if it knows about # comments..."
+if sh -c '#' >/dev/null 2>&1 ; then
+    echo "Your sh handles # comments correctly."
+    shsharp=true
+    spitshell=cat
+    echo " "
+    echo "Okay, let's see if #! works on this system..."
+    echo "#!/bin/echo hi" > try
+    $eunicefix try
+    chmod +x try
+    try > today
+    if $contains hi today >/dev/null 2>&1; then
+	echo "It does."
+	sharpbang='#!'
+    else
+	echo "#! /bin/echo hi" > try
+	$eunicefix try
+	chmod +x try
+	try > today
+	if test -s today; then
+	    echo "It does."
+	    sharpbang='#! '
+	else
+	    echo "It doesn't."
+	    sharpbang=': use '
+	fi
+    fi
+else
+    echo "Your sh doesn't grok # comments--I will strip them later on."
+    shsharp=false
+    echo "exec grep -v '^#'" >spitshell
+    chmod +x spitshell
+    $eunicefix spitshell
+    spitshell=`pwd`/spitshell
+    echo "I presume that if # doesn't work, #! won't work either!"
+    sharpbang=': use '
+fi
+
+: figure out how to guarantee sh startup
+echo " "
+echo "Checking out how to guarantee sh startup..."
+startsh=$sharpbang'/bin/sh'
+echo "Let's see if '$startsh' works..."
+cat >try <<EOSS
+$startsh
+set abc
+test "$?abc" != 1
+EOSS
+
+chmod +x try
+$eunicefix try
+if try; then
+    echo "Yup, it does."
+else
+    echo "Nope.  You may have to fix up the shell scripts to make sure sh runs them."
+fi
+rm -f try today
+
 : first determine how to suppress newline on echo command
 echo "Checking echo to see how to suppress newlines..."
 (echo "hi there\c" ; echo " ") >.echotmp
@@ -423,6 +489,7 @@ uniq
 trylist="
 Mcc
 cpp
+csh
 egrep
 test
 "
@@ -512,221 +579,6 @@ FOO
 esac
 rmlist="$rmlist loc"
 
-: get list of predefined functions in a handy place
-echo " "
-set /usr/lib/libc.so.[0-9]*
-eval set \$$#
-if test -f "$1"; then
-    echo "Your shared C library is in $1."
-    libc="$1"
-elif test -f /lib/libc.a; then
-    echo "Your C library is in /lib/libc.a.  You're normal."
-    libc=/lib/libc.a
-else
-    ans=`loc libc.a blurfl/dyick $libpth`
-    if test ! -f "$ans"; then
-	ans=`loc clib blurfl/dyick $libpth`
-    fi
-    if test ! -f "$ans"; then
-	ans=`loc libc blurfl/dyick $libpth`
-    fi
-    if test ! -f "$ans"; then
-	ans=`loc Slibc.a blurfl/dyick /usr/lib/386 /lib/386 $libpth`
-    fi
-    if test ! -f "$ans"; then
-	ans=`loc Mlibc.a blurfl/dyick $libpth`
-    fi
-    if test ! -f "$ans"; then
-	ans=`loc Llibc.a blurfl/dyick $libpth`
-    fi
-    if test -f "$ans"; then
-	echo "Your C library is in $ans, of all places."
-	libc=$ans
-    else
-	if test -f "$libc"; then
-	    echo "Your C library is in $libc, like you said before."
-	else
-	    cat <<EOM
- 
-I can't seem to find your C library.  I've looked in the following places:
-
-	$libpth
-
-None of these seems to contain your C library.  What is the full name
-EOM
-	    dflt=None
-	    $echo $n "of your C library? $c"
-	    rp='C library full name?'
-	    . myread
-	    libc="$ans"
-	fi
-    fi
-fi
-echo " "
-$echo $n "Extracting names from $libc for later perusal...$c"
-nm $libc 2>/dev/null >libc.tmp
-$sed -n -e 's/^.* [AT]  *_[_.]*//p' -e 's/^.* [AT] //p' <libc.tmp >libc.list
-if $contains '^printf$' libc.list >/dev/null 2>&1; then
-    echo "done"
-else
-    $sed -n -e 's/^__*//' -e 's/^\([a-zA-Z_0-9$]*\).*xtern.*/\1/p' <libc.tmp >libc.list
-    $contains '^printf$' libc.list >/dev/null 2>&1 || \
-	$sed -n -e 's/^.* D __*//p' -e 's/^.* D //p' <libc.tmp >libc.list
-    $contains '^printf$' libc.list >/dev/null 2>&1 || \
-       $sed -n -e 's/^_//' \
-	      -e 's/^\([a-zA-Z_0-9]*\).*xtern.*text.*/\1/p' <libc.tmp >libc.list
-    if $contains '^printf$' libc.list >/dev/null 2>&1; then
-	echo "done"
-    else
-	echo " "
-	echo "nm didn't seem to work right."
-	echo "Trying ar instead..."
-	if ar t $libc > libc.tmp; then
-	    $sed -e 's/\.o$//' < libc.tmp > libc.list
-	    echo "Ok."
-	else
-	    echo "ar didn't seem to work right."
-	    echo "Maybe this is a Cray...trying bld instead..."
-	    if bld t $libc | $sed -e 's/.*\///' -e 's/\.o:.*$//' > libc.list; then
-		echo "Ok."
-	    else
-	    	echo "That didn't work either.  Giving up."
-	    	exit 1
-	    fi
-	fi
-    fi
-fi
-
-inlibc='echo " ";
-if $contains "^$1\$" libc.list >/dev/null 2>&1;
-then echo "$1() found"; eval "$2=$define";
-else echo "$1() not found"; eval "$2=$undef"; fi'
-
-rmlist="$rmlist libc.tmp libc.list"
-
-: make some quick guesses about what we are up against
-echo " "
-$echo $n "Hmm...  $c"
-cat /usr/include/signal.h /usr/include/sys/signal.h >foo
-if $contains SIGTSTP foo >/dev/null 2>&1 ; then
-    echo "Looks kind of like a BSD system, but we'll see..."
-    echo exit 0 >bsd
-    echo exit 1 >usg
-    echo exit 1 >v7
-elif $contains '^fcntl$' libc.list >/dev/null 2>&1 ; then
-    echo "Looks kind of like a USG system, but we'll see..."
-    echo exit 1 >bsd
-    echo exit 0 >usg
-    echo exit 1 >v7
-else
-    echo "Looks kind of like a version 7 system, but we'll see..."
-    echo exit 1 >bsd
-    echo exit 1 >usg
-    echo exit 0 >v7
-fi
-if $contains '^vmssystem$' libc.list >/dev/null 2>&1 ; then
-    cat <<'EOI'
-There is, however, a strange, musty smell in the air that reminds me of
-something...hmm...yes...I've got it...there's a VMS nearby, or I'm a Blit.
-EOI
-    echo "exit 0" >eunice
-    eunicefix=unixtovms
-    d_eunice="$define"
-: it so happens the Eunice I know will not run shell scripts in Unix format
-else
-    echo " "
-    echo "Congratulations.  You aren't running Eunice."
-    eunicefix=':'
-    d_eunice="$undef"
-    echo "exit 1" >eunice
-fi
-if test -f /xenix; then
-    echo "Actually, this looks more like a XENIX system..."
-    echo "exit 0" >xenix
-else
-    echo " "
-    echo "It's not Xenix..."
-    echo "exit 1" >xenix
-fi
-chmod +x xenix
-$eunicefix xenix
-if test -f /venix; then
-    echo "Actually, this looks more like a VENIX system..."
-    echo "exit 0" >venix
-else
-    echo " "
-    if xenix; then
-	: null
-    else
-	echo "Nor is it Venix..."
-    fi
-    echo "exit 1" >venix
-fi
-chmod +x bsd usg v7 eunice venix
-$eunicefix bsd usg v7 eunice venix
-rm -rf foo
-rmlist="$rmlist bsd usg v7 eunice venix xenix"
-
-: see if sh knows # comments
-echo " "
-echo "Checking your sh to see if it knows about # comments..."
-if sh -c '#' >/dev/null 2>&1 ; then
-    echo "Your sh handles # comments correctly."
-    shsharp=true
-    spitshell=cat
-    echo " "
-    echo "Okay, let's see if #! works on this system..."
-    echo "#!/bin/echo hi" > try
-    $eunicefix try
-    chmod +x try
-    try > today
-    if $contains hi today >/dev/null 2>&1; then
-	echo "It does."
-	sharpbang='#!'
-    else
-	echo "#! /bin/echo hi" > try
-	$eunicefix try
-	chmod +x try
-	try > today
-	if test -s today; then
-	    echo "It does."
-	    sharpbang='#! '
-	else
-	    echo "It doesn't."
-	    sharpbang=': use '
-	fi
-    fi
-else
-    echo "Your sh doesn't grok # comments--I will strip them later on."
-    shsharp=false
-    echo "exec grep -v '^#'" >spitshell
-    chmod +x spitshell
-    $eunicefix spitshell
-    spitshell=`pwd`/spitshell
-    echo "I presume that if # doesn't work, #! won't work either!"
-    sharpbang=': use '
-fi
-
-: figure out how to guarantee sh startup
-echo " "
-echo "Checking out how to guarantee sh startup..."
-startsh=$sharpbang'/bin/sh'
-echo "Let's see if '$startsh' works..."
-cat >try <<EOSS
-$startsh
-set abc
-test "$?abc" != 1
-EOSS
-
-chmod +x try
-$eunicefix try
-if try; then
-    echo "Yup, it does."
-else
-    echo "Nope.  You may have to fix up the shell scripts to make sure sh runs them."
-fi
-rm -f try today
-
 : set up shell script to do ~ expansion
 cat >filexp <<EOSS
 $startsh
@@ -858,6 +710,69 @@ case "$mansrc" in
     ;;
 esac
 
+: make some quick guesses about what we are up against
+echo " "
+$echo $n "Hmm...  $c"
+cat /usr/include/signal.h /usr/include/sys/signal.h >foo
+if test `echo abc | tr a-z A-Z` = Abc ; then
+    echo "Looks kind of like a USG system, but we'll see..."
+    echo exit 1 >bsd
+    echo exit 0 >usg
+    echo exit 1 >v7
+elif $contains SIGTSTP foo >/dev/null 2>&1 ; then
+    echo "Looks kind of like a BSD system, but we'll see..."
+    echo exit 0 >bsd
+    echo exit 1 >usg
+    echo exit 1 >v7
+else
+    echo "Looks kind of like a version 7 system, but we'll see..."
+    echo exit 1 >bsd
+    echo exit 1 >usg
+    echo exit 0 >v7
+fi
+case "$eunicefix" in
+*unixtovms*)
+    cat <<'EOI'
+There is, however, a strange, musty smell in the air that reminds me of
+something...hmm...yes...I've got it...there's a VMS nearby, or I'm a Blit.
+EOI
+    echo "exit 0" >eunice
+    d_eunice="$define"
+    ;;
+*)
+    echo " "
+    echo "Congratulations.  You aren't running Eunice."
+    d_eunice="$undef"
+    echo "exit 1" >eunice
+    ;;
+esac
+if test -f /xenix; then
+    echo "Actually, this looks more like a XENIX system..."
+    echo "exit 0" >xenix
+else
+    echo " "
+    echo "It's not Xenix..."
+    echo "exit 1" >xenix
+fi
+chmod +x xenix
+$eunicefix xenix
+if test -f /venix; then
+    echo "Actually, this looks more like a VENIX system..."
+    echo "exit 0" >venix
+else
+    echo " "
+    if xenix; then
+	: null
+    else
+	echo "Nor is it Venix..."
+    fi
+    echo "exit 1" >venix
+fi
+chmod +x bsd usg v7 eunice venix
+$eunicefix bsd usg v7 eunice venix
+rm -rf foo
+rmlist="$rmlist bsd usg v7 eunice venix xenix"
+
 : see what memory models we can support
 case "$models" in
 '')
@@ -1078,6 +993,7 @@ case "$optimize" in
     ;;
 esac
 cat <<EOH
+
 Some C compilers have problems with their optimizers, by default, $package
 compiles with the -O flag to use the optimizer.  Alternately, you might
 want to use the symbolic debugger, which uses the -g flag (on traditional
@@ -1096,13 +1012,34 @@ esac
 
 case "$ccflags" in
 '') case "$cc" in
-    gcc) dflt='-fpcc-struct-return';;
+    *gcc*) dflt='-fpcc-struct-return';;
     *) dflt='none';;
     esac
     ;;
 *) dflt="$ccflags";;
 esac
-echo " "
+if test -d /usr/netinclude; then
+    case "$dflt" in
+    *netinclude*);;
+    *) dflt="$dflt -I/usr/netinclude";;
+    esac
+fi
+case "$optimize" in
+-g*)
+    case "$dflt" in
+    *DEBUGGING*);;
+    *) dflt="$dflt -DDEBUGGING";;
+    esac
+    ;;
+esac
+cat <<EOH
+
+Your C compiler may want other flags.  For this question you should
+include -I/whatever and -DWHATEVER flags and any other flags used by
+the C compiler, but you should NOT include libraries or ld flags like
+-lwhatever.  To use no flags, specify the word "none".
+  
+EOH
 rp="Any additional cc flags? [$dflt]"
 $echo $n "$rp $c"
 . myread
@@ -1111,6 +1048,26 @@ none) ans='';
 esac
 ccflags="$ans"
 
+: the following weeds options from ccflags that are of no interest to cpp
+cppflags="$ccflags"
+case "$cc" in
+*gcc*) cppflags="$cppflags -D__GNUC__";;
+esac
+case "$cppflags" in
+'');;
+*)  set X $cppflags
+    cppflags=''
+    for flag do
+	case $flag in
+	-D*|-I*) cppflags="$cppflags $flag";;
+	esac
+    done
+    case "$cppflags" in
+    *-*)  echo "(C preprocessor flags: $cppflags)";;
+    esac
+    ;;
+esac
+
 case "$ldflags" in
 '') if venix; then
 	dflt='-i -z'
@@ -1130,10 +1087,38 @@ esac
 ldflags="$ans"
 rmlist="$rmlist pdp11"
 
+echo " "
+echo "Checking for optional libraries..."
 case "$libs" in
-'') dflt='none';;
+'') dflt='';;
 *) dflt="$libs";;
 esac
+case "$libswanted" in
+'') libswanted='c_s';;
+esac
+for thislib in $libswanted; do
+    if xxx=`loc lib$thislib.a X /usr/lib /usr/local/lib /lib`; then
+	echo "Found -l$thislib."
+	case "$dflt" in
+	*-l$thislib*);;
+	*) dflt="$dflt -l$thislib";;
+	esac
+    elif xxx=`loc lib$thislib.a X $libpth`; then
+	echo "Found $xxx."
+	case "$dflt" in
+	*$xxx*);;
+	*) dflt="$dflt $xxx";;
+	esac
+    else
+	echo "No -l$thislib."
+    fi
+done
+set X $dflt
+shift
+dflt="$*"
+case "$dflt" in
+'') dflt='none';;
+esac
 
 $cat <<EOM
  
@@ -1165,8 +1150,9 @@ cat <<'EOM'
 In the following, larger digits indicate more significance.  A big-endian
 machine like a Pyramid or a Motorola 680?0 chip will come out to 4321.  A
 little-endian machine like a Vax or an Intel 80?86 chip would be 1234.  Other
-machines may have weird orders like 3412.  If the test program works the
-default is probably right.  I'm now running the test program...
+machines may have weird orders like 3412.  A Cray will report 87654321.  If
+the test program works the default is probably right.
+I'm now running the test program...
 EOM
     $cat >try.c <<'EOCP'
 #include <stdio.h>
@@ -1175,17 +1161,19 @@ main()
     int i;
     union {
 	unsigned long l;
-	char c[4];
+	char c[8];
     } u;
 
-    u.l = 0x04030201;
-    printf("%c%c%c%c\n", u.c[0]+'0', u.c[1]+'0', u.c[2]+'0', u.c[3]+'0');
+    u.l = 0x0807060504030201;
+    for (i=0; i < sizeof(long); i++)
+	printf("%c",u.c[i]+'0');
+    printf("\n");
 }
 EOCP
     if $cc try.c -o try >/dev/null 2>&1 ; then
 	dflt=`try`
 	case "$dflt" in
-	????) echo "(The test program ran ok.)";;
+	????|????????) echo "(The test program ran ok.)";;
 	*) echo "(The test program didn't run right for some reason.)";;
 	esac
     else
@@ -1214,6 +1202,23 @@ ABC.XYZ
 EOT
 echo 'Maybe "'"$cc"' -E" will work...'
 $cc -E <testcpp.c >testcpp.out 2>&1
+: try to force gcc preprocessor if that is the compiler they are using
+case $? in
+0) cppstdin="$cc -E";;
+*) case "$cc" in
+    *gcc*)
+	cd ..
+	echo 'Trying (cat >/tmp/$$.c; '"$cc"' -E /tmp/$$.c; rm /tmp/$$.c)'
+	echo 'cat >/tmp/$$.c; '"$cc"' -E /tmp/$$.c; rm /tmp/$$.c' >cppstdin
+	chmod 755 cppstdin
+	cppstdin=`pwd`/cppstdin
+	cppminus='';
+	cd UU
+	$cppstdin <testcpp.c >testcpp.out 2>&1
+	;;
+    esac
+    ;;
+esac
 if $contains 'abc.*xyz' testcpp.out >/dev/null 2>&1 ; then
     echo "Yup, it does."
     cppstdin="$cc -E"
@@ -1296,6 +1301,137 @@ else
 fi
 rm -f testcpp.c testcpp.out
 
+: get list of predefined functions in a handy place
+echo " "
+case "$libc" in
+'') libc=unknown;;
+esac
+case "$libpth" in
+'') libpth='/lib /usr/lib /usr/local/lib';;
+esac
+case "$libs" in
+*-lc_s*) libc=`loc libc_s.a $libc $libpth`
+esac
+libnames='';
+case "$libs" in
+'') ;;
+*)  for thislib in $libs; do
+	case "$thislib" in
+	-l*) thislib=`expr X$thislib : 'X-l\(.*\)'`
+	    try=`loc lib$thislib.a blurfl/dyick $libpth`
+	    if test ! -f $try; then
+		try=`loc lib$thislib blurfl/dyick $libpth`
+		if test ! -f $try; then
+		    try=`loc $thislib blurfl/dyick $libpth`
+		    if test ! -f $try; then
+			try=''
+		    fi
+		fi
+	    fi
+	    libnames="$libnames $try"
+	    ;;
+	*) libnames="$libnames $thisname" ;;
+	esac
+    done
+    ;;
+esac
+set /usr/lib/libc.so.[0-9]*
+eval set \$$#
+if test -f "$1"; then
+    echo "Your shared C library is in $1."
+    libc="$1"
+elif test -f $libc; then
+    echo "Your C library is in $libc, like you said before."
+elif test -f /lib/libc.a; then
+    echo "Your C library is in /lib/libc.a.  You're normal."
+    libc=/lib/libc.a
+else
+    ans=`loc libc.a blurfl/dyick $libpth`
+    if test ! -f "$ans"; then
+	ans=`loc libc blurfl/dyick $libpth`
+    fi
+    if test ! -f "$ans"; then
+	ans=`loc clib blurfl/dyick $libpth`
+    fi
+    if test ! -f "$ans"; then
+	ans=`loc Slibc.a blurfl/dyick /usr/lib/386 /lib/386 $libpth`
+    fi
+    if test ! -f "$ans"; then
+	ans=`loc Mlibc.a blurfl/dyick $libpth`
+    fi
+    if test ! -f "$ans"; then
+	ans=`loc Llibc.a blurfl/dyick $libpth`
+    fi
+    if test -f "$ans"; then
+	echo "Your C library is in $ans, of all places."
+	libc=$ans
+    else
+	cat <<EOM
+ 
+I can't seem to find your C library.  I've looked in the following places:
+
+	$libpth
+
+None of these seems to contain your C library.  What is the full name
+EOM
+	dflt=None
+	$echo $n "of your C library? $c"
+	rp='C library full name?'
+	. myread
+	libc="$ans"
+    fi
+fi
+echo " "
+set $libc $libnames
+$echo $n "Extracting names from $* for later perusal...$c"
+nm $* 2>/dev/null >libc.tmp
+$sed -n -e 's/^.* [AT]  *_[_.]*//p' -e 's/^.* [AT] //p' <libc.tmp >libc.list
+if $contains '^printf$' libc.list >/dev/null 2>&1; then
+    echo "done"
+else
+    $sed -n -e 's/^__*//' -e 's/^\([a-zA-Z_0-9$]*\).*xtern.*/\1/p' <libc.tmp >libc.list
+    $contains '^printf$' libc.list >/dev/null 2>&1 || \
+	$sed -n -e 's/^.* D __*//p' -e 's/^.* D //p' <libc.tmp >libc.list
+    $contains '^printf$' libc.list >/dev/null 2>&1 || \
+       $sed -n -e 's/^_//' \
+	      -e 's/^\([a-zA-Z_0-9]*\).*xtern.*text.*/\1/p' <libc.tmp >libc.list
+    if $contains '^printf$' libc.list >/dev/null 2>&1; then
+	echo "done"
+    else
+	echo " "
+	echo "nm didn't seem to work right."
+	echo "Trying ar instead..."
+	if ar t $libc > libc.tmp; then
+	    for thisname in $libnames; do
+		ar t $thisname >>libc.tmp
+	    done
+	    $sed -e 's/\.o$//' < libc.tmp > libc.list
+	    echo "Ok."
+	else
+	    echo "ar didn't seem to work right."
+	    echo "Maybe this is a Cray...trying bld instead..."
+	    if bld t $libc | $sed -e 's/.*\///' -e 's/\.o:.*$//' > libc.list; then
+		for thisname in $libnames; do
+		    bld t $libnames | \
+			$sed -e 's/.*\///' -e 's/\.o:.*$//' >>libc.list
+		    ar t $thisname >>libc.tmp
+		done
+		echo "Ok."
+	    else
+	    	echo "That didn't work either.  Giving up."
+	    	exit 1
+	    fi
+	fi
+    fi
+fi
+
+inlibc='echo " ";
+if $contains "^$1\$" libc.list >/dev/null 2>&1;
+then echo "$1() found"; eval "$2=$define";
+else echo "$1() not found"; eval "$2=$undef"; fi'
+
+rmlist="$rmlist libc.tmp libc.list"
+
 : see if bcmp exists
 set bcmp d_bcmp
 eval $inlibc
@@ -1383,6 +1519,12 @@ else
     fi
 fi
 
+: get csh whereabouts
+case "$csh" in
+'csh') d_csh="$undef" ;;
+*)     d_csh="$define" ;;
+esac
+
 : see if this is a dirent system
 echo " "
 if $test -r /usr/include/dirent.h ; then
@@ -1529,7 +1671,7 @@ eval $inlibc
 
 : see if ndbm is available
 echo " "
-if $test -r /usr/include/ndbm.h || $test -r /usr/local/include/ndbm.h; then
+if xxx=`loc ndbm.h x /usr/include /usr/local/include /usr/netinclude`; then
     d_ndbm="$define"
     echo "ndbm.h found."
 else
@@ -1539,7 +1681,7 @@ fi
 
 : see if we have the old dbm
 echo " "
-if $test -r /usr/include/dbm.h ; then
+if xxx=`loc dbm.h x /usr/include /usr/local/include /usr/netinclude`; then
     d_odbm="$define"
     echo "dbm.h found."
 else
@@ -1552,31 +1694,33 @@ echo " "
 if $test -r /usr/include/pwd.h ; then
     i_pwd="$define"
     echo "pwd.h found."
-    if $contains 'pw_quota' /usr/include/pwd.h >/dev/null 2>&1; then
+    $cppstdin $cppflags </usr/include/pwd.h >$$.h
+    if $contains 'pw_quota' $$.h >/dev/null 2>&1; then
 	d_pwquota="$define"
     else
 	d_pwquota="$undef"
     fi
-    if $contains 'pw_age' /usr/include/pwd.h >/dev/null 2>&1; then
+    if $contains 'pw_age' $$.h >/dev/null 2>&1; then
 	d_pwage="$define"
     else
 	d_pwage="$undef"
     fi
-    if $contains 'pw_change' /usr/include/pwd.h >/dev/null 2>&1; then
+    if $contains 'pw_change' $$.h >/dev/null 2>&1; then
 	d_pwchange="$define"
     else
 	d_pwchange="$undef"
     fi
-    if $contains 'pw_class' /usr/include/pwd.h >/dev/null 2>&1; then
+    if $contains 'pw_class' $$.h >/dev/null 2>&1; then
 	d_pwclass="$define"
     else
 	d_pwclass="$undef"
     fi
-    if $contains 'pw_expire' /usr/include/pwd.h >/dev/null 2>&1; then
+    if $contains 'pw_expire' $$.h >/dev/null 2>&1; then
 	d_pwexpire="$define"
     else
 	d_pwexpire="$undef"
     fi
+    rm -f $$.h
 else
     i_pwd="$undef"
     d_pwquota="$undef"
@@ -1636,7 +1780,6 @@ set setruid d_setruid
 eval $inlibc
 
 socketlib=''
-sockethdr=''
 : see whether socket exists
 echo " "
 if $contains socket libc.list >/dev/null 2>&1; then
@@ -1665,7 +1808,6 @@ else
 	    if $contains socket libc.list >/dev/null 2>&1; then
 		echo "but the Wollongong group seems to have hacked it in."
 		socketlib="-lnet"
-		sockethdr="-I/usr/netinclude"
 		d_socket="$define"
 		: now check for advanced features
 		if $contains setsockopt libc.list >/dev/null 2>&1; then
@@ -1767,6 +1909,11 @@ else
     d_tminsys="$define"
     i_systime="$define"
 fi
+if $contains '^#.*include.*<time\.h>' /usr/include/sys/time.h >/dev/null 2>&1 ; then
+    i_timetoo="$undef"
+else
+    i_timetoo="$define"
+fi
 
 : see if this is a varargs system
 echo " "
@@ -1792,6 +1939,10 @@ else
     d_voidsig="$undef"
 fi
 
+: see if there is a wait4
+set wait4 d_wait4
+eval $inlibc
+
 : check for void type
 echo " "
 $cat <<EOM
@@ -1880,7 +2031,8 @@ case "$gidtype" in
 esac
 cont=true
 echo " "
-rp="What type are the group ids are returned by getgroups()? [$dflt]"
+echo "(The following only matters if you have getgroups().)"
+rp="What type are the group ids returned by getgroups()? [$dflt]"
 $echo $n "$rp $c"
 . myread
 gidtype="$ans"
@@ -1907,7 +2059,7 @@ fi
 
 : see if this is a netinet/in.h system
 echo " "
-if $test -r /usr/include/netinet/in.h ; then
+if xxx=`loc netinet/in.h x /usr/include /usr/local/include /usr/netinclude`; then
     i_niin="$define"
     echo "netinet/in.h found."
 else
@@ -2047,11 +2199,30 @@ echo " "
 case "$sig_name" in
 '')
     echo "Generating a list of signal names..."
-    set X `kill -l 2>/dev/null`
+    set X `cat /usr/include/signal.h /usr/include/sys/signal.h 2>&1 | awk '
+$1 ~ /^#define$/ && $2 ~ /^SIG[A-Z0-9]*$/ && $3 ~ /^[1-9][0-9]*$/ {
+    sig[$3] = substr($2,4,20)
+    if (max < $3 && $3 < 60) {
+	max = $3
+    }
+}
+
+END {
+    for (i=1; i<=max; i++) {
+	if (sig[i] == "")
+	    printf "%d", i
+	else
+	    printf "%s", sig[i]
+	if (i < max)
+	    printf " "
+    }
+    printf "\n"
+}
+'`
     shift
     case $# in
     0)  echo 'kill -l' >/tmp/foo$$
-	set X `/bin/csh -f </tmp/foo$$`
+	set X `$csh -f </tmp/foo$$`
 	shift
 	case $# in
 	0)set HUP INT QUIT ILL TRAP IOT EMT FPE KILL BUS SEGV SYS PIPE ALRM TERM
@@ -2102,55 +2273,6 @@ Log='$Log'
 Header='$Header'
 
 
-: see if we should include -ldbm
-echo " "
-if $test -r /usr/lib/libdbm.a || $test -r /usr/local/lib/libdbm.a ; then
-    echo "-ldbm found."
-    libdbm='-ldbm'
-else
-    ans=`loc libdbm.a x $libpth`
-    case "$ans" in
-    x)
-	echo "No dbm library found."
-	libdbm=''
-	;;
-    *)
-	echo "DBM library found in $ans."
-	libdbm="$ans"
-	;;
-    esac
-fi
-
-: see if we should include -lndir
-echo " "
-if $test -r /usr/lib/libndir.a || $test -r /usr/local/lib/libndir.a ; then
-    echo "New directory library found."
-    libndir='-lndir'
-else
-    ans=`loc libndir.a x $libpth`
-    case "$ans" in
-    x)
-	echo "No ndir library found."
-	libndir=''
-	;;
-    *)
-	echo "New directory library found in $ans."
-	libndir="$ans"
-	;;
-    esac
-fi
-case "$libndir" in
-'') ;;
-*)
-    case "$d_readdir" in
-    $define)
-	echo "Since you have readdir in the C library, I'll ignore $libndir"
-	libndir=''
-	;;
-    esac
-    ;;
-esac
-
 : see if we should include -lnm
 echo " "
 if $test -r /usr/lib/libnm.a || $test -r /usr/local/lib/libnm.a ; then
@@ -2211,8 +2333,8 @@ $startsh
 # This file was produced by running the Configure script.
 
 d_eunice='$d_eunice'
-eunicefix='$eunicefix'
 define='$define'
+eunicefix='$eunicefix'
 loclist='$loclist'
 expr='$expr'
 sed='$sed'
@@ -2263,6 +2385,7 @@ lp='$lp'
 touch='$touch'
 make='$make'
 date='$date'
+csh='$csh'
 Log='$Log'
 Header='$Header'
 bin='$bin'
@@ -2275,6 +2398,7 @@ d_bcopy='$d_bcopy'
 d_charsprf='$d_charsprf'
 d_crypt='$d_crypt'
 cryptlib='$cryptlib'
+d_csh='$d_csh'
 d_dosuid='$d_dosuid'
 d_dup2='$d_dup2'
 d_fchmod='$d_fchmod'
@@ -2311,7 +2435,6 @@ d_socket='$d_socket'
 d_sockpair='$d_sockpair'
 d_oldsock='$d_oldsock'
 socketlib='$socketlib'
-sockethdr='$sockethdr'
 d_statblks='$d_statblks'
 d_stdstdio='$d_stdstdio'
 d_strctcpy='$d_strctcpy'
@@ -2319,11 +2442,13 @@ d_symlink='$d_symlink'
 d_syscall='$d_syscall'
 d_tminsys='$d_tminsys'
 i_systime='$i_systime'
+i_timetoo='$i_timetoo'
 d_varargs='$d_varargs'
 d_vfork='$d_vfork'
 d_voidsig='$d_voidsig'
 d_vprintf='$d_vprintf'
 d_charvspr='$d_charvspr'
+d_wait4='$d_wait4'
 gidtype='$gidtype'
 i_dirent='$i_dirent'
 d_dirnamlen='$d_dirnamlen'
@@ -2333,14 +2458,15 @@ i_niin='$i_niin'
 i_pwd='$i_pwd'
 d_pwquota='$d_pwquota'
 d_pwage='$d_pwage'
+d_pwchange='$d_pwchange'
+d_pwclass='$d_pwclass'
+d_pwexpire='$d_pwexpire'
 i_sysdir='$i_sysdir'
 i_sysioctl='$i_sysioctl'
 i_varargs='$i_varargs'
 i_vfork='$i_vfork'
 intsize='$intsize'
 libc='$libc'
-libdbm='$libdbm'
-libndir='$libndir'
 libnm='$libnm'
 mallocsrc='$mallocsrc'
 mallocobj='$mallocobj'
@@ -2355,6 +2481,7 @@ large='$large'
 huge='$huge'
 optimize='$optimize'
 ccflags='$ccflags'
+cppflags='$cppflags'
 ldflags='$ldflags'
 cc='$cc'
 libs='$libs'