perl 1.0 patch 13: fix for faulty patch 12, plus random portability glitches

I botched patch #12, so that split(' ') only works on the first
line of input due to unintended interference by the optimization
that was added at the same time.  Yes, I tested it, but only on
one line of input.  *Sigh*

Some glitches have turned up on some of the rusty pig iron out there,
so here are some unglitchifications.

9 files changed, 89 insertions, 13 deletions

diff --git a/Configure b/Configure
index d55cb723d8..991f3bbae1 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 1.0.1.5 88/01/30 09:21:20 root Exp $
+# $Header: Configure,v 1.0.1.6 88/02/02 11:20:07 root Exp $
 #
 # Yes, you may rip this off to use in other distribution packages.
 # (Note: this Configure script was generated automatically.  Rather than
@@ -70,10 +70,12 @@ cpp=''
 cppminus=''
 d_bcopy=''
 d_charsprf=''
+d_crypt=''
 d_index=''
 d_statblks=''
 d_stdstdio=''
 d_strctcpy=''
+d_symlink=''
 d_tminsys=''
 d_vfork=''
 d_voidsig=''
@@ -664,6 +666,16 @@ else
     d_charsprf="$undef"
 fi
 
+: see if crypt exists
+echo " "
+if $contains crypt libc.list >/dev/null 2>&1; then
+    echo 'crypt() found.'
+    d_crypt="$define"
+else
+    echo 'crypt() not found.'
+    d_crypt="$undef"
+fi
+
 : index or strcpy
 echo " "
 dflt=y
@@ -1233,6 +1245,16 @@ else
     cc=cc
 fi
 
+: see if symlink exists
+echo " "
+if $contains symlink libc.list >/dev/null 2>&1; then
+    echo 'symlink() found.'
+    d_symlink="$define"
+else
+    echo 'symlink() not found.'
+    d_symlink="$undef"
+fi
+
 : see if we should include -lnm
 echo " "
 if $test -r /usr/lib/libnm.a || $test -r /usr/local/lib/libnm.a ; then
@@ -1328,10 +1350,12 @@ cpp='$cpp'
 cppminus='$cppminus'
 d_bcopy='$d_bcopy'
 d_charsprf='$d_charsprf'
+d_crypt='$d_crypt'
 d_index='$d_index'
 d_statblks='$d_statblks'
 d_stdstdio='$d_stdstdio'
 d_strctcpy='$d_strctcpy'
+d_symlink='$d_symlink'
 d_tminsys='$d_tminsys'
 d_vfork='$d_vfork'
 d_voidsig='$d_voidsig'
diff --git a/Makefile.SH b/Makefile.SH
index a486289535..8845396539 100644
--- a/Makefile.SH
+++ b/Makefile.SH
@@ -12,11 +12,20 @@ esac
 case "$0" in
 */*) cd `expr X$0 : 'X\(.*\)/'` ;;
 esac
+
+case "$d_symlink" in
+*define*) sln='ln -s' ;;
+*) sln='ln';;
+esac
+
 echo "Extracting Makefile (with variable substitutions)"
 cat >Makefile <<!GROK!THIS!
-# $Header: Makefile.SH,v 1.0.1.4 88/01/28 10:17:59 root Exp $
+# $Header: Makefile.SH,v 1.0.1.5 88/02/02 11:20:49 root Exp $
 #
 # $Log:	Makefile.SH,v $
+# Revision 1.0.1.5  88/02/02  11:20:49  root
+# patch13: added d_symlink dependency, changed TEST to ./perl TEST.
+# 
 # Revision 1.0.1.4  88/01/28  10:17:59  root
 # patch8: added perldb.man
 # 
@@ -44,6 +53,7 @@ SMALL = $small
 LARGE = $large $split
 mallocsrc = $mallocsrc
 mallocobj = $mallocobj
+SLN = $sln
 
 libs = $libnm -lm
 !GROK!THIS!
@@ -152,7 +162,7 @@ depend: makedepend
 
 test: perl
 	chmod 755 t/TEST t/base.* t/comp.* t/cmd.* t/io.* t/op.*
-	cd t && (rm -f perl; ln -s ../perl . || ln ../perl .) && TEST
+	cd t && (rm -f perl; $(SLN) ../perl .) && ./perl TEST
 
 clist:
 	echo $(c) | tr ' ' '\012' >.clist
diff --git a/arg.c b/arg.c
index e3b3c88815..74da53c1da 100644
--- a/arg.c
+++ b/arg.c
@@ -1,6 +1,9 @@
-/* $Header: arg.c,v 1.0.1.6 88/02/01 17:32:26 root Exp $
+/* $Header: arg.c,v 1.0.1.7 88/02/02 11:22:19 root Exp $
  *
  * $Log:	arg.c,v $
+ * Revision 1.0.1.7  88/02/02  11:22:19  root
+ * patch13: fixed split(' ') to work right second time.  Added CRYPT dependency.
+ * 
  * Revision 1.0.1.6  88/02/01  17:32:26  root
  * patch12: made split(' ') behave like awk in ignoring leading white space.
  * 
@@ -225,7 +228,7 @@ STR ***retary;
 	m = str_get(eval(spat->spat_runtime,Null(STR***)));
 	if (!*m || (*m == ' ' && !m[1])) {
 	    m = "[ \\t\\n]+";
-	    while (isspace(*s)) s++;
+	    spat->spat_flags |= SPAT_SKIPWHITE;
 	}
 	if (spat->spat_runtime->arg_type == O_ITEM &&
 	  spat->spat_runtime[1].arg_type == A_SINGLE) {
@@ -251,6 +254,10 @@ STR ***retary;
     if (!ary)
 	myarray = ary = anew();
     ary->ary_fill = -1;
+    if (spat->spat_flags & SPAT_SKIPWHITE) {
+	while (isspace(*s))
+	    s++;
+    }
     while (*s && (m = execute(&spat->spat_compex, s, (iters == 0), 1))) {
 	if (spat->spat_compex.numsubs)
 	    s = spat->spat_compex.subbase;
@@ -1952,8 +1959,13 @@ STR ***retary;		/* where to return an array to, null if nowhere */
 	retary = Null(STR***);		/* do_stat already did retary */
 	goto donumset;
     case O_CRYPT:
+#ifdef CRYPT
 	tmps = str_get(sarg[1]);
 	str_set(str,crypt(tmps,str_get(sarg[2])));
+#else
+	fatal(
+	  "The crypt() function is unimplemented due to excessive paranoia.");
+#endif
 	break;
     case O_EXP:
 	value = exp(str_gnum(sarg[1]));
diff --git a/config.h.SH b/config.h.SH
index cb0eea5a9a..a1778a4568 100644
--- a/config.h.SH
+++ b/config.h.SH
@@ -65,6 +65,12 @@ cat <<!GROK!THIS! >config.h
  */
 #$d_charsprf	CHARSPRINTF 	/**/
 
+/* CRYPT:
+ *	This symbol, if defined, indicates that the crypt routine is available
+ *	to encrypt passwords and the like.
+ */
+#$d_crypt	CRYPT		/**/
+
 /* index:
  *	This preprocessor symbol is defined, along with rindex, if the system
  *	uses the strchr and strrchr routines instead.
@@ -95,6 +101,12 @@ cat <<!GROK!THIS! >config.h
  */
 #$d_strctcpy	STRUCTCOPY	/**/
 
+/* SYMLINK:
+ *	This symbol, if defined, indicates that the symlink routine is available
+ *	to create symbolic links.
+ */
+#$d_symlink	SYMLINK		/**/
+
 /* TMINSYS:
  *	This symbol is defined if this system declares "struct tm" in
  *	in <sys/time.h> rather than <time.h>.  We can't just say
diff --git a/makedepend.SH b/makedepend.SH
index 6b20cac7bf..5a8d9794fe 100644
--- a/makedepend.SH
+++ b/makedepend.SH
@@ -15,9 +15,12 @@ esac
 echo "Extracting makedepend (with variable substitutions)"
 $spitshell >makedepend <<!GROK!THIS!
 $startsh
-# $Header: makedepend.SH,v 1.0 87/12/18 17:54:32 root Exp $
+# $Header: makedepend.SH,v 1.0.1.1 88/02/02 11:24:05 root Exp $
 #
 # $Log:	makedepend.SH,v $
+# Revision 1.0.1.1  88/02/02  11:24:05  root
+# patch13: removed spurious -I./h.
+# 
 # Revision 1.0  87/12/18  17:54:32  root
 # Initial revision
 # 
@@ -83,7 +86,7 @@ for file in `$cat .clist`; do
 	-e 's|\\$||' \
 	-e p \
 	-e '}'
-    $cpp -I/usr/local/include -I. -I./h $file.c | \
+    $cpp -I/usr/local/include -I. $file.c | \
     $sed \
 	-e '/^# *[0-9]/!d' \
 	-e 's/^.*"\(.*\)".*$/'$filebase'.o: \1/' \
diff --git a/patchlevel.h b/patchlevel.h
index bc5f1c8250..910cae8f16 100644
--- a/patchlevel.h
+++ b/patchlevel.h
@@ -1 +1 @@
-#define PATCHLEVEL 12
+#define PATCHLEVEL 13
diff --git a/spat.h b/spat.h
index d1d2dc30d9..04b30e464a 100644
--- a/spat.h
+++ b/spat.h
@@ -1,6 +1,9 @@
-/* $Header: spat.h,v 1.0 87/12/18 13:06:10 root Exp $
+/* $Header: spat.h,v 1.0.1.1 88/02/02 11:24:37 root Exp $
  *
  * $Log:	spat.h,v $
+ * Revision 1.0.1.1  88/02/02  11:24:37  root
+ * patch13: added flag for stripping leading spaces on split.
+ * 
  * Revision 1.0  87/12/18  13:06:10  root
  * Initial revision
  * 
@@ -20,6 +23,7 @@ struct scanpat {
 #define SPAT_USE_ONCE 2			/* use pattern only once per article */
 #define SPAT_SCANFIRST 4		/* initial constant not anchored */
 #define SPAT_SCANALL 8			/* initial constant is whole pat */
+#define SPAT_SKIPWHITE 16		/* skip leading whitespace for split */
 
 EXT SPAT *spat_root;		/* list of all spats */
 EXT SPAT *curspat;		/* what to do \ interps from */
diff --git a/stab.c b/stab.c
index fc158ff19a..845cec3b42 100644
--- a/stab.c
+++ b/stab.c
@@ -1,6 +1,9 @@
-/* $Header: stab.c,v 1.0.1.1 88/01/28 10:35:17 root Exp $
+/* $Header: stab.c,v 1.0.1.2 88/02/02 11:25:53 root Exp $
  *
  * $Log:	stab.c,v $
+ * Revision 1.0.1.2  88/02/02  11:25:53  root
+ * patch13: moved extern int out of function for a poor Xenix machine.
+ * 
  * Revision 1.0.1.1  88/01/28  10:35:17  root
  * patch8: changed some stabents to support eval operator.
  * 
@@ -64,13 +67,14 @@ static char *sig_name[] = {
     ,0
     };
 
+extern int errno;
+
 STR *
 stab_str(stab)
 STAB *stab;
 {
     register int paren;
     register char *s;
-    extern int errno;
 
     switch (*stab->stab_name) {
     case '0': case '1': case '2': case '3': case '4':
diff --git a/t/op.split b/t/op.split
index 988af49d3d..a6bb1b47c8 100644
--- a/t/op.split
+++ b/t/op.split
@@ -1,8 +1,8 @@
 #!./perl
 
-# $Header: op.split,v 1.0 87/12/18 13:14:20 root Exp $
+# $Header: op.split,v 1.0.1.1 88/02/02 11:26:37 root Exp $
 
-print "1..4\n";
+print "1..6\n";
 
 $FS = ':';
 
@@ -22,3 +22,10 @@ if (join(".",@ary) eq "a.b.c.\n") {print "ok 3\n";} else {print "not ok 3\n";}
 $_ = "a:b:c::::";
 @ary = split(/:/);
 if (join(".",@ary) eq "a.b.c") {print "ok 4\n";} else {print "not ok 4\n";}
+
+$_ = join(':',split(' ','    a b	c '));
+if ($_ eq 'a:b:c') {print "ok 5\n";} else {print "not ok 5\n";}
+
+$_ = join(':',split(/ */,"foo  bar bie\tdoll"));
+if ($_ eq "f:o:o:b:a:r:b:i:e:\t:d:o:l:l")
+	{print "ok 6\n";} else {print "not ok 6\n";}