X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=Configure;h=3658695029fd3dface2e5b8968fa40cf51ccae91;hb=b3c649451aa23903a1f1aa5b0d54e8244611b239;hp=532aed1abdefdcd75053b84e077c91cb7eba0e1a;hpb=43dddb5979cb03af335f65a6070fe864ce8afd7e;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/Configure b/Configure
index 532aed1..3658695 100755
--- a/Configure
+++ b/Configure
@@ -11,11 +11,10 @@
 # Yes, you may rip this off to use in other distribution packages. This
 # script belongs to the public domain and cannot be copyrighted.
 #
-# (Note: this Configure script was generated automatically. Rather than
+# Note: this Configure script was generated automatically. Rather than
 # working with this copy of Configure, you may wish to get metaconfig.
-# The dist-3.0 package (which contains metaconfig) was posted in
-# comp.sources.misc and is available on CPAN under authors/id/RAM so
-# you may fetch it yourself from your nearest archive site.)
+# The dist package (which contains metaconfig) is available via SVN:
+#     svn co https://svn.sourceforge.net/svnroot/dist/trunk/dist
 #
 #
 # Though this script was generated by metaconfig, it is OK to send
@@ -24,9 +23,9 @@
 # See Porting/pumpkin.pod for more information on metaconfig.
 #
 
-# $Id: Head.U,v 3.0.1.9 1997/02/28 15:02:09 ram Exp $
+# $Id: Head.U 6 2006-08-25 22:21:46Z rmanfredi $
 #
-# Generated on Wed Apr 18 21:01:29 CEST 2007 [metaconfig 3.0 PL70]
+# Generated on Mon Jan 14 17:33:05 CET 2008 [metaconfig 3.0 PL70]
 # (with additional metaconfig patches by perlbug@perl.org)
 
 cat >c1$$ <<EOF
@@ -88,9 +87,9 @@ esac
 
 : Proper separator for the PATH environment variable
 p_=:
-: On OS/2 this directory should exist if this is not floppy only system :-]
+: On OS/2 this directory should exist if this is not floppy only system ":-]"
 if test -d c:/. || ( uname -a | grep -i 'os\(/\|\)2' ) 2>&1 >/dev/null ; then
-    if test -n "$OS2_SHELL"; then
+	if test -n "$OS2_SHELL"; then
 		p_=\;
 		PATH=`cmd /c "echo %PATH%" | tr '\\\\' / `
 		OS2_SHELL=`cmd /c "echo %OS2_SHELL%" | tr '\\\\' / | tr '[A-Z]' '[a-z]'`
@@ -145,9 +144,9 @@ if test -d /usr/lpp -a -f /usr/bin/bsh -a -f /usr/bin/uname; then
 fi
 if test -f /osf_boot -a -f /usr/sbin/setld; then
 	if test X`/usr/bin/uname -s` = XOSF1; then
-	        avoidksh="to avoid Digital UNIX' ksh"
-	        newsh=/bin/sh
-	        unset BIN_SH # if this is 'xpg4' sh will start up ksh
+		avoidksh="to avoid Digital UNIX' ksh"
+		newsh=/bin/sh
+		unset BIN_SH
 	fi
 fi
 case "$inksh/$needksh" in
@@ -181,17 +180,19 @@ true)
 	esac
 	;;
 esac
+test -x "${newsh}" || unset newsh
 
-: if needed set CDPATH to a harmless value that is not chatty
+: if needed, set CDPATH to a harmless value that is not chatty
 : avoid bash 2.02 problems with empty CDPATH.
 case "$CDPATH" in
 '')	;;
 *)	case "$SHELL" in
-	*bash*)	CDPATH='.' ;;
-	*)		CDPATH='' ;;
+	*bash*) CDPATH='.' ;;
+	*) CDPATH='' ;;
 	esac
 	;;
 esac
+
 : Configure runs within the UU subdirectory
 test -d UU || mkdir UU
 cd UU && rm -f ./*
@@ -316,6 +317,7 @@ firstmakefile=''
 lib_ext=''
 obj_ext=''
 path_sep=''
+rm_try=''
 afs=''
 afsroot=''
 alignbytes=''
@@ -345,7 +347,6 @@ optimize=''
 cf_email=''
 cf_by=''
 cf_time=''
-charsize=''
 contains=''
 cpp_stuff=''
 cpplast=''
@@ -839,6 +840,7 @@ html3dir=''
 html3direxp=''
 installhtml3dir=''
 i_arpainet=''
+i_assert=''
 i_crypt=''
 db_hashtype=''
 db_prefixtype=''
@@ -1172,6 +1174,8 @@ uidtype=''
 archname64=''
 use64bitall=''
 use64bitint=''
+dtrace=''
+usedtrace=''
 usefaststdio=''
 ccflags_uselargefiles=''
 ldflags_uselargefiles=''
@@ -1233,6 +1237,7 @@ yacc=''
 yaccflags=''
 CONFIG=''
 
+: Detect odd OSs
 define='define'
 undef='undef'
 smallmach='pdp11 i8086 z8000 i80286 iAPX286'
@@ -1451,11 +1456,10 @@ else
 fi
 rm -f sharp
 
-
 : Save command line options in file UU/cmdline.opt for later use in
 : generating config.sh.
 cat > cmdline.opt <<EOSH
-# Configure command line arguments.
+: Configure command line arguments.
 config_arg0='$0'
 config_args='$*'
 config_argc=$#
@@ -1467,7 +1471,6 @@ for arg in "$@"; do
 	cat >>cmdline.opt <<EOSH
 config_arg$argn='$arg'
 EOSH
-	# Extreme backslashitis: replace each ' by '"'"'
 	cat <<EOC | sed -e "s/'/'"'"'"'"'"'"'/g" > cmdl.opt
 $arg
 EOC
@@ -1476,8 +1479,6 @@ EOC
 	argn=`expr $argn + 1`
 	args_sep=' '
 done
-# args_exp is good for restarting self: eval "set X $args_exp"; shift; $0 "$@"
-# used by ./hints/os2.sh
 rm -f cmdl.opt
 
 : produce awk script to parse command line options
@@ -1565,6 +1566,7 @@ while test $# -gt 0; do
 		fi
 		cd UU
 		shift;;
+	--help|\
 	-h) shift; error=true;;
 	-r) shift; reuseval=true;;
 	-s) shift; silent=true; realsilent=true;;
@@ -1608,7 +1610,7 @@ while test $# -gt 0; do
                  case "$zzz" in
                  *:*) zzz='' ;;
                  *)   xxx=append
-                      zzz=" "`echo "$yyy"|sed 's!^[^=]*=!!'` 
+                      zzz=" "`echo "$yyy"|sed 's!^[^=]*=!!'`
                       yyy=`echo "$yyy"|sed 's!=.*!!'` ;;
                  esac
                  ;;
@@ -1622,7 +1624,7 @@ while test $# -gt 0; do
                  *)   xxx=`echo "$yyy"|sed 's!:.*!!'`
                       yyy=`echo "$yyy"|sed 's!^[^:]*:!!'` ;;
                  esac
-                 ;;       
+                 ;;
             esac
 	    case "$xxx" in
 	    append)
@@ -1669,6 +1671,14 @@ Usage: $me [-dehrsEKOSV] [-f config.sh] [-D symbol] [-D symbol=value]
   -D : define symbol to have some value:
          -D symbol         symbol gets the value 'define'
          -D symbol=value   symbol gets the value 'value'
+       common used examples (see INSTALL for more info):
+         -Duse64bitint            use 64bit integers
+         -Duse64bitall            use 64bit integers and pointers
+         -Dusethreads             use thread support
+         -Dinc_version_list=none  do not include older perl trees in @INC
+         -DEBUGGING=none          DEBUGGING options
+         -Dcc=gcc                 choose your compiler
+         -Dprefix=/opt/perl5      choose your destination
   -E : stop at the end of questions, after having produced config.sh.
   -K : do not use unless you know what you are doing.
   -O : let -D and -U override definitions from loaded configuration file.
@@ -1676,16 +1686,19 @@ Usage: $me [-dehrsEKOSV] [-f config.sh] [-D symbol] [-D symbol=value]
   -U : undefine symbol:
          -U symbol    symbol gets the value 'undef'
          -U symbol=   symbol gets completely empty
+       e.g.:  -Uversiononly
   -A : manipulate symbol after the platform specific hints have been applied:
-	 -A symbol=value		append " "value to symbol
-	 -A append:symbol=value		append value to symbol
-	 -A define:symbol=value		define symbol to have value
-         -A clear:symbol		define symbol to be ''
-	 -A define:symbol		define symbol to be 'define'
-	 -A eval:symbol=value		define symbol to be eval of value
-	 -A prepend:symbol=value	prepend value to symbol
-	 -A undef:symbol		define symbol to be 'undef'
-	 -A undef:symbol=		define symbol to be ''
+         -A append:symbol=value   append value to symbol
+         -A symbol=value          like append:, but with a separating space
+         -A define:symbol=value   define symbol to have value
+         -A clear:symbol          define symbol to be ''
+         -A define:symbol         define symbol to be 'define'
+         -A eval:symbol=value     define symbol to be eval of value
+         -A prepend:symbol=value  prepend value to symbol
+         -A undef:symbol          define symbol to be 'undef'
+         -A undef:symbol=         define symbol to be ''
+       e.g.:  -A prepend:libswanted='cl pthread '
+              -A ccflags=-DSOME_MACRO
   -V : print version number and exit (with a zero status).
 EOM
 	exit 1
@@ -1720,7 +1733,7 @@ touch optdef.sh
 touch posthint.sh
 
 : set package name
-package=perl5
+package='perl5'
 first=`echo $package | sed -e 's/^\(.\).*/\1/'`
 last=`echo $package | sed -e 's/^.\(.*\)/\1/'`
 case "`echo AbyZ | tr '[:lower:]' '[:upper:]' 2>/dev/null`" in
@@ -1766,11 +1779,11 @@ case "$src" in
 '')	src=/
 	rsrc=/
 	;;
-/*) rsrc="$src";;
-*) rsrc="../$src";;
+/*)	rsrc="$src";;
+*)	rsrc="../$src";;
 esac
 if test -f $rsrc/Configure && \
-	$contains "^package=$package$" $rsrc/Configure >/dev/null 2>&1
+	$contains "^package='$package'\$" $rsrc/Configure >/dev/null 2>&1
 then
    : found it, so we are ok.
 else
@@ -1962,8 +1975,8 @@ else
 fi
 rm -f missing x??
 
-echo " "
 : Find the appropriate value for a newline for tr
+echo " "
 if test -n "$DJGPP"; then
        trnl='\012'
 fi
@@ -2107,6 +2120,7 @@ persist across sessions for $package.
 You may safely delete it if you wish.
 EOF
 
+: See if we are using a devel version and want that
 xversion=`awk '/define[ 	]+PERL_VERSION/ {print $3}' $rsrc/patchlevel.h`
 case "$usedevel" in
 $define|true|[yY]*) ;;
@@ -2405,7 +2419,7 @@ ln)
 	;;
 esac
 case "$make" in
-make)	
+make)
 	case "$gmake" in
 	gmake)
 	echo "I can't find make or gmake, and my life depends on it." >&4
@@ -2414,7 +2428,7 @@ make)
 	;;
 	esac
 	;;
-esac	
+esac
 case "$gmake" in
 gmake)	;;
 *)	# We can't have osname yet.
@@ -2470,6 +2484,20 @@ FOO
 	;;
 esac
 
+# This question was auctioned at YAPC::Europe-2007 in Vienna
+# I never promised you could answer it. I only auctioned the question.
+cat <<FOO
+The following message is sponsored by
+
+  Dresden.pm<--The stars should be here.
+
+Dear Perl user, system administrator or package
+maintainer, the Perl community sends greetings to
+you. Do you (emblematical) greet back [Y/n]? n
+
+FOO
+
+: Check what type of C compiler we use
 cat <<EOS >trygcc
 $startsh
 EOS
@@ -2491,15 +2519,36 @@ EOM
         case "$cc" in
         *gcc*) trygcc=no ;;
         esac
-        case "`$cc -v -c try.c 2>&1`" in
-        *gcc*) trygcc=no ;;
-        esac
+	# Skip this test because it gives a false match on output like:
+	#    ./trygcc: line 23: cc: command not found
+        # case "`$cc -v -c try.c 2>&1`" in
+        # *gcc*) trygcc=no ;;
+        # esac
         if $test X"$trygcc" = Xyes; then
             if gcc -o try -c try.c; then
                 echo " "
                 echo "You seem to have a working gcc, though." >&4
-                rp="Would you like to use it?"
-                dflt=y
+		# Switching compilers may undo the work of hints files.
+		# The most common problem is -D_REENTRANT for threads.
+		# This heuristic catches that case, but gets false positives
+		# if -Dusethreads was not actually specified.  Better to
+		# bail out here with a useful message than fail 
+		# mysteriously later. Should we perhaps just try to
+		# re-invoke Configure -Dcc=gcc config_args ?
+		if $test -f usethreads.cbu; then
+			$cat >&4 <<EOM 
+
+*** However, any setting of the C compiler flags (e.g. for thread support)
+*** will be lost.  It may be necessary for you to restart Configure and
+*** add -Dcc=gcc to your Configure command line.
+
+EOM
+			rp="Would you like to go ahead and try gcc anyway?"
+			dflt=n
+		else
+			rp="Would you like to use it?"
+			dflt=y
+		fi
                 if $test -f myread; then
                     . ./myread
                 else
@@ -2512,15 +2561,6 @@ EOM
                 fi  
                 case "$ans" in
                 [yY]*) cc=gcc; ccname=gcc; ccflags=''; despair=no;
-                       if $test -f usethreads.cbu; then
-                           $cat >&4 <<EOM 
-
-*** However, any setting of the C compiler flags (e.g. for thread support)
-*** has been lost.  It may be necessary to pass -Dcc=gcc to Configure
-*** (together with e.g. -Dusethreads).
-
-EOM
-                       fi;;
                 esac
             fi
         fi
@@ -2631,7 +2671,7 @@ case "$lns" in
 esac
 echo " "
 
-
+: Make symlinks util
 case "$mksymlinks" in
 $define|true|[yY]*)
 	case "$src" in
@@ -2683,7 +2723,7 @@ $define|true|[yY]*)
 	;;
 esac
 
-
+: Check for Cross-Compilation
 case "$usecrosscompile" in
 $define|true|[yY]*)
 	$echo "Cross-compiling..."
@@ -3002,7 +3042,7 @@ myuname=`$uname -a 2>/dev/null`
 $test -z "$myuname" && myuname=`hostname 2>/dev/null`
 # tr '[A-Z]' '[a-z]' would not work in EBCDIC
 # because the A-Z/a-z are not consecutive.
-myuname=`echo $myuname | $sed -e 's/^[^=]*=//' -e 's/\///g' | \
+myuname=`echo $myuname | $sed -e 's/^[^=]*=//' -e "s,['/],,g" | \
 	./tr '[A-Z]' '[a-z]' | $tr $trnl ' '`
 newmyuname="$myuname"
 dflt=n
@@ -3862,12 +3902,12 @@ esac
 prefix="$ans"
 prefixexp="$ansexp"
 
+: is AFS running?
 case "$afsroot" in
 '')	afsroot=/afs ;;
 *)	afsroot=$afsroot ;;
 esac
 
-: is AFS running?
 echo " "
 case "$afs" in
 $define|true)	afs=true ;;
@@ -3982,6 +4022,7 @@ $undef$define) . ./whoa; eval "$var=\$tu";;
 *) eval "$var=$val";;
 esac'
 
+: Check is we will use socks
 case "$usesocks" in
 $define|true|[yY]*)	dflt='y';;
 *) dflt='n';;
@@ -3997,7 +4038,7 @@ EOM
 rp='Build Perl for SOCKS?'
 . ./myread
 case "$ans" in
-y|Y)	val="$define" ;;     
+y|Y)	val="$define" ;;
 *)      val="$undef" ;;
 esac
 set usesocks
@@ -4007,6 +4048,7 @@ case "$usesocks" in
 $define|true|[yY]*) useperlio="$define";;
 esac
 
+: Check if we want perlio
 case "$useperlio" in
 $define|true|[yY]*|'')	dflt='y';;
 *) dflt='n';;
@@ -4025,16 +4067,16 @@ EOM
 rp='Use the PerlIO abstraction layer?'
 . ./myread
 case "$ans" in
-y|Y) 
+y|Y)
 	val="$define"
 	;;
-*)      
+*)
 	echo "Ok, doing things the stdio way."
 	val="$undef"
 	;;
 esac
 set useperlio
-eval $setvar 
+eval $setvar
 
 case "$usesocks" in
 $define|true|[yY]*)
@@ -4051,7 +4093,6 @@ EOM
 	;;
 esac
 
-	
 : get the patchlevel
 echo " "
 echo "Getting the current patchlevel..." >&4
@@ -4062,7 +4103,7 @@ if $test -r $rsrc/patchlevel.h;then
 	api_revision=`awk '/define[ 	]+PERL_API_REVISION/ {print $3}' $rsrc/patchlevel.h`
 	api_version=`awk '/define[ 	]+PERL_API_VERSION/ {print $3}' $rsrc/patchlevel.h`
 	api_subversion=`awk '/define[ 	]+PERL_API_SUBVERSION/ {print $3}' $rsrc/patchlevel.h`
-	perl_patchlevel=`egrep 'define PERL_PATCHNUM [0-9][0-9]|,"MAINT[0-9][0-9]*"' $rsrc/patchlevel.h|sed 's/[^0-9]//g'`
+	perl_patchlevel=`egrep ',"(MAINT|SMOKE)[0-9][0-9]*"' $rsrc/patchlevel.h|tail -1|sed 's/[^0-9]//g'`
 else
 	revision=0
 	patchlevel=0
@@ -4108,12 +4149,13 @@ if test "${api_revision}${api_version}${api_subversion}" = "550"; then
 	api_versionstring='5.005'
 fi
 
+: Do we want threads support and if so, what type
 case "$usethreads" in
 $define|true|[yY]*)     dflt='y';;
 *)     # Catch case where user specified ithreads or 5005threads but
        # forgot -Dusethreads (A.D. 4/2002)
        case "$useithreads$use5005threads" in
-       *$define*)      
+       *$define*)
 		case "$useperlio" in
 		"$define")	dflt='y' ;;
 		*)		dflt='n' ;;
@@ -4205,29 +4247,20 @@ EOM
 else
 : perl-5.9.x and later
 
-    use5005threads="$undef"
-    case "$usethreads" in
-    $define)
-	: Default to ithreads unless overridden on command line or with
-	: old config.sh
-	dflt='y'
-	case "$useithreads" in
-		$undef|false|[nN]*) dflt='n';;
-	esac
-	rp='Use the newer interpreter-based ithreads?'
-	. ./myread
-	case "$ans" in
-	y|Y)    val="$define" ;;
-	*)      val="$undef" ;;
+    if test X"$usethreads" = "X$define"; then
+	case "$use5005threads" in
+	    $define|true|[yY]*)
+		$cat >&4 <<EOM
+
+5.005 threads has been removed for 5.10.  Perl will be built using ithreads.
+
+EOM
+	    ;;
 	esac
-	set useithreads
-	eval $setvar
-	;;
-    *)
-	useithreads="$undef"
-	;;
-    esac
+    fi
 
+    use5005threads="$undef"
+    useithreads="$usethreads"
 fi
 
 if test X"$usethreads" = "X$define" -a "X$useperlio" = "Xundef"; then
@@ -4266,6 +4299,7 @@ EOM
     esac
 fi
 
+: Check if multiplicity is required
 cat <<EOM
 
 Perl can be built so that multiple Perl interpreters can coexist
@@ -4296,7 +4330,7 @@ esac
 set usemultiplicity
 eval $setvar
 
-
+: Check if morebits is requested
 case "$usemorebits" in
 "$define"|true|[yY]*)
 	use64bitint="$define"
@@ -4402,6 +4436,7 @@ chmod +x bsd usg v7 osf1 eunice xenix venix os2
 $eunicefix bsd usg v7 osf1 eunice xenix venix os2
 $rm -f foo
 
+: Checking the C compiler
 case "$cc" in
 '') dflt=cc;;
 *) dflt="$cc";;
@@ -4420,6 +4455,7 @@ if $test -f cc.cbu; then
 fi
 . ./checkcc
 
+: Check if we are using GNU gcc and what its version is
 echo " "
 echo "Checking for GNU cc in disguise and/or its version number..." >&4
 $cat >try.c <<EOM
@@ -4807,11 +4843,14 @@ lib_ext=$_a
 obj_ext=$_o
 path_sep=$p_
 
+rm_try="$rm -f try try$_exe a.out .out try.[cho] try.$_o core core.try* try.core*"
+
 : Which makefile gets called first.  This is used by make depend.
 case "$firstmakefile" in
 '') firstmakefile='makefile';;
 esac
 
+: Check for uselongdouble support
 case "$ccflags" in
 *-DUSE_LONG_DOUBLE*|*-DUSE_MORE_BITS*) uselongdouble="$define" ;;
 esac
@@ -4888,7 +4927,7 @@ for thislib in $libswanted; do
 		xxx=$thisdir/lib$thislib.$so
 	        $test -f "$xxx" && eval $libscheck
 		$test -f "$xxx" && libstyle=shared
-	    fi	
+	    fi
 	    if test ! -f "$xxx"; then
 		xxx=$thisdir/lib$thislib$_a
 	        $test -f "$xxx" && eval $libscheck
@@ -4930,7 +4969,7 @@ for thislib in $libswanted; do
 		   ;;
 		esac
 		break
-	    fi	
+	    fi
 	done
 	if $test ! -f "$xxx"; then
 	    echo "No -l$thislib."
@@ -5014,6 +5053,32 @@ case "$DEBUGGING" in
 both|$define) dflt='-DDEBUGGING'
 esac
 
+: argument order is deliberate, as the flag will start with - which set could
+: think is an option
+checkccflag='check=$1; flag=$2; callback=$3;
+echo " ";
+echo "Checking if your compiler accepts $flag" 2>&1;
+echo "int main(void) { return 0; }" > gcctest.c;
+if $cc -O2 $flag -o gcctest gcctest.c 2>gcctest.out && ./gcctest; then
+    echo "Yes, it does." 2>&1;
+    if $test -s gcctest.out ; then
+        echo "But your platform does not like it:";
+        cat gcctest.out;
+    else
+	case "$ccflags" in
+	*$check*)
+	    echo "Leaving current flags $ccflags alone." 2>&1
+	    ;;
+	*) dflt="$dflt $flag";
+	    eval $callback
+	    ;;
+	esac
+    fi
+else
+    echo "Nope, it does not, but that is ok." 2>&1;
+fi
+'
+
 : We will not override a previous value, but we might want to
 : augment a hint file
 case "$hint" in
@@ -5025,7 +5090,7 @@ default|recommended)
 	*-g*:old) dflt="$dflt -DDEBUGGING";;
 	esac
 	case "$gccversion" in
-	2*) if test -d /etc/conf/kconfig.d &&
+	2*) if $test -d /etc/conf/kconfig.d &&
 			$contains _POSIX_VERSION $usrinc/sys/unistd.h >/dev/null 2>&1
 		then
 			# Interactive Systems (ISC) POSIX mode.
@@ -5036,40 +5101,28 @@ default|recommended)
 	case "$gccversion" in
 	1*) ;;
 	2.[0-8]*) ;;
-	?*) 	echo " "
-		echo "Checking if your compiler accepts -fno-strict-aliasing" 2>&1
-		echo 'int main(void) { return 0; }' > gcctest.c
-		if $cc -O2 -fno-strict-aliasing -o gcctest gcctest.c; then
-			echo "Yes, it does." 2>&1
-			case "$ccflags" in
-			*strict-aliasing*)
-				echo "Leaving current flags $ccflags alone." 2>&1
-				;;
-			*) dflt="$dflt -fno-strict-aliasing" ;;
-			esac
-		else
-			echo "Nope, it doesn't, but that's ok." 2>&1
-		fi
+	?*)	set strict-aliasing -fno-strict-aliasing
+		eval $checkccflag
 		;;
 	esac
 	# For gcc, adding -pipe speeds up compilations for some, but apparently
 	# some assemblers can't read from stdin.  (It also slows down compilations
 	# in other cases, but those are apparently rarer these days.)  AD 5/2004.
 	case "$gccversion" in
-	?*)	echo " "
-		echo "Checking if your compiler accepts -pipe" 2>&1
-		echo 'int main(void) { return 0; }' > gcctest.c
-		if $cc -pipe -o gcctest gcctest.c; then
-			echo "Yes, it does." 2>&1
-			case "$ccflags" in
-			*-pipe*)
-				echo "Leaving current flags $ccflags alone." 2>&1
-				;;
-			*) dflt="$dflt -pipe" ;;
-			esac
-		else
-			echo "Nope, it doesn't, but that's ok." 2>&1
-		fi
+	?*)	set pipe -pipe
+		eval $checkccflag
+		;;
+	esac
+
+	# on x86_64 (at least) we require an extra library (libssp) in the
+	# link command line. This library is not named, so I infer that it is
+	# an implementation detail that may change. Hence the safest approach
+	# is to add the flag to the flags passed to the compiler at link time,
+	# as that way the compiler can do the right implementation dependant
+	# thing. (NWC)
+	case "$gccversion" in
+	?*)	set stack-protector -fstack-protector 'ldflags="$ldflags -fstack-protector"'
+		eval $checkccflag
 		;;
 	esac
 	;;
@@ -5276,7 +5329,7 @@ and I got the following output:
 EOM
 dflt=y
 if $sh -c "$cc -o try $optimize $ccflags $ldflags try.c $libs" >>try.msg 2>&1; then
-	if $sh -c "$run ./try" >>try.msg 2>&1; then
+	if $sh -c "$run ./try " >>try.msg 2>&1; then
 		xxx=`$run ./try`
 		case "$xxx" in
 		"Ok") dflt=n ;;
@@ -5325,7 +5378,7 @@ y)
 	;;
 n) echo "OK, that should do.";;
 esac
-$rm -f try try.* core
+$rm_try gcctest gcctest.out
 
 : define a shorthand compile call
 compile='
@@ -5500,7 +5553,7 @@ EOM
 	fi
 	;;
 esac
-$rm -f try try.*
+$rm_try
 
 : check for long long
 echo " "
@@ -5514,7 +5567,7 @@ else
 	val="$undef"
 	echo "You do not have long long."
 fi
-$rm try.*
+$rm_try
 set d_longlong
 eval $setvar
 
@@ -5545,10 +5598,10 @@ EOCP
 	fi
 	if $test "X$longsize" = "X$longlongsize"; then
 		echo "(That isn't any different from an ordinary long.)"
-	fi	
+	fi
 	;;
 esac
-$rm -f try.* try
+$rm_try
 
 : see if inttypes.h is available
 : we want a real compile instead of Inhdr because some systems
@@ -5568,7 +5621,7 @@ else
 	echo "<inttypes.h> NOT found." >&4
 	val="$undef"
 fi
-$rm -f try.c try
+$rm_try
 set i_inttypes
 eval $setvar
 
@@ -5591,11 +5644,11 @@ else
 	val="$undef"
 	echo "You do not have int64_t."
 fi
-$rm -f try try.*
+$rm_try
 set d_int64_t
 eval $setvar
 
-
+: Check if 64bit ints have a quad type
 echo " "
 echo "Checking which 64-bit integer type we could use..." >&4
 
@@ -5654,7 +5707,7 @@ case "$quadtype" in
 	;;
 esac
 
-
+: Do we want 64bit support
 case "$uselonglong" in
 "$define"|true|[yY]*)
 	cat <<EOM >&4
@@ -5663,7 +5716,7 @@ case "$uselonglong" in
 EOM
 	use64bitint="$define"
 	;;
-esac                          
+esac
 case "$use64bits" in
 "$define"|true|[yY]*)
 	cat <<EOM >&4
@@ -5672,7 +5725,7 @@ case "$use64bits" in
 EOM
 	use64bitint="$define"
 	;;
-esac                          
+esac
 case "$use64bitints" in
 "$define"|true|[yY]*)
 	cat <<EOM >&4
@@ -5681,7 +5734,7 @@ case "$use64bitints" in
 EOM
 	use64bitint="$define"
 	;;
-esac                          
+esac
 case "$use64bitsint" in
 "$define"|true|[yY]*)
 	cat <<EOM >&4
@@ -5690,7 +5743,7 @@ case "$use64bitsint" in
 EOM
 	use64bitint="$define"
 	;;
-esac                          
+esac
 case "$uselonglongs" in
 "$define"|true|[yY]*)
 	cat <<EOM >&4
@@ -5699,7 +5752,7 @@ case "$uselonglongs" in
 EOM
 	use64bitint="$define"
 	;;
-esac                          
+esac
 case "$use64bitsall" in
 "$define"|true|[yY]*)
 	cat <<EOM >&4
@@ -5708,7 +5761,7 @@ case "$use64bitsall" in
 EOM
 	use64bitall="$define"
 	;;
-esac                          
+esac
 
 case "$ccflags" in
 *-DUSE_LONG_LONG*|*-DUSE_64_BIT_INT*|*-DUSE_64_BIT_ALL*) use64bitint="$define";;
@@ -5759,7 +5812,7 @@ case "$use64bitall" in
    *) dflt='n' ;;
    esac
    ;;
-esac	
+esac
 cat <<EOM
 
 You may also choose to try maximal 64-bitness.  It means using as much
@@ -5872,7 +5925,7 @@ EOCP
 	fi
 	;;
 esac
-$rm -f try.c try
+$rm_try
 
 : check for long doubles
 echo " "
@@ -5886,7 +5939,7 @@ else
 	val="$undef"
 	echo "You do not have long double."
 fi
-$rm try.*
+$rm_try
 set d_longdbl
 eval $setvar
 
@@ -5919,10 +5972,10 @@ EOCP
 		echo "That isn't any different from an ordinary double."
 		echo "I'll keep your setting anyway, but you may see some"
 		echo "harmless compilation warnings."
-	fi	
+	fi
 	;;
 esac
-$rm -f try.* try
+$rm_try
 
 : determine the architecture name
 echo " "
@@ -6331,6 +6384,7 @@ case "$perl5" in
 *)	echo "Using $perl5." ;;
 esac
 
+: Set the siteprefix variables
 $cat <<EOM
 
 After $package is installed, you may wish to install various
@@ -6516,7 +6570,7 @@ else
     echo "<malloc.h> NOT found." >&4
     val="$undef"
 fi
-$rm -f try.c try
+$rm_try
 set i_malloc
 eval $setvar
 
@@ -6614,7 +6668,7 @@ EOM
 	voidflags="$ans"
 	;;
 esac
-$rm -f try try.* .out
+$rm_try
 
 : check for length of pointer
 echo " "
@@ -6651,7 +6705,7 @@ EOCP
 	fi
 	;;
 esac
-$rm -f try.c try
+$rm_try
 case "$use64bitall" in
 "$define"|true|[yY]*)
 	case "$ptrsize" in
@@ -6812,6 +6866,7 @@ else
 	d_sitearch="$define"
 fi
 
+: Set the vendorprefix variables
 $cat <<EOM
 
 The installation process will also create a directory for
@@ -6868,6 +6923,7 @@ case "$ans" in
 	;;
 esac
 
+: Set the vendorlib variables
 case "$vendorprefix" in
 '')	d_vendorlib="$undef"
 	vendorlib=''
@@ -6898,6 +6954,7 @@ vendorlib_stem=`echo "$vendorlibexp" | sed "s,/$version$,,"`
 prefixvar=vendorlib
 . ./installprefix
 
+: Set the vendorarch variables
 case "$vendorprefix" in
 '')	d_vendorarch="$undef"
 	vendorarch=''
@@ -6981,6 +7038,7 @@ set prototype
 eval $setvar
 $rm -f prototype*
 
+: Check if ansi2knr is required
 case "$prototype" in
 "$define") ;;
 *)	ansi2knr='ansi2knr'
@@ -7004,6 +7062,89 @@ EOM
 	;;
 esac
 
+: DTrace support
+dflt_dtrace='/usr/sbin/dtrace'
+cat <<EOM
+
+Perl can be built to support DTrace on platforms that support it.
+DTrace is a diagnosis and performance analysis tool from Sun.
+
+If this doesn't make any sense to you, just accept the default '$dflt'.
+EOM
+
+while $test 1 ; do
+	case "$usedtrace" in
+	$define|true|[yY]*)
+		dflt='y'
+		;;
+	?*)
+		dflt='y'
+		dflt_dtrace=$usedtrace
+		;;
+	*)
+		dflt='n'
+		;;
+	esac
+
+	rp='Support DTrace if available?'
+	. ./myread
+	case "$ans" in
+	y|Y)	val="$define" ;;
+	*)      val="$undef" ;;
+	esac
+	set usedtrace
+	eval $setvar
+
+	test "X$usedtrace" != "X$define" && break
+
+	echo " "
+	rp='Where is the dtrace executable?'
+	dflt=$dflt_dtrace
+	. ./getfile
+	val="$ans"
+	set dtrace
+	eval $setvar
+
+	if $test -f $dtrace
+	then
+		if $dtrace -h -s ../perldtrace.d \
+			-o perldtrace.tmp >/dev/null 2>&1 \
+			&& rm -f perldtrace.tmp
+		then
+			echo " "
+			echo "Good: your $dtrace knows about the -h flag."
+		else
+			cat >&2 <<EOM
+
+*** $me:  Fatal Error:  $dtrace doesn't support -h flag
+***
+*** Your installed dtrace doesn't support the -h switch to compile a D
+*** program into a C header. Can't continue.
+
+EOM
+			exit 1
+		fi
+		break;
+	fi
+
+	case "$fastread" in
+	yes)
+		cat >&2 <<EOM
+
+*** $me:  Fatal Error:  $dtrace not found.
+*** Can't continue.
+
+EOM
+		exit 1
+		;;
+	*)
+		echo "*** $dtrace was not found."
+		echo " "
+		;;
+	esac
+done
+
+: See if we want extra modules installed
 echo " "
 case "$extras" in
 '') dflt='n';;
@@ -7145,6 +7286,7 @@ fi
 set installusrbinperl
 eval $setvar
 
+: Check if we are using the GNU C library
 echo " "
 echo "Checking for GNU C Library..." >&4
 cat >try.c <<'EOCP'
@@ -7183,7 +7325,7 @@ else
 	gnulibc_version=''
 	echo "You are not using the GNU C Library"
 fi
-$rm -f try try.* glibc.ver
+$rm_try glibc.ver
 set d_gnulibc
 eval $setvar
 
@@ -7278,9 +7420,9 @@ case "$nm_so_opt" in
 	;;
 esac
 
+: get list of predefined functions in a handy place
 case "$runnm" in
 true)
-: get list of predefined functions in a handy place
 echo " "
 case "$libc" in
 '') libc=unknown
@@ -7568,30 +7710,29 @@ $rm -f libnames libpath
 set dld.h i_dld
 eval $inhdr
 
-
+: Check if we are using C++
 echo " "
 echo "Checking for C++..." >&4
-cat >try.c <<'EOCP'
+$cat >try.c <<'EOCP'
 #include <stdio.h>
 int main(void)
 {
 #ifdef __cplusplus
-    printf("define\n");
+    return 0;
 #else
-    printf("undef\n");
+    return 1;
 #endif
-    return 0;
 }
 EOCP
 set try
-if eval $compile_ok && $run ./try >cplusplus$$; then
-	val=`$cat cplusplus$$`
+if eval $compile_ok && $run ./try; then
+	val="$define"
 	echo "You are using a C++ compiler."
 else
 	val="$undef"
 	echo "You are not using a C++ compiler."
 fi
-$rm -f try try.* cplusplus$$
+$rm_try cplusplus$$
 set d_cplusplus
 eval $setvar
 
@@ -7620,12 +7761,12 @@ yes)
 			echo "extern $extern_C void *$1$tdc; void *(*(p()))$tdc { return &$1; } int main() { if(p()) return(0); else return(1); }"> try.c;
 			$cc -o try $optimize $ccflags $ldflags try.c >/dev/null 2>&1 $libs && tval=true;
 			$test "$mistrustnm" = run -a -x try && { $run ./try$_exe >/dev/null 2>&1 || tval=false; };
-			$rm -f try$_exe try.c core core.* try.core;
+			$rm_try;
 		fi;
 	else
 		echo "extern $extern_C void *$1$tdc; void *(*(p()))$tdc { return &$1; } int main() { if(p()) return(0); else return(1); }"> try.c;
 		$cc -o try $optimize $ccflags $ldflags try.c $libs >/dev/null 2>&1 && tval=true;
-		$rm -f try$_exe try.c;
+		$rm_try;
 	fi;
 	;;
 *)
@@ -7697,7 +7838,7 @@ $undef|n|false)
 	dflt='n'
 	usedl="$undef"
 	;;
-*) 
+*)
 	dflt='n'
 	case "$d_dlopen" in
 	    $define) dflt='y' ;;
@@ -7795,7 +7936,7 @@ EOM
 int main() {
 	char b[4];
 	int i = open("a.out",O_RDONLY);
-	if(i == -1) 
+	if(i == -1)
 		exit(1); /* fail */
 	if(read(i,b,4)==4 && b[0]==127 && b[1]=='E' && b[2]=='L' && b[3]=='F')
 		exit(0); /* succeed (yes, it's ELF) */
@@ -7812,7 +7953,7 @@ EOM
 			echo "I'll use ld to build dynamic libraries."
 			dflt='ld'
 		fi
-		rm -f try.c a.out
+		$rm_try
 		;;
 	*)	dflt="$ld"
 		;;
@@ -7838,7 +7979,7 @@ EOM
 			      case "$gccversion" in
 			      '') dflt="$dflt +vnocompatwarnings" ;;
 			      esac
-			      ;;	
+			      ;;
 			linux|irix*|gnu*)  dflt="-shared $optimize" ;;
 			next)  dflt='none' ;;
 			solaris) dflt='-G' ;;
@@ -7908,6 +8049,7 @@ EOM
     ;;
 esac
 
+: Do we want a shared libperl?
 also=''
 case "$usedl" in
 $undef)
@@ -8060,7 +8202,7 @@ shrpdir=$archlibexp/CORE
 xxx=''
 tmp_shrpenv=''
 if "$useshrplib"; then
-    case "$osname" in 
+    case "$osname" in
 	aix)
 		# We'll set it in Makefile.SH...
 		;;
@@ -8089,7 +8231,7 @@ if "$useshrplib"; then
 	esac
 	case "$xxx" in
 	'') ;;
-	*)	
+	*)
 		# Only add $xxx if it isn't already in ccdlflags.
 		case " $ccdlflags " in
 		*" $xxx "*)	;;
@@ -8097,7 +8239,7 @@ if "$useshrplib"; then
 			cat <<EOM >&4
 
 Adding $xxx to the flags
-passed to $ld so that the perl executable will find the 
+passed to $ld so that the perl executable will find the
 installed shared $libperl.
 
 EOM
@@ -8595,6 +8737,7 @@ case "$phostname" in
 	;;
 esac
 
+: Ask for e-mail
 $cat <<EOM
 
 I need to get your e-mail address in Internet format if possible, i.e.
@@ -8630,6 +8773,7 @@ while test "$cont"; do
 	esac
 done
 
+: Ask e-mail of administrator
 $cat <<EOM
 
 If you or somebody else will be maintaining perl at your site, please
@@ -8868,6 +9012,7 @@ rp='Pathname where add-on public executable scripts should be installed?'
 prefixvar=sitescript
 . ./setprefixvar
 
+: Check if faststdio is requested and available
 case "$usefaststdio" in
 $define|true|[yY]*|'')
 	xversion=`awk '/define[ 	]+PERL_VERSION/ {print $3}' $rsrc/patchlevel.h`
@@ -8891,7 +9036,7 @@ EOM
 rp='Use the "fast stdio" if available?'
 . ./myread
 case "$ans" in
-y|Y)	val="$define" ;;     
+y|Y)	val="$define" ;;
 *)      val="$undef" ;;
 esac
 set usefaststdio
@@ -8967,7 +9112,7 @@ $cat >try.c <<EOCP
 int main()
 {
     printf("%d\n", (int)sizeof($lseektype));
-    return(0); 
+    return(0);
 }
 EOCP
 set try
@@ -8982,19 +9127,20 @@ else
 	. ./myread
 	lseeksize="$ans"
 fi
-$rm -f try.c try
+$rm_try
 
 : see what type file positions are declared as in the library
 rp="What is the type for file position used by fsetpos()?"
 set fpos_t fpostype long stdio.h sys/types.h
 eval $typedef_ask
 
+: Check size for Fpos_t
 echo " "
 case "$fpostype" in
 *_t) zzz="$fpostype"	;;
 *)   zzz="fpos_t"	;;
 esac
-echo "Checking the size of $zzz..." >&4 
+echo "Checking the size of $zzz..." >&4
 cat > try.c <<EOCP
 #include <sys/types.h>
 #include <stdio.h>
@@ -9027,6 +9173,7 @@ else
 	fpossize="$ans"
 fi
 
+: Check for large file support
 # Backward compatibility (uselfs is deprecated).
 case "$uselfs" in
 "$define"|true|[yY]*)
@@ -9036,7 +9183,7 @@ case "$uselfs" in
 EOM
 	uselargefiles="$define"
 	;;
-esac                          
+esac
 
 case "$lseeksize:$fpossize" in
 8:8) cat <<EOM
@@ -9083,7 +9230,7 @@ case "$uselargefiles" in
 int main()
 {
     printf("%d\n", (int)sizeof($lseektype));
-    return(0); 
+    return(0);
 }
 EOCP
 		set try
@@ -9102,7 +9249,7 @@ EOCP
 		*_t) zzz="$fpostype"	;;
 		*)   zzz="fpos_t"	;;
 		esac
-		$echo $n "Rechecking the size of $zzz...$c" >&4 
+		$echo $n "Rechecking the size of $zzz...$c" >&4
 		$cat > try.c <<EOCP
 #include <sys/types.h>
 #include <stdio.h>
@@ -9135,11 +9282,12 @@ EOCP
 			. ./myread
 			fpossize="$ans"
 		fi
-		$rm -f try.c try
+		$rm_try
 	fi
 	;;
 esac
 
+: Set the vendorbin variables
 case "$vendorprefix" in
 '')	d_vendorbin="$undef"
 	vendorbin=''
@@ -9161,6 +9309,7 @@ esac
 prefixvar=vendorbin
 . ./installprefix
 
+: Set the vendorhtml1dir variables
 case "$vendorprefix" in
 '')	vendorhtml1dir=''
 	vendorhtml1direxp=''
@@ -9188,6 +9337,7 @@ $test X"$vendorhtml1dir" = "X" && vendorhtml1dir=' '
 prefixvar=vendorhtml1dir
 . ./installprefix
 
+: Set the vendorhtml3dir variables
 case "$vendorprefix" in
 '')	vendorhtml3dir=''
 	vendorhtml3direxp=''
@@ -9215,6 +9365,7 @@ $test X"$vendorhtml3dir" = "X" && vendorhtml3dir=' '
 prefixvar=vendorhtml3dir
 . ./installprefix
 
+: Set the vendorman1dir variables
 case "$vendorprefix" in
 '')	vendorman1dir=''
 	vendorman1direxp=''
@@ -9239,6 +9390,7 @@ $test X"$vendorman1dir" = "X" && vendorman1dir=' '
 prefixvar=vendorman1dir
 . ./installprefix
 
+: Set the vendorman3dir variables
 case "$vendorprefix" in
 '')	vendorman3dir=''
 	vendorman3direxp=''
@@ -9263,6 +9415,7 @@ $test X"$vendorman3dir" = "X" && vendorman3dir=' '
 prefixvar=vendorman3dir
 . ./installprefix
 
+: Set the vendorscript variables
 case "$vendorprefix" in
 '')	d_vendorscript="$undef"
 	vendorscript=''
@@ -9295,6 +9448,7 @@ prefixvar=vendorscript
 set qgcvt d_qgcvt
 eval $inlibc
 
+: Check print/scan long double stuff
 echo " "
 
 if $test X"$d_longdbl" = X"$define"; then
@@ -9395,17 +9549,17 @@ else
 	sSCNfldbl=$sPRIfldbl	# expect consistency
 fi
 
-$rm -f try try.*
+$rm_try
 
 fi # d_longdbl
 
 case "$sPRIfldbl" in
-'')	d_PRIfldbl="$undef"; d_PRIgldbl="$undef"; d_PRIeldbl="$undef"; 
-	d_PRIFUldbl="$undef"; d_PRIGUldbl="$undef"; d_PRIEUldbl="$undef"; 
+'')	d_PRIfldbl="$undef"; d_PRIgldbl="$undef"; d_PRIeldbl="$undef";
+	d_PRIFUldbl="$undef"; d_PRIGUldbl="$undef"; d_PRIEUldbl="$undef";
 	d_SCNfldbl="$undef";
 	;;
-*)	d_PRIfldbl="$define"; d_PRIgldbl="$define"; d_PRIeldbl="$define"; 
-	d_PRIFUldbl="$define"; d_PRIGUldbl="$define"; d_PRIEUldbl="$define"; 
+*)	d_PRIfldbl="$define"; d_PRIgldbl="$define"; d_PRIeldbl="$define";
+	d_PRIFUldbl="$define"; d_PRIGUldbl="$define"; d_PRIEUldbl="$define";
 	d_SCNfldbl="$define";
 	;;
 esac
@@ -9481,8 +9635,8 @@ char *got;
 }
 
 int main()
-{ 
-	char buf[64]; 
+{
+	char buf[64];
 	buf[63] = '\0';
 
 	/* This must be 1st test on (which?) platform */
@@ -9490,13 +9644,13 @@ int main()
 	Gconvert((DOUBLETYPE)0.1, 8, 0, buf);
 	checkit("0.1", buf);
 
-	Gconvert((DOUBLETYPE)0.01, 8, 0, buf); 
+	Gconvert((DOUBLETYPE)0.01, 8, 0, buf);
 	checkit("0.01", buf);
 
-	Gconvert((DOUBLETYPE)0.001, 8, 0, buf); 
+	Gconvert((DOUBLETYPE)0.001, 8, 0, buf);
 	checkit("0.001", buf);
 
-	Gconvert((DOUBLETYPE)0.0001, 8, 0, buf); 
+	Gconvert((DOUBLETYPE)0.0001, 8, 0, buf);
 	checkit("0.0001", buf);
 
 	Gconvert((DOUBLETYPE)0.00009, 8, 0, buf);
@@ -9505,42 +9659,42 @@ int main()
 	else
 	    checkit("9e-05", buf);
 
-	Gconvert((DOUBLETYPE)1.0, 8, 0, buf); 
+	Gconvert((DOUBLETYPE)1.0, 8, 0, buf);
 	checkit("1", buf);
 
-	Gconvert((DOUBLETYPE)1.1, 8, 0, buf); 
+	Gconvert((DOUBLETYPE)1.1, 8, 0, buf);
 	checkit("1.1", buf);
 
-	Gconvert((DOUBLETYPE)1.01, 8, 0, buf); 
+	Gconvert((DOUBLETYPE)1.01, 8, 0, buf);
 	checkit("1.01", buf);
 
-	Gconvert((DOUBLETYPE)1.001, 8, 0, buf); 
+	Gconvert((DOUBLETYPE)1.001, 8, 0, buf);
 	checkit("1.001", buf);
 
-	Gconvert((DOUBLETYPE)1.0001, 8, 0, buf); 
+	Gconvert((DOUBLETYPE)1.0001, 8, 0, buf);
 	checkit("1.0001", buf);
 
-	Gconvert((DOUBLETYPE)1.00001, 8, 0, buf); 
+	Gconvert((DOUBLETYPE)1.00001, 8, 0, buf);
 	checkit("1.00001", buf);
 
-	Gconvert((DOUBLETYPE)1.000001, 8, 0, buf); 
+	Gconvert((DOUBLETYPE)1.000001, 8, 0, buf);
 	checkit("1.000001", buf);
 
-	Gconvert((DOUBLETYPE)0.0, 8, 0, buf); 
+	Gconvert((DOUBLETYPE)0.0, 8, 0, buf);
 	checkit("0", buf);
 
-	Gconvert((DOUBLETYPE)-1.0, 8, 0, buf); 
+	Gconvert((DOUBLETYPE)-1.0, 8, 0, buf);
 	checkit("-1", buf);
 
 	/* Some Linux gcvt's give 1.e+5 here. */
-	Gconvert((DOUBLETYPE)100000.0, 8, 0, buf); 
+	Gconvert((DOUBLETYPE)100000.0, 8, 0, buf);
 	checkit("100000", buf);
-	
+
 	/* Some Linux gcvt's give -1.e+5 here. */
-	Gconvert((DOUBLETYPE)-100000.0, 8, 0, buf); 
+	Gconvert((DOUBLETYPE)-100000.0, 8, 0, buf);
 	checkit("-100000", buf);
 
-	Gconvert((DOUBLETYPE)123.456, 8, 0, buf); 
+	Gconvert((DOUBLETYPE)123.456, 8, 0, buf);
 	checkit("123.456", buf);
 
 	/* Testing of 1e+129 in bigintpm.t must not get extra '.' here. */
@@ -9565,14 +9719,14 @@ for xxx_convert in $gconvert_preference; do
     case $xxx_convert in
     gcvt|gconvert|sprintf) xxx_list="$xxx_list $xxx_convert" ;;
     *) echo "Discarding unrecognized gconvert_preference $xxx_convert" >&4 ;;
-    esac 
+    esac
 done
 : then add any others
 for xxx_convert in gconvert gcvt sprintf; do
     case "$xxx_list" in
     *$xxx_convert*) ;;
     *) xxx_list="$xxx_list $xxx_convert" ;;
-    esac 
+    esac
 done
 
 case "$d_longdbl$uselongdouble" in
@@ -9607,7 +9761,7 @@ esac
 
 for xxx_convert in $xxx_list; do
 	echo "Trying $xxx_convert..."
-	$rm -f try try$_o
+	$rm -f try try$_o core
 	set try -DTRY_$xxx_convert
 	if eval $compile; then
 		echo "$xxx_convert() found." >&4
@@ -9640,10 +9794,11 @@ qgcvt) d_Gconvert='qgcvt((x),(n),(b))' ;;
       d_Gconvert='sprintf((b),"%.*g",(n),(double)(x))' ;;
    *) d_Gconvert='sprintf((b),"%.*g",(n),(x))' ;;
    esac
-   ;;  
+   ;;
 esac
 
 fi
+$rm_try
 
 : see if _fwalk exists
 set fwalk d__fwalk
@@ -9725,7 +9880,7 @@ optimize="$optimize"
 ccflags="$ccflags"
 prototype="$prototype"
 define="$define"
-rm=$rm
+rm_try="$rm_try"
 usethreads=$usethreads
 i_pthread=$i_pthread
 pthread_h_first=$pthread_h_first
@@ -9733,7 +9888,7 @@ EOSH
 
 $cat >> protochk <<'EOSH'
 
-$rm -f try.c
+$rm_try
 foo="$1"
 shift
 while test $# -ge 2; do
@@ -9763,12 +9918,13 @@ echo "$foo" >> try.c
 echo 'int no_real_function_has_this_name _((void)) { return 0; }' >> try.c
 $cc $optimize $ccflags -c try.c > /dev/null 2>&1
 status=$?
-$rm -f try.[co]
+$rm_try
 exit $status
 EOSH
 chmod +x protochk
 $eunicefix protochk
 
+: Define hasproto macro for Configure internal use
 hasproto='varname=$1; func=$2; shift; shift;
 while $test $# -ge 2; do
 	case "$1" in
@@ -9786,7 +9942,7 @@ else
 fi;
 set $varname;
 eval $setvar;
-$rm -f try.c tryout.c'
+$rm_try tryout.c'
 
 : see if sys/types.h has to be included
 set sys/types.h i_systypes
@@ -9796,6 +9952,7 @@ eval $inhdr
 set sys/select.h i_sysselct
 eval $inhdr
 
+: Define hasfield macro for Configure internal use
 hasfield='varname=$1; struct=$2; field=$3; shift; shift; shift;
 while $test $# -ge 2; do
 	case "$1" in
@@ -9812,7 +9969,7 @@ else
 fi;
 set $varname;
 eval $setvar;
-$rm -f try try.c try.o'
+$rm_try'
 
 : see if we should include time.h, sys/time.h, or both
 echo " "
@@ -9899,11 +10056,11 @@ EOCP
 		echo "We'll include <sys/time.h>." >&4;;
 	*) i_systime="$undef";;
 	esac
-	$rm -f try.c try
+	$rm_try
 fi
 : see if struct tm knows about tm_zone
 case "$i_systime$i_time" in
-*$define*) 
+*$define*)
         echo " "
         echo "Checking to see if your struct tm has tm_zone field..." >&4
         set d_tm_tm_zone tm tm_zone $i_systime sys/time.h $i_time time.h
@@ -9920,7 +10077,7 @@ case "$d_tm_tm_zone" in
 esac
 : see if struct tm knows about tm_gmtoff
 case "$i_systime$i_time" in
-*$define*) 
+*$define*)
         echo " "
         echo "Checking to see if your struct tm has tm_gmtoff field..." >&4
         set d_tm_tm_gmtoff tm tm_gmtoff $i_systime sys/time.h $i_time time.h
@@ -10309,7 +10466,7 @@ EOP
 esac
 set d_bsdgetpgrp
 eval $setvar
-$rm -f try try.*
+$rm_try
 
 : see if setpgrp exists
 set setpgrp d_setpgrp
@@ -10375,7 +10532,8 @@ EOP
 esac
 set d_bsdsetpgrp
 eval $setvar
-$rm -f try try.*
+$rm_try
+
 : Look for GCC-style __builtin_choose_expr
 case "$d_builtin_choose_expr" in
 '')
@@ -10412,7 +10570,7 @@ esac
 
 set d_builtin_choose_expr
 eval $setvar
-$rm -f try.* try core core.try.*
+$rm_try
 
 : Look for GCC-style __builtin_expect
 case "$d_builtin_expect" in
@@ -10439,7 +10597,7 @@ esac
 
 set d_builtin_expect
 eval $setvar
-$rm -f try.* try core core.try.*
+$rm_try
 
 : see if bzero exists
 set bzero d_bzero
@@ -10527,7 +10685,7 @@ echo "I could not find the definition for va_dcl... You have problems..." >&4
 	val="$undef"; set i_stdarg; eval $setvar
 	val="$undef"; set i_varargs; eval $setvar
 	;;
-*) 
+*)
 	set i_varhdr
 	eval $setvar
 	case "$i_varhdr" in
@@ -10577,7 +10735,7 @@ EOCP
 	echo "I couldn't compile and run the test program, so I assume that you don't have functional C99 variadic macros." >&4
 	d_c99_variadic_macros="$undef"
     fi
-    $rm -f try.* try core core.try.*
+    $rm_try
     ;;
     *)
     echo "You don't have <stdarg.h> and <stdlib.h>, so not checking for C99 variadic macros." >&4
@@ -10654,7 +10812,7 @@ int main()
 	char str[16];
 	signal(SIGFPE, blech);
 
-	/* Don't let compiler optimize the test away.  Store the number 
+	/* Don't let compiler optimize the test away.  Store the number
 	   in a writable string for gcc to pass to sscanf under HP/UX.
 	*/
 	sprintf(str, "2147483647");
@@ -10690,7 +10848,7 @@ case "$yyy" in
 esac
 set d_casti32
 eval $setvar
-$rm -f try try.*
+$rm_try
 
 : check for ability to cast negative floats to unsigned
 echo " "
@@ -10716,12 +10874,12 @@ int main()
 	unsigned short ashort;
 	int result = 0;
 	char str[16];
-	
+
 	/* Frustrate gcc-2.7.2's optimizer which failed this test with
 	   a direct f = -123. assignment.  gcc-2.8.0 reportedly
 	   optimized the whole file away
 	*/
-	/* Store the number in a writable string for gcc to pass to 
+	/* Store the number in a writable string for gcc to pass to
 	   sscanf under HP/UX.
 	*/
 	sprintf(str, "-123");
@@ -10790,7 +10948,7 @@ case "$castflags" in
 esac
 set d_castneg
 eval $setvar
-$rm -f try try.*
+$rm_try
 
 : see if vprintf exists
 echo " "
@@ -10798,38 +10956,75 @@ if set vprintf val -f d_vprintf; eval $csym; $val; then
 	echo 'vprintf() found.' >&4
 	val="$define"
 	$cat >try.c <<EOF
-#include <varargs.h>
+#$i_stdarg I_STDARG  /* Only one of these can be defined by i_varhrd */
+#$i_varargs I_VARARGS
+
 #$i_stdlib I_STDLIB
+#$i_unistd I_UNISTD
+
+#ifdef I_STDARG
+#  include <stdarg.h>
+#else /* I_VARARGS */
+#  include <varargs.h>
+#endif
+
+#ifdef I_UNISTD
+#  include <unistd.h>
+#endif
+
 #ifdef I_STDLIB
-#include <stdlib.h>
+#  include <stdlib.h>
 #endif
 
-int main() { xxx("foo"); }
+#include <stdio.h> /* vsprintf prototype */
+
+#ifdef I_STDARG
+void xxx(int n, ...)
+{
+    va_list args;
+    char buf[10];
+    va_start(args, n);
+    exit((unsigned long)vsprintf(buf,"%s",args) > 10L);
+}
+int main() { xxx(1, "foo"); }
+
+#else /* I_VARARGS */
 
 xxx(va_alist)
 va_dcl
 {
-	va_list args;
-	char buf[10];
-
-	va_start(args);
-	exit((unsigned long)vsprintf(buf,"%s",args) > 10L);
+    va_list args;
+    char buf[10];
+    va_start(args);
+    exit((unsigned long)vsprintf(buf,"%s",args) > 10L);
 }
+int main() { xxx("foo"); }
+
+#endif
+
 EOF
 	set try
-	if eval $compile && $run ./try; then
-		echo "Your vsprintf() returns (int)." >&4
-		val2="$undef"
+	if eval $compile_ok; then
+		if $run ./try; then
+			echo "Your vsprintf() returns (int)." >&4
+			val2="$undef"
+		else
+			echo "Your vsprintf() returns (char*)." >&4
+			val2="$define"
+		fi
 	else
-		echo "Your vsprintf() returns (char*)." >&4
-		val2="$define"
+		echo 'I am unable to compile the vsprintf() test program.' >&4
+		# We shouldn't get here.  If we do, assume the standard signature,
+		# not the old BSD one.
+		echo 'Guessing that vsprintf() returns (int).' >&4
+		val2="$undef"
 	fi
 else
 	echo 'vprintf() NOT found.' >&4
-		val="$undef"
-		val2="$undef"
+	val="$undef"
+	val2="$undef"
 fi
-$rm -f try try.*
+$rm_try
 set d_vprintf
 eval $setvar
 val=$val2
@@ -10856,6 +11051,7 @@ eval $inlibc
 set clearenv d_clearenv
 eval $inlibc
 
+: Define hasstruct macro for Configure internal use
 hasstruct='varname=$1; struct=$2; shift; shift;
 while $test $# -ge 2; do
 	case "$1" in
@@ -10872,11 +11068,11 @@ else
 fi;
 set $varname;
 eval $setvar;
-$rm -f try try.c try.o'
+$rm_try'
 
+: see whether socket exists
 socketlib=''
 sockethdr=''
-: see whether socket exists
 echo " "
 $echo $n "Hmm... $c" >&4
 if set socket val -f d_socket; eval $csym; $val; then
@@ -10913,7 +11109,7 @@ else
 							sockethdr="-I/usr/netinclude"
 							;;
 						esac
-						echo "Found Berkeley sockets interface in lib$net." >&4 
+						echo "Found Berkeley sockets interface in lib$net." >&4
 						if $contains setsockopt libc.list >/dev/null 2>&1; then
 							d_oldsock="$undef"
 						else
@@ -10954,14 +11150,14 @@ EOF
 		val="$define"
 	fi
 	set d_${enum}; eval $setvar
-	$rm -f try.c try
+	$rm_try
 done
 
 : see if this is a sys/uio.h system
 set sys/uio.h i_sysuio
 eval $inhdr
 
-
+: Check for cmsghdr support
 echo " "
 echo "Checking to see if your system supports struct cmsghdr..." >&4
 set d_cmsghdr_s cmsghdr $i_systypes sys/types.h $d_socket sys/socket.h $i_sysuio sys/uio.h
@@ -11310,7 +11506,7 @@ case "$guess1" in
 'struct dirent') guess2='struct direct' ;;
 *) guess2='struct dirent' ;;
 esac
-		
+
 if $contains "$guess1" try.c >/dev/null 2>&1; then
 	direntrytype="$guess1"
 	echo "Your directory entries are $direntrytype." >&4
@@ -11324,8 +11520,7 @@ else
 	. ./myread
 	direntrytype="$ans"
 fi
-$rm -f try try.c
-
+$rm_try
 
 : see if the directory entry stores field length
 echo " "
@@ -11339,7 +11534,7 @@ else
 fi
 set d_dirnamlen
 eval $setvar
-$rm -f try try.c
+$rm_try
 
 : Look for DIR.dd_fd
 case "$i_dirent" in
@@ -11375,7 +11570,7 @@ EOCP
 esac
 set d_dir_dd_fd
 eval $setvar
-$rm -f try try.*
+$rm_try
 
 : see if this is an sysdir system
 set sys/dir.h i_sysdir
@@ -11450,6 +11645,7 @@ runnm="$xxx_runnm"
 set dlfcn.h i_dlfcn
 eval $inhdr
 
+: Check what extension to use for shared libs
 case "$usedl" in
 $define|y|true)
 	$cat << EOM
@@ -11534,9 +11730,9 @@ int main()
 }
 EOM
 	: Call the object file tmp-dyna.o in case dlext=o.
-	if $cc $ccflags $cccdlflags -c dyna.c > /dev/null 2>&1 && 
-		mv dyna${_o} tmp-dyna${_o} > /dev/null 2>&1 && 
-		$ld -o dyna.$dlext $ldflags $lddlflags tmp-dyna${_o} > /dev/null 2>&1 && 
+	if $cc $ccflags $cccdlflags -c dyna.c > /dev/null 2>&1 &&
+		mv dyna${_o} tmp-dyna${_o} > /dev/null 2>&1 &&
+		$ld -o dyna.$dlext $ldflags $lddlflags tmp-dyna${_o} > /dev/null 2>&1 &&
 		$cc -o fred $ccflags $ldflags $cccdlflags $ccdlflags fred.c $libs > /dev/null 2>&1 && $to dyna.$dlext; then
 		xxx=`$run ./fred`
 		case $xxx in
@@ -11554,7 +11750,7 @@ EOM
 	fi
 	;;
 esac
-		
+
 $rm -f fred fred.* dyna.$dlext dyna.* tmp-dyna.*
 
 set d_dlsymun
@@ -12077,7 +12273,7 @@ else
 fi
 set d_open3
 eval $setvar
-$rm -f try try.*
+$rm_try
 
 : see which of string.h or strings.h is needed
 echo " "
@@ -12154,6 +12350,14 @@ esac
 set i_fcntl
 eval $setvar
 
+: see if fork exists
+set fork d_fork
+eval $inlibc
+
+: see if pipe exists
+set pipe d_pipe
+eval $inlibc
+
 : check for non-blocking I/O stuff
 case "$h_sysfile" in
 true) echo "#include <sys/file.h>" > head.c;;
@@ -12208,18 +12412,20 @@ EOCP
 	;;
 *) echo "Using $hint value $o_nonblock.";;
 esac
-$rm -f try try.* .out core
+$rm_try
 
 echo " "
 echo "Let's see what value errno gets from read() on a $o_nonblock file..." >&4
 case "$eagain" in
 '')
+	case "$d_fork:$d_pipe" in
+	define:define)
 	$cat head.c > try.c
 	$cat >>try.c <<EOCP
 #include <errno.h>
 #include <sys/types.h>
 #include <signal.h>
-#include <stdio.h> 
+#include <stdio.h>
 #$i_stdlib I_STDLIB
 #ifdef I_STDLIB
 #include <stdlib.h>
@@ -12346,6 +12552,12 @@ EOCP
 		echo "I can't compile the test program--assuming errno EAGAIN will do."
 		eagain=EAGAIN
 	fi
+	;;
+	*)	echo "Can't figure out how to test this--assuming errno EAGAIN will do."
+		eagain=EAGAIN
+		val="$define"
+		;;
+	esac
 	set d_eofnblk
 	eval $setvar
 	;;
@@ -12362,7 +12574,7 @@ EOCP
 	esac
 	;;
 esac
-$rm -f try try.* .out core head.c mtry
+$rm_try head.c mtry
 
 : see if _ptr and _cnt from stdio act std
 echo " "
@@ -12461,7 +12673,7 @@ if eval $compile && $to try.c; then
 else
 	echo "Your stdio doesn't appear very std."
 fi
-$rm -f try.c try
+$rm_try
 
 # glibc 2.2.90 and above apparently change stdio streams so Perl's
 # direct buffer manipulation no longer works.  The Configure tests
@@ -12561,7 +12773,7 @@ int main() {
 	if (cnt == FILE_cnt(fp)) {
 		puts("Pass_unchanged");
 		exit (0);
-	}	
+	}
 	if (FILE_cnt(fp) == (cnt - 42)) {
 		puts("Pass_changed");
 		exit (0);
@@ -12588,7 +12800,7 @@ EOP
 	else
 		echo "It seems we can't set ptr in your stdio.  Nevermind." >&4
 	fi
-	$rm -f try.c try
+	$rm_try
 	;;
 esac
 
@@ -12626,7 +12838,7 @@ EOP
 	else
 		echo "However, it seems to be lacking the _base field."
 	fi
-	$rm -f try.c try
+	$rm_try
 	;;
 esac
 set d_stdiobase
@@ -12665,8 +12877,8 @@ eval $inlibc
 set fcntl d_fcntl
 eval $inlibc
 
-echo " "
 : See if fcntl-based locking works.
+echo " "
 $cat >try.c <<EOCP
 #$i_stdlib I_STDLIB
 #ifdef I_STDLIB
@@ -12729,8 +12941,7 @@ EOM
 esac
 set d_fcntl_can_lock
 eval $setvar
-$rm -f try*
-
+$rm_try
 
 : check for fd_set items
 $cat <<EOM
@@ -12808,7 +13019,7 @@ EOM
 		d_fd_macros="$undef"
 	fi
 fi
-$rm -f try try.*
+$rm_try
 
 : see if fgetpos exists
 set fgetpos d_fgetpos
@@ -12831,10 +13042,6 @@ echo " "
 set d_flockproto flock $i_sysfile sys/file.h
 eval $hasproto
 
-: see if fork exists
-set fork d_fork
-eval $inlibc
-
 : see if fp_class exists
 set fp_class d_fp_class
 eval $inlibc
@@ -12859,7 +13066,6 @@ eval $inlibc
 set fpclassl d_fpclassl
 eval $inlibc
 
-
 : check for fpos64_t
 echo " "
 echo "Checking to see if you have fpos64_t..." >&4
@@ -12878,7 +13084,7 @@ else
 	8) echo "(Your fpos_t is 64 bits, so you could use that.)" ;;
 	esac
 fi
-$rm -f try.* try
+$rm_try
 set d_fpos64_t
 eval $setvar
 
@@ -12894,7 +13100,7 @@ eval $inhdr
 set sys/mount.h i_sysmount
 eval $inhdr
 
-
+: Check for fs_data_s
 echo " "
 echo "Checking to see if your system supports struct fs_data..." >&4
 set d_fs_data_s fs_data $i_systypes sys/types.h $i_sysparam sys/param.h $i_sysmount sys/mount.h
@@ -12915,12 +13121,10 @@ esac
 set fsetpos d_fsetpos
 eval $inlibc
 
-
 : see if fstatfs exists
 set fstatfs d_fstatfs
 eval $inlibc
 
-
 : see if statvfs exists
 set statvfs d_statvfs
 eval $inlibc
@@ -12941,10 +13145,10 @@ case "$longsize" in
 8) echo "(Your long is 64 bits, so you could use ftell.)" ;;
 esac
 
-d_futimes="$undef"
 : check for a working futimes
+d_futimes="$undef"
 echo " "
-echo "Checking for a working futimes()" >&4
+echo "Checking if you have a working futimes()" >&4
 $cat >try.c <<EOCP
 #include <stdio.h>
 #include <sys/time.h>
@@ -12965,16 +13169,16 @@ if eval $compile; then
     `$run ./try`
     rc=$?
     case "$rc" in
-	0)  echo "Yes, it does" >&4
+	0)  echo "Yes, you have" >&4
 	    d_futimes="$define"
 	    ;;
-	*)  echo "No, it has futimes, but it isn't working ($rc) (probably harmless)" >&4
+	*)  echo "No, you have futimes, but it isn't working ($rc) (probably harmless)" >&4
 	    ;;
     esac
 else
     echo "No, it does not (probably harmless)" >&4
 fi
-$rm -f try.* try core core.try.*
+$rm_try
 
 : see if getcwd exists
 set getcwd d_getcwd
@@ -12984,7 +13188,6 @@ eval $inlibc
 set getespwnam d_getespwnam
 eval $inlibc
 
-
 : see if getfsstat exists
 set getfsstat d_getfsstat
 eval $inlibc
@@ -13219,7 +13422,7 @@ case "$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
@@ -13730,6 +13933,7 @@ eval $hasproto
 set getpagesize d_getpagsz
 eval $inlibc
 
+: Optional checks for getprotobyname and getprotobynumber
 
 : see if getprotobyname exists
 set getprotobyname d_getpbyname
@@ -14090,6 +14294,7 @@ case "$d_getpwuid_r" in
 	;;
 esac
 
+: Optional checks for getsbyname and getsbyport
 
 : see if getservbyname exists
 set getservbyname d_getsbyname
@@ -14579,10 +14784,10 @@ eval $setvar
 set math.h i_math
 eval $inhdr
 
+: check to see if math.h defines _LIB_VERSION
 d_libm_lib_version="$undef"
 case $i_math in
     $define)
-	: check to see if math.h defines _LIB_VERSION
 	echo " "
 	echo "Checking to see if your libm supports _LIB_VERSION..." >&4
 	$cat >try.c <<EOCP
@@ -14600,9 +14805,9 @@ EOCP
 	    echo "Yes, it does ($foo)" >&4
 	    d_libm_lib_version="$define"
 	else
-	    echo "No, it does not (probably harmless)\n" >&4
+	    echo "No, it does not (probably harmless)" >&4
 	    fi
-	$rm -f try.* try core core.try.*
+	$rm_try
 	;;
 
     esac
@@ -14707,7 +14912,7 @@ EOCP
      d_localtime_r_needs_tzset=undef;
      ;;
 esac
-$rm -f try try.* core
+$rm_try
 
 : see if localeconv exists
 set localeconv d_locconv
@@ -14846,12 +15051,12 @@ $define$define)
 Checking to see whether your modfl() is okay for large values...
 EOM
 $cat >try.c <<EOCP
-#include <math.h> 
+#include <math.h>
 #include <stdio.h>
 EOCP
 if $test "X$d_modflproto" != "X$define"; then
 	$cat >>try.c <<EOCP
-/* Sigh. many current glibcs provide the function, but do not prototype it.  */ 
+/* Sigh. many current glibcs provide the function, but do not prototype it. */
 long double modfl (long double, long double *);
 EOCP
 fi
@@ -14859,7 +15064,7 @@ $cat >>try.c <<EOCP
 int main() {
     long double nv = 4294967303.15;
     long double v, w;
-    v = modfl(nv, &w);         
+    v = modfl(nv, &w);
 #ifdef __GLIBC__
     printf("glibc");
 #endif
@@ -14890,7 +15095,7 @@ EOCP
 			d_modfl="$undef"
 			;;
 		esac
-		$rm -f try.* try core core.try.*
+		$rm_try
 	else
 		echo "I cannot figure out whether your modfl() is okay, assuming it isn't."
 		d_modfl="$undef"
@@ -14992,7 +15197,7 @@ fi
 set d_msg
 eval $setvar
 
-
+: Check for msghdr_s
 echo " "
 echo "Checking to see if your system supports struct msghdr..." >&4
 set d_msghdr_s msghdr $i_systypes sys/types.h $d_socket sys/socket.h $i_sysuio sys/uio.h
@@ -15023,40 +15228,6 @@ eval $inhdr
 set nl_langinfo d_nl_langinfo
 eval $inlibc
 
-: check for length of character
-echo " "
-case "$charsize" in
-'')
-	echo "Checking to see how big your characters are (hey, you never know)..." >&4
-	$cat >try.c <<EOCP
-#include <stdio.h>
-#$i_stdlib I_STDLIB
-#ifdef I_STDLIB
-#include <stdlib.h>
-#endif
-int main()
-{
-    printf("%d\n", (int)sizeof(char));
-    exit(0);
-}
-EOCP
-	set try
-	if eval $compile_ok; then
-		dflt=`$run ./try`
-	else
-		dflt='1'
-		echo "(I can't seem to compile the test program.  Guessing...)"
-	fi
-	;;
-*)
-	dflt="$charsize"
-	;;
-esac
-rp="What is the size of a character (in bytes)?"
-. ./myread
-charsize="$ans"
-$rm -f try.c try
-
 : check for volatile keyword
 echo " "
 echo 'Checking to see if your C compiler knows about "volatile"...' >&4
@@ -15086,9 +15257,9 @@ else
 fi
 set d_volatile
 eval $setvar
-$rm -f try try.*
-
+$rm_try
 
+: Check basic sizes
 echo " "
 $echo "Choosing the C types to be used for Perl's internal types..." >&4
 
@@ -15145,38 +15316,10 @@ int main() {
 }
 EOCP
 
-case "$i8type" in
-'')	case "$charsize" in
-	1)	i8type=char
-		u8type="unsigned char"
-		i8size=$charsize
-		u8size=$charsize
-		;;
-	esac
-	;;
-esac
-case "$i8type" in
-'')	set try -DINT8
-	if eval $compile; then
-		case "`$run ./try`" in
-		int8_t)	i8type=int8_t
-			u8type=uint8_t
-			i8size=1
-			u8size=1
-			;;
-		esac
-	fi
-	;;
-esac
-case "$i8type" in
-'')	if $test $charsize -ge 1; then
-		i8type=char
-		u8type="unsigned char"
-		i8size=$charsize
-		u8size=$charsize
-	fi
-	;;
-esac
+i8type="signed char"
+u8type="unsigned char"
+i8size=1
+u8size=1
 
 case "$i16type" in
 '')	case "$shortsize" in
@@ -15318,7 +15461,7 @@ if eval $compile; then
 	nv_preserves_uv_bits="`$run ./try`"
 fi
 case "$nv_preserves_uv_bits" in
-\-[1-9]*)	
+\-[1-9]*)
 	nv_preserves_uv_bits=`expr 0 - $nv_preserves_uv_bits`
 	$echo "Your NVs can preserve all $nv_preserves_uv_bits bits of your UVs."  2>&1
 	d_nv_preserves_uv="$define"
@@ -15328,8 +15471,7 @@ case "$nv_preserves_uv_bits" in
 *)	$echo "Can't figure out how many bits your NVs preserve." 2>&1
 	nv_preserves_uv_bits="0" ;;
 esac
-
-$rm -f try.* try
+$rm_try
 
 $echo "Checking whether NV 0.0 is all bits zero in memory..." >&4
 : volatile so that the compiler has to store it out to memory.
@@ -15408,7 +15550,7 @@ int main(int argc, char **argv) {
 	printf("(gives %g)\n", d);
 	return 1;
     }
-    
+
 #ifdef SIGFPE
     if (bletched) {
 	printf("No - something bleched\n");
@@ -15450,9 +15592,7 @@ EOM
 	    ;;
     esac
 fi
-
-$rm -f try.* try
-
+$rm_try
 
 : check for off64_t
 echo " "
@@ -15473,14 +15613,14 @@ else
 	8) echo "(Your off_t is 64 bits, so you could use that.)" ;;
 	esac
 fi
-$rm -f try.* try
+$rm_try
 set d_off64_t
 eval $setvar
 
 : how to create joinable pthreads
 if test "X$usethreads" = "X$define" -a "X$i_pthread" = "X$define"; then
 	echo " "
-	echo "Checking what constant to use for creating joinable pthreads..." >&4 
+	echo "Checking what constant to use for creating joinable pthreads..." >&4
 	$cat >try.c <<'EOCP'
 #include <pthread.h>
 int main() {
@@ -15506,7 +15646,7 @@ EOCP
 			val=PTHREAD_CREATE_UNDETACHED
 			set old_pthread_create_joinable
 			eval $setvar
-		else		
+		else
 			set try -DJOINABLE=__UNDETACHED
 			if eval $compile; then
 				echo "You seem to use __UNDETACHED." >&4
@@ -15527,7 +15667,7 @@ EOCP
 			fi
 		fi
 	fi
-	$rm -f try try.*
+	$rm_try
 else
     d_old_pthread_create_joinable="$undef"
     old_pthread_create_joinable=""
@@ -15537,10 +15677,6 @@ fi
 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
@@ -15549,6 +15685,7 @@ eval $inlibc
 set readlink d_readlink
 eval $inlibc
 
+: Check if exe is symlink to abs path of executing program
 echo " "
 procselfexe=''
 val="$undef"
@@ -15656,7 +15793,6 @@ eval $setvar
 set pthread_attr_setscope d_pthread_attr_setscope
 eval $inlibc
 
-
 : see whether the various POSIXish _yields exist
 $cat >try.c <<EOP
 #include <pthread.h>
@@ -15721,12 +15857,10 @@ $define)
 esac
 set d_pthread_yield
 eval $setvar
-
 case "$sched_yield" in
 '') sched_yield=undef ;;
 esac
-
-$rm -f try try.*
+$rm_try
 
 : see if random_r exists
 set random_r d_random_r
@@ -15987,7 +16121,7 @@ EOCP
 		fi
 		;;
 	esac
-	$rm -f try.* try core
+	$rm_try
 	;;
 esac
 set d_safebcpy
@@ -16063,7 +16197,7 @@ EOCP
 		fi
 		;;
 	esac
-	$rm -f try.* try core
+	$rm_try
 	;;
 esac
 set d_safemcpy
@@ -16119,7 +16253,7 @@ EOCP
 	fi
 	;;
 esac
-$rm -f try.* try core
+$rm_try
 set d_sanemcmp
 eval $setvar
 
@@ -16194,7 +16328,7 @@ else
     echo "You do not have union semun in <sys/sem.h>." >&4
     val="$undef"
 fi
-$rm -f try try.c
+$rm_try
 set d_union_semun
 eval $setvar
 
@@ -16202,7 +16336,7 @@ eval $setvar
 case "$d_sem" in
 $define)
     echo " "
-    $cat > try.h <<END
+    $cat > tryh.h <<END
 #ifndef S_IRUSR
 #   ifdef S_IREAD
 #	define S_IRUSR S_IREAD
@@ -16237,7 +16371,7 @@ END
 #include <sys/stat.h>
 #include <stdio.h>
 #include <errno.h>
-#include "try.h"
+#include "tryh.h"
 #ifndef errno
 extern int errno;
 #endif
@@ -16283,7 +16417,7 @@ END
           semun) val="$define" ;;
           esac
       fi
-      $rm -f try try.c
+      $rm_try
       set d_semctl_semun
       eval $setvar
       ;;
@@ -16307,7 +16441,7 @@ END
 #include <sys/ipc.h>
 #include <sys/sem.h>
 #include <sys/stat.h>
-#include "try.h"
+#include "tryh.h"
 #include <stdio.h>
 #include <errno.h>
 #ifndef errno
@@ -16345,7 +16479,7 @@ END
           semid_ds) val="$define" ;;
           esac
       fi
-      $rm -f try try.c
+      $rm_try
       set d_semctl_semid_ds
       eval $setvar
       ;;
@@ -16357,7 +16491,6 @@ END
     *)  echo "You cannot use struct semid_ds* for semctl IPC_STAT." >&4
         ;;
     esac
-    $rm -f try.h
     ;;
 *)  val="$undef"
 
@@ -16371,6 +16504,7 @@ END
     eval $setvar
     ;;
 esac
+$rm_try tryh.h
 
 : see if sendmsg exists
 set sendmsg d_sendmsg
@@ -16783,7 +16917,6 @@ eval $inlibc
 set sfio.h i_sfio
 eval $inhdr
 
-
 : see if sfio library is available
 case "$i_sfio" in
 $define)
@@ -16933,8 +17066,8 @@ fi
 set d_shm
 eval $setvar
 
-echo " "
 : see if we have sigaction
+echo " "
 if set sigaction val -f d_sigaction; eval $csym; $val; then
 	echo 'sigaction() found.' >&4
 	$cat > try.c <<EOP
@@ -16966,7 +17099,7 @@ else
 	val="$undef"
 fi
 set d_sigaction; eval $setvar
-$rm -f try try$_o try.c
+$rm_try
 
 : see if this is a sunmath.h system
 set sunmath.h i_sunmath
@@ -17011,7 +17144,7 @@ else
 fi
 set d_signbit
 eval $setvar
-$rm -f try.* try
+$rm_try
 
 : see if sigprocmask exists
 set sigprocmask d_sigprocmask
@@ -17064,7 +17197,7 @@ EOM
 esac
 set d_sigsetjmp
 eval $setvar
-$rm -f try.c try
+$rm_try
 
 : see if snprintf exists
 set snprintf d_snprintf
@@ -17127,7 +17260,7 @@ EOM
 	d_snprintf="$undef"
 	d_vsnprintf="$undef"
     fi
-    $rm -f try.* try core core.try.*
+    $rm_try
     ;;
 esac
 
@@ -17203,8 +17336,7 @@ EOM
         ;;
     esac
 fi
-
-$rm -f try.* try
+$rm_try
 
 : see if srand48_r exists
 set srand48_r d_srand48_r
@@ -17302,24 +17434,21 @@ eval $hasproto
 set sys/stat.h i_sysstat
 eval $inhdr
 
-
 : see if stat knows about block sizes
 echo " "
 echo "Checking to see if your struct stat has st_blocks field..." >&4
 set d_statblks stat st_blocks $i_sysstat sys/stat.h
 eval $hasfield
 
-
 : see if this is a sys/vfs.h system
 set sys/vfs.h i_sysvfs
 eval $inhdr
 
-
 : see if this is a sys/statfs.h system
 set sys/statfs.h i_sysstatfs
 eval $inhdr
 
-
+: Check for statfs_s
 echo " "
 echo "Checking to see if your system supports struct statfs..." >&4
 set d_statfs_s statfs $i_systypes sys/types.h $i_sysparam sys/param.h $i_sysmount sys/mount.h $i_sysvfs sys/vfs.h $i_sysstatfs sys/statfs.h
@@ -17330,10 +17459,9 @@ case "$d_statfs_s" in
 esac
 
 
-
 : see if struct statfs knows about f_flags
 case "$d_statfs_s" in
-define)	
+define)
 	echo " "
 	echo "Checking to see if your struct statfs has f_flags field..." >&4
 	set d_statfs_f_flags statfs f_flags $i_systypes sys/types.h $i_sysparam sys/param.h $i_sysmount sys/mount.h $i_sysvfs sys/vfs.h $i_sysstatfs sys/statfs.h
@@ -17349,6 +17477,7 @@ case "$d_statfs_f_flags" in
 *)              echo "No, it doesn't." ;;
 esac
 
+: Check stream access
 $cat >&4 <<EOM
 Checking how to access stdio streams by file descriptor number...
 EOM
@@ -17369,7 +17498,7 @@ EOCP
 			esac
 		fi
 	done
-	$rm -f try.* try$exe_ext
+	$rm_try
 esac
 case "$stdio_stream_array" in
 '')	$cat >&4 <<EOM
@@ -17410,7 +17539,7 @@ else
 fi
 set d_strctcpy
 eval $setvar
-$rm -f try try.*
+$rm_try
 
 : see if strerror and/or sys_errlist[] exist
 echo " "
@@ -17542,7 +17671,7 @@ EOM
 #define strtoll _strtoll
 #endif
 #include <stdio.h>
-extern long long int strtoll(char *s, char **, int); 
+extern long long int strtoll(char *s, char **, int);
 static int bad = 0;
 int check(char *s, long long ell, int een) {
 	long long gll;
@@ -17599,7 +17728,7 @@ EOM
 	$cat >try.c <<'EOCP'
 #include <errno.h>
 #include <stdio.h>
-extern unsigned long int strtoul(char *s, char **, int); 
+extern unsigned long int strtoul(char *s, char **, int);
 static int bad = 0;
 void check(char *s, unsigned long eul, int een) {
 	unsigned long gul;
@@ -17682,7 +17811,7 @@ EOM
 #define strtoull __strtoull
 #endif
 #include <stdio.h>
-extern unsigned long long int strtoull(char *s, char **, int); 
+extern unsigned long long int strtoull(char *s, char **, int);
 static int bad = 0;
 int check(char *s, long long eull, int een) {
 	long long gull;
@@ -17736,7 +17865,7 @@ EOM
 	$cat >try.c <<'EOCP'
 #include <errno.h>
 #include <stdio.h>
-extern unsigned long long int strtouq(char *s, char **, int); 
+extern unsigned long long int strtouq(char *s, char **, int);
 static int bad = 0;
 void check(char *s, unsigned long long eull, int een) {
 	unsigned long long gull;
@@ -17963,6 +18092,7 @@ fi
 set d_tzname
 eval $setvar
 
+: Check if is a multiplatform env
 case "$osname" in
 next|rhapsody|darwin) multiarch="$define" ;;
 esac
@@ -18049,11 +18179,11 @@ EOM
 		esac
 		;;
 	esac
-	$rm -f try.c try
+	$rm_try
 	;;
 esac
 
-
+: Checking 32bit aligndness
 $cat <<EOM
 
 Checking to see whether you can access character data unalignedly...
@@ -18153,7 +18283,7 @@ else
 	*)	d_u32align="$define" ;;
 	esac
 fi
-$rm -f core core.try.* try.core
+$rm_try
 ;;
 esac
 
@@ -18220,7 +18350,7 @@ case "$d_closedir" in
 #endif
 #endif
 #endif
-#endif 
+#endif
 int main() { return closedir(opendir(".")); }
 EOM
 	set try
@@ -18243,7 +18373,8 @@ EOM
 esac
 set d_void_closedir
 eval $setvar
-$rm -f try try.*
+$rm_try
+
 : see if there is a wait4
 set wait4 d_wait4
 eval $inlibc
@@ -18322,7 +18453,7 @@ EOCP
 	rp="Doubles must be aligned on a how-many-byte boundary?"
 	. ./myread
 	alignbytes="$ans"
-	$rm -f try.c try
+	$rm_try
 	;;
 esac
 
@@ -18401,7 +18532,7 @@ int main(int argc, char *argv[])
     /* check that db.h & libdb are compatible */
     if (DB_VERSION_MAJOR != Major || DB_VERSION_MINOR != Minor || DB_VERSION_PATCH != Patch) {
 	printf("db.h and libdb are incompatible.\n") ;
-        exit(3);	
+        exit(3);
     }
 
     printf("db.h and libdb are compatible.\n") ;
@@ -18413,7 +18544,7 @@ int main(int argc, char *argv[])
     if (Version < 2003004) {
     /* if (DB_VERSION_MAJOR == 2 && DB_VERSION_MINOR == 0 && DB_VERSION_PATCH < 5) { */
 	printf("Perl needs Berkeley DB 2.3.4 or greater.\n") ;
-        exit(2);	
+        exit(2);
     }
 
     exit(0);
@@ -18452,13 +18583,13 @@ EOCP
 			;;
 		esac
 	fi
-	$rm -f try try.*
+	$rm_try
 	;;
 esac
 
 case "$i_db" in
 define)
-	: Check the return type needed for hash 
+	: Check the return type needed for hash
 	echo " "
 	echo "Checking return type needed for hash for Berkeley DB ..." >&4
 	$cat >try.c <<EOCP
@@ -18495,7 +18626,7 @@ EOCP
 		echo "Help:  I can't seem to compile the db test program." >&4
 		echo "Something's wrong, but I'll assume you use $db_hashtype." >&4
 	fi
-	$rm -f try try.*
+	$rm_try
 	echo "Your version of Berkeley DB uses $db_hashtype for hash."
 	;;
 *)	db_hashtype=u_int32_t
@@ -18503,7 +18634,7 @@ EOCP
 esac
 case "$i_db" in
 define)
-	: Check the return type needed for prefix 
+	: Check the return type needed for prefix
 	echo " "
 	echo "Checking return type needed for prefix for Berkeley DB ..." >&4
 	cat >try.c <<EOCP
@@ -18540,14 +18671,13 @@ EOCP
 		echo "Help:  I can't seem to compile the db test program." >&4
 		echo "Something's wrong, but I'll assume you use $db_prefixtype." >&4
 	fi
-	$rm -f try try.*
+	$rm_try
 	echo "Your version of Berkeley DB uses $db_prefixtype for prefix."
 	;;
 *)	db_prefixtype='size_t'
 	;;
 esac
 
-
 : How can we generate normalized random numbers ?
 echo " "
 echo "Looking for a random number function..." >&4
@@ -18653,7 +18783,7 @@ EOCP
 			rp="How many bits does your $randfunc() function produce?"
 			. ./myread
 			randbits="$ans"
-			$rm -f try.c try
+			$rm_try
 			drand01="($randfunc() / (double) ((unsigned long)1 << $randbits))"
 			seedfunc="s$randfunc"
 			randseedtype=unsigned
@@ -18678,6 +18808,7 @@ EOCP
 	esac
 done
 
+: Determine if this is an EBCDIC system
 echo " "
 echo "Determining whether or not we are on an EBCDIC system..." >&4
 $cat >try.c <<'EOM'
@@ -18701,10 +18832,11 @@ else
 	echo "I'm unable to compile the test program." >&4
 	echo "I'll assume ASCII or some ISO Latin. Or UTF8." >&4
 fi
-$rm -f try try.*
+$rm_try
 set ebcdic
 eval $setvar
 
+: Check how to flush
 echo " "
 $cat >&4 <<EOM
 Checking how to flush all pending stdio output...
@@ -18764,7 +18896,7 @@ int main() {
 #    endif
 #   endif
 #  endif
-# endif 
+# endif
 # ifdef HAS_STDIO_STREAM_ARRAY
     if (open_max > 0) {
       long i;
@@ -18773,7 +18905,7 @@ int main() {
 		STDIO_STREAM_ARRAY[i]._file < open_max &&
 		STDIO_STREAM_ARRAY[i]._flag)
 		fflush(&STDIO_STREAM_ARRAY[i]);
-    }	
+    }
   }
 # endif
 #endif
@@ -18824,7 +18956,7 @@ EOM
 			fi
 		fi
 	fi
-	$rm -f core try.core core.try.*
+	$rm_try
 	case "$fflushNULL" in
 	x)	$cat >&4 <<EOM
 Your fflush(NULL) works okay for output streams.
@@ -18942,7 +19074,7 @@ EOM
 					fflushall="`$cat try.out`"
 				fi
 			fi
-			$rm -f core try.core core.try.*
+			$rm_try
 			case "$fflushall" in
 			x)	$cat >&4 <<EOM
 Whew. Flushing explicitly all the stdio streams works.
@@ -18992,7 +19124,7 @@ We won't be flushing handles at all before fork/exec/popen.
 EOM
 	;;
 esac
-$rm -f try.* try$exe_ext
+$rm_try tryp
 
 : Store the full pathname to the ar program for use in the C program
 : Respect a hint or command line value for full_ar.
@@ -19027,12 +19159,13 @@ gid_t) echo "gid_t found." ;;
 	;;
 esac
 
+: Check the size of GID
 echo " "
 case "$gidtype" in
 *_t) zzz="$gidtype"	;;
 *)   zzz="gid"		;;
 esac
-echo "Checking the size of $zzz..." >&4 
+echo "Checking the size of $zzz..." >&4
 cat > try.c <<EOCP
 #include <sys/types.h>
 #include <stdio.h>
@@ -19062,12 +19195,13 @@ else
 fi
 
 
+: Check if GID is signed
 echo " "
 case "$gidtype" in
 *_t) zzz="$gidtype"	;;
 *)   zzz="gid"		;;
 esac
-echo "Checking the sign of $zzz..." >&4 
+echo "Checking the sign of $zzz..." >&4
 cat > try.c <<EOCP
 #include <sys/types.h>
 #include <stdio.h>
@@ -19099,6 +19233,7 @@ else
 fi
 
 
+: Check 64bit sizes
 echo " "
 
 if $test X"$quadtype" != X; then
@@ -19241,21 +19376,20 @@ fi
 if $test X"$sPRId64" = X; then
 	echo "Cannot figure out how to print 64-bit integers." >&4
 fi
-
-$rm -f try try.*
+$rm_try
 
 fi
 
 case "$sPRId64" in
-'')	d_PRId64="$undef"; d_PRIi64="$undef"; d_PRIu64="$undef"; 
-	d_PRIo64="$undef"; d_PRIx64="$undef"; d_PRIXU64="$undef"; 
+'')	d_PRId64="$undef"; d_PRIi64="$undef"; d_PRIu64="$undef";
+	d_PRIo64="$undef"; d_PRIx64="$undef"; d_PRIXU64="$undef";
 	;;
-*)	d_PRId64="$define"; d_PRIi64="$define"; d_PRIu64="$define"; 
-	d_PRIo64="$define"; d_PRIx64="$define"; d_PRIXU64="$define"; 
+*)	d_PRId64="$define"; d_PRIi64="$define"; d_PRIu64="$define";
+	d_PRIo64="$define"; d_PRIx64="$define"; d_PRIXU64="$define";
 	;;
 esac
 
-
+: Check format strings for internal types
 echo " "
 $echo "Checking the format strings to be used for Perl's internal types..." >&4
 
@@ -19314,6 +19448,7 @@ case "$ivdformat" in
     ;;
 esac
 
+: Check format string for GID
 
 echo " "
 $echo "Checking the format string to be used for gids..." >&4
@@ -19361,7 +19496,6 @@ eval $inlibc
 set setgroups d_setgrps
 eval $inlibc
 
-
 : Find type of 2nd arg to 'getgroups()' and 'setgroups()'
 echo " "
 case "$d_getgrps$d_setgrps" in
@@ -19382,6 +19516,7 @@ EOM
 *)  groupstype="$gidtype";;
 esac
 
+: MAD = Misc Attribute Definition
 
 if $test $patchlevel -lt 9; then
 : MAD is not available in 5.8.x or earlier.
@@ -19458,28 +19593,28 @@ ivfprintf(FILE *f, const char *fmt, va_list *valp)
 {
   return vfprintf(f, fmt, *valp);
 }
- 
-int    
+
+int
 myvfprintf(FILE *f, const  char *fmt, va_list val)
 {
   return ivfprintf(f, fmt, &val);
 }
-      
+
 int
-myprintf(char *fmt, ...) 
+myprintf(char *fmt, ...)
 {
   va_list val;
   va_start(val, fmt);
-  return myvfprintf(stdout, fmt, val); 
-}         
+  return myvfprintf(stdout, fmt, val);
+}
 
 int
 main(int ac, char **av)
 {
   signal(SIGSEGV, exit);
 
-  myprintf("%s%cs all right, then\n", "that", '\'');                            
-  exit(0);      
+  myprintf("%s%cs all right, then\n", "that", '\'');
+  exit(0);
 }
 EOCP
 	set try
@@ -19498,7 +19633,7 @@ EOCP
 		need_va_copy="$define"
 		;;
 	esac
-	$rm -f try.* core core.* *.core *.core.*
+	$rm_try
 	;;
 *)	echo "You don't have <stdarg.h>, not checking for va_copy()." >&4
 	;;
@@ -19729,7 +19864,7 @@ else
 fi
 $rm -f foo* bar*
 
-: check for type of arguments to select. 
+: check for type of arguments to select.
 case "$selecttype" in
 '') case "$d_select" in
 	$define)
@@ -19738,7 +19873,7 @@ case "$selecttype" in
 Checking to see what type of arguments are accepted by select().
 EOM
 		hdrs="$define sys/types.h
-			$i_systime sys/time.h 
+			$i_systime sys/time.h
 			$i_sysselct sys/select.h
 			$d_socket sys/socket.h"
 		: The first arg can be int, unsigned, or size_t
@@ -19877,7 +20012,7 @@ EOM
 			val=$ans
 			selectminbits="$val"
 		fi
-		$rm -f try.* try
+		$rm_try
 		;;
 	*)	: no select, so pick a harmless default
 		selectminbits=$safebits
@@ -19898,11 +20033,11 @@ if [ "X$fieldn" = X ]; then
 else
 	xxx=`echo '#include <signal.h>' |
 	$cppstdin $cppminus $cppflags 2>/dev/null |
-	$grep '^[ 	]*#.*include' | 
+	$grep '^[ 	]*#.*include' |
 	$awk "{print \\$$fieldn}" | $sed 's!"!!g' | $sed 's!\\\\\\\\!/!g' | $sort | $uniq`
 fi
 : Check this list of files to be sure we have parsed the cpp output ok.
-: This will also avoid potentially non-existent files, such 
+: This will also avoid potentially non-existent files, such
 : as ../foo/bar.h
 xxxfiles=''
 for xx in $xxx /dev/null ; do
@@ -20019,14 +20154,14 @@ $1 ~ /^NSIG$/ { nsig = $2 }
     if (sig_name[$2]) {
 	dup_name[ndups] = $1
 	dup_num[ndups] = $2
-	ndups++ 
+	ndups++
     }
     else {
 	sig_name[$2] = $1
 	sig_num[$2] = $2
     }
 }
-END { 
+END {
     if (nsig == 0) {
     	nsig = maxsig + 1
     }
@@ -20036,7 +20171,7 @@ END {
  	    printf("%s %d\n", sig_name[n], sig_num[n])
 	}
  	else {
- 	    printf("NUM%d %d\n", n, n) 
+ 	    printf("NUM%d %d\n", n, n)
  	}
     }
     for (n = 0; n < ndups; n++) {
@@ -20156,14 +20291,15 @@ echo $sig_name | $awk \
 	printf "\n"
 }'
 sig_size=`echo $sig_name | awk '{print NF}'`
-$rm -f signal signal.c signal.awk signal.lst signal_cmd 
+$rm -f signal signal.c signal.awk signal.lst signal_cmd
 
+: Check size of size
 echo " "
 case "$sizetype" in
 *_t) zzz="$sizetype"	;;
 *)   zzz="filesize"	;;
 esac
-echo "Checking the size of $zzz..." >&4 
+echo "Checking the size of $zzz..." >&4
 cat > try.c <<EOCP
 #include <sys/types.h>
 #include <stdio.h>
@@ -20215,7 +20351,7 @@ else
 	size_t) echo "(You do have size_t, that might work. Some people are happy with just an int.)" ;;
 	esac
 fi
-$rm -f try try.*
+$rm_try
 set d_socklen_t
 eval $setvar
 
@@ -20287,7 +20423,7 @@ int main()
 		printf("$dflt\n");
 	else if (sizeof(Size_t) == sizeof(int))
 		printf("int\n");
-	else 
+	else
 		printf("long\n");
 	exit(0);
 }
@@ -20311,7 +20447,7 @@ EOM
 	. ./myread
 	ssizetype="$ans"
 fi
-$rm -f try try.*
+$rm_try
 
 : see what type of char stdio uses.
 echo " "
@@ -20350,12 +20486,13 @@ uid_t)	echo "uid_t found." ;;
 	;;
 esac
 
+: Check size of UID
 echo " "
 case "$uidtype" in
 *_t) zzz="$uidtype"	;;
 *)   zzz="uid"		;;
 esac
-echo "Checking the size of $zzz..." >&4 
+echo "Checking the size of $zzz..." >&4
 cat > try.c <<EOCP
 #include <sys/types.h>
 #include <stdio.h>
@@ -20384,6 +20521,7 @@ else
 	echo "(I can't compile the test program--guessing $uidsize.)" >&4
 fi
 
+: Check if UID is signed
 echo " "
 case "$uidtype" in
 *_t) zzz="$uidtype"	;;
@@ -20421,7 +20559,7 @@ else
 fi
 
 
-
+: Check format string for UID
 echo " "
 $echo "Checking the format string to be used for uids..." >&4
 
@@ -20460,7 +20598,7 @@ case "$uidsign" in
 	;;
 esac
 
-
+: Check if site customization support was requested
 case "$usesitecustomize" in
     $define|true|[Yy]*)
 	usesitecustomize="$define"
@@ -20501,6 +20639,10 @@ case "$yacc" in
 	;;
 esac
 
+: see if this is a assert.h system
+set assert.h i_assert
+eval $inhdr
+
 : see if this is a fp.h system
 set fp.h i_fp
 eval $inhdr
@@ -20548,8 +20690,6 @@ else
 	i_machcthr="$undef"
 fi
 
-
-
 : see if this is a mntent.h system
 set mntent.h i_mntent
 eval $inhdr
@@ -20611,7 +20751,7 @@ EOM
 		echo "We won't be including <net/errno.h>." >&4
 		val="$undef"
 	fi
-	$rm -f try.* try
+	$rm_try
 	;;
 esac
 set i_neterrno
@@ -20629,6 +20769,7 @@ eval $inhdr
 set prot.h i_prot
 eval $inhdr
 
+: Preprocessor symbols
 echo " "
 $echo "Guessing which symbols your C compiler and preprocessor define..." >&4
 $cat <<'EOSH' > Cppsym.know
@@ -20654,7 +20795,7 @@ IA64 iAPX286 ibm ibm032 ibmesa IBMR2 ibmrt ILP32 ILP64
 INLINE_INTRINSICS INTRINSICS INT64 interdata is68k ksr1
 LANGUAGE_C LARGE_FILE_API LARGEFILE64_SOURCE
 LARGEFILE_SOURCE LFS64_LARGEFILE LFS_LARGEFILE
-Linux LITTLE_ENDIAN LONG64 LONG_DOUBLE LONG_LONG
+LIBCATAMOUNT Linux LITTLE_ENDIAN LONG64 LONG_DOUBLE LONG_LONG
 LONGDOUBLE LONGLONG LP64 luna luna88k Lynx
 M68000 m68k m88100 m88k M88KBCS_TARGET M_COFF
 M_I186 M_I286 M_I386 M_I8086 M_I86 M_I86SM M_SYS3
@@ -20673,7 +20814,7 @@ pa_risc PA_RISC1_1 PA_RISC2_0 PARAGON parisc
 pc532 pdp11 PGC PIC plexus PORTAR posix
 POSIX1B_SOURCE POSIX2_SOURCE POSIX4_SOURCE
 POSIX_C_SOURCE POSIX_SOURCE POWER
-PROTOTYPES PWB pyr QNX R3000 REENTRANT RES Rhapsody RISC6000
+PROTOTYPES PWB pyr QNX QK_USER R3000 REENTRANT RES Rhapsody RISC6000
 riscix riscos RT S390 SA110 scs SCO sequent sgi SGI_SOURCE SH3 sinix
 SIZE_INT SIZE_LONG SIZE_PTR SOCKET_SOURCE SOCKETS_SOURCE
 sony sony_news sonyrisc sparc sparclite spectrum
@@ -20793,7 +20934,7 @@ do
 	-A*) $test "$gccversion" && echo "\$i" | $sed 's/^-A//' | $sed 's/\(.*\)(\(.*\))/\1=\2/';;
 	esac
 done
-$rm -f try.c
+$rm_try
 EOS
 postprocess_cc_v=''
 chmod +x ccsym
@@ -20954,12 +21095,10 @@ fi
 set i_syssockio
 eval $setvar
 
-
 : see if this is a syslog.h system
 set syslog.h i_syslog
 eval $inhdr
 
-
 : see if this is a sys/mode.h system
 set sys/mode.h i_sysmode
 eval $inhdr
@@ -20980,7 +21119,6 @@ eval $inhdr
 set sys/un.h i_sysun
 eval $inhdr
 
-
 : see if this is a sys/utsname.h system
 set sys/utsname.h i_sysutsname
 eval $inhdr
@@ -21012,6 +21150,7 @@ case "$d_vfork" in
 	;;
 esac
 
+: Check extensions
 echo " "
 echo "Looking for extensions..." >&4
 : If we are using the old config.sh, known_extensions may contain
@@ -21051,15 +21190,15 @@ cd "$rsrc/ext"
 set X
 shift
 eval $find_extensions
-# Special case:  Add in threads/shared since it is not picked up by the
-# recursive find above (and adding in general recursive finding breaks
-# SDBM_File/sdbm).  A.D.  10/25/2001.
-known_extensions="$known_extensions threads/shared"
+# Special case:  Add in modules that nest beyond the first level.
+# Currently threads/shared and Hash/Util/FieldHash, since they are
+# not picked up by the recursive find above (and adding in general
+# recursive finding breaks SDBM_File/sdbm).
+# A.D. 20011025 (SDBM), ajgough 20071008 (FieldHash)
+known_extensions="$known_extensions threads/shared Hash/Util/FieldHash"
 set X $known_extensions
 shift
 known_extensions="$*"
-#  Ditto for IO/Compress/Base and IO/Compress/Zlib
-nonxs_extensions="$nonxs_extensions IO/Compress/Base IO/Compress/Zlib"
 set X $nonxs_extensions
 shift
 nonxs_extensions="$*"
@@ -21084,6 +21223,12 @@ for xxx in $known_extensions ; do
 		$define$define) avail_ext="$avail_ext $xxx" ;;
 		esac
 		;;
+	IPC/SysV|ipc/sysv)
+		: XXX Do we need a useipcsysv variable here
+		case "${d_msg}${d_sem}${d_shm}" in
+		*"${define}"*) avail_ext="$avail_ext $xxx" ;;
+		esac
+		;;
 	NDBM_File|ndbm_fil)
 		case "$i_ndbm" in
 		$define)
@@ -21101,24 +21246,28 @@ for xxx in $known_extensions ; do
 	ODBM_File|odbm_fil)
 		case "${i_dbm}${i_rpcsvcdbm}" in
 		*"${define}"*)
-		    case "$osname-$use64bitint" in
-		    hpux-define)
-			case "$libs" in
-			*-ldbm*) avail_ext="$avail_ext $xxx" ;;
+		    case "$d_cplusplus" in
+		    define) ;; # delete as a function name will not work
+		    *)  case "$osname-$use64bitint" in
+			hpux-define)
+			    case "$libs" in
+			    *-ldbm*) avail_ext="$avail_ext $xxx" ;;
+			    esac
+			    ;;
+			*) avail_ext="$avail_ext $xxx" ;;
 			esac
 			;;
-		    *) avail_ext="$avail_ext $xxx" ;;
 		    esac
 		    ;;
 		esac
 		;;
-	POSIX|posix)
-		case "$useposix" in
+	Opcode|opcode)
+		case "$useopcode" in
 		true|define|y) avail_ext="$avail_ext $xxx" ;;
 		esac
 		;;
-	Opcode|opcode)
-		case "$useopcode" in
+	POSIX|posix)
+		case "$useposix" in
 		true|define|y) avail_ext="$avail_ext $xxx" ;;
 		esac
 		;;
@@ -21141,11 +21290,25 @@ for xxx in $known_extensions ; do
 	Thread|thread)
                 case "$usethreads" in
                 true|$define|y)
-                        case "$useithreads" in
-                        $undef|false|[nN]*) avail_ext="$avail_ext $xxx" ;;
+                        case "$use5005threads" in
+                        $define|true|[yY]*) avail_ext="$avail_ext $xxx" ;;
                         esac
 		esac
 		;;
+	threads|threads/shared)
+		# threads and threads::shared are special cases.
+		# To stop people from asking "Perl 5.8.0 was supposed
+		# to have this new fancy threads implementation but my
+		# perl doesn't have it" and from people trying to
+		# (re)install the threads module using CPAN.pm and
+		# CPAN.pm then offering to reinstall Perl 5.8.0,
+		# the threads.pm and threads/shared.pm will always be
+		# there, croaking informatively ("you need to rebuild
+		# all of Perl with threads, sorry") when threads haven't
+		# been compiled in.
+		# --jhi
+		avail_ext="$avail_ext $xxx"
+		;;
 	Win32*)
 		case "$osname" in
 		cygwin) avail_ext="$avail_ext $xxx" ;;
@@ -21164,26 +21327,6 @@ for xxx in $known_extensions ; do
 		$define) avail_ext="$avail_ext $xxx" ;;
 		esac
 		;;
-	threads|threads/shared)
-		# threads and threads::shared are special cases.
-		# To stop people from asking "Perl 5.8.0 was supposed
-		# to have this new fancy threads implementation but my
-		# perl doesn't have it" and from people trying to
-		# (re)install the threads module using CPAN.pm and
-		# CPAN.pm then offering to reinstall Perl 5.8.0,
-		# the threads.pm and threads/shared.pm will always be
-		# there, croaking informatively ("you need to rebuild
-		# all of Perl with threads, sorry") when threads haven't
-		# been compiled in.
-		# --jhi
-		avail_ext="$avail_ext $xxx"
-		;;
-	IPC/SysV|ipc/sysv)
-		: XXX Do we need a useipcsysv variable here
-		case "${d_msg}${d_sem}${d_shm}" in
-		*"${define}"*) avail_ext="$avail_ext $xxx" ;;
-		esac
-		;;
 	*)	avail_ext="$avail_ext $xxx"
 		;;
 	esac
@@ -21539,7 +21682,6 @@ ccversion='$ccversion'
 cf_by='$cf_by'
 cf_email='$cf_email'
 cf_time='$cf_time'
-charsize='$charsize'
 chgrp='$chgrp'
 chmod='$chmod'
 chown='$chown'
@@ -22006,6 +22148,7 @@ dlsrc='$dlsrc'
 doublesize='$doublesize'
 drand01='$drand01'
 drand48_r_proto='$drand48_r_proto'
+dtrace='$dtrace'
 dynamic_ext='$dynamic_ext'
 eagain='$eagain'
 ebcdic='$ebcdic'
@@ -22087,6 +22230,7 @@ i64type='$i64type'
 i8size='$i8size'
 i8type='$i8type'
 i_arpainet='$i_arpainet'
+i_assert='$i_assert'
 i_bsdioctl='$i_bsdioctl'
 i_crypt='$i_crypt'
 i_db='$i_db'
@@ -22335,6 +22479,7 @@ readdir64_r_proto='$readdir64_r_proto'
 readdir_r_proto='$readdir_r_proto'
 revision='$revision'
 rm='$rm'
+rm_try='$rm_try'
 rmail='$rmail'
 run='$run'
 runnm='$runnm'
@@ -22464,6 +22609,7 @@ use64bitall='$use64bitall'
 use64bitint='$use64bitint'
 usecrosscompile='$usecrosscompile'
 usedl='$usedl'
+usedtrace='$usedtrace'
 usefaststdio='$usefaststdio'
 useithreads='$useithreads'
 uselargefiles='$uselargefiles'