Batch of small 64-bit/long double/large file support tweaks:

- scan for LDBL_DIG
- from DBL_DIG and LDBL_DIG select NV_DIG
- introduce IVSIZE, UVSIZE, NVSIZE
- introduce IV_DIG
- remove stdio64
- AIX uses `oslevel` when others use `uname -r`
- already AIX 4.2 goes 64-bit
- in HP-UX require the 64-bit libc, just the directory isn't enough
- group ids are not NVs
- #undef USE_LONG_DOUBLE if long double is no better than double
- introduce NV_WITHIN_*() and IV_FITS_IN_IV
- mention large file support in perldelta
- introduce quad TOPpin' and POPpin'
- the svcat... buffer was tiny for printing quads in %b
- fix the multiplication test in 64bit.t
- try to make VMS to comply with all this removal and "introducal"
  of symbols

p4raw-id: //depot/cfgperl@3995

2 files changed, 12 insertions, 9 deletions

diff --git a/hints/aix.sh b/hints/aix.sh
index 0bf75ad353..5a027b3837 100644
--- a/hints/aix.sh
+++ b/hints/aix.sh
@@ -174,11 +174,11 @@ EOCBU
 cat > UU/use64bits.cbu <<'EOCBU'
 case "$use64bits" in
 $define|true|[yY]*)
-	    case "`uname -r`" in
+	    case "`oslevel`" in
 	    3.*|4.[012].*)
 		cat >&4 <<EOM
-AIX `uname -r` does not support 64-bit interfaces.
-You should upgrade to at least AIX 4.3.
+AIX `oslevel` does not support 64-bit interfaces.
+You should upgrade to at least AIX 4.2.
 EOM
 		exit 1
 		;;
@@ -190,14 +190,16 @@ EOM
 	    # _Somehow_ in AIX 4.3.1.0 the above getconf call manages to
 	    # insert(?) *something* to $ldflags so that later (in Configure) evaluating
 	    # $ldflags causes a newline after the '-b64' (the result of the getconf).
+	    # (nothing strange shows up in $ldflags even in hexdump;
+	    #  so it may be something in the shell, instead?)
 	    # Try it out: just uncomment the below line and rerun Configure:
 #	    echo >& "AIX $ldflags mystery" ; exit 1
 	    # Just don't ask me how AIX does it.
-	    # Therefore the line re-evaluating ldflags: it seems to drop the whatever
-	    # AIX managed to break. --jhi
+	    # Therefore the line re-evaluating ldflags: it seems to bypass
+	    # the whatever it was AIX managed to break. --jhi
 	    ldflags="`echo $ldflags`"
 
-	    libswanted="$libswanted `getconf XBS5_LPBIG_OFFBIG_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g'`"
+	    libswanted="$libswanted `getconf XBS5_ILP32_OFFBIG_LIBS 2>/dev/null|sed -e 's@^-l@@' -e 's@ -l@ @g'`"
 	    # When a 64-bit cc becomes available $archname64
 	    # may need setting so that $archname gets it attached.
 	    ;;
@@ -205,7 +207,7 @@ esac
 EOCBU
 
 # This script UU/uselongdouble.cbu will get 'called-back' by Configure 
-# after it has prompted the user for whether to use 64 bits.
+# after it has prompted the user for whether to use long doubles.
 cat > UU/uselongdouble.cbu <<'EOCBU'
 case "$uselongdouble" in
 $define|true|[yY]*)
diff --git a/hints/hpux.sh b/hints/hpux.sh
index 13b09cfbf0..eb9b6856e7 100644
--- a/hints/hpux.sh
+++ b/hints/hpux.sh
@@ -268,9 +268,10 @@ Cannot continue, aborting.
 EOM
 		exit 1
 	    fi
-	    if [ ! -d /lib/pa20_64 ]; then
+	    if [ ! -f /lib/pa20_64/libc.sl ]; then
 		cat <<EOM >&4
-You do not seem to have the 64-bit libraries, /lib/pa20_64.
+You do not seem to have the 64-bit libraries in /lib/pa20_64.
+Most importantly, I cannot find /lib/pa20_64/libc.sl.
 Cannot continue, aborting.
 EOM
 		exit 1