xref: /openbsd-src/gnu/usr.bin/perl/hints/hpux.sh (revision d13be5d47e4149db2549a9828e244d59dbc43f15) 
1#!/usr/bin/sh
2
3### SYSTEM ARCHITECTURE
4
5# Determine the architecture type of this system.
6# Keep leading tab below -- Configure Black Magic -- RAM, 03/02/97
7	xxOsRevMajor=`uname -r | sed -e 's/^[^0-9]*//' | cut -d. -f1`;
8	xxOsRevMinor=`uname -r | sed -e 's/^[^0-9]*//' | cut -d. -f2`;
9	xxOsRev=`expr 100 \* $xxOsRevMajor + $xxOsRevMinor`
10if [ "$xxOsRevMajor" -ge 10 ]; then
11    # This system is running >= 10.x
12
13    # Tested on 10.01 PA1.x and 10.20 PA[12].x.
14    # Idea: Scan /usr/include/sys/unistd.h for matches with
15    # "#define CPU_* `getconf # CPU_VERSION`" to determine CPU type.
16    # Note the text following "CPU_" is used, *NOT* the comment.
17    #
18    # ASSUMPTIONS: Numbers will continue to be defined in hex -- and in
19    # /usr/include/sys/unistd.h -- and the CPU_* #defines will be kept
20    # up to date with new CPU/OS releases.
21    xxcpu=`getconf CPU_VERSION`; # Get the number.
22    xxcpu=`printf '0x%x' $xxcpu`; # convert to hex
23    archname=`sed -n -e "s/^#[[:space:]]*define[[:space:]]*CPU_//p" /usr/include/sys/unistd.h |
24	sed -n -e "s/[[:space:]]*$xxcpu[[:space:]].*//p" |
25	sed -e s/_RISC/-RISC/ -e s/HP_// -e s/_/./ -e "s/[[:space:]]*//g"`;
26else
27    # This system is running <= 9.x
28    # Tested on 9.0[57] PA and [78].0 MC680[23]0.  Idea: After removing
29    # MC6888[12] from context string, use first CPU identifier.
30    #
31    # ASSUMPTION: Only CPU identifiers contain no lowercase letters.
32    archname=`getcontext | tr ' ' '\012' | grep -v '[a-z]' | grep -v MC688 |
33	sed -e 's/HP-//' -e 1q`;
34    selecttype='int *'
35    fi
36
37# For some strange reason, the u32align test from Configure hangs in
38# HP-UX 10.20 since the December 2001 patches.  So hint it to avoid
39# the test.
40if [ "$xxOsRevMajor" -le 10 ]; then
41    d_u32align=$define
42    fi
43
44echo "Archname is $archname"
45
46# Fix XSlib (CPAN) confusion when re-using a prefix but changing from ILP32
47# to LP64 builds.  They're NOT binary compatible, so quit claiming they are.
48archname64=LP64
49
50
51### HP-UX OS specific behaviour
52
53# -ldbm is obsolete and should not be used
54# -lBSD contains BSD-style duplicates of SVR4 routines that cause confusion
55# -lPW is obsolete and should not be used
56# The libraries crypt, malloc, ndir, and net are empty.
57set `echo "X $libswanted " | sed -e 's/ ld / /' -e 's/ dbm / /' -e 's/ BSD / /' -e 's/ PW / /'`
58shift
59libswanted="$*"
60
61cc=${cc:-cc}
62ar=/usr/bin/ar	# Yes, truly override.  We do not want the GNU ar.
63full_ar=$ar	# I repeat, no GNU ar.  arrr.
64
65set `echo "X $ccflags " | sed -e 's/ -A[ea] / /' -e 's/ -D_HPUX_SOURCE / /'`
66shift
67	cc_cppflags="$* -D_HPUX_SOURCE"
68cppflags="-Aa -D__STDC_EXT__ $cc_cppflags"
69
70case "$prefix" in
71    "") prefix='/opt/perl5' ;;
72    esac
73
74    gnu_as=no
75    gnu_ld=no
76case `$cc -v 2>&1`"" in
77    *gcc*)  ccisgcc="$define"
78	    ccflags="$cc_cppflags"
79	    if [ "X$gccversion" = "X" ]; then
80		# Done too late in Configure if hinted
81		gccversion=`$cc -dumpversion`
82		fi
83	    case "$gccversion" in
84		[012]*) # HP-UX and gcc-2.* break UINT32_MAX :-(
85			ccflags="$ccflags -DUINT32_MAX_BROKEN"
86			;;
87		[34]*) # GCC (both 32bit and 64bit) will define __STDC_EXT__
88                       # by default when using GCC 3.0 and newer versions of
89                       # the compiler.
90                       cppflags="$cc_cppflags"
91                       ;;
92		esac
93	    case "`getconf KERNEL_BITS 2>/dev/null`" in
94		*64*)
95		    echo "main(){}">try.c
96		    case "$gccversion" in
97			[34]*)
98			    case "$archname" in
99                               PA-RISC*)
100                                   case "$ccflags" in
101                                       *-mpa-risc*) ;;
102                                       *) ccflags="$ccflags -mpa-risc-2-0" ;;
103                                       esac
104                                   ;;
105				esac
106			    ;;
107			*)  # gcc with gas will not accept +DA2.0
108			    case "`$cc -c -Wa,+DA2.0 try.c 2>&1`" in
109				*"+DA2.0"*)		# gas
110				    gnu_as=yes
111				    ;;
112				*)			# HPas
113				    ccflags="$ccflags -Wa,+DA2.0"
114				    ;;
115				esac
116			    ;;
117			esac
118		    # gcc with gld will not accept +vnocompatwarnings
119		    case "`$cc -o try -Wl,+vnocompatwarnings try.c 2>&1`" in
120			*"+vnocompat"*)		# gld
121			    gnu_ld=yes
122			    ;;
123			*)			# HPld
124			   case "$gccversion" in
125			       [12]*)
126				   # Why not 3 as well here?
127				   # Since not relevant to IA64, not changed.
128				   ldflags="$ldflags -Wl,+vnocompatwarnings"
129				   ccflags="$ccflags -Wl,+vnocompatwarnings"
130				   ;;
131			       esac
132			    ;;
133			esac
134		    rm -f try.c
135		    ;;
136		esac
137	    ;;
138    *)      ccisgcc=''
139	    # What cannot be use in combination with ccache links :(
140	    cc_found=""
141	    for p in `echo $PATH | tr : ' ''` ; do
142		x="$p/cc"
143		if [ -f $x ] && [ -x $x ]; then
144		    if [ -h $x ]; then
145			l=`ls -l $x | sed 's,.*-> ,,'`
146			case $l in
147			    /*) x=$l		;;
148			    *)  x="$p/$l"	;;
149			    esac
150			fi
151		    x=`echo $x | sed 's,/\./,/,g'`
152		    case $x in
153			*ccache*) ;;
154			*) [ -z "$cc_found" ] && cc_found=$x ;;
155			esac
156		    fi
157		done
158	    [ -z "$cc_found" ] && cc_found=`which cc`
159	    what $cc_found >&4
160	    ccversion=`what $cc_found | awk '/Compiler/{print $2}/Itanium/{print $6,$7}/for Integrity/{print $6}'`
161	    case "$ccflags" in
162               "-Ae "*) ;;
163		*)  ccflags="-Ae $cc_cppflags"
164		    # +vnocompatwarnings not known in 10.10 and older
165		    if [ $xxOsRev -ge 1020 ]; then
166			ccflags="$ccflags -Wl,+vnocompatwarnings"
167			fi
168		    ;;
169               esac
170	    # Needed because cpp does only support -Aa (not -Ae)
171	    cpplast='-'
172	    cppminus='-'
173	    cppstdin='cc -E -Aa -D__STDC_EXT__'
174	    cpprun=$cppstdin
175#	    case "$d_casti32" in
176#		"") d_casti32='undef' ;;
177#		esac
178	    ;;
179    esac
180
181# When HP-UX runs a script with "#!", it sets argv[0] to the script name.
182toke_cflags='ccflags="$ccflags -DARG_ZERO_IS_SCRIPT"'
183
184### 64 BITNESS
185
186# Some gcc versions do native 64 bit long (e.g. 2.9-hppa-000310 and gcc-3.0)
187# We have to force 64bitness to go search the right libraries
188    gcc_64native=no
189case "$ccisgcc" in
190    $define|true|[Yy])
191	echo '#include <stdio.h>\nint main(){long l;printf("%d\\n",sizeof(l));}'>try.c
192	$cc -o try $ccflags $ldflags try.c
193	if [ "`try`" = "8" ]; then
194	    case "$use64bitall" in
195		$define|true|[Yy]) ;;
196		*)  cat <<EOM >&4
197
198*** This version of gcc uses 64 bit longs. -Duse64bitall is
199*** implicitly set to enable continuation
200EOM
201		esac
202	    use64bitall=$define
203	    gcc_64native=yes
204	    fi
205	;;
206    esac
207
208case "$use64bitall" in
209    $define|true|[yY]*) use64bitint="$define" ;;
210    esac
211
212case "$usemorebits" in
213    $define|true|[yY]*) use64bitint="$define"; uselongdouble="$define" ;;
214    esac
215
216case "$archname" in
217    IA64*)
218	# While here, override so=sl auto-detection
219	so='so'
220	;;
221    esac
222
223case "$use64bitint" in
224    $define|true|[Yy])
225
226	if [ "$xxOsRevMajor" -lt 11 ]; then
227	    cat <<EOM >&4
228
229*** 64-bit compilation is not supported on HP-UX $xxOsRevMajor.
230*** You need at least HP-UX 11.0.
231*** Cannot continue, aborting.
232EOM
233	    exit 1
234	    fi
235
236	if [ $xxOsRev -eq 1100 ]; then
237	    # HP-UX 11.00 uses only 48 bits internally in 64bit mode, not 64
238	    # force min/max to 2**47-1
239	    sGMTIME_max=140737488355327
240	    sGMTIME_min=-62167219200
241	    sLOCALTIME_max=140737488355327
242	    sLOCALTIME_min=-62167219200
243	    fi
244
245	# Set libc and the library paths
246	case "$archname" in
247	    PA-RISC*)
248		loclibpth="$loclibpth /lib/pa20_64"
249		libc='/lib/pa20_64/libc.sl' ;;
250	    IA64*)
251		loclibpth="$loclibpth /usr/lib/hpux64"
252		libc='/usr/lib/hpux64/libc.so' ;;
253	    esac
254	if [ ! -f "$libc" ]; then
255	    cat <<EOM >&4
256
257*** You do not seem to have the 64-bit libc.
258*** I cannot find the file $libc.
259*** Cannot continue, aborting.
260EOM
261	    exit 1
262	    fi
263
264	case "$ccisgcc" in
265	    $define|true|[Yy])
266		# For the moment, don't care that it ain't supported (yet)
267		# by gcc (up to and including 2.95.3), cause it'll crash
268		# anyway. Expect auto-detection of 64-bit enabled gcc on
269		# HP-UX soon, including a user-friendly exit
270		case $gcc_64native in
271		    no) case "$gccversion" in
272			    [1234]*)
273				ccflags="$ccflags -mlp64"
274				case "$archname" in
275				    PA-RISC*)
276					ldflags="$ldflags -Wl,+DD64"
277					;;
278				    IA64*)
279					ldflags="$ldflags -mlp64"
280					;;
281				    esac
282				;;
283			    esac
284			;;
285		    esac
286		;;
287	    *)
288		case "$use64bitall" in
289		    $define|true|[yY]*)
290			ccflags="$ccflags +DD64"
291			ldflags="$ldflags +DD64"
292			;;
293		    esac
294		;;
295	    esac
296
297	# Reset the library checker to make sure libraries
298	# are the right type
299	# (NOTE: on IA64, this doesn't work with .a files.)
300	libscheck='case "`/usr/bin/file $xxx`" in
301		       *ELF-64*|*LP64*|*PA-RISC2.0*) ;;
302		       *) xxx=/no/64-bit$xxx ;;
303		       esac'
304
305	;;
306
307    *)	# Not in 64-bit mode
308
309	case "$archname" in
310	    PA-RISC*)
311		libc='/lib/libc.sl' ;;
312	    IA64*)
313		loclibpth="$loclibpth /usr/lib/hpux32"
314		libc='/usr/lib/hpux32/libc.so' ;;
315	    esac
316	;;
317    esac
318
319# By setting the deferred flag below, this means that if you run perl
320# on a system that does not have the required shared library that you
321# linked it with, it will die when you try to access a symbol in the
322# (missing) shared library.  If you would rather know at perl startup
323# time that you are missing an important shared library, switch the
324# comments so that immediate, rather than deferred loading is
325# performed.  Even with immediate loading, you can postpone errors for
326# undefined (or multiply defined) routines until actual access by
327# adding the "nonfatal" option.
328# ccdlflags="-Wl,-E -Wl,-B,immediate $ccdlflags"
329# ccdlflags="-Wl,-E -Wl,-B,immediate,-B,nonfatal $ccdlflags"
330if [ "$gnu_ld" = "yes" ]; then
331    ccdlflags="-Wl,-E $ccdlflags"
332else
333    ccdlflags="-Wl,-E -Wl,-B,deferred $ccdlflags"
334    fi
335
336
337### COMPILER SPECIFICS
338
339## Local restrictions (point to README.hpux to lift these)
340
341## Optimization limits
342cat >try.c <<EOF
343#include <stdio.h>
344#include <sys/resource.h>
345
346int main ()
347{
348    struct rlimit rl;
349    int i = getrlimit (RLIMIT_DATA, &rl);
350    printf ("%d\n", (int)(rl.rlim_cur / (1024 * 1024)));
351    } /* main */
352EOF
353$cc -o try $ccflags $ldflags try.c
354	maxdsiz=`try`
355rm -f try try.c core
356if [ $maxdsiz -le 64 ]; then
357    # 64 Mb is probably not enough to optimize toke.c
358    # and regexp.c with -O2
359    cat <<EOM >&4
360Your kernel limits the data section of your programs to $maxdsiz Mb,
361which is (sadly) not enough to fully optimize some parts of the
362perl binary. I'll try to use a lower optimization level for
363those parts. If you are a sysadmin, and you *do* want full
364optimization, raise the 'maxdsiz' kernel configuration parameter
365to at least 0x08000000 (128 Mb) and rebuild your kernel.
366EOM
367regexec_cflags=''
368doop_cflags=''
369op_cflags=''
370    fi
371
372case "$ccisgcc" in
373    $define|true|[Yy])
374
375	case "$optimize" in
376	    "")           optimize="-g -O" ;;
377	    *O[3456789]*) optimize=`echo "$optimize" | sed -e 's/O[3-9]/O2/'` ;;
378	    esac
379	#ld="$cc"
380	ld=/usr/bin/ld
381	cccdlflags='-fPIC'
382	#lddlflags='-shared'
383	lddlflags='-b'
384	case "$optimize" in
385	    *-g*-O*|*-O*-g*)
386		# gcc without gas will not accept -g
387		echo "main(){}">try.c
388		case "`$cc $optimize -c try.c 2>&1`" in
389		    *"-g option disabled"*)
390			set `echo "X $optimize " | sed -e 's/ -g / /'`
391			shift
392			optimize="$*"
393			;;
394		    esac
395		;;
396	    esac
397	if [ $maxdsiz -le 64 ]; then
398	    case "$optimize" in
399		*O2*)	opt=`echo "$optimize" | sed -e 's/O2/O1/'`
400			toke_cflags="$toke_cflags;optimize=\"$opt\""
401			regexec_cflags="optimize=\"$opt\""
402			;;
403		esac
404	    fi
405	;;
406
407    *)	# HP's compiler cannot combine -g and -O
408	case "$optimize" in
409	    "")           optimize="+O2 +Onolimit" ;;
410	    *O[3456789]*) optimize=`echo "$optimize" | sed -e 's/O[3-9]/O2/'` ;;
411	    esac
412	case "$optimize" in
413	    *-O*|\
414	    *O2*)   opt=`echo "$optimize" | sed -e 's/-O/+O2/' -e 's/O2/O1/' -e 's/ *+Onolimit//'`
415		    ;;
416	    *)      opt="$optimize"
417		    ;;
418	    esac
419	case "$archname" in
420	    IA64*)
421		case "$ccversion" in
422		    B3910B*A.06.0[12345])
423			# > cc --version
424			# cc: HP aC++/ANSI C B3910B A.06.05 [Jul 25 2005]
425			# Has optimizing problems with -O2 and up for both
426			# maint (5.8.8+) and blead (5.9.3+)
427			# -O1/+O1 passed all tests (m)'05 [ 10 Jan 2005 ]
428			optimize="$opt"			;;
429		    *)  doop_cflags="optimize=\"$opt\""
430			op_cflags="optimize=\"$opt\""	;;
431		    esac
432		;;
433	    esac
434	if [ $maxdsiz -le 64 ]; then
435	    toke_cflags="$toke_cflags;optimize=\"$opt\""
436	    regexec_cflags="optimize=\"$opt\""
437	    fi
438	ld=/usr/bin/ld
439	cccdlflags='+Z'
440	lddlflags='-b +vnocompatwarnings'
441	;;
442    esac
443
444## LARGEFILES
445if [ $xxOsRev -lt 1020 ]; then
446    uselargefiles="$undef"
447    fi
448
449#case "$uselargefiles-$ccisgcc" in
450#    "$define-$define"|'-define')
451#	cat <<EOM >&4
452#
453#*** I'm ignoring large files for this build because
454#*** I don't know how to do use large files in HP-UX using gcc.
455#
456#EOM
457#	uselargefiles="$undef"
458#	;;
459#    esac
460
461# Once we have the compiler flags defined, Configure will
462# execute the following call-back script. See hints/README.hints
463# for details.
464cat > UU/cc.cbu <<'EOCBU'
465# This script UU/cc.cbu will get 'called-back' by Configure after it
466# has prompted the user for the C compiler to use.
467
468# Compile and run the a test case to see if a certain gcc bug is
469# present. If so, lower the optimization level when compiling
470# pp_pack.c.  This works around a bug in unpack.
471
472if test -z "$ccisgcc" -a -z "$gccversion"; then
473    : no tests needed for HPc
474else
475    echo " "
476    echo "Testing for a certain gcc bug is fixed in your compiler..."
477
478    # Try compiling the test case.
479    if $cc -o t001 -O $ccflags $ldflags -lm ../hints/t001.c; then
480       gccbug=`$run ./t001`
481       case "$gccbug" in
482           *fails*)
483               cat >&4 <<EOF
484This C compiler ($gccversion) is known to have optimizer
485problems when compiling pp_pack.c.
486
487Disabling optimization for pp_pack.c.
488EOF
489               case "$pp_pack_cflags" in
490                   '') pp_pack_cflags='optimize='
491                       echo "pp_pack_cflags='optimize=\"\"'" >> config.sh ;;
492                   *)  echo "You specified pp_pack_cflags yourself, so we'll go with your value." >&4 ;;
493                   esac
494               ;;
495           *)  echo "Your compiler is ok." >&4
496               ;;
497           esac
498    else
499       echo " "
500       echo "*** WHOA THERE!!! ***" >&4
501       echo "    Your C compiler \"$cc\" doesn't seem to be working!" >&4
502       case "$knowitall" in
503           '') echo "    You'd better start hunting for one and let me know about it." >&4
504               exit 1
505               ;;
506           esac
507       fi
508
509    rm -f t001$_o t001$_exe
510    fi
511EOCBU
512
513cat >UU/uselargefiles.cbu <<'EOCBU'
514# This script UU/uselargefiles.cbu will get 'called-back' by Configure
515# after it has prompted the user for whether to use large files.
516case "$uselargefiles" in
517    ""|$define|true|[yY]*)
518	# there are largefile flags available via getconf(1)
519	# but we cheat for now.  (Keep that in the left margin.)
520ccflags_uselargefiles="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
521
522	case " $ccflags " in
523	*" $ccflags_uselargefiles "*) ;;
524	*) ccflags="$ccflags $ccflags_uselargefiles" ;;
525	esac
526
527	if test -z "$ccisgcc" -a -z "$gccversion"; then
528	    # The strict ANSI mode (-Aa) doesn't like large files.
529	    ccflags=`echo " $ccflags "|sed 's@ -Aa @ @g'`
530	    case "$ccflags" in
531		*-Ae*) ;;
532		*)     ccflags="$ccflags -Ae" ;;
533		esac
534	    fi
535	;;
536    esac
537EOCBU
538
539# THREADING
540
541# This script UU/usethreads.cbu will get 'called-back' by Configure
542# after it has prompted the user for whether to use threads.
543cat >UU/usethreads.cbu <<'EOCBU'
544case "$usethreads" in
545    $define|true|[yY]*)
546	if [ "$xxOsRevMajor" -lt 10 ]; then
547	    cat <<EOM >&4
548
549HP-UX $xxOsRevMajor cannot support POSIX threads.
550Consider upgrading to at least HP-UX 11.
551Cannot continue, aborting.
552EOM
553	    exit 1
554	    fi
555
556	if [ "$xxOsRevMajor" -eq 10 ]; then
557	    # Under 10.X, a threaded perl can be built
558	    if [ -f /usr/include/pthread.h ]; then
559		if [ -f /usr/lib/libcma.sl ]; then
560		    # DCE (from Core OS CD) is installed
561
562		   # Check if it is pristine, or patched
563		   cmavsn=`what /usr/lib/libcma.sl 2>&1 | grep 1996`
564		   if [ ! -z "$cmavsn" ]; then
565		       cat <<EOM >&4
566
567***************************************************************************
568
569Perl will support threading through /usr/lib/libcma.sl from
570the HP DCE package, but the version found is too old to be
571reliable.
572
573If you are not depending on this specific version of the library,
574consider to upgrade using patch PHSS_23672 (read README.hpux)
575
576***************************************************************************
577
578(sleeping for 10 seconds...)
579EOM
580		       sleep 10
581		       fi
582
583		    # It needs # libcma and OLD_PTHREADS_API. Also
584		    # <pthread.h> needs to be #included before any
585		    # other includes (in perl.h)
586
587		    # HP-UX 10.X uses the old pthreads API
588		    d_oldpthreads="$define"
589
590		    # include libcma before all the others
591		    libswanted="cma $libswanted"
592
593		    # tell perl.h to include <pthread.h> before other
594		    # include files
595		    ccflags="$ccflags -DPTHREAD_H_FIRST"
596# First column on purpose:
597# this is not a standard Configure variable
598# but we need to get this noticed.
599pthread_h_first="$define"
600
601		    # HP-UX 10.X seems to have no easy
602		    # way of detecting these *time_r protos.
603		    d_gmtime_r_proto='define'
604		    gmtime_r_proto='REENTRANT_PROTO_I_TS'
605		    d_localtime_r_proto='define'
606		    localtime_r_proto='REENTRANT_PROTO_I_TS'
607
608		    # Avoid the poisonous conflicting (and irrelevant)
609		    # prototypes of setkey ().
610		    i_crypt="$undef"
611
612		    # CMA redefines select to cma_select, and cma_select
613		    # expects int * instead of fd_set * (just like 9.X)
614		    selecttype='int *'
615
616		elif [ -f /usr/lib/libpthread.sl ]; then
617		    # PTH package is installed
618		    libswanted="pthread $libswanted"
619		else
620		    libswanted="no_threads_available"
621		    fi
622	    else
623		libswanted="no_threads_available"
624		fi
625
626	    if [ $libswanted = "no_threads_available" ]; then
627		cat <<EOM >&4
628
629In HP-UX 10.X for POSIX threads you need both of the files
630/usr/include/pthread.h and either /usr/lib/libcma.sl or /usr/lib/libpthread.sl.
631Either you must upgrade to HP-UX 11 or install a posix thread library:
632
633    DCE-CoreTools from HP-UX 10.20 Hardware Extensions 3.0 CD (B3920-13941)
634
635or
636
637    PTH package from e.g. http://hpux.tn.tudelft.nl/hppd/hpux/alpha.html
638
639Cannot continue, aborting.
640EOM
641		exit 1
642		fi
643	else
644	    # 12 may want upping the _POSIX_C_SOURCE datestamp...
645	    ccflags=" -D_POSIX_C_SOURCE=199506L -D_REENTRANT $ccflags"
646	    set `echo X "$libswanted "| sed -e 's/ c / pthread c /'`
647	    shift
648	    libswanted="$*"
649
650	    # HP-UX 11.X seems to have no easy
651	    # way of detecting these *time_r protos.
652	    d_gmtime_r_proto='define'
653	    gmtime_r_proto='REENTRANT_PROTO_S_TS'
654	    d_localtime_r_proto='define'
655	    localtime_r_proto='REENTRANT_PROTO_S_TS'
656	    fi
657	;;
658    esac
659EOCBU
660
661# There used to be:
662#  The mysterious io_xs memory corruption in 11.00 32bit seems to get
663#  fixed by not using Perl's malloc.  Flip side is performance loss.
664#  So we want mymalloc for all situations possible
665# That set usemymalloc to 'n' for threaded builds and non-gcc 32bit
666#  non-debugging builds and 'y' for all others
667
668usemymalloc='n'
669case "$useperlio" in
670    $undef|false|[nN]*) usemymalloc='y' ;;
671    esac
672
673# malloc wrap works
674case "$usemallocwrap" in
675    '') usemallocwrap='define' ;;
676    esac
677
678# ctime_r () and asctime_r () seem to have issues for versions before
679# HP-UX 11
680if [ $xxOsRevMajor -lt 11 ]; then
681    d_ctime_r="$undef"
682    d_asctime_r="$undef"
683    fi
684
685# fpclassify () is a macro, the library call is Fpclassify
686# Similarly with the others below.
687d_fpclassify='define'
688d_isnan='define'
689d_isinf='define'
690d_isfinite='define'
691d_unordered='define'
692# Next one(s) need the leading tab.  These are special 'hint' symbols that
693# are not to be propagated to config.sh, all related to pthreads draft 4
694# interfaces.
695case "$d_oldpthreads" in
696    ''|$undef)
697	d_crypt_r_proto='undef'
698	d_getgrent_r_proto='undef'
699	d_getpwent_r_proto='undef'
700	d_strerror_r_proto='undef'
701	;;
702    esac
703