[perl5.git] / hints / netbsd.sh

# hints/netbsd.sh
#
# Please check with packages@netbsd.org before making modifications
# to this file.

case "$archname" in
'')
    archname=`uname -m`-${osname}
    ;;
esac

# NetBSD keeps dynamic loading dl*() functions in /usr/lib/crt0.o,
# so Configure doesn't find them (unless you abandon the nm scan).
# Also, NetBSD 0.9a was the first release to introduce shared
# libraries.
#
case "$osvers" in
0.9|0.8*)
	usedl="$undef"
	;;
*)
	case `uname -m` in
	pmax)
		# NetBSD 1.3 and 1.3.1 on pmax shipped an `old' ld.so,
		# which will not work.
		case "$osvers" in
		1.3|1.3.1)
			d_dlopen=$undef
			;;
		esac
		;;
	esac
	if test -f /usr/libexec/ld.elf_so; then
		# ELF
		d_dlopen=$define
		d_dlerror=$define
		cccdlflags="-DPIC -fPIC $cccdlflags"
		lddlflags="-shared $lddlflags"
		cat >UU/cc.cbu <<'EOCBU'
# gcc 4.6 doesn't support --whole-archive, but it's required for the
# system gcc to build correctly, so check for it
echo 'int f(void) { return 0; }' >try.c
if ${cc:-cc} $cccdlflags -c try.c -otry.o 2>&1 &&
   ${cc:-cc} --whole-archive $lddlflags try.o -otry.so 2>&1 ; then
    lddlflags="--whole-archive $lddlflags"
fi
rm try.c try.o try.so 2>/dev/null
EOCBU
		rpathflag="-Wl,-rpath,"
		case "$osvers" in
		1.[0-5]*)
			#
			# Include the whole libgcc.a into the perl executable
			# so that certain symbols needed by loadable modules
			# built as C++ objects (__eh_alloc, __pure_virtual,
			# etc.) will always be defined.
			#
			ccdlflags="-Wl,-whole-archive -lgcc \
				-Wl,-no-whole-archive -Wl,-E $ccdlflags"
			;;
		*)
			ccdlflags="-Wl,-E $ccdlflags"
			;;
		esac
	elif test -f /usr/libexec/ld.so; then
		# a.out
		d_dlopen=$define
		d_dlerror=$define
		cccdlflags="-DPIC -fPIC $cccdlflags"
		lddlflags="-Bshareable $lddlflags"
		rpathflag="-R"
	else
		d_dlopen=$undef
		rpathflag=
	fi
	;;
esac

# netbsd had these but they don't really work as advertised, in the
# versions listed below.  if they are defined, then there isn't a
# way to make perl call setuid() or setgid().  if they aren't, then
# ($<, $>) = ($u, $u); will work (same for $(/$)).  this is because
# you can not change the real userid of a process under 4.4BSD.
# netbsd fixed this in 1.3.2.
case "$osvers" in
0.9*|1.[012]*|1.3|1.3.1)
	d_setregid="$undef"
	d_setreuid="$undef"
	;;
esac
case "$osvers" in
0.8*)
	;;
*)
	d_getprotoent_r="$undef"
	d_getprotobyname_r="$undef"
	d_getprotobynumber_r="$undef"
	d_setprotoent_r="$undef"
	d_endprotoent_r="$undef"
	d_getservent_r="$undef"
	d_getservbyname_r="$undef"
	d_getservbyport_r="$undef"
	d_setservent_r="$undef"
	d_endservent_r="$undef"
	d_gethostbyname_r="$undef"
	d_gethostbyaddr2_r="$undef"
	d_gethostbyaddr_r="$undef"
	d_sethostent_r="$undef"
	d_gethostent_r="$undef"
	d_endhostent_r="$undef"
	d_getprotoent_r_proto="0"
	d_getprotobyname_r_proto="0"
	d_getprotobynumber_r_proto="0"
	d_setprotoent_r_proto="0"
	d_endprotoent_r_proto="0"
	d_getservent_r_proto="0"
	d_getservbyname_r_proto="0"
	d_getservbyport_r_proto="0"
	d_setservent_r_proto="0"
	d_endservent_r_proto="0"
	d_gethostbyname_r_proto="0"
	d_gethostbyaddr2_r_proto="0"
	d_gethostbyaddr_r_proto="0"
	d_sethostent_r_proto="0"
	d_endhostent_r_proto="0"
	d_gethostent_r_proto="0"
	;;
esac

# These are obsolete in any netbsd.
d_setrgid="$undef"
d_setruid="$undef"

# there's no problem with vfork.
usevfork=true

# This is there but in machine/ieeefp_h.
ieeefp_h="define"

# This script UU/usethreads.cbu will get 'called-back' by Configure
# after it has prompted the user for whether to use threads.
cat > UU/usethreads.cbu <<'EOCBU'
case "$usethreads" in
$define|true|[yY]*)
	lpthread=
	for xxx in pthread; do
		for yyy in $loclibpth $plibpth $glibpth dummy; do
			zzz=$yyy/lib$xxx.a
			if test -f "$zzz"; then
				lpthread=$xxx
				break;
			fi
			zzz=$yyy/lib$xxx.so
			if test -f "$zzz"; then
				lpthread=$xxx
				break;
			fi
			zzz=`ls $yyy/lib$xxx.so.* 2>/dev/null`
			if test "X$zzz" != X; then
				lpthread=$xxx
				break;
			fi
		done
		if test "X$lpthread" != X; then
			break;
		fi
	done
	if test "X$lpthread" != X; then
		# Add -lpthread.
		libswanted="$libswanted $lpthread"
		# There is no libc_r as of NetBSD 1.5.2, so no c -> c_r.
		# This will be revisited when NetBSD gains a native pthreads
		# implementation.
	else
		echo "$0: No POSIX threads library (-lpthread) found.  " \
		     "You may want to install GNU pth.  Aborting." >&4
		exit 1
	fi
	unset lpthread

	# several reentrant functions are embedded in libc, but haven't
	# been added to the header files yet.  Let's hold off on using
	# them until they are a valid part of the API
	case "$osvers" in
	[012].*|3.[0-1])
		d_getprotobyname_r=$undef
		d_getprotobynumber_r=$undef
		d_getprotoent_r=$undef
		d_getservbyname_r=$undef
		d_getservbyport_r=$undef
		d_getservent_r=$undef
		d_setprotoent_r=$undef
		d_setservent_r=$undef
		d_endprotoent_r=$undef
		d_endservent_r=$undef ;;
	esac
	;;

esac
EOCBU

# Set sensible defaults for NetBSD: look for local software in
# /usr/pkg (NetBSD Packages Collection) and in /usr/local.
#
loclibpth="/usr/pkg/lib /usr/local/lib"
locincpth="/usr/pkg/include /usr/local/include"
case "$rpathflag" in
'')
	ldflags=
	;;
*)
	ldflags=
	for yyy in $loclibpth; do
		ldflags="$ldflags $rpathflag$yyy"
	done
	;;
esac

case `uname -m` in
alpha)
    echo 'int main() {}' > try.c
    gcc=`${cc:-cc} -v -c try.c 2>&1|grep 'gcc version egcs-2'`
    case "$gcc" in
    '' | "gcc version egcs-2.95."[3-9]*) ;; # 2.95.3 or better okay
    *)	cat >&4 <<EOF
***
*** Your gcc ($gcc) is known to be
*** too buggy on netbsd/alpha to compile Perl with optimization.
*** It is suggested you install the lang/gcc package which should
*** have at least gcc 2.95.3 which should work okay: use for example
*** Configure -Dcc=/usr/pkg/gcc-2.95.3/bin/cc.  You could also
*** Configure -Doptimize=-O0 to compile Perl without any optimization
*** but that is not recommended.
***
EOF
	exit 1
	;;
    esac
    rm -f try.*
    ;;
esac

# NetBSD/sparc 1.5.3/1.6.1 dumps core in the semid_ds test of Configure.
case `uname -m` in
sparc) d_semctl_semid_ds=undef ;;
esac

# malloc wrap works
case "$usemallocwrap" in
'') usemallocwrap='define' ;;
esac

# don't use perl malloc by default
case "$usemymalloc" in
'') usemymalloc=n ;;
esac

# NetBSD 6 defines the *at() functions in libc, but either doesn't
# implement them, or implements them only for AT_FDCWD
case "$osver" in
[1-6].*)
        d_unlinkat="$undef"
        d_renameat="$undef"
        d_linkat="$undef"
        d_fchmodat="$undef"
        ;;
esac

cat >UU/uselongdouble.cbu <<'EOCBU'
# This script UU/uselongdouble.cbu will get 'called-back' by Configure
# after it has prompted the user for whether to use long doubles.
#
# See https://github.com/Perl/perl5/issues/17853 and https://github.com/Perl/perl5/issues/17854
case "$uselongdouble" in
$define|true|[yY]*)
    cat >try.c <<\TRY
#include <stdio.h>
#include <math.h>

long double x = 1.0;

int main(int argc, char **argv) {
    double e1 = exp(1.0);
    /* as of NetBSD 9.0 expl() just calls exp(),
       Fail here if they're equal. */
    return expl(x) == (long double)e1;
}
TRY
    if $cc -o try $ccflags $ldflags try.c -lm && $run ./try; then
        echo "NetBSD seem to have fixed expl (and hopefully more)" >&4
    else
        cat <<EOM >&4

Warning! NetBSD's long double support is limited enough that it will cause
test failures, and possibly build failures, and this doesn't appear to have
been fixed in the release you're running.

EOM
    fi
;;
esac
EOCBU
Commit	Line	Data
a0d0e21e	1	# hints/netbsd.sh
4633a7c4	2	#
068ac78d JH	3	# Please check with packages@netbsd.org before making modifications
068ac78d JH	4	# to this file.
c9ef717e MG	5
	6	case "$archname" in
	7	'')
	8	archname=`uname -m`-${osname}
	9	;;
	10	esac
	11
068ac78d JH	12	# NetBSD keeps dynamic loading dl*() functions in /usr/lib/crt0.o,
	13	# so Configure doesn't find them (unless you abandon the nm scan).
	14	# Also, NetBSD 0.9a was the first release to introduce shared
	15	# libraries.
	16	#
a0d0e21e	17	case "$osvers" in
4633a7c4	18	0.9\|0.8*)
a0d0e21e LW	19	usedl="$undef"
a0d0e21e LW	20	;;
c9ef717e	21	*)
068ac78d JH	22	case `uname -m` in
	23	pmax)
	24	# NetBSD 1.3 and 1.3.1 on pmax shipped an `old' ld.so,
	25	# which will not work.
	26	case "$osvers" in
	27	1.3\|1.3.1)
	28	d_dlopen=$undef
	29	;;
	30	esac
	31	;;
	32	esac
6195bde2	33	if test -f /usr/libexec/ld.elf_so; then
068ac78d	34	# ELF
099685bc JH	35	d_dlopen=$define
099685bc JH	36	d_dlerror=$define
068ac78d	37	cccdlflags="-DPIC -fPIC $cccdlflags"
e2a47f80 TC	38	lddlflags="-shared $lddlflags"
	39	cat >UU/cc.cbu <<'EOCBU'
	40	# gcc 4.6 doesn't support --whole-archive, but it's required for the
	41	# system gcc to build correctly, so check for it
	42	echo 'int f(void) { return 0; }' >try.c
	43	if ${cc:-cc} $cccdlflags -c try.c -otry.o 2>&1 &&
	44	${cc:-cc} --whole-archive $lddlflags try.o -otry.so 2>&1 ; then
	45	lddlflags="--whole-archive $lddlflags"
	46	fi
	47	rm try.c try.o try.so 2>/dev/null
	48	EOCBU
068ac78d	49	rpathflag="-Wl,-rpath,"
e36eebf2 JH	50	case "$osvers" in
	51	1.[0-5]*)
	52	#
	53	# Include the whole libgcc.a into the perl executable
	54	# so that certain symbols needed by loadable modules
	55	# built as C++ objects (__eh_alloc, __pure_virtual,
	56	# etc.) will always be defined.
	57	#
	58	ccdlflags="-Wl,-whole-archive -lgcc \
	59	-Wl,-no-whole-archive -Wl,-E $ccdlflags"
	60	;;
	61	*)
	62	ccdlflags="-Wl,-E $ccdlflags"
	63	;;
	64	esac
6195bde2	65	elif test -f /usr/libexec/ld.so; then
068ac78d	66	# a.out
c9ef717e MG	67	d_dlopen=$define
c9ef717e MG	68	d_dlerror=$define
c9ef717e	69	cccdlflags="-DPIC -fPIC $cccdlflags"
9f060c84	70	lddlflags="-Bshareable $lddlflags"
068ac78d	71	rpathflag="-R"
099685bc JH	72	else
099685bc JH	73	d_dlopen=$undef
068ac78d	74	rpathflag=
099685bc	75	fi
491527d0 GS	76	;;
491527d0 GS	77	esac
c9ef717e MG	78
	79	# netbsd had these but they don't really work as advertised, in the
	80	# versions listed below. if they are defined, then there isn't a
	81	# way to make perl call setuid() or setgid(). if they aren't, then
	82	# ($<, $>) = ($u, $u); will work (same for $(/$)). this is because
	83	# you can not change the real userid of a process under 4.4BSD.
099685bc	84	# netbsd fixed this in 1.3.2.
229e211d	85	case "$osvers" in
099685bc	86	0.9\|1.[012]\|1.3\|1.3.1)
4633a7c4 LW	87	d_setregid="$undef"
4633a7c4 LW	88	d_setreuid="$undef"
a0d0e21e LW	89	;;
a0d0e21e LW	90	esac
a22def3b	91	case "$osvers" in
54db7d57 CBW	92	0.8*)
	93	;;
	94	*)
a22def3b MB	95	d_getprotoent_r="$undef"
	96	d_getprotobyname_r="$undef"
	97	d_getprotobynumber_r="$undef"
	98	d_setprotoent_r="$undef"
	99	d_endprotoent_r="$undef"
	100	d_getservent_r="$undef"
	101	d_getservbyname_r="$undef"
	102	d_getservbyport_r="$undef"
	103	d_setservent_r="$undef"
	104	d_endservent_r="$undef"
54db7d57 CBW	105	d_gethostbyname_r="$undef"
	106	d_gethostbyaddr2_r="$undef"
	107	d_gethostbyaddr_r="$undef"
	108	d_sethostent_r="$undef"
	109	d_gethostent_r="$undef"
	110	d_endhostent_r="$undef"
84f2efb4 RGS	111	d_getprotoent_r_proto="0"
	112	d_getprotobyname_r_proto="0"
	113	d_getprotobynumber_r_proto="0"
	114	d_setprotoent_r_proto="0"
	115	d_endprotoent_r_proto="0"
	116	d_getservent_r_proto="0"
	117	d_getservbyname_r_proto="0"
	118	d_getservbyport_r_proto="0"
	119	d_setservent_r_proto="0"
	120	d_endservent_r_proto="0"
54db7d57 CBW	121	d_gethostbyname_r_proto="0"
	122	d_gethostbyaddr2_r_proto="0"
	123	d_gethostbyaddr_r_proto="0"
	124	d_sethostent_r_proto="0"
	125	d_endhostent_r_proto="0"
	126	d_gethostent_r_proto="0"
a22def3b MB	127	;;
a22def3b MB	128	esac
c4f23d77	129
434e0566 JH	130	# These are obsolete in any netbsd.
	131	d_setrgid="$undef"
	132	d_setruid="$undef"
	133
099685bc	134	# there's no problem with vfork.
900cf02d JH	135	usevfork=true
900cf02d JH	136
9a368ae6 JH	137	# This is there but in machine/ieeefp_h.
	138	ieeefp_h="define"
	139
a22def3b MB	140	# This script UU/usethreads.cbu will get 'called-back' by Configure
	141	# after it has prompted the user for whether to use threads.
	142	cat > UU/usethreads.cbu <<'EOCBU'
	143	case "$usethreads" in
	144	$define\|true\|[yY]*)
6195bde2	145	lpthread=
068ac78d JH	146	for xxx in pthread; do
	147	for yyy in $loclibpth $plibpth $glibpth dummy; do
	148	zzz=$yyy/lib$xxx.a
	149	if test -f "$zzz"; then
	150	lpthread=$xxx
6195bde2 JH	151	break;
6195bde2 JH	152	fi
068ac78d JH	153	zzz=$yyy/lib$xxx.so
	154	if test -f "$zzz"; then
	155	lpthread=$xxx
6195bde2 JH	156	break;
6195bde2 JH	157	fi
068ac78d JH	158	zzz=`ls $yyy/lib$xxx.so.* 2>/dev/null`
	159	if test "X$zzz" != X; then
	160	lpthread=$xxx
6195bde2 JH	161	break;
	162	fi
	163	done
	164	if test "X$lpthread" != X; then
	165	break;
	166	fi
	167	done
	168	if test "X$lpthread" != X; then
a22def3b MB	169	# Add -lpthread.
a22def3b MB	170	libswanted="$libswanted $lpthread"
6195bde2 JH	171	# There is no libc_r as of NetBSD 1.5.2, so no c -> c_r.
	172	# This will be revisited when NetBSD gains a native pthreads
	173	# implementation.
a22def3b	174	else
6195bde2	175	echo "$0: No POSIX threads library (-lpthread) found. " \
a22def3b MB	176	"You may want to install GNU pth. Aborting." >&4
	177	exit 1
	178	fi
6195bde2	179	unset lpthread
5d0b7876	180
dca46f05	181	# several reentrant functions are embedded in libc, but haven't
a22def3b MB	182	# been added to the header files yet. Let's hold off on using
	183	# them until they are a valid part of the API
	184	case "$osvers" in
	185	[012].*\|3.[0-1])
	186	d_getprotobyname_r=$undef
	187	d_getprotobynumber_r=$undef
	188	d_getprotoent_r=$undef
	189	d_getservbyname_r=$undef
	190	d_getservbyport_r=$undef
	191	d_getservent_r=$undef
	192	d_setprotoent_r=$undef
	193	d_setservent_r=$undef
	194	d_endprotoent_r=$undef
	195	d_endservent_r=$undef ;;
	196	esac
	197	;;
	198
	199	esac
0b196741	200	EOCBU
7b938c21	201
068ac78d JH	202	# Set sensible defaults for NetBSD: look for local software in
	203	# /usr/pkg (NetBSD Packages Collection) and in /usr/local.
	204	#
	205	loclibpth="/usr/pkg/lib /usr/local/lib"
	206	locincpth="/usr/pkg/include /usr/local/include"
	207	case "$rpathflag" in
	208	'')
	209	ldflags=
	210	;;
	211	*)
	212	ldflags=
	213	for yyy in $loclibpth; do
	214	ldflags="$ldflags $rpathflag$yyy"
	215	done
	216	;;
	217	esac
f42e9f90 JH	218
	219	case `uname -m` in
	220	alpha)
	221	echo 'int main() {}' > try.c
	222	gcc=`${cc:-cc} -v -c try.c 2>&1\|grep 'gcc version egcs-2'`
	223	case "$gcc" in
	224	'' \| "gcc version egcs-2.95."[3-9]*) ;; # 2.95.3 or better okay
	225	*) cat >&4 <<EOF
	226	***
	227	*** Your gcc ($gcc) is known to be
	228	*** too buggy on netbsd/alpha to compile Perl with optimization.
	229	*** It is suggested you install the lang/gcc package which should
	230	*** have at least gcc 2.95.3 which should work okay: use for example
	231	*** Configure -Dcc=/usr/pkg/gcc-2.95.3/bin/cc. You could also
	232	*** Configure -Doptimize=-O0 to compile Perl without any optimization
	233	*** but that is not recommended.
	234	***
	235	EOF
	236	exit 1
	237	;;
	238	esac
	239	rm -f try.*
	240	;;
	241	esac
	242
3332bd48 JH	243	# NetBSD/sparc 1.5.3/1.6.1 dumps core in the semid_ds test of Configure.
	244	case `uname -m` in
	245	sparc) d_semctl_semid_ds=undef ;;
	246	esac
	247
ceac08d3 CBW	248	# malloc wrap works
	249	case "$usemallocwrap" in
	250	'') usemallocwrap='define' ;;
	251	esac
	252
	253	# don't use perl malloc by default
	254	case "$usemymalloc" in
	255	'') usemymalloc=n ;;
	256	esac
184f90dc TC	257
	258	# NetBSD 6 defines the *at() functions in libc, but either doesn't
	259	# implement them, or implements them only for AT_FDCWD
	260	case "$osver" in
	261	[1-6].*)
	262	d_unlinkat="$undef"
	263	d_renameat="$undef"
	264	d_linkat="$undef"
	265	d_fchmodat="$undef"
	266	;;
	267	esac
286ba709 TC	268
	269	cat >UU/uselongdouble.cbu <<'EOCBU'
	270	# This script UU/uselongdouble.cbu will get 'called-back' by Configure
	271	# after it has prompted the user for whether to use long doubles.
	272	#
	273	# See https://github.com/Perl/perl5/issues/17853 and https://github.com/Perl/perl5/issues/17854
	274	case "$uselongdouble" in
	275	$define\|true\|[yY]*)
	276	cat >try.c <<\TRY
	277	#include <stdio.h>
	278	#include <math.h>
	279
	280	long double x = 1.0;
	281
	282	int main(int argc, char **argv) {
	283	double e1 = exp(1.0);
	284	/* as of NetBSD 9.0 expl() just calls exp(),
	285	Fail here if they're equal. */
	286	return expl(x) == (long double)e1;
	287	}
	288	TRY
	289	if $cc -o try $ccflags $ldflags try.c -lm && $run ./try; then
	290	echo "NetBSD seem to have fixed expl (and hopefully more)" >&4
	291	else
	292	cat <<EOM >&4
	293
	294	Warning! NetBSD's long double support is limited enough that it will cause
	295	test failures, and possibly build failures, and this doesn't appear to have
	296	been fixed in the release you're running.
	297
	298	EOM
	299	fi
	300	;;
	301	esac
	302	EOCBU