xref: /openbsd-src/gnu/usr.bin/perl/hints/netbsd.sh (revision 50b7afb2c2c0993b0894d4e34bf857cb13ed9c80) 
1# hints/netbsd.sh
2#
3# Please check with packages@netbsd.org before making modifications
4# to this file.
5
6case "$archname" in
7'')
8    archname=`uname -m`-${osname}
9    ;;
10esac
11
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#
17case "$osvers" in
180.9|0.8*)
19	usedl="$undef"
20	;;
21*)
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
33	if test -f /usr/libexec/ld.elf_so; then
34		# ELF
35		d_dlopen=$define
36		d_dlerror=$define
37		cccdlflags="-DPIC -fPIC $cccdlflags"
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
42echo 'int f(void) { return 0; }' >try.c
43if ${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 $lddlflags"
46fi
47rm try.c try.o try.so 2>/dev/null
48EOCBU
49		rpathflag="-Wl,-rpath,"
50		case "$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 $ccdlflags"
63			;;
64		esac
65	elif test -f /usr/libexec/ld.so; then
66		# a.out
67		d_dlopen=$define
68		d_dlerror=$define
69		cccdlflags="-DPIC -fPIC $cccdlflags"
70		lddlflags="-Bshareable $lddlflags"
71		rpathflag="-R"
72	else
73		d_dlopen=$undef
74		rpathflag=
75	fi
76	;;
77esac
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.
84# netbsd fixed this in 1.3.2.
85case "$osvers" in
860.9*|1.[012]*|1.3|1.3.1)
87	d_setregid="$undef"
88	d_setreuid="$undef"
89	;;
90esac
91case "$osvers" in
920.9*|1.*|2.*|3.*|4.*|5.*|6.*)
93	d_getprotoent_r="$undef"
94	d_getprotobyname_r="$undef"
95	d_getprotobynumber_r="$undef"
96	d_setprotoent_r="$undef"
97	d_endprotoent_r="$undef"
98	d_getservent_r="$undef"
99	d_getservbyname_r="$undef"
100	d_getservbyport_r="$undef"
101	d_setservent_r="$undef"
102	d_endservent_r="$undef"
103	d_getprotoent_r_proto="0"
104	d_getprotobyname_r_proto="0"
105	d_getprotobynumber_r_proto="0"
106	d_setprotoent_r_proto="0"
107	d_endprotoent_r_proto="0"
108	d_getservent_r_proto="0"
109	d_getservbyname_r_proto="0"
110	d_getservbyport_r_proto="0"
111	d_setservent_r_proto="0"
112	d_endservent_r_proto="0"
113	;;
114esac
115
116# These are obsolete in any netbsd.
117d_setrgid="$undef"
118d_setruid="$undef"
119
120# there's no problem with vfork.
121usevfork=true
122
123# This is there but in machine/ieeefp_h.
124ieeefp_h="define"
125
126# This script UU/usethreads.cbu will get 'called-back' by Configure
127# after it has prompted the user for whether to use threads.
128cat > UU/usethreads.cbu <<'EOCBU'
129case "$usethreads" in
130$define|true|[yY]*)
131	lpthread=
132	for xxx in pthread; do
133		for yyy in $loclibpth $plibpth $glibpth dummy; do
134			zzz=$yyy/lib$xxx.a
135			if test -f "$zzz"; then
136				lpthread=$xxx
137				break;
138			fi
139			zzz=$yyy/lib$xxx.so
140			if test -f "$zzz"; then
141				lpthread=$xxx
142				break;
143			fi
144			zzz=`ls $yyy/lib$xxx.so.* 2>/dev/null`
145			if test "X$zzz" != X; then
146				lpthread=$xxx
147				break;
148			fi
149		done
150		if test "X$lpthread" != X; then
151			break;
152		fi
153	done
154	if test "X$lpthread" != X; then
155		# Add -lpthread.
156		libswanted="$libswanted $lpthread"
157		# There is no libc_r as of NetBSD 1.5.2, so no c -> c_r.
158		# This will be revisited when NetBSD gains a native pthreads
159		# implementation.
160	else
161		echo "$0: No POSIX threads library (-lpthread) found.  " \
162		     "You may want to install GNU pth.  Aborting." >&4
163		exit 1
164	fi
165	unset lpthread
166
167	# several reentrant functions are embedded in libc, but haven't
168	# been added to the header files yet.  Let's hold off on using
169	# them until they are a valid part of the API
170	case "$osvers" in
171	[012].*|3.[0-1])
172		d_getprotobyname_r=$undef
173		d_getprotobynumber_r=$undef
174		d_getprotoent_r=$undef
175		d_getservbyname_r=$undef
176		d_getservbyport_r=$undef
177		d_getservent_r=$undef
178		d_setprotoent_r=$undef
179		d_setservent_r=$undef
180		d_endprotoent_r=$undef
181		d_endservent_r=$undef ;;
182	esac
183	;;
184
185esac
186EOCBU
187
188# Set sensible defaults for NetBSD: look for local software in
189# /usr/pkg (NetBSD Packages Collection) and in /usr/local.
190#
191loclibpth="/usr/pkg/lib /usr/local/lib"
192locincpth="/usr/pkg/include /usr/local/include"
193case "$rpathflag" in
194'')
195	ldflags=
196	;;
197*)
198	ldflags=
199	for yyy in $loclibpth; do
200		ldflags="$ldflags $rpathflag$yyy"
201	done
202	;;
203esac
204
205case `uname -m` in
206alpha)
207    echo 'int main() {}' > try.c
208    gcc=`${cc:-cc} -v -c try.c 2>&1|grep 'gcc version egcs-2'`
209    case "$gcc" in
210    '' | "gcc version egcs-2.95."[3-9]*) ;; # 2.95.3 or better okay
211    *)	cat >&4 <<EOF
212***
213*** Your gcc ($gcc) is known to be
214*** too buggy on netbsd/alpha to compile Perl with optimization.
215*** It is suggested you install the lang/gcc package which should
216*** have at least gcc 2.95.3 which should work okay: use for example
217*** Configure -Dcc=/usr/pkg/gcc-2.95.3/bin/cc.  You could also
218*** Configure -Doptimize=-O0 to compile Perl without any optimization
219*** but that is not recommended.
220***
221EOF
222	exit 1
223	;;
224    esac
225    rm -f try.*
226    ;;
227esac
228
229# NetBSD/sparc 1.5.3/1.6.1 dumps core in the semid_ds test of Configure.
230case `uname -m` in
231sparc) d_semctl_semid_ds=undef ;;
232esac
233
234# malloc wrap works
235case "$usemallocwrap" in
236'') usemallocwrap='define' ;;
237esac
238
239# don't use perl malloc by default
240case "$usemymalloc" in
241'') usemymalloc=n ;;
242esac
243