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Document UNTIE. Also tweak implementation to suppress the 'inner references'
[perl5.git] / hints / irix_6.sh
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85f483a2 1# hints/irix_6.sh
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2#
3# original from Krishna Sethuraman, krishna@sgi.com
4#
ba51d756 5# Modified Mon Jul 22 14:52:25 EDT 1996
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6# Andy Dougherty <doughera@lafcol.lafayette.edu>
7# with help from Dean Roehrich <roehrich@cray.com>.
8# cc -n32 update info from Krishna Sethuraman, krishna@sgi.com.
9# additional update from Scott Henry, scotth@sgi.com
f4cb4c40 10
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11# Futzed with by John Stoffel <jfs@fluent.com> on 4/24/1997
12# - assumes 'cc -n32' by default
13# - tries to check for various compiler versions and do the right
14# thing when it can
15# - warnings turned off (-n32 messages):
16# 1116 - non-void function should return a value
17# 1048 - cast between pointer-to-object and pointer-to-function
18# 1042 - operand types are incompatible
19
20# Tweaked by Chip Salzenberg <chip@perl.com> on 5/13/97
21# - don't assume 'cc -n32' if the n32 libm.so is missing
85f483a2 22
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23# Threaded by Jarkko Hietaniemi <jhi@iki.fi> on 11/18/97
24# - POSIX threads knowledge by IRIX version
25
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26# gcc-enabled by Kurt Starsinic <kstar@isinet.com> on 3/24/1998
27
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28# 64-bitty by Jarkko Hietaniemi on 9/1998
29
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30# Use sh Configure -Dcc='cc -n32' to try compiling with -n32.
31# or -Dcc='cc -n32 -mips3' (or -mips4) to force (non)portability
32# Don't bother with -n32 unless you have the 7.1 or later compilers.
33# But there's no quick and light-weight way to check in 6.2.
f4cb4c40 34
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35# NOTE: some IRIX cc versions, e.g. 7.3.1.1m (try cc -version) have
36# been known to have issues (coredumps) when compiling perl.c.
37# If you've used -OPT:fast_io=ON and this happens, try removing it.
38# If that fails, or you didn't use that, then try adjusting other
39# optimization options (-LNO, -INLINE, -O3 to -O2, etcetera).
40# The compiler bug has been reported to SGI.
41# -- Allen Smith <easmith@beatrice.rutgers.edu>
44e4f4cc 42
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43# Let's assume we want to use 'cc -n32' by default, unless the
44# necessary libm is missing (which has happened at least twice)
85f483a2 45case "$cc" in
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46'') case "$use64bitall" in
47 "$define"|true|[yY]*) test -f /usr/lib64/libm.so && cc='cc -64' ;;
48 *) test -f /usr/lib32/libm.so && cc='cc -n32' ;;
49 esac
50esac
2a3be124 51test -z "$cc" && cc=cc
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52
53case "$use64bitint" in
54$define|true|[yY]*)
55 case "`uname -r`" in
56 [1-5]*|6.[01])
57 cat >&4 <<EOM
58IRIX `uname -r` does not support 64-bit types.
59You should upgrade to at least IRIX 6.2.
60Cannot continue, aborting.
61EOM
62 exit 1
63 ;;
64 esac
65 ;;
66esac
67
68case "$use64bitall" in
69"$define"|true|[yY]*)
70 case "`uname -s`" in
71 IRIX)
72 cat >&4 <<EOM
73You cannot use -Duse64bitall in 32-bit IRIX, sorry.
74
75Cannot continue, aborting.
76EOM
77 exit 1
78 ;;
79 esac
80 ;;
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81esac
82
83# Check for which compiler we're using
84
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85case "$cc" in
86*"cc -n32"*)
85f483a2 87
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88 # If a library is requested to link against, make sure the
89 # objects in the library are of the same ABI we are compiling
90 # against. Albert Chin-A-Young <china@thewrittenword.com>
91 libscheck='case "$xxx" in
92*.a) /bin/ar p $xxx `/bin/ar t $xxx | /usr/bsd/head -1` >$$.o;
93 case "`/usr/bin/file $$.o`" in
94 *N32*) rm -f $$.o ;;
95 *) rm -f $$.o; xxx=/no/n32$xxx ;;
96 esac ;;
97*) case "`/usr/bin/file $xxx`" in
98 *N32*) ;;
99 *) xxx=/no/n32$xxx ;;
100 esac ;;
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101esac'
102
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103 # NOTE: -L/usr/lib32 -L/lib32 are automatically selected by the linker
104 ldflags=' -L/usr/local/lib32 -L/usr/local/lib'
105 cccdlflags=' '
106 # From: David Billinghurst <David.Billinghurst@riotinto.com.au>
107 # If you get complaints about so_locations then change the following
108 # line to something like:
109 # lddlflags="-n32 -shared -check_registry /usr/lib32/so_locations"
110 lddlflags="-n32 -shared"
111 libc='/usr/lib32/libc.so'
112 plibpth='/usr/lib32 /lib32 /usr/ccs/lib'
113 ;;
114*"cc -64")
115
116 loclibpth="$loclibpth /usr/lib64"
117 libscheck='case "`/usr/bin/file $xxx`" in
118*64-bit*) ;;
119*) xxx=/no/64-bit$xxx ;;
120esac'
121 # NOTE: -L/usr/lib64 -L/lib64 are automatically selected by the linker
122 ldflags=' -L/usr/local/lib64 -L/usr/local/lib'
123 cccdlflags=' '
124 # From: David Billinghurst <David.Billinghurst@riotinto.com.au>
125 # If you get complaints about so_locations then change the following
126 # line to something like:
127 # lddlflags="-64 -shared -check_registry /usr/lib64/so_locations"
128 lddlflags="-64 -shared"
129 libc='/usr/lib64/libc.so'
130 plibpth='/usr/lib64 /lib64 /usr/ccs/lib'
131 ;;
132*gcc*)
133 ccflags="$ccflags -D_BSD_TYPES -D_BSD_TIME -D_POSIX_C_SOURCE"
134 optimize="-O3"
135 usenm='undef'
136 case "`uname -s`" in
137 # Without the -mabi=64 gcc in 64-bit IRIX has problems passing
138 # and returning small structures. This affects inet_*() and semctl().
139 # See http://reality.sgi.com/ariel/freeware/gcc-2.8.1-notes.html
140 # for more information. Reported by Lionel Cons <lionel.cons@cern.ch>.
141 IRIX64) ccflags="$ccflags -mabi=64"
142 ldflags="$ldflags -mabi=64 -L/usr/lib64"
143 lddlflags="$lddlflags -mabi=64"
144 ;;
145 *) ccflags="$ccflags -DIRIX32_SEMUN_BROKEN_BY_GCC"
146 ;;
147 esac
148 ;;
149*)
150 # this is needed to force the old-32 paths
151 # since the system default can be changed.
152 ccflags="$ccflags -32 -D_BSD_TYPES -D_BSD_TIME -Olimit 3100"
153 optimize='-O'
154 ;;
155esac
156
157# Settings common to both native compiler modes.
158case "$cc" in
159*"cc -n32"|*"cc -64")
160 ld=$cc
161
162 # perl's malloc can return improperly aligned buffer
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163 # which (under 5.6.0RC1) leads into really bizarre bus errors
164 # and freak test failures (lib/safe1 #18, for example),
165 # even more so with -Duse64bitall: for example lib/io_linenumtb.
166 # fails under the harness but succeeds when run separately,
167 # under make test pragma/warnings #98 fails, and lib/io_dir
168 # apparently coredumps (the last two don't happen under
169 # the harness. Helmut Jarausch is seeing bus errors from
170 # miniperl, as was Scott Henry with snapshots from just before
171 # the RC1. --jhi
172 usemymalloc='undef'
173#malloc_cflags='ccflags="-DSTRICT_ALIGNMENT $ccflags"'
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174
175 nm_opt='-p'
176 nm_so_opt='-p'
177
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178 # Perl 5.004_57 introduced new qsort code into pp_ctl.c that
179 # makes IRIX cc prior to 7.2.1 to emit bad code.
180 # so some serious hackery follows to set pp_ctl flags correctly.
181
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182 # Check for which version of the compiler we're running
183 case "`$cc -version 2>&1`" in
184 *7.0*) # Mongoose 7.0
49c3559d 185 ccflags="$ccflags -D_BSD_TYPES -D_BSD_TIME -woff 1009,1042,1048,1110,1116,1174,1184,1552 -OPT:Olimit=0"
589615b8 186 optimize='none'
85f483a2 187 ;;
cd25c765 188 *7.1*|*7.2|*7.20) # Mongoose 7.1+
49c3559d 189 ccflags="$ccflags -D_BSD_TYPES -D_BSD_TIME -woff 1009,1110,1174,1184,1552 -OPT:Olimit=0"
589615b8 190 optimize='-O3'
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191# This is a temporary fix for 5.005.
192# Leave pp_ctl_cflags line at left margin for Configure. See
193# hints/README.hints, especially the section
194# =head2 Propagating variables to config.sh
195pp_ctl_cflags='optimize=-O'
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196 ;;
197 *7.*) # Mongoose 7.2.1+
49c3559d 198 ccflags="$ccflags -D_BSD_TYPES -D_BSD_TIME -woff 1009,1110,1174,1184,1552 -OPT:Olimit=0:space=ON"
589615b8 199 optimize='-O3'
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200 ;;
201 *6.2*) # Ragnarok 6.2
49c3559d 202 ccflags="$ccflags -D_BSD_TYPES -D_BSD_TIME -woff 1009,1110,1174,1184,1552"
589615b8 203 optimize='none'
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204 ;;
205 *) # Be safe and not optimize
49c3559d 206 ccflags="$ccflags -D_BSD_TYPES -D_BSD_TIME -woff 1009,1110,1174,1184,1552 -OPT:Olimit=0"
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207 optimize='none'
208 ;;
209 esac
210
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211# this is to accommodate the 'modules' capability of the
212# 7.2 MIPSPro compilers, which allows for the compilers to be installed
213# in a nondefault location. Almost everything works as expected, but
214# /usr/include isn't caught properly. Hence see the /usr/include/pthread.h
215# change below to include TOOLROOT (a modules environment variable),
216# and the following code. Additional
217# code to accommodate the 'modules' environment should probably be added
218# here if possible, or be inserted as a ${TOOLROOT} reference before
219# absolute paths (again, see the pthread.h change below).
220# -- krishna@sgi.com, 8/23/98
221
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222 if [ "X${TOOLROOT}" != "X" ]; then
223 # we cant set cppflags because it gets overwritten
224 # we dont actually need $TOOLROOT/usr/include on the cc line cuz the
225 # modules functionality already includes it but
226 # XXX - how do I change cppflags in the hints file?
227 ccflags="$ccflags -I${TOOLROOT}/usr/include"
9ea370a7 228 usrinc="${TOOLROOT}/usr/include"
a3489f11 229 fi
9ea370a7 230
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231 ;;
232esac
c43fed53 233
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234# Don't groan about unused libraries.
235ldflags="$ldflags -Wl,-woff,84"
236
1381c0fe 237# workaround for an optimizer bug
ea437474 238case "`$cc -version 2>&1`" in
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239*7.2.*) op_cflags='optimize=-O1'; opmini_cflags='optimize=-O1' ;;
240*7.3.1.*) op_cflags='optimize=-O2'; opmini_cflags='optimize=-O2' ;;
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241esac
242
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243# We don't want these libraries.
244# Socket networking is in libc, these are not installed by default,
245# and just slow perl down. (scotth@sgi.com)
ecfc5424 246set `echo X "$libswanted "|sed -e 's/ socket / /' -e 's/ nsl / /' -e 's/ dl / /'`
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247shift
248libswanted="$*"
e8c10df3 249
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250# Irix 6.5.6 seems to have a broken header <sys/mode.h>
251# don't include that (it doesn't contain S_IFMT, S_IFREG, et al)
252
253i_sysmode="$undef"
254
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255# I have conflicting reports about the sun, crypt, bsd, and PW
256# libraries on Irix 6.2.
257#
258# One user rerports:
259# Don't need sun crypt bsd PW under 6.2. You *may* need to link
260# with these if you want to run perl built under 6.2 on a 5.3 machine
261# (I haven't checked)
ecfc5424 262#
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263# Another user reported that if he included those libraries, a large number
264# of the tests failed (approx. 20-25) and he would get a core dump. To
265# make things worse, test results were inconsistent, i.e., some of the
266# tests would pass some times and fail at other times.
267# The safest thing to do seems to be to eliminate them.
268#
269# Actually, the only libs that you want are '-lm'. Everything else
270# you need is in libc. You do also need '-lbsd' if you choose not
271# to use the -D_BSD_* defines. Note that as of 6.2 the only
272# difference between '-lmalloc' and '-lc' malloc is the debugging
f5a8bab6 273# and control calls, which aren't used by perl. -- scotth@sgi.com
f4cb4c40 274
f5a8bab6 275set `echo X "$libswanted "|sed -e 's/ sun / /' -e 's/ crypt / /' -e 's/ bsd / /' -e 's/ PW / /' -e 's/ malloc / /'`
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276shift
277libswanted="$*"
eb1cfdd6 278
de6124c8 279cat > UU/usethreads.cbu <<'EOCBU'
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280# This script UU/usethreads.cbu will get 'called-back' by Configure
281# after it has prompted the user for whether to use threads.
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282case "$usethreads" in
283$define|true|[yY]*)
284 if test ! -f ${TOOLROOT}/usr/include/pthread.h -o ! -f /usr/lib/libpthread.so; then
285 case "`uname -r`" in
286 [1-5].*|6.[01])
287 cat >&4 <<EOM
288IRIX `uname -r` does not support POSIX threads.
289You should upgrade to at least IRIX 6.2 with pthread patches.
290EOM
291 ;;
292 6.2)
293 cat >&4 <<EOM
294IRIX 6.2 can have the POSIX threads.
7162771d 295However, the following IRIX patches (or their replacements) MUST be installed:
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296 1404 Irix 6.2 Posix 1003.1b man pages
297 1645 IRIX 6.2 & 6.3 POSIX header file updates
298 2000 Irix 6.2 Posix 1003.1b support modules
299 2254 Pthread library fixes
300 2401 6.2 all platform kernel rollup
301IMPORTANT:
302 Without patch 2401, a kernel bug in IRIX 6.2 will
303 cause your machine to panic and crash when running
304 threaded perl. IRIX 6.3 and up should be OK.
305EOM
306 ;;
307 [67].*)
308 cat >&4 <<EOM
309IRIX `uname -r` should have the POSIX threads.
310But, somehow, you do not seem to have them installed.
311EOM
312 ;;
313 esac
314 cat >&4 <<EOM
315Cannot continue, aborting.
316EOM
317 exit 1
318 fi
319 set `echo X "$libswanted "| sed -e 's/ c / pthread /'`
320 ld="${cc:-cc}"
321 shift
322 libswanted="$*"
323
324 usemymalloc='n'
325 ;;
326esac
327EOCBU
328
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329# The -n32 makes off_t to be 8 bytes, so we should have largefileness.
330