Commit | Line | Data |
---|---|---|
0f297bd8 | 1 | #! /bin/bash |
fec02dd3 | 2 | # machten.sh |
0f297bd8 GS |
3 | # This is for MachTen 4.1.4. It might work on other versions and variants |
4 | # too. If it doesn't, tell me, and I'll try to fix it -- domo@computer.org | |
db90f03e | 5 | # |
a55e790a DD |
6 | # Users of earlier MachTen versions might need a fixed tr from ftp.tenon.com. |
7 | # This should be described in the MachTen release notes. | |
db90f03e | 8 | # |
9 | # MachTen 2.x has its own hint file. | |
10 | # | |
0f297bd8 | 11 | # The original version of this file was put together by Andy Dougherty |
db90f03e | 12 | # <doughera@lafcol.lafayette.edu> based on comments from lots of |
13 | # folks, especially | |
14 | # Mark Pease <peasem@primenet.com> | |
15 | # Martijn Koster <m.koster@webcrawler.com> | |
16 | # Richard Yeh <rcyeh@cco.caltech.edu> | |
baf67fda | 17 | # |
2f4b4800 DD |
18 | # Deny system's false claims to support mmap() and munmap(); note |
19 | # also that Sys V IPC (re)disabled by jhi due to continuing inadequacy | |
20 | # -- Dominic Dunlop <domo@computer.org> 001111 | |
0f297bd8 GS |
21 | # Remove dynamic loading libraries from search; enable SysV IPC with |
22 | # MachTen 4.1.4 and above; define SYSTEM_ALIGN_BYTES for old MT versions | |
23 | # -- Dominic Dunlop <domo@computer.org> 000224 | |
7ecd88f1 DD |
24 | # Disable shadow password file access: MT 4.1.1 has necessary library |
25 | # functions, but not header file (or documentation) | |
26 | # -- Dominic Dunlop <domo@computer.org> 990804 | |
e060872b DD |
27 | # For now, explicitly disable dynamic loading -- MT 4.1.1 has it, |
28 | # but these hints do not yet support it. | |
29 | # Define NOTEDEF_MACHTEN to undo gratuitous Tenon hack to signal.h. | |
30 | # -- Dominic Dunlop <domo@computer.org> 9800802 | |
911efb05 DD |
31 | # Completely disable SysV IPC pending more complete support from Tenon |
32 | # -- Dominic Dunlop <domo@computer.org> 980712 | |
38ac2dc8 DD |
33 | # Use vfork and perl's malloc by default |
34 | # -- Dominic Dunlop <domo@computer.org> 980630 | |
83e898de DD |
35 | # Raise perl's stack size again; cut down reg_infty; document |
36 | # -- Dominic Dunlop <domo@computer.org> 980619 | |
2ff233fa | 37 | # Use of semctl() can crash system: disable -- Dominic Dunlop 980506 |
da9788ee DD |
38 | # Raise stack size further; slight tweaks to accomodate MT 4.1 |
39 | # -- Dominic Dunlop <domo@computer.org> 980211 | |
a55e790a | 40 | # Raise perl's stack size -- Dominic Dunlop <domo@tcp.ip.lu> 970922 |
44a8e56a | 41 | # Reinstate sigsetjmp iff version is 4.0.3 or greater; use nm |
42 | # (assumes Configure change); prune libswanted -- Dominic Dunlop 970113 | |
43 | # Warn about test failure due to old Berkeley db -- Dominic Dunlop 970105 | |
55497cff | 44 | # Do not use perl's malloc; SysV IPC OK -- Neil Cutcliffe, Tenon 961030 |
45 | # File::Find's use of link count disabled by Dominic Dunlop 960528 | |
46 | # Perl's use of sigsetjmp etc. disabled by Dominic Dunlop 960521 | |
db90f03e | 47 | # |
fec02dd3 AD |
48 | # Comments, questions, and improvements welcome! |
49 | # | |
7ecd88f1 DD |
50 | # MachTen 4.1.1's support for shadow password file access is incomplete: |
51 | # disable its use completely. | |
7ecd88f1 | 52 | d_getspnam=${d_getspnam:-undef} |
7ecd88f1 | 53 | |
e060872b | 54 | # MachTen 4.1.1 does support dynamic loading, but perl doesn't |
db90f03e | 55 | # know how to use it yet. |
e060872b DD |
56 | usedl=${usedl:-undef} |
57 | ||
58 | # MachTen 4.1.1 may have an unhelpful hack in /usr/include/signal.h. | |
59 | # Undo it if so. | |
60 | if grep NOTDEF_MACHTEN /usr/include/signal.h > /dev/null | |
61 | then | |
62 | ccflags="$ccflags -DNOTDEF_MACHTEN" | |
63 | fi | |
55497cff | 64 | |
65 | # Power MachTen is a real memory system and its standard malloc | |
66 | # has been optimized for this. Using this malloc instead of Perl's | |
38ac2dc8 DD |
67 | # malloc may result in significant memory savings. In particular, |
68 | # unlike most UNIX memory allocation subsystems, MachTen's free() | |
69 | # really does return unneeded process data memory to the system. | |
70 | # However, MachTen's malloc() is woefully slow -- maybe 100 times | |
71 | # slower than perl's own, so perl's own is usually the better | |
72 | # choice. In order to use perl's malloc(), the sbrk() system call | |
73 | # must be simulated using MachTen's malloc(). See malloc.c for | |
74 | # precise details of how this is achieved. Recent improvements | |
75 | # to perl's malloc() currently crash MachTen, and so are disabled | |
76 | # by -DPLAIN_MALLOC and -DNO_FANCY_MALLOC. | |
77 | usemymalloc=${usemymalloc:-y} | |
78 | ||
0f297bd8 GS |
79 | # Older versions of MachTen malloc() data on a two-byte boundary, which |
80 | # works, but slows down operations on long, float and double data. | |
81 | # Perl's malloc() can compensate if SYSTEM_ALLOC_ALIGNMENT is suitably | |
82 | # defined. | |
83 | if expr "$osvers" \< "4.1" >/dev/null | |
84 | then | |
85 | system_alloc_alignment=" -DSYSTEM_ALLOC_ALIGNMENT=2" | |
86 | fi | |
38ac2dc8 | 87 | # Do not wrap the following long line |
0f297bd8 | 88 | malloc_cflags='ccflags="$ccflags -DPLAIN_MALLOC -DNO_FANCY_MALLOC -DUSE_PERL_SBRK$system_alloc_alignment"' |
38ac2dc8 | 89 | |
38ac2dc8 DD |
90 | # When MachTen does a fork(), it immediately copies the whole of |
91 | # the parent process' data space for the child. This can be | |
92 | # expensive. Using vfork() where appropriate avoids this cost. | |
93 | d_vfork=${d_vfork:-define} | |
94 | ||
95 | # Specify a high level of optimization (-O3 wouldn't do much more) | |
96 | optimize=${optimize:--O2 -fomit-frame-pointer} | |
c07a80fd | 97 | |
44a8e56a | 98 | # Make symbol table listings les voluminous |
99 | nmopts=-gp | |
c07a80fd | 100 | |
83e898de DD |
101 | # Set reg_infty -- the maximum allowable number of repeats in regular |
102 | # expressions such as /a{1,$max_repeats}/, and the maximum number of | |
103 | # times /a*/ will match. Setting this too high without having a stack | |
104 | # large enough to accommodate deep recursion in the regular expression | |
105 | # engine allows perl to crash your Mac due to stack overrun if it | |
106 | # encounters a pathological regular expression. The default is a | |
107 | # compromise between capability and required stack size (see below). | |
108 | # You may override the default value from the Configure command-line | |
109 | # like this: | |
110 | # | |
111 | # Configure -Dreg_infty=16368 ... | |
112 | ||
113 | reg_infty=${reg_infty:-2047} | |
114 | ||
115 | # If you want to have many perl processes active simultaneously -- | |
116 | # processing CGI forms -- for example, you should opt for a small stack. | |
117 | # For safety, you should set reg_infty no larger than the corresponding | |
118 | # value given in this table: | |
119 | # | |
120 | # Stack size reg_infty value supported | |
121 | # ---------- ------------------------- | |
122 | # 128k 2**8-1 (256) | |
123 | # 256k 2**9-1 (511) | |
124 | # 512k 2**10-1 (1023) | |
125 | # 1M 2**11-1 (2047) | |
126 | # ... | |
127 | # 16M 2**15-1 (32767) (perl's default value) | |
128 | ||
129 | # This script selects a safe stack size based on the value of reg_infty | |
130 | # specified above. However, you may choose to take a risk and set | |
131 | # stack size lower: pathological regular expressions are rare in real-world | |
132 | # programs. But be aware that, if perl does encounter one, it WILL | |
133 | # crash your system. Do not set stack size lower than 96k unless | |
134 | # you want perl's installation tests ( make test ) to crash your system. | |
135 | # | |
136 | # You may override the default value from the Configure command-line | |
137 | # by specifying the required size in kilobytes like this: | |
138 | # | |
139 | # Configure -Dstack_size=96 | |
140 | ||
141 | if [ "X$stack_size" = 'X' ] | |
142 | then | |
143 | stack_size=128 | |
144 | X=`expr $reg_infty / 256` | |
145 | ||
146 | while [ $X -gt 0 ] | |
147 | do | |
148 | X=`expr $X / 2` | |
149 | stack_size=`expr $stack_size \* 2` | |
150 | done | |
38ac2dc8 | 151 | X=`expr $stack_size \* 1024` |
83e898de DD |
152 | fi |
153 | ||
83e898de DD |
154 | ldflags="$ldflags -Xlstack=$X" |
155 | ccflags="$ccflags -DREG_INFTY=$reg_infty" | |
a55e790a | 156 | |
55497cff | 157 | # Install in /usr/local by default |
158 | prefix='/usr/local' | |
159 | ||
db90f03e | 160 | # At least on PowerMac, doubles must be aligned on 8 byte boundaries. |
161 | # I don't know if this is true for all MachTen systems, or how to | |
162 | # determine this automatically. | |
163 | alignbytes=8 | |
baf67fda | 164 | |
44a8e56a | 165 | # 4.0.2 and earlier had a problem with perl's use of sigsetjmp and |
baf67fda | 166 | # friends. Use setjmp and friends instead. |
44a8e56a | 167 | expr "$osvers" \< "4.0.3" > /dev/null && d_sigsetjmp='undef' |
168 | ||
0f297bd8 | 169 | # System V IPC before MachTen 4.1.4 is incomplete (missing msg function |
911efb05 | 170 | # prototypes, no ftok()), buggy (semctl(.., .., IPC_STATUS, ..) hangs |
0f297bd8 GS |
171 | # system), and undocumented. Claim it's not there at all before 4.1.4. |
172 | if expr "$osvers" \< "4.1.4" >/dev/null | |
173 | then | |
911efb05 DD |
174 | d_msg=${d_msg:-undef} |
175 | d_sem=${d_sem:-undef} | |
176 | d_shm=${d_shm:-undef} | |
0f297bd8 | 177 | fi |
2ff233fa | 178 | |
c6c38f61 GS |
179 | |
180 | # As of MachTen 4.1.4 the msg* and shm* are in libc but unimplemented | |
181 | # (an attempt to use them causes a runtime error) | |
182 | # XXX Configure probe for really functional msg*() is needed XXX | |
183 | # XXX Configure probe for really functional shm*() is needed XXX | |
184 | if test "$d_msg" = ""; then | |
185 | d_msgget=${d_msgget:-undef} | |
186 | d_msgctl=${d_msgctl:-undef} | |
187 | d_msgsnd=${d_msgsnd:-undef} | |
188 | d_msgrcv=${d_msgrcv:-undef} | |
189 | case "$d_msgget$d_msgsnd$d_msgctl$d_msgrcv" in | |
190 | *"undef"*) d_msg="$undef" ;; | |
191 | esac | |
192 | fi | |
193 | if test "$d_shm" = ""; then | |
194 | d_shmat=${d_shmat:-undef} | |
195 | d_shmdt=${d_shmdt:-undef} | |
196 | d_shmget=${d_shmget:-undef} | |
197 | d_shmctl=${d_shmctl:-undef} | |
198 | case "$d_shmat$d_shmctl$d_shmdt$d_shmget" in | |
199 | *"undef"*) d_shm="$undef" ;; | |
200 | esac | |
201 | fi | |
202 | ||
2f4b4800 DD |
203 | # MachTen has stubs for mmap and munmap(), but they just result in the |
204 | # caller being killed on the grounds of "Bad system call" | |
205 | d_mmap=${d_mmap:-undef} | |
206 | d_munmap=${d_munmap:-undef} | |
207 | ||
44a8e56a | 208 | # Get rid of some extra libs which it takes Configure a tediously |
0f297bd8 | 209 | # long time never to find on MachTen, or which break perl |
44a8e56a | 210 | set `echo X "$libswanted "|sed -e 's/ net / /' -e 's/ socket / /' \ |
211 | -e 's/ inet / /' -e 's/ nsl / /' -e 's/ nm / /' -e 's/ malloc / /' \ | |
212 | -e 's/ ld / /' -e 's/ sun / /' -e 's/ posix / /' \ | |
0f297bd8 | 213 | -e 's/ cposix / /' -e 's/ crypt / /' -e 's/ dl / /' -e 's/ dld / /' \ |
44a8e56a | 214 | -e 's/ ucb / /' -e 's/ bsd / /' -e 's/ BSD / /' -e 's/ PW / /'` |
215 | shift | |
216 | libswanted="$*" | |
baf67fda | 217 | |
da9788ee DD |
218 | # While link counts on MachTen 4.1's fast file systems work correctly, |
219 | # on Macintosh Heirarchical File Systems, (and on HFS+) | |
baf67fda | 220 | # MachTen always reports ony two links to directories, even if they |
221 | # contain subdirectories. Consequently, we use this variable to stop | |
222 | # File::Find using the link count to determine whether there are | |
223 | # subdirectories to be searched. This will generate a harmless message: | |
224 | # Hmm...You had some extra variables I don't know about...I'll try to keep 'em. | |
225 | # Propagating recommended variable dont_use_nlink | |
226 | dont_use_nlink=define | |
227 | ||
83e898de | 228 | cat <<EOM >&4 |
baf67fda | 229 | |
2ff233fa DD |
230 | During Configure, you may see the message |
231 | ||
232 | *** WHOA THERE!!! *** | |
911efb05 | 233 | The recommended value for \$d_msg on this machine was "undef"! |
2ff233fa DD |
234 | Keep the recommended value? [y] |
235 | ||
911efb05 DD |
236 | as well as similar messages concerning \$d_sem and \$d_shm. Select the |
237 | default answers: MachTen 4.1 appears to provide System V IPC support, | |
238 | but it is incomplete and buggy: perl should be built without it. | |
2f4b4800 DD |
239 | Similar considerations apply to memory mapping of files, controlled |
240 | by \$d_mmap and \$d_munmap. | |
baf67fda | 241 | |
38ac2dc8 DD |
242 | Similarly, when you see |
243 | ||
244 | *** WHOA THERE!!! *** | |
245 | The recommended value for \$d_vfork on this machine was "define"! | |
246 | Keep the recommended value? [y] | |
247 | ||
248 | select the default answer: vfork() works, and avoids expensive data | |
249 | copying. | |
250 | ||
d722968f JH |
251 | You may also see "WHOA THERE!!!" messages concerning \$d_getspnam. |
252 | Select the default answer: MachTen's support for shadow password | |
253 | file access is incomplete, and should not be used. | |
7ecd88f1 | 254 | |
baf67fda | 255 | At the end of Configure, you will see a harmless message |
256 | ||
257 | Hmm...You had some extra variables I don't know about...I'll try to keep 'em. | |
258 | Propagating recommended variable dont_use_nlink | |
44a8e56a | 259 | Propagating recommended variable nmopts |
38ac2dc8 | 260 | Propagating recommended variable malloc_cflags... |
83e898de | 261 | Propagating recommended variable reg_infty |
0f297bd8 | 262 | Propagating recommended variable system_alloc_alignment |
44a8e56a | 263 | Read the File::Find documentation for more information about dont_use_nlink |
baf67fda | 264 | |
83e898de DD |
265 | Your perl will be built with a stack size of ${stack_size}k and a regular |
266 | expression repeat count limit of $reg_infty. If you want alternative | |
267 | values, see the file hints/machten.sh for advice on how to change them. | |
268 | ||
2ff233fa DD |
269 | Tests |
270 | io/fs test 4 and | |
271 | op/stat test 3 | |
272 | may fail since MachTen may not return a useful nlinks field to stat | |
273 | on directories. | |
274 | ||
baf67fda | 275 | EOM |
2ff233fa DD |
276 | expr "$osvers" \< "4.1" >/dev/null && test -r ./broken-db.msg && \ |
277 | . ./broken-db.msg | |
83e898de DD |
278 | |
279 | unset stack_size X |