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