2 # This is for MachTen 4.0.3. It might work on other versions and variants too.
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.
7 # MachTen 2.x has its own hint file.
9 # This file has been put together by Andy Dougherty
10 # <doughera@lafcol.lafayette.edu> based on comments from lots of
12 # Mark Pease <peasem@primenet.com>
13 # Martijn Koster <m.koster@webcrawler.com>
14 # Richard Yeh <rcyeh@cco.caltech.edu>
16 # Disable shadow password file access: MT 4.1.1 has necessary library
17 # functions, but not header file (or documentation)
18 # -- Dominic Dunlop <domo@computer.org> 990804
19 # For now, explicitly disable dynamic loading -- MT 4.1.1 has it,
20 # but these hints do not yet support it.
21 # Define NOTEDEF_MACHTEN to undo gratuitous Tenon hack to signal.h.
22 # -- Dominic Dunlop <domo@computer.org> 9800802
23 # Completely disable SysV IPC pending more complete support from Tenon
24 # -- Dominic Dunlop <domo@computer.org> 980712
25 # Use vfork and perl's malloc by default
26 # -- Dominic Dunlop <domo@computer.org> 980630
27 # Raise perl's stack size again; cut down reg_infty; document
28 # -- Dominic Dunlop <domo@computer.org> 980619
29 # Use of semctl() can crash system: disable -- Dominic Dunlop 980506
30 # Raise stack size further; slight tweaks to accomodate MT 4.1
31 # -- Dominic Dunlop <domo@computer.org> 980211
32 # Raise perl's stack size -- Dominic Dunlop <domo@tcp.ip.lu> 970922
33 # Reinstate sigsetjmp iff version is 4.0.3 or greater; use nm
34 # (assumes Configure change); prune libswanted -- Dominic Dunlop 970113
35 # Warn about test failure due to old Berkeley db -- Dominic Dunlop 970105
36 # Do not use perl's malloc; SysV IPC OK -- Neil Cutcliffe, Tenon 961030
37 # File::Find's use of link count disabled by Dominic Dunlop 960528
38 # Perl's use of sigsetjmp etc. disabled by Dominic Dunlop 960521
40 # Comments, questions, and improvements welcome!
42 # MachTen 4.1.1's support for shadow password file access is incomplete:
43 # disable its use completely.
44 d_endspent=${d_endspent:-undef}
45 d_getspent=${d_getspent:-undef}
46 d_getspnam=${d_getspnam:-undef}
47 d_setspent=${d_setspent:-undef}
49 # MachTen 4.1.1 does support dynamic loading, but perl doesn't
50 # know how to use it yet.
53 # MachTen 4.1.1 may have an unhelpful hack in /usr/include/signal.h.
55 if grep NOTDEF_MACHTEN /usr/include/signal.h > /dev/null
57 ccflags="$ccflags -DNOTDEF_MACHTEN"
60 # Power MachTen is a real memory system and its standard malloc
61 # has been optimized for this. Using this malloc instead of Perl's
62 # malloc may result in significant memory savings. In particular,
63 # unlike most UNIX memory allocation subsystems, MachTen's free()
64 # really does return unneeded process data memory to the system.
65 # However, MachTen's malloc() is woefully slow -- maybe 100 times
66 # slower than perl's own, so perl's own is usually the better
67 # choice. In order to use perl's malloc(), the sbrk() system call
68 # must be simulated using MachTen's malloc(). See malloc.c for
69 # precise details of how this is achieved. Recent improvements
70 # to perl's malloc() currently crash MachTen, and so are disabled
71 # by -DPLAIN_MALLOC and -DNO_FANCY_MALLOC.
72 usemymalloc=${usemymalloc:-y}
74 # Do not wrap the following long line
75 malloc_cflags='ccflags="$ccflags -DPLAIN_MALLOC -DNO_FANCY_MALLOC -DUSE_PERL_SBRK"'
77 # When MachTen does a fork(), it immediately copies the whole of
78 # the parent process' data space for the child. This can be
79 # expensive. Using vfork() where appropriate avoids this cost.
80 d_vfork=${d_vfork:-define}
82 # Specify a high level of optimization (-O3 wouldn't do much more)
83 optimize=${optimize:--O2 -fomit-frame-pointer}
85 # Make symbol table listings les voluminous
88 # Set reg_infty -- the maximum allowable number of repeats in regular
89 # expressions such as /a{1,$max_repeats}/, and the maximum number of
90 # times /a*/ will match. Setting this too high without having a stack
91 # large enough to accommodate deep recursion in the regular expression
92 # engine allows perl to crash your Mac due to stack overrun if it
93 # encounters a pathological regular expression. The default is a
94 # compromise between capability and required stack size (see below).
95 # You may override the default value from the Configure command-line
98 # Configure -Dreg_infty=16368 ...
100 reg_infty=${reg_infty:-2047}
102 # If you want to have many perl processes active simultaneously --
103 # processing CGI forms -- for example, you should opt for a small stack.
104 # For safety, you should set reg_infty no larger than the corresponding
105 # value given in this table:
107 # Stack size reg_infty value supported
108 # ---------- -------------------------
111 # 512k 2**10-1 (1023)
114 # 16M 2**15-1 (32767) (perl's default value)
116 # This script selects a safe stack size based on the value of reg_infty
117 # specified above. However, you may choose to take a risk and set
118 # stack size lower: pathological regular expressions are rare in real-world
119 # programs. But be aware that, if perl does encounter one, it WILL
120 # crash your system. Do not set stack size lower than 96k unless
121 # you want perl's installation tests ( make test ) to crash your system.
123 # You may override the default value from the Configure command-line
124 # by specifying the required size in kilobytes like this:
126 # Configure -Dstack_size=96
128 if [ "X$stack_size" = 'X' ]
131 X=`expr $reg_infty / 256`
136 stack_size=`expr $stack_size \* 2`
138 X=`expr $stack_size \* 1024`
141 ldflags="$ldflags -Xlstack=$X"
142 ccflags="$ccflags -DREG_INFTY=$reg_infty"
144 # Install in /usr/local by default
147 # At least on PowerMac, doubles must be aligned on 8 byte boundaries.
148 # I don't know if this is true for all MachTen systems, or how to
149 # determine this automatically.
152 # 4.0.2 and earlier had a problem with perl's use of sigsetjmp and
153 # friends. Use setjmp and friends instead.
154 expr "$osvers" \< "4.0.3" > /dev/null && d_sigsetjmp='undef'
156 # System V IPC support in MachTen 4.1 is incomplete (missing msg function
157 # prototypes, no ftok()), buggy (semctl(.., .., IPC_STATUS, ..) hangs
158 # system), and undocumented. Claim it's not there until things improve.
159 d_msg=${d_msg:-undef}
160 d_sem=${d_sem:-undef}
161 d_shm=${d_shm:-undef}
163 # Get rid of some extra libs which it takes Configure a tediously
164 # long time never to find on MachTen
165 set `echo X "$libswanted "|sed -e 's/ net / /' -e 's/ socket / /' \
166 -e 's/ inet / /' -e 's/ nsl / /' -e 's/ nm / /' -e 's/ malloc / /' \
167 -e 's/ ld / /' -e 's/ sun / /' -e 's/ posix / /' \
168 -e 's/ cposix / /' -e 's/ crypt / /' \
169 -e 's/ ucb / /' -e 's/ bsd / /' -e 's/ BSD / /' -e 's/ PW / /'`
173 # While link counts on MachTen 4.1's fast file systems work correctly,
174 # on Macintosh Heirarchical File Systems, (and on HFS+)
175 # MachTen always reports ony two links to directories, even if they
176 # contain subdirectories. Consequently, we use this variable to stop
177 # File::Find using the link count to determine whether there are
178 # subdirectories to be searched. This will generate a harmless message:
179 # Hmm...You had some extra variables I don't know about...I'll try to keep 'em.
180 # Propagating recommended variable dont_use_nlink
181 dont_use_nlink=define
185 During Configure, you may see the message
187 *** WHOA THERE!!! ***
188 The recommended value for \$d_msg on this machine was "undef"!
189 Keep the recommended value? [y]
191 as well as similar messages concerning \$d_sem and \$d_shm. Select the
192 default answers: MachTen 4.1 appears to provide System V IPC support,
193 but it is incomplete and buggy: perl should be built without it.
195 Similarly, when you see
197 *** WHOA THERE!!! ***
198 The recommended value for \$d_vfork on this machine was "define"!
199 Keep the recommended value? [y]
201 select the default answer: vfork() works, and avoids expensive data
204 You may also see "WHOA THERE!!!" messages concerning \$d_endspent,
205 \$d_getspent, \$d_getspnam and \$d_setspent. In all cases, select the
206 default answer: MachTen's support for shadow password file access is
207 incomplete, and should not be used.
209 At the end of Configure, you will see a harmless message
211 Hmm...You had some extra variables I don't know about...I'll try to keep 'em.
212 Propagating recommended variable dont_use_nlink
213 Propagating recommended variable nmopts
214 Propagating recommended variable malloc_cflags...
215 Propagating recommended variable reg_infty
216 Read the File::Find documentation for more information about dont_use_nlink
218 Your perl will be built with a stack size of ${stack_size}k and a regular
219 expression repeat count limit of $reg_infty. If you want alternative
220 values, see the file hints/machten.sh for advice on how to change them.
225 may fail since MachTen may not return a useful nlinks field to stat
229 expr "$osvers" \< "4.1" >/dev/null && test -r ./broken-db.msg && \