+#! /bin/bash
# machten.sh
-# This is for MachTen 4.0.3. It might work on other versions and variants too.
+# This is for MachTen 4.1.4. It might work on other versions and variants
+# too. If it doesn't, tell me, and I'll try to fix it -- domo@computer.org
#
# Users of earlier MachTen versions might need a fixed tr from ftp.tenon.com.
# This should be described in the MachTen release notes.
#
# MachTen 2.x has its own hint file.
#
-# This file has been put together by Andy Dougherty
-# <doughera@lafcol.lafayette.edu> based on comments from lots of
+# The original version of this file was put together by Andy Dougherty
+# <doughera@lafayette.edu> based on comments from lots of
# folks, especially
# Mark Pease <peasem@primenet.com>
# Martijn Koster <m.koster@webcrawler.com>
# Richard Yeh <rcyeh@cco.caltech.edu>
#
+# Deny system's false claims to support mmap() and munmap(); note
+# also that Sys V IPC (re)disabled by jhi due to continuing inadequacy
+# -- Dominic Dunlop <domo@computer.org> 001111
+# Remove dynamic loading libraries from search; enable SysV IPC with
+# MachTen 4.1.4 and above; define SYSTEM_ALIGN_BYTES for old MT versions
+# -- Dominic Dunlop <domo@computer.org> 000224
# Disable shadow password file access: MT 4.1.1 has necessary library
# functions, but not header file (or documentation)
# -- Dominic Dunlop <domo@computer.org> 990804
#
# MachTen 4.1.1's support for shadow password file access is incomplete:
# disable its use completely.
-d_endspent=${d_endspent:-undef}
-d_getspent=${d_getspent:-undef}
d_getspnam=${d_getspnam:-undef}
-d_setspent=${d_setspent:-undef}
# MachTen 4.1.1 does support dynamic loading, but perl doesn't
# know how to use it yet.
# by -DPLAIN_MALLOC and -DNO_FANCY_MALLOC.
usemymalloc=${usemymalloc:-y}
+# Older versions of MachTen malloc() data on a two-byte boundary, which
+# works, but slows down operations on long, float and double data.
+# Perl's malloc() can compensate if SYSTEM_ALLOC_ALIGNMENT is suitably
+# defined.
+if expr "$osvers" \< "4.1" >/dev/null
+then
+system_alloc_alignment=" -DSYSTEM_ALLOC_ALIGNMENT=2"
+fi
# Do not wrap the following long line
-malloc_cflags='ccflags="$ccflags -DPLAIN_MALLOC -DNO_FANCY_MALLOC -DUSE_PERL_SBRK"'
+malloc_cflags='ccflags="$ccflags -DPLAIN_MALLOC -DNO_FANCY_MALLOC -DUSE_PERL_SBRK$system_alloc_alignment"'
# When MachTen does a fork(), it immediately copies the whole of
# the parent process' data space for the child. This can be
# friends. Use setjmp and friends instead.
expr "$osvers" \< "4.0.3" > /dev/null && d_sigsetjmp='undef'
-# System V IPC support in MachTen 4.1 is incomplete (missing msg function
+# System V IPC before MachTen 4.1.4 is incomplete (missing msg function
# prototypes, no ftok()), buggy (semctl(.., .., IPC_STATUS, ..) hangs
-# system), and undocumented. Claim it's not there until things improve.
+# system), and undocumented. Claim it's not there at all before 4.1.4.
+if expr "$osvers" \< "4.1.4" >/dev/null
+then
d_msg=${d_msg:-undef}
d_sem=${d_sem:-undef}
d_shm=${d_shm:-undef}
+fi
+
+
+# As of MachTen 4.1.4 the msg* and shm* are in libc but unimplemented
+# (an attempt to use them causes a runtime error)
+# XXX Configure probe for really functional msg*() is needed XXX
+# XXX Configure probe for really functional shm*() is needed XXX
+if test "$d_msg" = ""; then
+ d_msgget=${d_msgget:-undef}
+ d_msgctl=${d_msgctl:-undef}
+ d_msgsnd=${d_msgsnd:-undef}
+ d_msgrcv=${d_msgrcv:-undef}
+ case "$d_msgget$d_msgsnd$d_msgctl$d_msgrcv" in
+ *"undef"*) d_msg="$undef" ;;
+ esac
+fi
+if test "$d_shm" = ""; then
+ d_shmat=${d_shmat:-undef}
+ d_shmdt=${d_shmdt:-undef}
+ d_shmget=${d_shmget:-undef}
+ d_shmctl=${d_shmctl:-undef}
+ case "$d_shmat$d_shmctl$d_shmdt$d_shmget" in
+ *"undef"*) d_shm="$undef" ;;
+ esac
+fi
+
+# MachTen has stubs for mmap and munmap(), but they just result in the
+# caller being killed on the grounds of "Bad system call"
+d_mmap=${d_mmap:-undef}
+d_munmap=${d_munmap:-undef}
# Get rid of some extra libs which it takes Configure a tediously
-# long time never to find on MachTen
+# long time never to find on MachTen, or which break perl
set `echo X "$libswanted "|sed -e 's/ net / /' -e 's/ socket / /' \
-e 's/ inet / /' -e 's/ nsl / /' -e 's/ nm / /' -e 's/ malloc / /' \
-e 's/ ld / /' -e 's/ sun / /' -e 's/ posix / /' \
- -e 's/ cposix / /' -e 's/ crypt / /' \
+ -e 's/ cposix / /' -e 's/ crypt / /' -e 's/ dl / /' -e 's/ dld / /' \
-e 's/ ucb / /' -e 's/ bsd / /' -e 's/ BSD / /' -e 's/ PW / /'`
shift
libswanted="$*"
as well as similar messages concerning \$d_sem and \$d_shm. Select the
default answers: MachTen 4.1 appears to provide System V IPC support,
but it is incomplete and buggy: perl should be built without it.
+Similar considerations apply to memory mapping of files, controlled
+by \$d_mmap and \$d_munmap.
Similarly, when you see
select the default answer: vfork() works, and avoids expensive data
copying.
-You may also see "WHOA THERE!!!" messages concerning \$d_endspent,
-\$d_getspent, \$d_getspnam and \$d_setspent. In all cases, select the
-default answer: MachTen's support for shadow password file access is
-incomplete, and should not be used.
+You may also see "WHOA THERE!!!" messages concerning \$d_getspnam.
+Select the default answer: MachTen's support for shadow password
+file access is incomplete, and should not be used.
At the end of Configure, you will see a harmless message
Propagating recommended variable nmopts
Propagating recommended variable malloc_cflags...
Propagating recommended variable reg_infty
+ Propagating recommended variable system_alloc_alignment
Read the File::Find documentation for more information about dont_use_nlink
Your perl will be built with a stack size of ${stack_size}k and a regular
https://perl5.git.perl.org / perl5.git / blobdiff