X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=hints%2Fmachten.sh;h=3a311a1746a32176712e78c1260a10e228bd5a15;hb=77003bb1f5b79e478d4e39dbf22a7d33aacd2fd5;hp=cc663a9efb2672609b35f5761121b571f9990a99;hpb=7ecd88f12de2d02174692d015d1d0bf26ee3cbdb;p=p5sagit%2Fp5-mst-13.2.git diff --git a/hints/machten.sh b/hints/machten.sh index cc663a9..3a311a1 100644 --- a/hints/machten.sh +++ b/hints/machten.sh @@ -1,18 +1,26 @@ +#! /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 +# The original version of this file was put together by Andy Dougherty # based on comments from lots of # folks, especially # Mark Pease # Martijn Koster # Richard Yeh # +# 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 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 000224 # Disable shadow password file access: MT 4.1.1 has necessary library # functions, but not header file (or documentation) # -- Dominic Dunlop 990804 @@ -41,10 +49,7 @@ # # 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. @@ -71,8 +76,16 @@ fi # 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$system_alloc_alignment"' # When MachTen does a fork(), it immediately copies the whole of # the parent process' data space for the child. This can be @@ -153,19 +166,51 @@ alignbytes=8 # friends. Use setjmp and friends instead. expr "$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 "$libswanted "|sed -e 's/ net / /' -e 's/ socket / /' \ -e 's/ inet / /' -e 's/ nsl / /' -e 's/ nm / /' -e 's/ malloc / /' \ -e 's/ ld / /' -e 's/ sun / /' -e 's/ posix / /' \ - -e 's/ cposix / /' -e 's/ crypt / /' \ + -e 's/ cposix / /' -e 's/ crypt / /' -e 's/ dl / /' -e 's/ dld / /' \ -e 's/ ucb / /' -e 's/ bsd / /' -e 's/ BSD / /' -e 's/ PW / /'` shift libswanted="$*" @@ -191,6 +236,8 @@ During Configure, you may see the message 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 @@ -201,10 +248,9 @@ 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 @@ -213,6 +259,7 @@ Hmm...You had some extra variables I don't know about...I'll try to keep 'em. 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