hires sleeping wants libs

[perl5.git] / hints / machten.sh

diff --git a/hints/machten.sh b/hints/machten.sh
index 5ad4dba..3a311a1 100644 (file)
--- a/hints/machten.sh
+++ b/hints/machten.sh
@@ -15,6 +15,9 @@
 #      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
@@ -46,10 +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.
@@ -176,6 +176,35 @@ 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, or which break perl
 set `echo X "$libswanted "|sed -e 's/ net / /' -e 's/ socket / /' \
@@ -207,6 +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
 
@@ -217,10 +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