* sysdeps/mach/configure.in: Add some checks for Mach headers

	to ensure a sane installation.
	(mach_interface_list): Define this variable by checking for .defs
	files found in various variants.
	* configure.in (mach_interface_list): AC_SUBST this.
	* config.make.in (mach-interface-list): New substituted variable.
	* mach/Makefile (user-interfaces): Define this using the value
	of $(mach-interface-list) instead of mach, mach4.
	Updated other references to mach_interface to use it as well.

	* sysdeps/mach/powerpc/machine-lock.h: Avoid multi-line strings.

	* mach/msgserver.c [NDR_CHAR_ASCII] (mig_reply_header_t): #define as
	mig_reply_error_t for OSF Mach variant.

	* mach/Makefile (routines): Remove bootprivport.
	* mach/bootprivport.c: File removed.  It has never been used.

	* mach/msg-destroy.c (__mach_msg_destroy) [MACH_MSG_PORT_DESCRIPTOR]:
	Grok the OSF flavor of message format.
	(mach_msg_destroy_port): For MAKE_SEND and
	MAKE_SEND_ONCE rights, create an destroy a right to ensure proper
	no-senders notification.

2002-02-06  Roland McGrath  <roland@frob.com>

	* hurd/Versions (libc: GLIBC_2.0): Move cthread_fork, cthread_detach
	to here if 2.0 compatibility enabled ...
	(libc: GLIBC_2.1.3): ... from here.

2 files changed, 39 insertions, 10 deletions

diff --git a/sysdeps/mach/configure.in b/sysdeps/mach/configure.in
index 2a76ead8ed..058a2a05c8 100644
--- a/sysdeps/mach/configure.in
+++ b/sysdeps/mach/configure.in
@@ -1,6 +1,11 @@
 sinclude(./aclocal.m4)dnl Autoconf lossage.
 GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
 
+### Sanity checks for Mach header installation
+AC_CHECK_HEADER(mach/mach_types.h,, [AC_MSG_ERROR([cannot find Mach headers])])
+AC_CHECK_HEADER(mach/mach_types.defs,, [dnl
+AC_MSG_ERROR([cannot find Mach .defs files])])
+
 dnl
 dnl mach_TYPE_CHECK(foo_t, bar_t)
 dnl
@@ -21,6 +26,9 @@ dnl
 mach_TYPE_CHECK(task_t, task_port_t)
 mach_TYPE_CHECK(thread_t, thread_port_t)
 
+dnl
+dnl The creation_time field is a GNU Mach addition the other variants lack.
+dnl
 AC_CACHE_CHECK(for creation_time in task_basic_info,
 	       libc_cv_mach_task_creation_time, [dnl
 AC_TRY_COMPILE([#include <mach/task_info.h>], [
@@ -30,3 +38,24 @@ long s = i->creation_time.seconds;
 if test $libc_cv_mach_task_creation_time = no; then
   DEFINES="$DEFINES -DNO_CREATION_TIME=1"
 fi
+
+dnl
+dnl The Darwin variant no longer has <mach/mach.defs>
+dnl but instead has several constituent .defs files.
+dnl In this scenario we will presume there is a <mach/mach_interface.h>
+dnl that contains an #include for each constituent header file,
+dnl but we don't do a check for that here because in a bare
+dnl environment the compile against those headers will fail.
+dnl
+mach_interface_list=
+for ifc in mach mach4 \
+	   clock_priv host_priv host_security ledger lock_set \
+	   processor processor_set task thread_act vm_map \
+	   memory_object memory_object_default default_pager \
+	   ; do
+  AC_CHECK_HEADER(mach/${ifc}.defs, [dnl
+  mach_interface_list="$mach_interface_list $ifc"])
+done
+if test "x$mach_interface_list" = x; then
+  AC_MSG_ERROR([what manner of Mach is this?])
+fi
diff --git a/sysdeps/mach/powerpc/machine-lock.h b/sysdeps/mach/powerpc/machine-lock.h
index 96e833ca15..cba6b0a6e2 100644
--- a/sysdeps/mach/powerpc/machine-lock.h
+++ b/sysdeps/mach/powerpc/machine-lock.h
@@ -1,5 +1,5 @@
 /* Machine-specific definition for spin locks.  PowerPC version.
-   Copyright (C) 1994, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1994,97,2002 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -40,9 +40,9 @@ __spin_unlock (__spin_lock_t *__lock)
 {
   long int __locked;
   __asm__ __volatile__ ("\
-0:	lwarx	%0,0,%1
-	stwcx.	%2,0,%1
-	bne-	0b
+0:	lwarx	%0,0,%1\n\
+	stwcx.	%2,0,%1\n\
+	bne-	0b\n\
 " : "=&r" (__locked) : "r" (__lock), "r" (0) : "cr0");
 }
 
@@ -53,9 +53,9 @@ __spin_try_lock (register __spin_lock_t *__lock)
 {
   long int __rtn;
   __asm__ __volatile__ ("\
-0:	lwarx	%0,0,%1
-	stwcx.	%2,0,%1
-	bne-	0b
+0:	lwarx	%0,0,%1\n\
+	stwcx.	%2,0,%1\n\
+	bne-	0b\n\
 " : "=&r" (__rtn) : "r" (__lock), "r" (1) : "cr0");
   return !__rtn;
 }
@@ -67,9 +67,9 @@ __spin_lock_locked (__spin_lock_t *__lock)
 {
   long int __rtn;
   __asm__ __volatile__ ("\
-0:	lwarx	%0,0,%1
-	stwcx.	%0,0,%1
-	bne-	0b
+0:	lwarx	%0,0,%1\n\
+	stwcx.	%0,0,%1\n\
+	bne-	0b\n\
 " : "=&r" (__rtn) : "r" (__lock) : "cr0");
   return __rtn;
 }