2007-02-19 Thomas Schwinge <tschwinge@gnu.org>

Add a `--enable-platform' option for future use.  Allow building
	without any Linux code.
	* Makefile.am: Don't include `linux/Makefrag.am' in there...
	* Makefrag.am: ... but rather in here.
	* configfrag.ac (MACH_MACHINE_ROUTINES): AC_DEFINE_UNQUOTED based on
	then shell variable `mach_machine_routines'.
	(--disable-default-device-drivers): Don't define in there...
	* configure.ac: ... but rather in here.
	(--enable-platform): New option.
	(host_platform): New variable.
	(HOST_i386): Don't define there...
	* i386/configfrag.ac (HOST_ix86): ... but rather here, rename it and
	adapt all users.
	(PLATFORM_at): New conditional.
	(MACH_MACHINE_ROUTINES): Don't AC_DEFINE, but rather set a shell
	variable `mach_machine_routines'.
	* linux/Makefrag.am (noinst_LIBRARIES, gnumach_o_LDADD): Only enhance
	``if CODE_linux'' or ``if device_driver_group_pcmcia''.
	* linux/configfrag.ac (AC_OPTION): Rename to `AC_OPTION_Linux_ix86_at'
	and rework a bit.  Adapt all users.
	(AC_OPTION_nodef): Rename to `AC_OPTION_Linux_ix86_at_nodef' and rework
	a bit.  Adapt all users.
	(CODE_linux): New conditional.
	* i386/Makefrag.am (LINKFLAGS_gnumach): Don't evaluate $(systype).

	* Makefile.am: Update the FSF's postal address.
	* doc/Makefrag.am: Likewise.
	* i386/linux/Makefrag.am: Likewise.
	* linux/Makefrag.am: Likewise.
	* tests/Makefrag.am: Likewise.
	* tests/configfrag.ac: Move to GPL.

1 files changed, 49 insertions, 14 deletions

diff --git a/i386/configfrag.ac b/i386/configfrag.ac
index a82ce5c..3603721 100644
--- a/i386/configfrag.ac
+++ b/i386/configfrag.ac
@@ -1,6 +1,6 @@
 dnl Configure fragment for i386.
 
-dnl Copyright 1999, 2004, 2006 Free Software Foundation, Inc.
+dnl Copyright (C) 1999, 2004, 2006, 2007 Free Software Foundation, Inc.
 
 dnl Permission to use, copy, modify and distribute this software and its
 dnl documentation is hereby granted, provided that both the copyright
@@ -17,25 +17,49 @@ dnl USE OF THIS SOFTWARE.
 # Definitions.
 #
 
-# Some of the i386-specific code checks for these.
-AC_DEFINE([__ELF__], [1], [__ELF__])
-AC_DEFINE([i386], [1], [i386])
+[case $host_cpu in
+  i?86)]
+    AM_CONDITIONAL([HOST_ix86], [true])
+
+    # Some of the i386-specific code checks for these.
+    AC_DEFINE([__ELF__], [1], [__ELF__])
+    AC_DEFINE([i386], [1], [i386])
+
+    [# Does the architecture provide machine-specific interfaces?
+    mach_machine_routines=1;;
+  *)]
+    AM_CONDITIONAL([HOST_ix86], [false])[;;
+esac
+
+case $host_platform in
+  at)]
+    AM_CONDITIONAL([PLATFORM_at], [true])[;;
+  *)]
+    AM_CONDITIONAL([PLATFORM_at], [false])[;;
+esac
 
 #
 # Formerly in `i386/bogus/'.
 #
 
-# i386/bogus/com.h
-AC_DEFINE([NCOM], [4], [NCOM])
+ncom=0
+nlpr=0
+case $host_platform:$host_cpu in
+  at:i?86)
+    ncom=4
+    nlpr=1
 
-# i386/bogus/lpr.h
-AC_DEFINE([NLPR], [1], [NLPR])
+    # i386/bogus/platforms.h]
+    AC_DEFINE([AT386], [1], [AT386])[;;
+  *)
+    :;;
+esac]
 
-# i386/bogus/mach_machine_routines.h
-AC_DEFINE([MACH_MACHINE_ROUTINES], [1], [MACH_MACHINE_ROUTINES])
+# i386/bogus/com.h
+AC_DEFINE_UNQUOTED([NCOM], [$ncom], [NCOM])
 
-# i386/bogus/platforms.h
-AC_DEFINE([AT386], [1], [AT386])
+# i386/bogus/lpr.h
+AC_DEFINE_UNQUOTED([NLPR], [$nlpr], [NLPR])
 
 # i386/bogus/rc.h
 #
@@ -58,11 +82,22 @@ AC_DEFINE([RCADDR], [0x3f8], [where is the com port for the remote console])
 #
 
 AC_ARG_ENABLE([lpr],
-  AS_HELP_STRING([--disable-lpr], [disable use of lpr device]))
-[enable_lpr=${enable_lpr-$enable_default_device_drivers}
+  AS_HELP_STRING([--enable-lpr], [lpr device; enabled by default for ix86-at]))
+[case $host_platform:$host_cpu in
+  at:i?86)
+    enable_lpr=${enable_lpr-$enable_default_device_drivers};;
+  *)
+    if [ x"$enable_lpr" = xyes ]; then]
+      AC_MSG_ERROR([cannot enable `lpr' in this configuration.])
+    [fi;;
+esac
 if [ x"$enable_lpr" = xyes ]; then]
   AC_DEFINE([MACH_LPR], [], [lpr device])
   AM_CONDITIONAL([enable_lpr], [true])
 [else]
   AM_CONDITIONAL([enable_lpr], [false])
 [fi]
+
+dnl Local Variables:
+dnl mode: autoconf
+dnl End: