diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 78 |
1 files changed, 44 insertions, 34 deletions
diff --git a/configure.ac b/configure.ac index 86357b1..9aa6ba6 100644 --- a/configure.ac +++ b/configure.ac @@ -1,6 +1,7 @@ dnl Configure script for GNU Mach. -dnl Copyright 1997, 1998, 1999, 2004, 2006 Free Software Foundation, Inc. +dnl Copyright (C) 1997, 1998, 1999, 2004, 2006, 2007 +dnl 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 @@ -35,27 +36,35 @@ dnl We require GNU make. ) # -# Deduce the output variable `systype' from the configuration parameters. +# Deduce the architecture we're building for. # AC_CANONICAL_HOST -m4_define([set_HOST], [[ - case $host_cpu in - $2)] AM_CONDITIONAL([HOST_$1], [true]) [ - systype=$1;; - *)] AM_CONDITIONAL([HOST_$1], [false]) [;; - esac -]]) - -[systype=unsupported] -# Our supported architectures. -set_HOST([i386],[i?86]) - -[if test -f "$srcdir"/"$systype"/Makefrag.am; then :; else] - AC_MSG_ERROR([unsupported CPU type $host_cpu]) -[fi] +AC_ARG_ENABLE([platform], + AS_HELP_STRING([--enable-platform=PLATFORM], [specify the platform to build a + kernel for. Defaults to `at' for `i?86'. No other possibilities.]), + [host_platform=$enable_platform], + [host_platform=default]) +[# Supported configurations. +case $host_platform:$host_cpu in + default:i?86) + host_platform=at;; + at:i?86) + :;; + *)] + AC_MSG_ERROR([unsupported combination of cpu type `$host_cpu' and platform + `$host_platform'.])[;; +esac] +AC_SUBST([host_platform]) +[# This is used in a few places. +case $host_cpu in + i?86) + systype=i386;; + *) + systype=$host_cpu;; +esac] AC_SUBST([systype]) # @@ -91,29 +100,30 @@ AC_CHECK_PROG([PATCH], [patch], [patch], [patch-not-found]) # The test suite. m4_include([tests/configfrag.ac]) -# General options. -m4_include([configfrag.ac]) +# Default set of device drivers. +AC_ARG_ENABLE([default-device-drivers], + AS_HELP_STRING([--disable-default-device-drivers], [have the options marked + with ``enabled by default'' disabled by default; then use the `--enable-*' + options to enable only those you actually want to have enabled])) +[if [ x"$enable_default_device_drivers" != xno ] +then enable_default_device_drivers=yes +fi] + +# Platform-specific configuration. + +# PC AT. +# TODO. Currently handled in `i386/configfrag.ac'. # Machine-specific configuration. -# i386. -[if [ "$systype" = i386 ]; then] - m4_include([i386/configfrag.ac]) -[fi] +# ix86. +m4_include([i386/configfrag.ac]) + +# General options. +m4_include([configfrag.ac]) # Linux code snarfed into GNU Mach. -dnl Strictly speaking, we could have a `linux' option too, but it's currently -dnl not possible to built a useful kernel without at least one Linux driver, so -dnl that's not really necessary. -dnl -dnl The following doesn't work because of ``configure: error: conditional -dnl "device_driver_floppy" was never defined.''. -dnl AC_ARG_ENABLE([linux-device-drivers], -dnl AS_HELP_STRING([--disable-linux-device-drivers], -dnl [disable any use of Linux's device drivers])) -dnl [if [ x"$enable_linux_device_drivers" != xno ]; then] m4_include([linux/configfrag.ac]) -dnl [fi] # # Compiler features. |