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Annotation of Gnu-Mach/i386/configfrag.ac, revision 1.1.1.1

1.1       root        1: dnl Configure fragment for i386.
                      2: 
                      3: dnl Copyright (C) 1999, 2004, 2006, 2007, 2008 Free Software Foundation, Inc.
                      4: 
                      5: dnl Permission to use, copy, modify and distribute this software and its
                      6: dnl documentation is hereby granted, provided that both the copyright
                      7: dnl notice and this permission notice appear in all copies of the
                      8: dnl software, derivative works or modified versions, and any portions
                      9: dnl thereof, and that both notices appear in supporting documentation.
                     10: dnl
                     11: dnl THE FREE SOFTWARE FOUNDATION ALLOWS FREE USE OF THIS SOFTWARE IN ITS
                     12: dnl "AS IS" CONDITION.  THE FREE SOFTWARE FOUNDATION DISCLAIMS ANY
                     13: dnl LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE
                     14: dnl USE OF THIS SOFTWARE.
                     15: 
                     16: #
                     17: # Definitions.
                     18: #
                     19: 
                     20: [case $host_cpu in
                     21:   i?86)]
                     22:     AM_CONDITIONAL([HOST_ix86], [true])
                     23: 
                     24:     # Some of the i386-specific code checks for these.
                     25:     AC_DEFINE([__ELF__], [1], [__ELF__])
                     26: 
                     27:     # Determines the size of the CPU cache line.
                     28:     AC_DEFINE([CPU_L1_SHIFT], [6], [CPU_L1_SHIFT])
                     29: 
                     30:     [# Does the architecture provide machine-specific interfaces?
                     31:     mach_machine_routines=1;;
                     32:   *)]
                     33:     AM_CONDITIONAL([HOST_ix86], [false])[;;
                     34: esac
                     35: 
                     36: case $host_platform in
                     37:   at)]
                     38:     AM_CONDITIONAL([PLATFORM_at], [true])[;;
                     39:   *)]
                     40:     AM_CONDITIONAL([PLATFORM_at], [false])[;;
                     41: esac
                     42: 
                     43: #
                     44: # Formerly in `i386/bogus/'.
                     45: #
                     46: 
                     47: ncom=0
                     48: nlpr=0
                     49: case $host_platform:$host_cpu in
                     50:   at:i?86)
                     51:     ncom=4
                     52:     nlpr=1
                     53: 
                     54:     # i386/bogus/platforms.h]
                     55:     AC_DEFINE([AT386], [1], [AT386])[;;
                     56:   xen:i?86)
                     57:     # TODO.  That should probably not be needed.
                     58:     ncom=1
                     59:     # TODO.  That should probably not be needed.
                     60:     # i386/bogus/platforms.h]
                     61:     AC_DEFINE([AT386], [1], [AT386])[;;
                     62:   *)
                     63:     :;;
                     64: esac]
                     65: 
                     66: # i386/bogus/com.h
                     67: AC_DEFINE_UNQUOTED([NCOM], [$ncom], [NCOM])
                     68: 
                     69: # i386/bogus/lpr.h
                     70: AC_DEFINE_UNQUOTED([NLPR], [$nlpr], [NLPR])
                     71: 
                     72: #
                     73: # Options.
                     74: #
                     75: 
                     76: AC_ARG_ENABLE([lpr],
                     77:   AS_HELP_STRING([--enable-lpr], [lpr device; on ix86-at enabled by default]))
                     78: [case $host_platform:$host_cpu in
                     79:   at:i?86)
                     80:     case $enable_device_drivers in
                     81:       default)
                     82:         enable_lpr=${enable_lpr-yes};;
                     83:       *)
                     84:         enable_lpr=${enable_lpr-no};;
                     85:     esac;;
                     86:   *)
                     87:     if [ x"$enable_lpr" = xyes ]; then]
                     88:       AC_MSG_ERROR([cannot enable `lpr' in this configuration.])
                     89:     [fi;;
                     90: esac
                     91: if [ x"$enable_lpr" = xyes ]; then]
                     92:   AC_DEFINE([MACH_LPR], [], [lpr device])
                     93:   AM_CONDITIONAL([enable_lpr], [true])
                     94: [else]
                     95:   AM_CONDITIONAL([enable_lpr], [false])
                     96: [fi]
                     97: 
                     98: 
                     99: AC_ARG_ENABLE([pae],
                    100:   AS_HELP_STRING([--enable-pae], [PAE support (ix86-only); on ix86-at disabled
                    101:     by default, on ix86-xen enabled by default]))
                    102: [case $host_platform:$host_cpu in
                    103:   xen:i?86)
                    104:     enable_pae=${enable_pae-yes};;
                    105:   *:i?86)
                    106:     :;;
                    107:   *)
                    108:     if [ x"$enable_pae" = xyes ]; then]
                    109:       AC_MSG_ERROR([can only enable the `PAE' feature on ix86.])
                    110:     [fi;;
                    111: esac
                    112: if [ x"$enable_pae" = xyes ]; then]
                    113:   AC_DEFINE([PAE], [1], [PAE support])
                    114:   AM_CONDITIONAL([enable_pae], [true])
                    115: [else]
                    116:   AM_CONDITIONAL([enable_pae], [false])
                    117: [fi]
                    118: 
                    119: dnl Local Variables:
                    120: dnl mode: autoconf
                    121: dnl End:

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