.pc/hurd-i386/git-mach-headers-freestanding.diff/sysdeps/mach/configure.ac

   1 GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
   2
   3 AC_CHECK_TOOL(MIG, mig, MISSING)
   4 if test "x$MIG" = xMISSING; then
   5   AC_MSG_ERROR([cannot find required build tool mig])
   6 fi
   7 LIBC_CONFIG_VAR([MIG], [$MIG])
   8
   9 if test -n "$sysheaders"; then
  10   OLD_CPPFLAGS=$CPPFLAGS
  11   CPPFLAGS="$CPPFLAGS $SYSINCLUDES"
  12 fi
  13
  14 ### Sanity checks for Mach header installation
  15 AC_CHECK_HEADER(mach/mach_types.h,,
  16                 [AC_MSG_ERROR([cannot find Mach headers])], -)
  17 AC_CHECK_HEADER(mach/mach_types.defs,, [dnl
  18 AC_MSG_ERROR([cannot find Mach .defs files])], -)
  19
  20 dnl
  21 dnl mach_TYPE_CHECK(foo_t, bar_t)
  22 dnl
  23 dnl Check if foo_t is defined by <mach/mach_types.h>.
  24 dnl If not, compile with -Dfoo_t=bar_t.
  25 dnl
  26 AC_DEFUN([mach_TYPE_CHECK], [dnl
  27 AC_CACHE_CHECK(for $1 in mach/mach_types.h, libc_cv_mach_$1,
  28 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <mach/mach_types.h>]], [[extern $1 foo;]])],
  29 [libc_cv_mach_$1=$1], [libc_cv_mach_$1=$2]))
  30 if test [$]libc_cv_mach_$1 != $1; then
  31   DEFINES="$DEFINES -D$1=$2"
  32 fi])
  33
  34 dnl
  35 dnl OSF Mach has renamed these typedefs for some reason.
  36 dnl
  37 mach_TYPE_CHECK(task_t, task_port_t)
  38 mach_TYPE_CHECK(thread_t, thread_port_t)
  39
  40 dnl
  41 dnl The creation_time field is a GNU Mach addition the other variants lack.
  42 dnl
  43 AC_CACHE_CHECK(for creation_time in task_basic_info,
  44                libc_cv_mach_task_creation_time, [dnl
  45 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <mach/task_info.h>]], [[
  46 extern struct task_basic_info *i;
  47 long s = i->creation_time.seconds;
  48 ]])], [libc_cv_mach_task_creation_time=yes], [libc_cv_mach_task_creation_time=no])])
  49 if test $libc_cv_mach_task_creation_time = no; then
  50   AC_MSG_ERROR([you need Mach headers supporting task_info.creation_time])
  51 fi
  52
  53 dnl
  54 dnl The Darwin variant no longer has <mach/mach.defs>
  55 dnl but instead has several constituent .defs files.
  56 dnl In this scenario we will presume there is a <mach/mach_interface.h>
  57 dnl that contains an #include for each constituent header file,
  58 dnl but we don't do a check for that here because in a bare
  59 dnl environment the compile against those headers will fail.
  60 dnl
  61 mach_interface_list=
  62 for ifc in mach mach4 gnumach \
  63            clock clock_priv host_priv host_security ledger lock_set \
  64            processor processor_set task task_notify thread_act vm_map \
  65            memory_object memory_object_default default_pager \
  66            i386/mach_i386 \
  67            ; do
  68   AC_CHECK_HEADER(mach/${ifc}.defs, [dnl
  69   mach_interface_list="$mach_interface_list $ifc"],, -)
  70 done
  71 if test "x$mach_interface_list" = x; then
  72   AC_MSG_ERROR([what manner of Mach is this?])
  73 fi
  74
  75 AC_CACHE_CHECK(for host_page_size in mach_host.defs,
  76                libc_cv_mach_host_page_size, [dnl
  77 AC_EGREP_HEADER(host_page_size, mach/mach_host.defs,
  78                 libc_cv_mach_host_page_size=yes,
  79                 libc_cv_mach_host_page_size=no)])
  80 if test $libc_cv_mach_host_page_size = yes; then
  81   AC_DEFINE([HAVE_HOST_PAGE_SIZE])
  82 fi
  83
  84 AC_CHECK_HEADER(mach/machine/ndr_def.h, [dnl
  85   DEFINES="$DEFINES -DNDR_DEF_HEADER='<mach/machine/ndr_def.h>'"], [dnl
  86 AC_CHECK_HEADER(machine/ndr_def.h, [dnl
  87   DEFINES="$DEFINES -DNDR_DEF_HEADER='<machine/ndr_def.h>'"],, -)], -)
  88
  89 AC_CACHE_CHECK(for i386_io_perm_modify in mach_i386.defs,
  90                libc_cv_mach_i386_ioports, [dnl
  91 AC_EGREP_HEADER(i386_io_perm_modify, mach/i386/mach_i386.defs,
  92                 libc_cv_mach_i386_ioports=yes,
  93                 libc_cv_mach_i386_ioports=no)])
  94 if test $libc_cv_mach_i386_ioports = yes; then
  95   AC_DEFINE([HAVE_I386_IO_PERM_MODIFY])
  96 fi
  97
  98 AC_CACHE_CHECK(for i386_set_gdt in mach_i386.defs,
  99                libc_cv_mach_i386_gdt, [dnl
 100 AC_EGREP_HEADER(i386_set_gdt, mach/i386/mach_i386.defs,
 101                 libc_cv_mach_i386_gdt=yes,
 102                 libc_cv_mach_i386_gdt=no)])
 103 if test $libc_cv_mach_i386_gdt = yes; then
 104   AC_DEFINE([HAVE_I386_SET_GDT])
 105 fi
 106
 107 dnl Swiped from hurd/aclocal.m4
 108 AC_DEFUN([hurd_MIG_RETCODE], [dnl
 109 # See if mig groks `retcode'.
 110 AC_CACHE_CHECK(whether $MIG supports the retcode keyword, hurd_cv_mig_retcode,
 111 [cat > conftest.defs <<\EOF
 112 #include <mach/std_types.defs>
 113 #include <mach/mach_types.defs>
 114 subsystem foobar 1000;
 115 type reply_port_t = polymorphic | MACH_MSG_TYPE_PORT_SEND_ONCE
 116         ctype: mach_port_t;
 117 simpleroutine foobar_reply (
 118         reply_port: reply_port_t;
 119         err: kern_return_t, RetCode);
 120 EOF
 121 if AC_TRY_COMMAND([CC="${CC}" ${MIG-false} -n conftest.defs 1>&AS_MESSAGE_LOG_FD]); then
 122   hurd_cv_mig_retcode=yes
 123 else
 124   hurd_cv_mig_retcode=no
 125 fi
 126 rm -f conftest*])
 127 if test $hurd_cv_mig_retcode = yes; then
 128   AC_DEFINE(HAVE_MIG_RETCODE)
 129 fi])
 130
 131 hurd_MIG_RETCODE
 132
 133 if test -n "$sysheaders"; then
 134   CPPFLAGS=$OLD_CPPFLAGS
 135 fi