1 GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
3 AC_CHECK_TOOL(MIG, mig, MISSING)
4 if test "x$MIG" = xMISSING; then
5 AC_MSG_ERROR([cannot find required build tool mig])
7 LIBC_CONFIG_VAR([MIG], [$MIG])
9 if test -n "$sysheaders"; then
10 OLD_CPPFLAGS=$CPPFLAGS
11 CPPFLAGS="$CPPFLAGS $SYSINCLUDES"
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])], -)
21 dnl mach_TYPE_CHECK(foo_t, bar_t)
23 dnl Check if foo_t is defined by <mach/mach_types.h>.
24 dnl If not, compile with -Dfoo_t=bar_t.
26 AC_DEFUN([mach_TYPE_CHECK], [dnl
27 AC_CACHE_CHECK(for $1 in mach/mach_types.h, libc_cv_mach_$1,
28 AC_TRY_COMPILE([#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"
35 dnl OSF Mach has renamed these typedefs for some reason.
37 mach_TYPE_CHECK(task_t, task_port_t)
38 mach_TYPE_CHECK(thread_t, thread_port_t)
41 dnl The creation_time field is a GNU Mach addition the other variants lack.
43 AC_CACHE_CHECK(for creation_time in task_basic_info,
44 libc_cv_mach_task_creation_time, [dnl
45 AC_TRY_COMPILE([#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 $libc_cv_mach_task_creation_time = no; then
50 AC_MSG_ERROR([you need Mach headers supporting task_info.creation_time])
54 dnl The Darwin variant no longer has <mach/mach.defs>
55 dnl but instead has several constituent .defs files.
56 dnl In this scenario we will presume there is a <mach/mach_interface.h>
57 dnl that contains an #include for each constituent header file,
58 dnl but we don't do a check for that here because in a bare
59 dnl environment the compile against those headers will fail.
62 for ifc in mach mach4 gnumach \
63 clock clock_priv host_priv host_security ledger lock_set \
64 processor processor_set task task_notify thread_act vm_map \
65 memory_object memory_object_default default_pager \
68 AC_CHECK_HEADER(mach/${ifc}.defs, [dnl
69 mach_interface_list="$mach_interface_list $ifc"],, -)
71 if test "x$mach_interface_list" = x; then
72 AC_MSG_ERROR([what manner of Mach is this?])
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 $libc_cv_mach_host_page_size = yes; then
81 AC_DEFINE([HAVE_HOST_PAGE_SIZE])
84 AC_CHECK_HEADER(mach/machine/ndr_def.h, [dnl
85 DEFINES="$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>'"],, -)], -)
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])
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])
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 $MIG supports the retcode keyword, hurd_cv_mig_retcode,
111 [cat > conftest.defs <<\EOF
112 #include <mach/std_types.defs>
113 #include <mach/mach_types.defs>
114 subsystem foobar 1000;
115 type reply_port_t = polymorphic | MACH_MSG_TYPE_PORT_SEND_ONCE
117 simpleroutine foobar_reply (
118 reply_port: reply_port_t;
119 err: kern_return_t, RetCode);
121 if AC_TRY_COMMAND([CC="${CC}" ${MIG-false} -n conftest.defs 1>&AS_MESSAGE_LOG_FD]); then
122 hurd_cv_mig_retcode=yes
124 hurd_cv_mig_retcode=no
127 if test $hurd_cv_mig_retcode = yes; then
128 AC_DEFINE(HAVE_MIG_RETCODE)
133 if test -n "$sysheaders"; then
134 CPPFLAGS=$OLD_CPPFLAGS