Stop checking if MiG supports retcode.

We already did the same change for Hurd
(https://git.savannah.gnu.org/cgit/hurd/hurd.git/commit/?id=ef5924402864ef049f40a39e73967628583bc1a4)

Due to MiG requiring the subsystem to be defined early in order to know the
size of a port, this was causing a division by zero error during ./configure.
We could have just move subsystem to the top of the snippet, however it is
simpler to just remove the check given that we have no plans to use some other
MiG anyway.

HAVE_MIG_RETCODE is removed completely since this will be a no-op either
way (compiling against old Hurd headers will work the same, new Hurd
headers will result in the same stubs since retcode is a no-op).
Message-Id: <ZFspor91aoMwbh9T@jupiter.tail36e24.ts.net>

diff --git a/config.h.in b/config.h.in
index c87008b6a9d9f8b48084d3b4c297b58872f3b7b4..44a34072a47aa0082594036c97301c6804427fa4 100644 (file)
--- a/config.h.in
+++ b/config.h.in
@@ -150,9 +150,6 @@
 /* Override abi-tags ABI version if necessary.  */
 #undef  __ABI_TAG_VERSION
 
-/* Mach/Hurd specific: define if mig supports the `retcode' keyword.  */
-#undef HAVE_MIG_RETCODE
-
 /* Mach specific: define if the `host_page_size' RPC is available.  */
 #undef HAVE_HOST_PAGE_SIZE
 

diff --git a/sysdeps/mach/configure b/sysdeps/mach/configure
index b08872b8bce9be06e095960e96b3dbc857448a65..df20d8640ff8124c4710732da5d35d7a7b73e9ec 100644 (file)
--- a/sysdeps/mach/configure
+++ b/sysdeps/mach/configure
@@ -485,40 +485,4 @@ if test $libc_cv_mach_i386_gdt = yes; then
 fi
 
 
-
-# See if mig groks `retcode'.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $MIG supports the retcode keyword" >&5
-$as_echo_n "checking whether $MIG supports the retcode keyword... " >&6; }
-if ${hurd_cv_mig_retcode+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat > conftest.defs <<\EOF
-#include <mach/std_types.defs>
-#include <mach/mach_types.defs>
-subsystem foobar 1000;
-type reply_port_t = polymorphic | MACH_MSG_TYPE_PORT_SEND_ONCE
-       ctype: mach_port_t;
-simpleroutine foobar_reply (
-       reply_port: reply_port_t;
-       err: kern_return_t, RetCode);
-EOF
-if { ac_try='CC="${CC}" ${MIG-false} -n conftest.defs 1>&5'
-  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; }; then
-  hurd_cv_mig_retcode=yes
-else
-  hurd_cv_mig_retcode=no
-fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hurd_cv_mig_retcode" >&5
-$as_echo "$hurd_cv_mig_retcode" >&6; }
-if test $hurd_cv_mig_retcode = yes; then
-  $as_echo "#define HAVE_MIG_RETCODE 1" >>confdefs.h
-
-fi
-
 CPPFLAGS=$OLD_CPPFLAGS

diff --git a/sysdeps/mach/configure.ac b/sysdeps/mach/configure.ac
index 537677c1d7d8ea5620e72317989d8049c9bcfc22..869cc9f8203b65b6d8c554c599a7cda31fe459b3 100644 (file)
--- a/sysdeps/mach/configure.ac
+++ b/sysdeps/mach/configure.ac
@@ -104,30 +104,4 @@ if test $libc_cv_mach_i386_gdt = yes; then
   AC_DEFINE([HAVE_I386_SET_GDT])
 fi
 
-dnl Swiped from hurd/aclocal.m4
-AC_DEFUN([hurd_MIG_RETCODE], [dnl
-# See if mig groks `retcode'.
-AC_CACHE_CHECK(whether $MIG supports the retcode keyword, hurd_cv_mig_retcode,
-[cat > conftest.defs <<\EOF
-#include <mach/std_types.defs>
-#include <mach/mach_types.defs>
-subsystem foobar 1000;
-type reply_port_t = polymorphic | MACH_MSG_TYPE_PORT_SEND_ONCE
-       ctype: mach_port_t;
-simpleroutine foobar_reply (
-       reply_port: reply_port_t;
-       err: kern_return_t, RetCode);
-EOF
-if AC_TRY_COMMAND([CC="${CC}" ${MIG-false} -n conftest.defs 1>&AS_MESSAGE_LOG_FD]); then
-  hurd_cv_mig_retcode=yes
-else
-  hurd_cv_mig_retcode=no
-fi
-rm -f conftest*])
-if test $hurd_cv_mig_retcode = yes; then
-  AC_DEFINE(HAVE_MIG_RETCODE)
-fi])
-
-hurd_MIG_RETCODE
-
 CPPFLAGS=$OLD_CPPFLAGS