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authorRoland McGrath <roland@gnu.org>2002-01-19 23:44:37 +0000
committerRoland McGrath <roland@gnu.org>2002-01-19 23:44:37 +0000
commit47e0b4eb66a95e7f05444538a97d91fb121a75c5 (patch)
treecdfdd776a5e79ca2322f62579a5f9582ee749370 /aclocal.m4
parent78726377e4cc74b0ec1b1d0ccfac81a048e3858a (diff)
2002-01-05 Roland McGrath <roland@frob.com>
* aclocal.m4 (hurd_MIG_RETCODE): New macro. * configure.in: Broken out of here, now use that.
Diffstat (limited to 'aclocal.m4')
-rw-r--r--aclocal.m423
1 files changed, 23 insertions, 0 deletions
diff --git a/aclocal.m4 b/aclocal.m4
index 27ac5245..fa830c37 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -71,3 +71,26 @@ AC_MSG_RESULT($ac_cv_prog_cc_cross)
AC_SUBST(cross_linkable)
cross_compiling=$ac_cv_prog_cc_cross
])
+
+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>&AC_FD_CC]); 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])