>From 76e875684eccca9c8d5df16d88cdf1573083ce24 Mon Sep 17 00:00:00 2001
From: Emilio Pozuelo Monfort <pochu27@gmail.com>
Date: Fri, 30 Jul 2010 14:26:31 +0200
Subject: [PATCH] Add check for file_exec_file_name

---
 aclocal.m4                     |   17 +++++++++++++++++
 sysdeps/mach/hurd/configure.in |    3 +++
 2 files changed, 20 insertions(+), 0 deletions(-)

diff --git a/aclocal.m4 b/aclocal.m4
index 06adbaa..7e1eb37 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -123,3 +123,20 @@ AC_CACHE_CHECK(whether $LD is GNU ld, libc_cv_prog_ld_gnu,
 [LIBC_PROG_FOO_GNU($LD, libc_cv_prog_ld_gnu=yes, libc_cv_prog_ld_gnu=no)])
 gnu_ld=$libc_cv_prog_ld_gnu
 ])
+
+dnl AC_CHECK_MIG_FUNC(DEFS-FILE, FUNCTION, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
+AC_DEFUN([AC_CHECK_MIG_FUNC],
+[
+  AS_VAR_PUSHDEF([ac_var], [ac_cv_func_$2])
+  AC_CACHE_CHECK([for $2], ac_var,
+   [mig -q -V -list conf.mig.list -server conf.mig.server \
+	-user conf.mig.user -header conf.mig.header $1
+    if grep -wq $2 conf.mig.list; then
+      AS_VAR_SET(ac_var, yes)
+    else
+      AS_VAR_SET(ac_var, no)
+    fi
+    rm -f conf.mig.*])
+  AS_IF([test AS_VAR_GET(ac_var) = yes], [$3], [$4])
+  AS_VAR_POPDEF([ac_var])
+])
diff --git a/sysdeps/mach/hurd/configure.in b/sysdeps/mach/hurd/configure.in
index 87c07c1..370be79 100644
--- a/sysdeps/mach/hurd/configure.in
+++ b/sysdeps/mach/hurd/configure.in
@@ -24,6 +24,9 @@ case "$machine" in
     ;;
 esac
 
+AC_CHECK_MIG_FUNC([/usr/include/hurd/fs.defs], [file_exec_file_name],,
+  [AC_MSG_ERROR('Your Hurd definitions dont provide file_exec_file_name')])
+
 AC_CACHE_CHECK(Hurd header version, libc_cv_hurd_version, [dnl
 AC_TRY_COMPILE(dnl
 [#include <hurd/version.h>], [
-- 
1.7.1