diff --git a/boehm-gc/ChangeLog b/boehm-gc/ChangeLog
index 03a222e68c2..4a9f4766456 100644
--- a/boehm-gc/ChangeLog
+++ b/boehm-gc/ChangeLog
@@ -1,3 +1,8 @@
+2011-02-02  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* configure.ac: Don't use libdl on mips-sgi-irix6*.
+	* configure: Regenerate.
+
 2011-01-31  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* configure.ac (*-*-solaris2*): Add -lrt to THREADLIBS.
diff --git a/boehm-gc/configure b/boehm-gc/configure
index 4f7490cbcc7..ef16f4b0fe5 100755
--- a/boehm-gc/configure
+++ b/boehm-gc/configure
@@ -15088,9 +15088,12 @@ fi
   *) ;;
 esac
 
-# We never want libdl on darwin. It is a fake libdl that just ends up making
-# dyld calls anyway
 case "$host" in
+  # While IRIX 6 has libdl for the O32 and N32 ABIs, it's missing for N64
+  # and unnecessary everywhere.
+  mips-sgi-irix6*) ;;
+  # We never want libdl on darwin. It is a fake libdl that just ends up making
+  # dyld calls anyway
   *-*-darwin*) ;;
   *)
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
diff --git a/boehm-gc/configure.ac b/boehm-gc/configure.ac
index 42cd4190df9..61e12aafe67 100644
--- a/boehm-gc/configure.ac
+++ b/boehm-gc/configure.ac
@@ -1,4 +1,4 @@
-# Copyright (c) 1999, 2000, 2001, 2002, 2003, 2006, 2010 by Red Hat, Inc.
+# Copyright (c) 1999, 2000, 2001, 2002, 2003, 2006, 2010, 2011 by Red Hat, Inc.
 # All rights reserved.
 # Copyright 2004 Nathanael Nerode
 # 
@@ -312,9 +312,12 @@ case "$host" in
   *) ;;
 esac
 
-# We never want libdl on darwin. It is a fake libdl that just ends up making
-# dyld calls anyway
 case "$host" in
+  # While IRIX 6 has libdl for the O32 and N32 ABIs, it's missing for N64
+  # and unnecessary everywhere.
+  mips-sgi-irix6*) ;;
+  # We never want libdl on darwin. It is a fake libdl that just ends up making
+  # dyld calls anyway
   *-*-darwin*) ;;
   *)
     AC_CHECK_LIB(dl, dlopen, EXTRA_TEST_LIBS="$EXTRA_TEST_LIBS -ldl")