$OpenBSD: patch-boehm-gc_dyn_load_c,v 1.1.1.1 2012/04/23 15:56:41 pascal Exp $
--- boehm-gc/dyn_load.c.orig	Wed Jun 29 10:19:08 2011
+++ boehm-gc/dyn_load.c	Mon Apr  2 16:34:32 2012
@@ -60,6 +60,7 @@
     !defined(HPUX) && !(defined(LINUX) && defined(__ELF__)) && \
     !defined(RS6000) && !defined(SCO_ELF) && !defined(DGUX) && \
     !(defined(FREEBSD) && defined(__ELF__)) && \
+    !(defined(OPENBSD) && defined(__ELF__)) && \
     !(defined(NETBSD) && defined(__ELF__)) && !defined(HURD) && \
     !defined(DARWIN)
  --> We only know how to find data segments of dynamic libraries for the
@@ -99,9 +100,9 @@
 
 #if defined(LINUX) && defined(__ELF__) || defined(SCO_ELF) || \
     (defined(FREEBSD) && defined(__ELF__)) || defined(DGUX) || \
+    (defined(OPENBSD) && defined(__ELF__)) || \
     (defined(NETBSD) && defined(__ELF__)) || defined(HURD)
 #   include <stddef.h>
-#   include <elf.h>
 #   include <link.h>
 #endif
 
@@ -115,7 +116,7 @@
 #        define ElfW(type) Elf64_##type
 #      endif
 #    else
-#      ifdef NETBSD
+#      if defined(NETBSD) || defined(OPENBSD)
 #        if ELFSIZE == 32
 #          define ElfW(type) Elf32_##type
 #        else
@@ -364,6 +365,7 @@ void GC_register_dynamic_libraries()
 
 #if defined(LINUX) && defined(__ELF__) || defined(SCO_ELF) || \
     (defined(FREEBSD) && defined(__ELF__)) || defined(DGUX) || \
+    (defined(OPENBSD) && defined(__ELF__)) || \
     (defined(NETBSD) && defined(__ELF__)) || defined(HURD)
 
 
@@ -555,7 +557,7 @@ GC_bool GC_register_main_static_data()
 /* This doesn't necessarily work in all cases, e.g. with preloaded
  * dynamic libraries.						*/
 
-#if defined(NETBSD)
+#if defined(NETBSD) || defined(OPENBSD)
 #  include <sys/exec_elf.h>
 /* for compatibility with 1.4.x */
 #  ifndef DT_DEBUG