$OpenBSD$
--- configure.ac.orig	Sun Feb  9 11:18:59 2014
+++ configure.ac	Sun Feb  9 11:19:10 2014
@@ -570,7 +570,7 @@ AC_CHECK_HEADERS([fcntl.h math.h errno.h ctype.h limit
 
 
 # Checks for headers that are only required on some systems or opional (and where we do NOT abort if they are not there)
-AC_CHECK_HEADERS([malloc.h malloc/malloc.h langinfo.h sys/param.h sys/mount.h sys/statvfs.h sys/select.h sockLib.h sys/mman.h sys/msg.h sys/vfs.h arpa/inet.h fcntl.h libintl.h netdb.h netinet/in.h netinet/in_systm.h netinet/ip.h sys/ioctl.h sys/socket.h sys/time.h unistd.h kstat.h sys/sysinfo.h kvm.h sys/file.h sys/resource.h ifaddrs.h mach/mach.h stddef.h sys/timeb.h terminos.h argz.h ucred.h endian.h sys/endian.h execinfo.h])
+AC_CHECK_HEADERS([malloc.h malloc/malloc.h langinfo.h sys/param.h sys/mount.h sys/statvfs.h sys/select.h sockLib.h sys/mman.h sys/msg.h sys/vfs.h arpa/inet.h fcntl.h libintl.h netdb.h netinet/in.h netinet/in_systm.h netinet/ip.h sys/ioctl.h sys/socket.h sys/time.h unistd.h kstat.h sys/sysinfo.h kvm.h sys/file.h sys/resource.h ifaddrs.h mach/mach.h stddef.h sys/timeb.h terminos.h argz.h sys/ucred.h ucred.h endian.h sys/endian.h execinfo.h])
 
 SAVE_LDFLAGS=$LDFLAGS
 SAVE_CPPFLAGS=$CPPFLAGS
