diff --git a/README.md b/README.md
index f0b0b853..fdf932b6 100644
--- a/README.md
+++ b/README.md
@@ -5,10 +5,6 @@ https://github.com/sionescu/libfixposix - and its headers in order to
 compile. LibFixPOSIX can either be installed manually, for which there
 are instructions in the source code, or through distro repositories.
 
-As of Debian 9.0 Stable, the libfixposix package uses code from 2011,
-which is incompatible with the current IOlib and will cause a SEGFAULT
-on load. Don't use it.
-
 * Tests
  Some of the socket tests require an echo server, the default being
 one on the Internet. If you can't use that, set
diff --git a/src/grovel/grovel.lisp b/src/grovel/grovel.lisp
index 1c4751fb..4ffe0a45 100644
--- a/src/grovel/grovel.lisp
+++ b/src/grovel/grovel.lisp
@@ -278,6 +278,7 @@ int main(int argc, char**argv) {
 (defparameter *cxx*
   (fcase
     (:freebsd "clang++")
+    (:openbsd "eg++")
     ((or :cygwin (not (or :windows :freebsd))) "g++")
     ((and :windows (not :cygwin)) "c:/msys/1.0/bin/g++.exe")))
 
@@ -291,8 +292,9 @@ int main(int argc, char**argv) {
      (:darwin '("-I" "/opt/local/include/"))
      ;; FreeBSD non-base header files
      ;; DragonFly Dports install software in /usr/local
+     ;; OpenBSD install lfp in /usr/local/include
      ;; And what about pkgsrc?
-     ((or :freebsd :dragonfly) '("-I" "/usr/local/include/"))
+     ((or :freebsd :dragonfly :openbsd) '("-I" "/usr/local/include/"))
      (t '()))))
 
 ;;; FIXME: is there a better way to detect whether these flags
diff --git a/src/sockets/conditions.lisp b/src/sockets/conditions.lisp
index 2c98efea..edbfa374 100644
--- a/src/sockets/conditions.lisp
+++ b/src/sockets/conditions.lisp
@@ -57,6 +57,7 @@
 (define-socket-error socket-network-down-error            :enetdown)
 (define-socket-error socket-network-reset-error           :enetreset)
 (define-socket-error socket-network-unreachable-error     :enetunreach)
+#-openbsd
 (define-socket-error socket-no-network-error              :enonet)
 (define-socket-error socket-connection-aborted-error      :econnaborted)
 (define-socket-error socket-connection-reset-error        :econnreset)
diff --git a/src/sockets/grovel.lisp b/src/sockets/grovel.lisp
index 5c65bba4..263c1bd4 100644
--- a/src/sockets/grovel.lisp
+++ b/src/sockets/grovel.lisp
@@ -47,6 +47,7 @@
   (:eprototype "EPROTOTYPE")
   (:enoprotoopt "ENOPROTOOPT")
   (:eremote "EREMOTE")
+  #-openbsd
   (:enolink "ENOLINK")
   (:epfnosupport "EPFNOSUPPORT")
   (:eafnosupport "EAFNOSUPPORT")
diff --git a/src/syscalls/ffi-types-unix.lisp b/src/syscalls/ffi-types-unix.lisp
index bd858177..6073d55d 100644
--- a/src/syscalls/ffi-types-unix.lisp
+++ b/src/syscalls/ffi-types-unix.lisp
@@ -71,12 +71,19 @@
  (:eaddrnotavail "EADDRNOTAVAIL")
  (:eadv "EADV" :optional t)
  (:eafnosupport "EAFNOSUPPORT")
+ #+openbsd
+ (:eagain "EAGAIN")
  (:ealready "EALREADY")
+ #+openbsd
+ (:eauth "EAUTH" :optional t)
  (:ebade "EBADE" :optional t)
  (:ebadf "EBADF")
  (:ebadfd "EBADFD" :optional t)
+ #-openbsd
  (:ebadmsg "EBADMSG")
  (:ebadr "EBADR" :optional t)
+ #+openbsd
+ (:ebadrpc "EBADRPC" :optional t)
  (:ebadrqc "EBADRQC" :optional t)
  (:ebadslt "EBADSLT" :optional t)
  (:ebfont "EBFONT" :optional t)
@@ -96,7 +103,12 @@
  (:eexist "EEXIST")
  (:efault "EFAULT")
  (:efbig "EFBIG")
+ #+openbsd
+ (:eftype "FTYPE" :optional t)
+ #-openbsd
  (:ehostdown "EHOSTDOWN")
+ #+openbsd
+ (:ehostdown "EHOSTDOWN" :optional t)
  (:ehostunreach "EHOSTUNREACH")
  (:ehwpoison "EHWPOISON" :optional t)
  (:eidrm "EIDRM")
@@ -105,6 +117,8 @@
  (:eintr "EINTR")
  (:einval "EINVAL")
  (:eio "EIO")
+ #+openbsd
+ (:eipsec "EIPSEC" :optional t)
  (:eisconn "EISCONN")
  (:eisdir "EISDIR")
  (:eisnam "EISNAM" :optional t)
@@ -115,6 +129,8 @@
  (:el2nsync "EL2NSYNC" :optional t)
  (:el3hlt "EL3HLT" :optional t)
  (:el3rst "EL3RST" :optional t)
+ #+openbsd
+ (:elast "ELAST" :optional t) 
  (:elibacc "ELIBACC" :optional t)
  (:elibbad "ELIBBAD" :optional t)
  (:elibexec "ELIBEXEC" :optional t)
@@ -126,14 +142,19 @@
  (:emfile "EMFILE")
  (:emlink "EMLINK")
  (:emsgsize "EMSGSIZE")
+ #-openbsd
  (:emultihop "EMULTIHOP")
  (:enametoolong "ENAMETOOLONG")
  (:enavail "ENAVAIL" :optional t)
+ #+openbsd
+ (:eneedauth "ENEEDAUTH" :optional t)
  (:enetdown "ENETDOWN")
  (:enetreset "ENETRESET")
  (:enetunreach "ENETUNREACH")
  (:enfile "ENFILE")
  (:enoano "ENOANO" :optional t)
+ #+openbsd
+ (:enoattr "ENOATTR" :optional t)
  (:enobufs "ENOBUFS")
  (:enocsi "ENOCSI" :optional t)
  (:enodata "ENODATA" :optional t)
@@ -142,6 +163,7 @@
  (:enoexec "ENOEXEC")
  (:enokey "ENOKEY" :optional t)
  (:enolck "ENOLCK")
+ #-openbsd
  (:enolink "ENOLINK")
  (:enomedium "ENOMEDIUM" :optional t)
  (:enomem "ENOMEM")
@@ -170,6 +192,15 @@
  (:eperm "EPERM")
  (:epfnosupport "EPFNOSUPPORT" :optional t)
  (:epipe "EPIPE")
+ #+openbsd
+ (:eproclim "EPROCLIM" :optional t)
+ #+openbsd
+ (:eprocunavail "EPROCUNAVAIL" :optional t)
+ #+openbsd
+ (:eprogmismatch "EPROGMISMATCH" :optional t)
+ #+openbsd
+ (:eprogunavail "EPROGUNAVAIL" :optional t)
+ #-openbsd
  (:eproto "EPROTO")
  (:eprotonosupport "EPROTONOSUPPORT")
  (:eprototype "EPROTOTYPE")
@@ -180,7 +211,12 @@
  (:erestart "ERESTART" :optional t)
  (:erfkill "ERFKILL" :optional t)
  (:erofs "EROFS")
+ #+openbsd
+ (:erpcmismatch "ERPCMISMATCH" :optional t)
+ #-openbsd
  (:eshutdown "ESHUTDOWN")
+ #+openbsd
+ (:eshutdown "ESHUTDOWN" :optional t)
  (:esocktnosupport "ESOCKTNOSUPPORT" :optional t)
  (:espipe "ESPIPE")
  (:esrch "ESRCH")