Index: config.mk.in
--- config.mk.in.orig
+++ config.mk.in
@@ -255,6 +255,18 @@ ifeq ($(patsubst netbsd%,netbsd,$(HOST_OS)),netbsd)
   NEED_WL_RPATH=yes
 endif
 
+ifeq ($(patsubst openbsd%,openbsd,$(HOST_OS)),openbsd)
+  SHARED_LIB_TYPE = unix
+  SHLIB_SUFFIX = so
+  MUST_BUILD_SHLIB = Y
+  MUST_BUILD_SHLIBLE = Y
+  shlibfn = $(1:%=%.$(SHLIB_SUFFIX).$(MAJ).$(MIN))
+  shliblefn = $(1:%=%.$(SHLIB_SUFFIX))
+  CFLAGS_SHLIB = -fpic
+  LDFLAGS_SHLIB = -shared -Wl,-soname,$(SONAME) $(SHLIB_CLIB)
+  NEED_WL_RPATH=yes
+endif
+
 ifeq ($(patsubst freebsd%,freebsd,$(HOST_OS)),freebsd)
   SHARED_LIB_TYPE = unix
   SHLIB_SUFFIX = so